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2b3b.tmp

Beijing Caiyunshidai Technology Co., Ltd.

The file 2b3b.tmp by Beijing Caiyunshidai Technology Co. 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-52-85-63-141.lhr50.r.cloudfront.net on port 80 using the HTTP protocol.
Publisher:
Beijing Caiyunshidai Technology Co., Ltd.  (signed and verified)

MD5:
588a816addca98bcb1243a26bf1fefa2

SHA-1:
10bee0097faea9ccce2d8a210fb7586908bf2de1

SHA-256:
30c6d51351712c963c6598fdd15ebab22eaddf433db224f44076723407360f0b

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
5/17/2024 5:44:43 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.ELEX.SpeedSearch (M)
17.2.11.13

File size:
399.7 KB (409,256 bytes)

Common path:
C:\windows\temp\2b3b.tmp

Digital Signature
Signed by:
Beijing Caiyunshidai Technology Co., Ltd.

Authority:
thawte, Inc.

Valid from:
1/23/2017 3:00:00 AM

Valid to:
3/4/2017 2:59:59 AM

Subject:
CN="Beijing Caiyunshidai Technology Co., Ltd.", O="Beijing Caiyunshidai Technology Co., Ltd.", L=Beijing, S=Beijing, C=CN

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

Serial number:
011AE675B36A4BE7F940903CF54E8522

File PE Metadata
Compilation timestamp:
2/9/2017 12:36:31 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

Entry address:
0x9C3A

Entry point:
E8, 9B, BC, FF, FF, E9, 07, 19, 00, 00, 3B, 0D, 00, 10, 46, 00, 75, 02, F3, C3, E9, FC, B7, FF, FF, 6A, 64, 68, D8, 02, 46, 00, E8, 31, 1B, 00, 00, 6A, 0B, E8, AB, E9, FF, FF, 59, 33, DB, 89, 5D, FC, 6A, 40, 6A, 20, 5F, 57, E8, 00, 95, FF, FF, 59, 59, 8B, C8, 89, 4D, DC, 85, C9, 75, 1B, 6A, FE, 8D, 45, F0, 50, 68, 00, 10, 46, 00, E8, 4E, 2E, 00, 00, 83, C4, 0C, 83, C8, FF, E9, 5B, 02, 00, 00, A3, F0, 2E, 46, 00, 89, 3D, 4C, 5B, 46, 00, 05, 00, 08, 00, 00, 3B, C8, 73, 31, 66, C7, 41, 04, 00, 0A, 83, 09, FF...
 
[+]

Entropy:
7.8219  (probably packed)

Code size:
359 KB (367,616 bytes)

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

TCP (HTTP):
Connects to server-52-85-63-239.lhr50.r.cloudfront.net  (52.85.63.239:80)

TCP (HTTP):
Connects to server-54-192-3-30.lhr5.r.cloudfront.net  (54.192.3.30:80)

TCP (HTTP):
Connects to server-52-85-63-141.lhr50.r.cloudfront.net  (52.85.63.141:80)

TCP (HTTP):
Connects to server-52-85-173-86.fra6.r.cloudfront.net  (52.85.173.86:80)

TCP (HTTP):
Connects to server-52-85-173-84.fra6.r.cloudfront.net  (52.85.173.84:80)

TCP (HTTP):
Connects to server-52-85-173-6.fra6.r.cloudfront.net  (52.85.173.6:80)

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