81e10af2c84b5723be791c293d4204f99e73d3090d6550245fd612a14bce2dcb

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
07/03/2024, 02:30

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General

Target

8a345f7f8bba72c8245d7fd2ebcfe081.exe
Size

106KB
MD5

8a345f7f8bba72c8245d7fd2ebcfe081
SHA1

a99acee5b43b03409bc916802d44a0d525112973
SHA256

81e10af2c84b5723be791c293d4204f99e73d3090d6550245fd612a14bce2dcb
SHA512

57f1d2fa39602e735d9467fe7e72b00b7cae376870ebba6cfe6a1d2ba8eaa4d2ad4ab0724988fc9ab0cc1b3c2a5e423a0f5560e29fffd31e1211a97fb1fdea81
SSDEEP

1536:P8mnK6QFElP6n+gymddpMOtEvwDpjIHsalRn5iF1j6GksC:1nK6a+qdOOtEvwDpjC

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-1-5-21-557049126-2506969350-2798870634-1000\Control Panel\International\Geo\Nation	8a345f7f8bba72c8245d7fd2ebcfe081.exe

Executes dropped EXE 1 IoCs

pid	Process
4016	asih.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/676-0-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral2/files/0x0008000000023210-13.dat	upx
behavioral2/memory/676-19-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral2/memory/4016-17-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral2/memory/4016-27-0x0000000000500000-0x000000000050F311-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 676 wrote to memory of 4016	676	8a345f7f8bba72c8245d7fd2ebcfe081.exe	91
PID 676 wrote to memory of 4016	676	8a345f7f8bba72c8245d7fd2ebcfe081.exe	91
PID 676 wrote to memory of 4016	676	8a345f7f8bba72c8245d7fd2ebcfe081.exe	91

C:\Users\Admin\AppData\Local\Temp\8a345f7f8bba72c8245d7fd2ebcfe081.exe
"C:\Users\Admin\AppData\Local\Temp\8a345f7f8bba72c8245d7fd2ebcfe081.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:676
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4016

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\asih.exe

Filesize
106KB

MD5
94702d2aace6d2c72d168460b7211f24

SHA1
381a8124a1889b66b9d6b3921c56c8db8305362a

SHA256
7f74187fe5fbea20d9bc1a9f14f4bb797d46479115a90e5a449d1730d9dc9a2e

SHA512
5e95a21b4c1e15319f2592133989b7beee5a63651ac2e7d421c4ec1b5b58e58c8fbbe80c08cac0917097d1efebdd9dabbfa09aa73e6619bcda98af5fb0b0dcc7

Download Submit
memory/676-0-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/676-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/676-2-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/676-3-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/676-19-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/4016-17-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/4016-22-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4016-20-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/4016-27-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download