4a6212b51a4ab1c94ec02c8608b58418023b8c471fa2c7a4ceff37e54f0d4582

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
19/02/2024, 08:15

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General

Target

2024-02-19_e5d4139f37d0883213c407577dc7093f_cryptolocker.exe
Size

43KB
MD5

e5d4139f37d0883213c407577dc7093f
SHA1

c124a7c98de9b06dd7a02ae6f05a6e693c65985e
SHA256

4a6212b51a4ab1c94ec02c8608b58418023b8c471fa2c7a4ceff37e54f0d4582
SHA512

c8d7154d37edc3eea8bcc064e552d750945ff6fc27d12ffaa23585a12aa019ced819080d07087dd5cd462c314b013150ebc9b49308b25e453643b1204a442133
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4REL+cc66nkpbB:vj+jsMQMOtEvwDpj5HW5Ii1

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023203-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023203-12.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-1-5-21-2398549320-3657759451-817663969-1000\Control Panel\International\Geo\Nation	2024-02-19_e5d4139f37d0883213c407577dc7093f_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2720	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 5056 wrote to memory of 2720	5056	2024-02-19_e5d4139f37d0883213c407577dc7093f_cryptolocker.exe	84
PID 5056 wrote to memory of 2720	5056	2024-02-19_e5d4139f37d0883213c407577dc7093f_cryptolocker.exe	84
PID 5056 wrote to memory of 2720	5056	2024-02-19_e5d4139f37d0883213c407577dc7093f_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-19_e5d4139f37d0883213c407577dc7093f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-19_e5d4139f37d0883213c407577dc7093f_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5056
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2720

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
44KB

MD5
513e22b1a500b898254e39faf6e8dd28

SHA1
549366fbde45ec3e79cdb72c1e09bd72894d0039

SHA256
5a59d50fe6dfa46ed7e2f92a8927a5173d890d8370df47e19f7475616ffee729

SHA512
0050ac2e62a76dde3fa72f3cc70f5b498ad82a9b57cabf909c5f18d9078e6bc2cd54e2c317b2f1ec993e6738d85b55650939a4c083cdf5ffef39c31b75056686

Download Submit
memory/2720-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2720-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/5056-0-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/5056-1-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/5056-2-0x0000000002230000-0x0000000002236000-memory.dmp

Filesize
24KB

Download