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mm2kor.exe

GMT

The application mm2kor.exe by GMT 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. The file has been seen being downloaded from blogattach.naver.net.
Publisher:
GMT  (signed and verified)

MD5:
0a6e138c2cf88be5c251bd16f95d8d82

SHA-1:
6ec48cebeb51bd35c1c6d5cccd23c42e6f7bbfb5

SHA-256:
67d2ca0fb9c594cfe050c8064a6ef490b2df6d34cbb9cc2e8dea5d380a3858de

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:
12/24/2024 5:12:01 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.TomorrowSoftware (M)
16.8.9.6

File size:
266.9 KB (273,256 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\downloads\mm2kor.exe

Digital Signature
Signed by:
GMT

Authority:
Thawte, Inc.

Valid from:
9/18/2012 9:00:00 AM

Valid to:
12/19/2013 8:59:59 AM

Subject:
CN=GMT, O=GMT, L=Gyeyang-gu, S=INCHEON, C=KR

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

Serial number:
61D926C4BC50F40A050D02355CD98EC4

File PE Metadata
Compilation timestamp:
12/6/2009 7:50:52 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
6144:Ze34yvBxdKLgOts1hpRasRSB03eVM4OWJ1WfGjeOHURjBv6vB:yvXFOwOsRlqnNWfGtHOtyZ

Entry address:
0x30FA

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 60, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 18, EC, 42, 00, E8, F1, 2B, 00, 00, A3, 64, EB, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, 8F, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 60, E3, 42, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, 40, 43, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.9045

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

The file mm2kor.exe has been seen being distributed by the following URL.

http://blogattach.naver.net/da4fc67567373ee2cc2b497a47a4dca8065aae49a2/20130620_91_blogfile/.../mm2kor.exe

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