cc1f0e6ef85f881b9f5056e87054e8467cecd73247e9bba478368de3ce1e58e8

Analysis

max time kernel
150s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
08/03/2024, 02:47

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General

Target

2024-03-08_78456c16b70af612ff510e8990560088_cryptolocker.exe
Size

99KB
MD5

78456c16b70af612ff510e8990560088
SHA1

223b37bd469de1fefd4a5c3fd59b0e11c9ff8acc
SHA256

cc1f0e6ef85f881b9f5056e87054e8467cecd73247e9bba478368de3ce1e58e8
SHA512

ad9837cf01849af3c20938b6fd535feff49a1450d5f597c1f0eccc92fccf968a0b376f00158c1592d7a70fa8b1b122c2cc9cc3d9151b6c3a4cf1b2887bc70f51
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwNgpQbCJjG:V6a+pOtEvwDpjtzp

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000022745-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000022745-12.dat	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-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation	2024-03-08_78456c16b70af612ff510e8990560088_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3240	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 816 wrote to memory of 3240	816	2024-03-08_78456c16b70af612ff510e8990560088_cryptolocker.exe	89
PID 816 wrote to memory of 3240	816	2024-03-08_78456c16b70af612ff510e8990560088_cryptolocker.exe	89
PID 816 wrote to memory of 3240	816	2024-03-08_78456c16b70af612ff510e8990560088_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-03-08_78456c16b70af612ff510e8990560088_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-08_78456c16b70af612ff510e8990560088_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:816
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3240

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
99KB

MD5
a796d86d5358b5912f1998932d30db90

SHA1
7f5d20fd192a62f77b28379dddde25b4034dbf2a

SHA256
604c89be8cc1da4dc67932996346f2e482b2d99b07d5fa94595f39b2808b6979

SHA512
39c58104c125446da8a6c2263eb9ea001f6133c4d4a5cf85a0b0f69c2f1fcdcdf21dc8c254ebefeee1987eb2b88761b71040b3c232ade773a3625893353bb8fc

Download Submit
memory/816-0-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/816-1-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/816-2-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download
memory/3240-17-0x0000000001FF0000-0x0000000001FF6000-memory.dmp

Filesize
24KB

Download
memory/3240-21-0x0000000001FD0000-0x0000000001FD6000-memory.dmp

Filesize
24KB

Download