a64d51e8d2a6902121287a27f5d6f438b822dd1658152e3ac60a1d8405397c2f

Analysis

max time kernel
90s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
12/02/2024, 20:11

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General

Target

2024-02-12_ab3c0e033b38a92c2e719b7ea8f5b07d_cryptolocker.exe
Size

59KB
MD5

ab3c0e033b38a92c2e719b7ea8f5b07d
SHA1

ae88063b83a5a3a3638c526d607a35539718287f
SHA256

a64d51e8d2a6902121287a27f5d6f438b822dd1658152e3ac60a1d8405397c2f
SHA512

9f7d0fcac53fc78399845fce357da21464d64f817fad125cdb1c35a231bd2b79172c649179f127caf9c0cf129f2a730d1c7b7dc47769f6ef53c67534f1a11365
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj38lD/cMAT+lBhq:ZVxkGOtEvwDpjx

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002322f-12.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 2 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-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	2024-02-12_ab3c0e033b38a92c2e719b7ea8f5b07d_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
828	misid.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 4560 wrote to memory of 828	4560	2024-02-12_ab3c0e033b38a92c2e719b7ea8f5b07d_cryptolocker.exe	83
PID 4560 wrote to memory of 828	4560	2024-02-12_ab3c0e033b38a92c2e719b7ea8f5b07d_cryptolocker.exe	83
PID 4560 wrote to memory of 828	4560	2024-02-12_ab3c0e033b38a92c2e719b7ea8f5b07d_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-02-12_ab3c0e033b38a92c2e719b7ea8f5b07d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_ab3c0e033b38a92c2e719b7ea8f5b07d_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4560
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:828

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\misid.exe

Filesize
59KB

MD5
eed632e07366561c91927c89dfb327a0

SHA1
06c89d7ec3fb04a2ea275ba03476d85cb2c8e225

SHA256
147eb2ade83a87737fcea3597c0f8889edd6e2a0425a3f6dc8c33650862ec53e

SHA512
5d9aae18190690d8f4622739b5ed0630c9ccc885f65f44488dbd0e4ff1a7db938f9c281ece3878ef2fa42a5127d4b45425a5fdf3bf54f3b20828fa79155f6462

Download Submit
memory/828-16-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/828-18-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/828-24-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/828-53-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/4560-0-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/4560-1-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/4560-2-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download