downloader_ie8.exe

Fengxia Cao

The application downloader_ie8.exe by Fengxia Cao has been detected as a potentially unwanted program by 1 anti-malware scanner with very strong indications that the file is a potential threat. While running, it connects to the Internet address server-52-84-246-180.sfo20.r.cloudfront.net on port 80 using the HTTP protocol.
Publisher:
Fengxia Cao  (signed and verified)

Description:
Net tool

Version:
8.0.7600.16385

MD5:
836e8f44f40f25ad0f56bf8d8831523c

SHA-1:
431e266aaeb6ee901b6b5fafc426d92db6903fe2

SHA-256:
a54e812cf7104fc0c39865f722e684924ca440240cf43c77674e8b835564de9f

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
7/18/2018 2:08:51 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.Elex.FC (M)
17.3.16.10

File size:
1.8 MB (1,851,064 bytes)

Product version:
8.0.7600.16385

Original file name:
Net

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\windows\temp\{random}.tmp\downloader_ie8.exe

Digital Signature
Signed by:

Authority:
thawte, Inc.

Valid from:
1/10/2017 4:00:00 AM

Valid to:
10/14/2017 3:59:59 AM

Subject:
CN=Fengxia Cao, OU=Individual Developer, O=No Organization Affiliation, L=Beijing, S=Beijing, C=CN

Issuer:
CN=thawte SHA256 Code Signing CA, O="thawte, Inc.", C=US

Serial number:
3B6536249C7E938DA013110B8048B326

File PE Metadata
Compilation timestamp:
3/16/2017 11:04:07 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

Entry address:
0x25B4F

Entry point:
E8, 8E, BB, 00, 00, E9, 7F, FE, FF, FF, 55, 8B, EC, 8D, 45, 14, 50, 6A, 00, FF, 75, 10, FF, 75, 0C, FF, 75, 08, E8, 79, F6, FF, FF, 83, C4, 14, 5D, C3, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, 8B, 44, 24, 0C, 53, 85, C0, 74, 52, 8B, 54, 24, 08, 33, DB, 8A, 5C, 24, 0C, F7, C2, 03, 00, 00, 00, 74, 16, 8A, 0A, 83, C2, 01, 32, CB, 74, 72, 83, E8, 01, 74, 32, F7, C2, 03, 00, 00, 00, 75, EA, 83, E8, 04, 72, 12, 57, 8B, FB, C1, E3, 08, 03, DF, 8B, FB, C1, E3, 10, 03, DF, EB, 1B, 5F, 83, C0, 04, 74, 0E, 8A, 0A...
 
[+]

Code size:
1.2 MB (1,260,032 bytes)

The executing file has been seen to make the following network communications in live environments.

TCP (HTTP):
Connects to server-54-230-216-212.mrs50.r.cloudfront.net  (54.230.216.212:80)

TCP (HTTP):
Connects to server-54-192-36-131.jfk1.r.cloudfront.net  (54.192.36.131:80)

TCP (HTTP):
Connects to server-54-230-81-41.mia50.r.cloudfront.net  (54.230.81.41:80)

TCP (HTTP):
Connects to server-54-192-130-160.ams50.r.cloudfront.net  (54.192.130.160:80)

TCP (HTTP):
Connects to server-54-230-206-164.atl50.r.cloudfront.net  (54.230.206.164:80)

TCP (HTTP):
Connects to server-52-84-246-180.sfo20.r.cloudfront.net  (52.84.246.180:80)

TCP (HTTP):
Connects to server-52-85-83-198.lax1.r.cloudfront.net  (52.85.83.198:80)

TCP (HTTP):
Connects to server-54-230-216-210.mrs50.r.cloudfront.net  (54.230.216.210:80)

TCP (HTTP):
Connects to server-52-85-173-92.fra6.r.cloudfront.net  (52.85.173.92:80)

TCP (HTTP):
Connects to server-54-230-187-58.cdg51.r.cloudfront.net  (54.230.187.58:80)

TCP (HTTP):
Connects to server-52-85-83-213.lax1.r.cloudfront.net  (52.85.83.213:80)

TCP (HTTP):
Connects to server-52-85-63-119.lhr50.r.cloudfront.net  (52.85.63.119:80)

TCP (HTTP):
Connects to server-52-84-246-237.sfo20.r.cloudfront.net  (52.84.246.237:80)

TCP (HTTP):
Connects to server-54-240-186-118.mad50.r.cloudfront.net  (54.240.186.118:80)

TCP (HTTP):
Connects to server-54-230-216-6.mrs50.r.cloudfront.net  (54.230.216.6:80)

TCP (HTTP):
Connects to server-54-230-216-244.mrs50.r.cloudfront.net  (54.230.216.244:80)

TCP (HTTP):
Connects to server-54-230-206-162.atl50.r.cloudfront.net  (54.230.206.162:80)

TCP (HTTP):
Connects to server-54-230-0-81.lhr5.r.cloudfront.net  (54.230.0.81:80)

TCP (HTTP):
Connects to server-54-230-0-181.lhr5.r.cloudfront.net  (54.230.0.181:80)

TCP (HTTP):
Connects to server-54-230-0-139.lhr5.r.cloudfront.net  (54.230.0.139:80)

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