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skypeupdateex_setup.exe

Ren Jing

The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. The file has been seen being downloaded from dp8uklaiq5180.cloudfront.net and multiple other hosts.
Publisher:
Ren Jing  (signed and verified)

MD5:
ea6d9efa9529547e1d82f66f0a45db36

SHA-1:
3e18d6d07201ea962c3d6638e109a5b79a8a3904

SHA-256:
d82c0e289a28ac13c48f343ab05e03c6be5924b1e6f2baf960997a889116a4b6

Scanner detections:
0 / 68

Status:
Clean (as of last analysis)

Analysis date:
5/4/2024 5:16:02 PM UTC  (today)

File size:
131.6 KB (134,736 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\skypeupdateex_setup.exe

Digital Signature
Signed by:
Ren Jing

Authority:
WoSign CA Limited

Valid from:
8/26/2015 7:14:33 PM

Valid to:
8/26/2016 7:14:33 PM

Subject:
CN=Ren Jing, L=Beijing, S=Beijing, C=CN

Issuer:
CN=WoSign Class 2 Code Signing CA, O=WoSign CA Limited, C=CN

Serial number:
4AABE7C4E55AE3765929658935834CFD

File PE Metadata
Compilation timestamp:
7/6/2011 7:31:20 AM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
3072:kcmVWD5ltbmP3Q7ym45qcPbR39gg/oa+WhWotOGQs:7mJIXl+328+8as

Entry address:
0x354B

Entry point:
81, EC, D4, 02, 00, 00, 53, 55, 56, 57, 6A, 20, 33, ED, 5E, 89, 6C, 24, 18, C7, 44, 24, 10, D8, 84, 40, 00, 89, 6C, 24, 14, FF, 15, 30, 80, 40, 00, 68, 01, 80, 00, 00, FF, 15, B8, 80, 40, 00, 55, FF, 15, B0, 82, 40, 00, 6A, 08, A3, 98, 06, 47, 00, E8, 67, 27, 00, 00, 55, 68, B4, 02, 00, 00, A3, B0, 05, 47, 00, 8D, 44, 24, 38, 50, 55, 68, 1C, 86, 40, 00, FF, 15, 80, 81, 40, 00, 68, 04, 86, 40, 00, 68, A0, 85, 46, 00, E8, 35, 26, 00, 00, FF, 15, B4, 80, 40, 00, 50, BF, A0, 10, 4C, 00, 57, E8, 23, 26, 00, 00...
 
[+]

Entropy:
7.6089

Packer / compiler:
Nullsoft install system v2.x

Code size:
25 KB (25,600 bytes)

The file skypeupdateex_setup.exe has been seen being distributed by the following 5 URLs.

http://dp8uklaiq5180.cloudfront.net/seed_storage//.../SkypeUpdateEx_setup.exe

http://d4dhk4221cz7n.cloudfront.net/seed_storage//.../SkypeUpdateEx_setup.exe

http://df7w3ytxcdxth.cloudfront.net/seed_storage//.../SkypeUpdateEx_setup.exe

http://d385c1n0o64nql.cloudfront.net/seed_storage//.../SkypeUpdateEx_setup.exe

http://d3ih1jowwmnf4t.cloudfront.net/seed_storage//.../SkypeUpdateEx_setup.exe

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