9e5d5e37e3521e566b8a375991dc660910252d354a7d6d586a29e71494b0e67b

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
11-03-2024 19:00

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General

Target

2024-03-11_b51620a8ca785f1707721ffed485be45_cryptolocker.exe
Size

47KB
MD5

b51620a8ca785f1707721ffed485be45
SHA1

ea46a551b8f1a88b053b4b68c7f5f81e15b108e9
SHA256

9e5d5e37e3521e566b8a375991dc660910252d354a7d6d586a29e71494b0e67b
SHA512

2e62dff353353696d33bc71eef7f53bc64e48679ff89ba537c0f02fe21edb4cfbe77436e1054aa09d72bd694ef3ed90db5532f9acf6fe0e3ed85e7906d117555
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37YbDu5z/hvvkS:bgGYcA/53GAA6y37nbf

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000400000001e980-12.dat	CryptoLocker_rule2

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-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation	2024-03-11_b51620a8ca785f1707721ffed485be45_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1132	hasfj.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 368 wrote to memory of 1132	368	2024-03-11_b51620a8ca785f1707721ffed485be45_cryptolocker.exe	89
PID 368 wrote to memory of 1132	368	2024-03-11_b51620a8ca785f1707721ffed485be45_cryptolocker.exe	89
PID 368 wrote to memory of 1132	368	2024-03-11_b51620a8ca785f1707721ffed485be45_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-03-11_b51620a8ca785f1707721ffed485be45_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-11_b51620a8ca785f1707721ffed485be45_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:368
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1132

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\hasfj.exe

Filesize
47KB

MD5
2bbea3306748b09e69e757626c0522aa

SHA1
0989adb7c1af276a51853c968b87d4689b00085a

SHA256
5c325335dd9e8b84a0d01b97ff5935293fd8e6f4d6d93e384c8480ebf7c69cc9

SHA512
1d864e11783fc37eb3af6c5f587f577f0ee11337b804c6215e012109613beee48074ad952d6cd463a5744a00d2d3b3f53b1eb92dfbbada0590036c7b69abe5e5

Download Submit
memory/368-0-0x0000000002240000-0x0000000002246000-memory.dmp

Filesize
24KB

Download
memory/368-1-0x0000000002240000-0x0000000002246000-memory.dmp

Filesize
24KB

Download
memory/368-2-0x0000000002280000-0x0000000002286000-memory.dmp

Filesize
24KB

Download
memory/1132-17-0x0000000002380000-0x0000000002386000-memory.dmp

Filesize
24KB

Download
memory/1132-20-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download