9fa7de2c118ba31e686e63892495e06549be54031aff646d973795a3ca20724a

Analysis

max time kernel
146s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
19/03/2024, 23:07

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General

Target

9fa7de2c118ba31e686e63892495e06549be54031aff646d973795a3ca20724a.exe
Size

67KB
MD5

b723a66577dc6afed82f270990127ed9
SHA1

fda1f846ae6428b084d53f1b01d7bd62ff7d1169
SHA256

9fa7de2c118ba31e686e63892495e06549be54031aff646d973795a3ca20724a
SHA512

7eb1a463b2a3a9593e9a0c3024f2c916e79c2138c7572ef3bda1796eb6a297025c43a2c516afc003cb2bf5375b51c300be3ca877ec1641abab44f907248b3ead
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKU8:DW60sllyWOtEvwDpjwF85+

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 3 IoCs

resource	yara_rule
behavioral2/memory/1344-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x0008000000023229-13.dat	CryptoLocker_rule2
behavioral2/memory/1344-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral2/memory/1344-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x0008000000023229-13.dat	CryptoLocker_set1
behavioral2/memory/1344-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

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-1-5-21-609813121-2907144057-1731107329-1000\Control Panel\International\Geo\Nation	9fa7de2c118ba31e686e63892495e06549be54031aff646d973795a3ca20724a.exe

Executes dropped EXE 1 IoCs

pid	Process
708	asih.exe

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 1344 wrote to memory of 708	1344	9fa7de2c118ba31e686e63892495e06549be54031aff646d973795a3ca20724a.exe	89
PID 1344 wrote to memory of 708	1344	9fa7de2c118ba31e686e63892495e06549be54031aff646d973795a3ca20724a.exe	89
PID 1344 wrote to memory of 708	1344	9fa7de2c118ba31e686e63892495e06549be54031aff646d973795a3ca20724a.exe	89

C:\Users\Admin\AppData\Local\Temp\9fa7de2c118ba31e686e63892495e06549be54031aff646d973795a3ca20724a.exe
"C:\Users\Admin\AppData\Local\Temp\9fa7de2c118ba31e686e63892495e06549be54031aff646d973795a3ca20724a.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1344
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:708

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
67KB

MD5
d85ada1e25152482f12725c665eb8129

SHA1
e0c01056f9dbefef3ea801504acadfaa486fc1f0

SHA256
fc34b6d831aaf2fe4e82eca511df8e849a82267b7cb6b443d20428fb55bbf896

SHA512
32b31d93dacc5a486dae554ee708f021aa25d9945035fd5a5d80329d444f052bca7f37917116bea8f2504c5b2398785a54c582240d61f57c7b2ad10711f5136c

Download Submit
memory/708-20-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/708-19-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/1344-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1344-1-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/1344-2-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/1344-3-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download
memory/1344-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download