313dffb7e793899e029533935c77608dfbfab757669ff58e39678d778dcf0cc5

Analysis

max time kernel
137s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
20-02-2024 03:32

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General

Target

b94d6a9b1c4bf606211cfd4fc0008d64.exe
Size

63KB
MD5

b94d6a9b1c4bf606211cfd4fc0008d64
SHA1

ef798abb52fdadc10b2a5c18f027251c13f73b5c
SHA256

313dffb7e793899e029533935c77608dfbfab757669ff58e39678d778dcf0cc5
SHA512

9966f762698fc78cdc692f6cb04226959b0c672ced4058eab1d3bc51c6a805e1134ff485501cdbc0e430efecc26145b0da9d252474ddbb703df4b9bc10c9aa79
SSDEEP

1536:P8mnK6QFElP6n+gymddpMOtEvwDpjYibAo6O:1nK6a+qdOOtEvwDpjN

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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	b94d6a9b1c4bf606211cfd4fc0008d64.exe

Executes dropped EXE 1 IoCs

pid	Process
2404	asih.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4248-0-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral2/files/0x0006000000023125-13.dat	upx
behavioral2/memory/4248-19-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral2/memory/2404-26-0x0000000000500000-0x000000000050F311-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 4248 wrote to memory of 2404	4248	b94d6a9b1c4bf606211cfd4fc0008d64.exe	84
PID 4248 wrote to memory of 2404	4248	b94d6a9b1c4bf606211cfd4fc0008d64.exe	84
PID 4248 wrote to memory of 2404	4248	b94d6a9b1c4bf606211cfd4fc0008d64.exe	84

C:\Users\Admin\AppData\Local\Temp\b94d6a9b1c4bf606211cfd4fc0008d64.exe
"C:\Users\Admin\AppData\Local\Temp\b94d6a9b1c4bf606211cfd4fc0008d64.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4248
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2404

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
63KB

MD5
1387dcb8c024bd272663230d289606c8

SHA1
e1bef57a60eeaaf86c16b5307dcd6bef6d6fcb64

SHA256
84a25138e7c14ca0be5250a5d02dd1de8ab310eaf7f32af00330b58ffc0471b9

SHA512
005193b9f436cae5f143138b57a4a0c571400c6c0784d815403bdd6465387ebd0b9ad95254e67de1cbd439bb2c62727ee0cc06fcab598e6a1946b64f9a1f7b1e

Download Submit
memory/2404-18-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/2404-20-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/2404-26-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/4248-0-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/4248-1-0x0000000000830000-0x0000000000836000-memory.dmp

Filesize
24KB

Download
memory/4248-2-0x0000000000830000-0x0000000000836000-memory.dmp

Filesize
24KB

Download
memory/4248-3-0x0000000000850000-0x0000000000856000-memory.dmp

Filesize
24KB

Download
memory/4248-19-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download