ef2229a6d82c9d91d1b92a5a91c5a0fc5a9e1ea89cc6ceb3d6c28657a7503579

Analysis

max time kernel
149s
max time network
50s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
01/07/2024, 04:24

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General

Target

ef2229a6d82c9d91d1b92a5a91c5a0fc5a9e1ea89cc6ceb3d6c28657a7503579.exe
Size

24KB
MD5

54f95fe164b62f4f46f8548c557f4005
SHA1

f3a1ed8d1562a73943249eabf1a61912cb7db577
SHA256

ef2229a6d82c9d91d1b92a5a91c5a0fc5a9e1ea89cc6ceb3d6c28657a7503579
SHA512

b85fac0c32884cbb025d14b071ab9fd1f92723da47504554e0cfcd0273306ff6ff04478212dfd71bb3c18c1945d6dea3b3de084f9ade5cc3b0d597664fcd7c3a
SSDEEP

384:UATttSPw84JRFnYJz7sto9KJzq98kENZ7wCMoYUgY:BEw84DJ3om298ECMoBgY

Score

9^/10

upx

Malware Config

Signatures

UPX dump on OEP (original entry point) 5 IoCs

resource	yara_rule
behavioral2/memory/3272-0-0x0000000000400000-0x000000000040D000-memory.dmp	UPX
behavioral2/files/0x0008000000023423-7.dat	UPX
behavioral2/memory/3272-14-0x0000000000400000-0x000000000040D000-memory.dmp	UPX
behavioral2/memory/1148-15-0x0000000000400000-0x000000000040D000-memory.dmp	UPX
behavioral2/memory/1148-16-0x0000000000400000-0x000000000040D000-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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	ef2229a6d82c9d91d1b92a5a91c5a0fc5a9e1ea89cc6ceb3d6c28657a7503579.exe

Executes dropped EXE 1 IoCs

pid	Process
1148	zmnzx.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3272-0-0x0000000000400000-0x000000000040D000-memory.dmp	upx
behavioral2/files/0x0008000000023423-7.dat	upx
behavioral2/memory/3272-14-0x0000000000400000-0x000000000040D000-memory.dmp	upx
behavioral2/memory/1148-15-0x0000000000400000-0x000000000040D000-memory.dmp	upx
behavioral2/memory/1148-16-0x0000000000400000-0x000000000040D000-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 3272 wrote to memory of 1148	3272	ef2229a6d82c9d91d1b92a5a91c5a0fc5a9e1ea89cc6ceb3d6c28657a7503579.exe	81
PID 3272 wrote to memory of 1148	3272	ef2229a6d82c9d91d1b92a5a91c5a0fc5a9e1ea89cc6ceb3d6c28657a7503579.exe	81
PID 3272 wrote to memory of 1148	3272	ef2229a6d82c9d91d1b92a5a91c5a0fc5a9e1ea89cc6ceb3d6c28657a7503579.exe	81

C:\Users\Admin\AppData\Local\Temp\ef2229a6d82c9d91d1b92a5a91c5a0fc5a9e1ea89cc6ceb3d6c28657a7503579.exe
"C:\Users\Admin\AppData\Local\Temp\ef2229a6d82c9d91d1b92a5a91c5a0fc5a9e1ea89cc6ceb3d6c28657a7503579.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3272
- C:\Users\Admin\AppData\Local\Temp\zmnzx.exe
  "C:\Users\Admin\AppData\Local\Temp\zmnzx.exe"
  2⤵
  - Executes dropped EXE
  PID:1148

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

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Downloads

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

Filesize
24KB

MD5
1f841943416931ada85c5635f1371fd2

SHA1
b086a5aca315aa151a4e8a422a118fc501f7981a

SHA256
8cc7a690fce7363feb6de51234b4b455920cce40ca4d0bba3cc226f4bf013cde

SHA512
a70ca7668638b90199df332a6023bb73470628366604499236bbebe639bb8d8c3a32857ee83399cdcbde46f31d05445def10b7e9ea9304a2bc10a2a3830f8254

Download Submit
memory/1148-15-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/1148-16-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/3272-0-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download
memory/3272-2-0x0000000000402000-0x0000000000403000-memory.dmp

Filesize
4KB

Download
memory/3272-14-0x0000000000400000-0x000000000040D000-memory.dmp

Filesize
52KB

Download