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unitchanger_v120c.exe

Postmedia Co.,Ltd

The application unitchanger_v120c.exe by Postmedia Co.,Ltd has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. The file has been seen being downloaded from www.winutil.co.kr.
Publisher:
Postmedia Co.,Ltd  (signed and verified)

Description:
utiltop

Version:
1.1.0.1

MD5:
a4ccd54aee570d5cdb588d6c5a9e42d6

SHA-1:
6f1c2d39d78820ab633aad2aec02b6ad189866d3

SHA-256:
dbc122fcda3215e1925ab21dbd4a0968a76cd811c08c46031a64c7ee1fe74bc4

Scanner detections:
1 / 68

Status:
Adware

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:
4/18/2024 3:09:13 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP (M)
16.7.16.17

File size:
1.8 MB (1,895,184 bytes)

Product version:
1.1.0.1

Original file name:
utiltop.exe

File type:
Executable application (Win32 EXE)

Common path:
C:\users\{user}\downloads\unitchanger_v120c.exe

Digital Signature
Signed by:
Postmedia Co.,Ltd

Authority:
Thawte, Inc.

Valid from:
8/22/2014 9:00:00 AM

Valid to:
8/23/2015 8:59:59 AM

Subject:
CN="Postmedia Co.,Ltd", O="Postmedia Co.,Ltd", L=Nam-gu, S=Busan, C=KR

Issuer:
CN=Thawte Code Signing CA - G2, O="Thawte, Inc.", C=US

Serial number:
22B7589F7A16EDF439A478D0F3292E53

File PE Metadata
Compilation timestamp:
8/22/2013 1:52:13 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
49152:95SQhikuLR9AV1bGUxVGdMsB4FgNhmUiZ20fGC35LiynuhnBK:eQhikuUVEUxVGdPB4FgnafX35LiyoBK

Entry address:
0x10CAF4

Entry point:
E8, 0F, 7B, 00, 00, E9, 89, FE, FF, FF, 3B, 0D, 90, 5C, 58, 00, 75, 02, F3, C3, E9, 96, 7B, 00, 00, 8B, FF, 55, 8B, EC, 8B, 45, 14, 56, 85, C0, 74, 41, 83, 7D, 08, 00, 75, 13, E8, 98, 23, 00, 00, 6A, 16, 5E, 89, 30, E8, 04, 7E, 00, 00, 8B, C6, EB, 2A, 83, 7D, 10, 00, 74, E7, 39, 45, 0C, 73, 0E, E8, 7A, 23, 00, 00, 6A, 22, 59, 89, 08, 8B, F1, EB, DE, 50, FF, 75, 10, FF, 75, 08, E8, F8, 06, 00, 00, 83, C4, 0C, 33, C0, 5E, 5D, C3, 8B, FF, 55, 8B, EC, 8B, 4D, 10, 85, C9, 74, 1B, 8B, 45, 0C, 0F, B7, D0, 8B, C2...
 
[+]

Entropy:
6.3730

Code size:
1.2 MB (1,257,984 bytes)

The file unitchanger_v120c.exe has been seen being distributed by the following URL.

http://www.winutil.co.kr/dn.asp?pcode=1002&seq=29747

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