484e83f530efec922e8fd9dbe2a9db04d3a77f16c59c3ff6efb18be2592fd6ed

Analysis

max time kernel
147s
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
29/02/2024, 08:38

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General

Target

2024-02-29_63abe637105cb8dfdae7f0487951eef4_cryptolocker.exe
Size

66KB
MD5

63abe637105cb8dfdae7f0487951eef4
SHA1

2eed46a0acddc8e2358ae3594da94971c1081dee
SHA256

484e83f530efec922e8fd9dbe2a9db04d3a77f16c59c3ff6efb18be2592fd6ed
SHA512

5c1b7ee36566df7ab81be5ce2489f07ec66f07931c2344972430adb2832780aa11fd1043741a82ae95819f2d55d64076662c371deaa4b085a251ac0a733790de
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3hvLcbVI:ZVxkGOtEvwDpjcawO

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023209-13.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-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation	2024-02-29_63abe637105cb8dfdae7f0487951eef4_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
216	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 888 wrote to memory of 216	888	2024-02-29_63abe637105cb8dfdae7f0487951eef4_cryptolocker.exe	88
PID 888 wrote to memory of 216	888	2024-02-29_63abe637105cb8dfdae7f0487951eef4_cryptolocker.exe	88
PID 888 wrote to memory of 216	888	2024-02-29_63abe637105cb8dfdae7f0487951eef4_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-02-29_63abe637105cb8dfdae7f0487951eef4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-29_63abe637105cb8dfdae7f0487951eef4_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:888
- 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:216

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
66KB

MD5
d8466b427775a2ccb6308ae0909a3e5f

SHA1
6c9f7e764ba44aacad0762cceaa71b7e1f5c9c8b

SHA256
3117db955db84c82dff524f88601f45eaea8a8097c25ebbb08140c6f34c438fd

SHA512
466eb546898e4e95e41161689877995f71677ffe9180bc6b5ed50c2fd3d022d35086a382fa5ba97a4971e96c525b4b0e380dc910530fbafcbc30522827eaf4ab

Download Submit
memory/216-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/216-20-0x0000000000860000-0x0000000000866000-memory.dmp

Filesize
24KB

Download
memory/216-22-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/888-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/888-1-0x0000000002320000-0x0000000002326000-memory.dmp

Filesize
24KB

Download
memory/888-2-0x0000000002320000-0x0000000002326000-memory.dmp

Filesize
24KB

Download
memory/888-3-0x00000000021C0000-0x00000000021C6000-memory.dmp

Filesize
24KB

Download
memory/888-18-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download