c13bcb9e10c5cd2a889f03a51ead2ca11cc76253e565602e30220335f5201d69

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
06-03-2024 13:12

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General

Target

b77b5bf55d7f2883535b416c6c09d8a2.exe
Size

21KB
MD5

b77b5bf55d7f2883535b416c6c09d8a2
SHA1

14622061c1606ef6fcfe454e368dbea9bede1a90
SHA256

c13bcb9e10c5cd2a889f03a51ead2ca11cc76253e565602e30220335f5201d69
SHA512

0b4a21987e3ccef2f9aaf560bd77f33c9a1dce32f1ccc1d4fd1179eea4561a2dae1d88c8b6ec32999cbe5abab3c9167ee463992ad813f3a6b9b4966ad0fab6fd
SSDEEP

384:XGB8vObTLtDC0OMQKJQSUPp+XLPfYHJg3kskbfqowkPg8PAIcoZ2hTh:w8oLxNMdSM+XLOg3Rk2oYeAIcbr

Score

7^/10

upx

Malware Config

Signatures

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-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation	b77b5bf55d7f2883535b416c6c09d8a2.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4312-0-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral2/memory/4312-3-0x0000000000400000-0x000000000040F000-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 4312 wrote to memory of 2744	4312	b77b5bf55d7f2883535b416c6c09d8a2.exe	92
PID 4312 wrote to memory of 2744	4312	b77b5bf55d7f2883535b416c6c09d8a2.exe	92
PID 4312 wrote to memory of 2744	4312	b77b5bf55d7f2883535b416c6c09d8a2.exe	92

C:\Users\Admin\AppData\Local\Temp\b77b5bf55d7f2883535b416c6c09d8a2.exe
"C:\Users\Admin\AppData\Local\Temp\b77b5bf55d7f2883535b416c6c09d8a2.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4312
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /q /c "C:\Users\Admin\AppData\Local\Temp\a..bat" > nul 2> nul
  2⤵
  PID:2744

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\a..bat

Filesize
210B

MD5
52f7d806fb38ae92255e3b7fdea991de

SHA1
203078a7881f80e45a38429f09b3b214d87839e7

SHA256
dec124cecb2e70fdaf45c8ee57f57d297af3e303bdac8871a147b1482d45eb23

SHA512
63112c95f933705c5a83f4ec75e7cef4a5c4a6760fb341103038108c345f7f4f9f83ffed7df76551014d4a70552f17f0a83c17fc7a4c853dd6f58d68191265e7

Download Submit
memory/4312-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4312-1-0x0000000002020000-0x0000000002021000-memory.dmp

Filesize
4KB

Download
memory/4312-3-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download