20ea06c6c0a207ec13572be41ba68d8bf3924ee563f0f0228409f10efd6fd7a3

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
26/05/2024, 01:35

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General

Target

2024-05-26_7feec055124e7ed5b06038a8c2cb9d48_cryptolocker.exe
Size

54KB
MD5

7feec055124e7ed5b06038a8c2cb9d48
SHA1

03ecd1222cfa56fbc08821ffbe565cdc0922396b
SHA256

20ea06c6c0a207ec13572be41ba68d8bf3924ee563f0f0228409f10efd6fd7a3
SHA512

3cf5ccf65aadd0ca88aa92dad44fa20d0638ad745f33ba487618664ca7eca696ba2f17f8815a2ac64e4d8672aa719ae97ccfa20a5653064c132e000a8f6d2674
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjeJQ7pojaklPsn:V6a+pOtEvwDpjj

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023305-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023305-12.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-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	2024-05-26_7feec055124e7ed5b06038a8c2cb9d48_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3176	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 4556 wrote to memory of 3176	4556	2024-05-26_7feec055124e7ed5b06038a8c2cb9d48_cryptolocker.exe	85
PID 4556 wrote to memory of 3176	4556	2024-05-26_7feec055124e7ed5b06038a8c2cb9d48_cryptolocker.exe	85
PID 4556 wrote to memory of 3176	4556	2024-05-26_7feec055124e7ed5b06038a8c2cb9d48_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-05-26_7feec055124e7ed5b06038a8c2cb9d48_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-26_7feec055124e7ed5b06038a8c2cb9d48_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4556
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3176

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
54KB

MD5
ddd9100d8066bed995df1f437293ed57

SHA1
2a34062cf4b64fdac39937760c3ecdcaafffa0fb

SHA256
f2ad851435dd57740edcd98da7b53cca916914e5a60f5b10fee56f03dd14a83a

SHA512
1a785c56bfaa7c0c4da6e66420d1457d386664cdd6f9b0e84e9634363f6ff4538595443ad6eade4a8f109b3dc3c20931e7aee7452548bf742fa6d9d46a7d87c5

Download Submit
memory/3176-23-0x0000000002140000-0x0000000002146000-memory.dmp

Filesize
24KB

Download
memory/3176-17-0x0000000002040000-0x0000000002046000-memory.dmp

Filesize
24KB

Download
memory/4556-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4556-1-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4556-8-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download