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chromeupdate_tsv54jr2u.exe

Suzhou Puluosi Info Tech Co., Ltd.

The application chromeupdate_tsv54jr2u.exe by Suzhou Puluosi Info Tech 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. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. It is also typically executed from an Internet Explorer cache folder. The file has been seen being downloaded from dde.de.saeaserviceabouthome.com.
Publisher:
Suzhou Puluosi Info Tech Co., Ltd.  (signed and verified)

MD5:
b82387c252977268b6159db1b4e0d99e

SHA-1:
39ca5ca82c4fcfe8ea8c334ab48db8667edb6c5f

SHA-256:
6f1719e5d86441cf33109a0a105322e962a83881eb922f6d308df9811f81fb70

Scanner detections:
1 / 68

Status:
Potentially unwanted

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

Analysis date:
11/25/2024 12:46:54 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.JiangsuCN.SuzhouPuluosiInfoTechCo.Installer (M)
16.1.26.10

File size:
808.3 KB (827,712 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\chromeupdate_tsv54jr2u.exe

Digital Signature
Signed by:
Suzhou Puluosi Info Tech Co., Ltd.

Authority:
WoSign CA Limited

Valid from:
12/11/2014 12:40:41 AM

Valid to:
12/11/2015 12:40:41 AM

Subject:
CN="Suzhou Puluosi Info Tech Co., Ltd.", O="Suzhou Puluosi Info Tech Co., Ltd.", L=Suzhou, S=Jiangsu, C=CN

Issuer:
CN=WoSign Class 3 Code Signing CA, O=WoSign CA Limited, C=CN

Serial number:
1684E2745B76062361689E5BC4E611CB

File PE Metadata
Compilation timestamp:
2/24/2012 11:19:59 AM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
24576:y+B9KGDx4kRZFggtriZ1brP5dTtiF9OJTDQ:TB99DxlNRrQtdhiUX

Entry address:
0x39E3

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, 91, 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, C0, 82, 40, 00, 6A, 08, A3, B8, 2E, 47, 00, E8, 37, 2A, 00, 00, 55, 68, B4, 02, 00, 00, A3, D0, 2D, 47, 00, 8D, 44, 24, 38, 50, 55, 68, 1C, 93, 40, 00, FF, 15, 84, 81, 40, 00, 68, 04, 93, 40, 00, 68, C0, AD, 46, 00, E8, 19, 27, 00, 00, FF, 15, B4, 80, 40, 00, 50, BF, A0, 30, 4C, 00, 57, E8, 07, 27, 00, 00...
 
[+]

Entropy:
7.8163

Packer / compiler:
Nullsoft install system v2.x

Code size:
28 KB (28,672 bytes)

The file chromeupdate_tsv54jr2u.exe has been seen being distributed by the following URL.

http://dde.de.saeaserviceabouthome.com/90/978/ct9783290/6769e4cc26c94987840673c7dabceeda/Downloads/Prod/DDE1.4.0.5.150114.01/.../ChromeUpdate.exe

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