23415f8a5ed5e127154430fdfc450350876d64b19ec080cf678c461fd70a0dc8

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
12-02-2024 04:56

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General

Target

f4bcf167d804ea705f5fa098dc7c092c.exe
Size

126KB
MD5

f4bcf167d804ea705f5fa098dc7c092c
SHA1

50f4304341c74e954925d9637d1e747e4256b903
SHA256

23415f8a5ed5e127154430fdfc450350876d64b19ec080cf678c461fd70a0dc8
SHA512

020a795bdcc99f38853775387994fcd2461144a34d4a3d56a54818b6e36477d896bdaa3a7631474702ba2c5e2ba6e66a2fe9ac0b57dece7cc7d66d2e340a86a3
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgp699GNtL1eTM:AnBdOOtEvwDpj6z2

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-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	f4bcf167d804ea705f5fa098dc7c092c.exe

Executes dropped EXE 1 IoCs

pid	Process
4784	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2804-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/files/0x0007000000023221-13.dat	upx
behavioral2/memory/2804-17-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral2/memory/4784-26-0x0000000000500000-0x000000000050F000-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 2804 wrote to memory of 4784	2804	f4bcf167d804ea705f5fa098dc7c092c.exe	84
PID 2804 wrote to memory of 4784	2804	f4bcf167d804ea705f5fa098dc7c092c.exe	84
PID 2804 wrote to memory of 4784	2804	f4bcf167d804ea705f5fa098dc7c092c.exe	84

C:\Users\Admin\AppData\Local\Temp\f4bcf167d804ea705f5fa098dc7c092c.exe
"C:\Users\Admin\AppData\Local\Temp\f4bcf167d804ea705f5fa098dc7c092c.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2804
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4784

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
126KB

MD5
29882fdedbd0141bd28851f7cb2b9c8f

SHA1
eaf240a600fae2a6a3fe752d24e658a267c738a7

SHA256
e518389fbce8c910500f87c4d5a9ad25bf7949289af194e4bd4c7d5138c02d4a

SHA512
2322039409de34865e23ce17257661d4f30d7f53be8dd077aad29fed81ab4b54b62694bcce08fb3a3b42a695834db3bff43da92c191318c71f4f690b53cd3256

Download Submit
memory/2804-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2804-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/2804-2-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/2804-3-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/2804-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4784-19-0x0000000000750000-0x0000000000756000-memory.dmp

Filesize
24KB

Download
memory/4784-25-0x0000000000730000-0x0000000000736000-memory.dmp

Filesize
24KB

Download
memory/4784-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download