139bd6c81f4b44793336d0af39e922b9eb9606d8c3c1f9280c121cc8aa6b6869

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
17/05/2024, 18:50

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

139bd6c81f4b44793336d0af39e922b9eb9606d8c3c1f9280c121cc8aa6b6869.exe
Size

24KB
MD5

204df103332ed2d0268bb0010b4b271b
SHA1

9dd397fb99be19059f10aee9b6d163273c3056a8
SHA256

139bd6c81f4b44793336d0af39e922b9eb9606d8c3c1f9280c121cc8aa6b6869
SHA512

a56b90089e53f4d4264a209ef08e346e0d5bdcf1b3469c308e5be1e31bc8775415ef1a5758fc9f05a8c8e4c7d0e2f9c8baa1ddc98184c1936ce10bc97793008e
SSDEEP

384:6gvlQoGKdivmICib0666666666RJ70uIabjbt3TUAKoYQW9EsHyLGLc:x2oGKdJ5i0uIaOUYP2Cc

Score

9^/10

upx

Malware Config

Signatures

UPX dump on OEP (original entry point) 5 IoCs

resource	yara_rule
behavioral2/memory/1460-0-0x0000000000500000-0x000000000050D000-memory.dmp	UPX
behavioral2/files/0x0006000000023276-6.dat	UPX
behavioral2/memory/1460-11-0x0000000000500000-0x000000000050D000-memory.dmp	UPX
behavioral2/memory/1256-12-0x0000000000500000-0x000000000050D000-memory.dmp	UPX
behavioral2/memory/1256-13-0x0000000000500000-0x000000000050D000-memory.dmp	UPX

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation	139bd6c81f4b44793336d0af39e922b9eb9606d8c3c1f9280c121cc8aa6b6869.exe

Executes dropped EXE 1 IoCs

pid	Process
1256	codecupdate.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/1460-0-0x0000000000500000-0x000000000050D000-memory.dmp	upx
behavioral2/files/0x0006000000023276-6.dat	upx
behavioral2/memory/1460-11-0x0000000000500000-0x000000000050D000-memory.dmp	upx
behavioral2/memory/1256-12-0x0000000000500000-0x000000000050D000-memory.dmp	upx
behavioral2/memory/1256-13-0x0000000000500000-0x000000000050D000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1460 wrote to memory of 1256	1460	139bd6c81f4b44793336d0af39e922b9eb9606d8c3c1f9280c121cc8aa6b6869.exe	82
PID 1460 wrote to memory of 1256	1460	139bd6c81f4b44793336d0af39e922b9eb9606d8c3c1f9280c121cc8aa6b6869.exe	82
PID 1460 wrote to memory of 1256	1460	139bd6c81f4b44793336d0af39e922b9eb9606d8c3c1f9280c121cc8aa6b6869.exe	82

C:\Users\Admin\AppData\Local\Temp\139bd6c81f4b44793336d0af39e922b9eb9606d8c3c1f9280c121cc8aa6b6869.exe
"C:\Users\Admin\AppData\Local\Temp\139bd6c81f4b44793336d0af39e922b9eb9606d8c3c1f9280c121cc8aa6b6869.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1460
- C:\Users\Admin\AppData\Local\Temp\codecupdate.exe
  "C:\Users\Admin\AppData\Local\Temp\codecupdate.exe"
  2⤵
  - Executes dropped EXE
  PID:1256

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\codecupdate.exe

Filesize
24KB

MD5
c2b3fd6f0ab2cd775e19d744de9392c7

SHA1
6346dec96eaff3c73655389094f3b21b9b500dfe

SHA256
b1df916208cd96a0afc0f3cf209667ac818d6cd84080a532b728594a2a34761c

SHA512
c9e62e8a24c75e22154574afc866faa222be50aa09109cf5d6ffb89906e9812193846df1335bc674176327ac023a892389268ddd991eba4403b322a241d8539d

Download Submit
memory/1256-12-0x0000000000500000-0x000000000050D000-memory.dmp

Filesize
52KB

Download
memory/1256-13-0x0000000000500000-0x000000000050D000-memory.dmp

Filesize
52KB

Download
memory/1460-0-0x0000000000500000-0x000000000050D000-memory.dmp

Filesize
52KB

Download
memory/1460-2-0x0000000000501000-0x0000000000502000-memory.dmp

Filesize
4KB

Download
memory/1460-11-0x0000000000500000-0x000000000050D000-memory.dmp

Filesize
52KB

Download