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installbak.exe

搜狗拼音输入法

Sogou.com

The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. The file has been seen being downloaded from download.ime.sogou.com and multiple other hosts.
Publisher:
Sogou.com Inc.  (signed by Sogou.com)

Product:
搜狗拼音输入法

Description:
搜狗拼音输入法 安装程序

Version:
7.2.0.2548

MD5:
581153c6c48b2d4dc53973352de9a3c5

SHA-1:
ee572c2093530891fc5cb23ec8e876dcda5d331f

SHA-256:
1cbbf35ecd76d812c1dec829f641d35feb7fdcbe4865946f920e1c0d36adf954

Scanner detections:
4 / 68

Status:
Inconclusive  (probably just false positive detections)

Analysis date:
4/16/2024 10:59:26 PM UTC  (today)

Scan engine
Detection
Engine version

Dr.Web
DLOADER.Trojan
9.0.1.0224

Emsisoft Anti-Malware
Trojan.Generic.8137561
8.14.08.12.07

NANO AntiVirus
Trojan.Win32.DownLoad2.csihiu
0.28.2.61148

Trend Micro House Call
TROJ_GE.48818833
7.2.224

File size:
32.3 MB (33,836,088 bytes)

Product version:
7.2.0.2548

Copyright:
© 2014 Sogou.com Inc. All rights reserved.

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
Language Neutral

Common path:
C:\Program Files\sogouinput\7.2.0.2548\sgrepairbackup\installbak.exe

Digital Signature
Signed by:
Sogou.com

Authority:
VeriSign, Inc.

Valid from:
6/24/2012 6:00:00 PM

Valid to:
8/24/2015 5:59:59 PM

Subject:
CN=Sogou.com, OU=Desktop, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Sogou.com, L=Beijing, S=Beijing, C=CN

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
59B95D558C2DCC523572E3F8F9A5F79D

File PE Metadata
Compilation timestamp:
4/10/2010 6:19:31 AM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
786432:9LhWeXp1BVl8RzaiMo1++1J+hRLBxwJEZQ4ylUtzUq04Dm7Z77lz9:9LhWeXp1BIRGiMVw8fLHCUQdlUtzW4Ct

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:
7.9997

Packer / compiler:
Nullsoft install system v2.x

Code size:
25 KB (25,600 bytes)

The file installbak.exe has been seen being distributed by the following 3 URLs.

http://download.ime.sogou.com/.../sogou_pinyin_72c.exe

http://ime.sogou.com/dl/.../sogou_pinyin_72c.exe

http://pinyin.sogou.com/softdown.php?v=7.2&type=c&ref=indexbanner

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