02d21889edadfacb950d8d99830afdcf5ca11e6553ae1669be22dcf97292d497

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
18/02/2024, 23:10

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General

Target

2024-02-18_c8d3b426e2020fa8a46fba6874ac2e8c_cryptolocker.exe
Size

58KB
MD5

c8d3b426e2020fa8a46fba6874ac2e8c
SHA1

6f891cd2382287da38144df21aefe3075235c04a
SHA256

02d21889edadfacb950d8d99830afdcf5ca11e6553ae1669be22dcf97292d497
SHA512

41d11b9e29ee97120529e037c166e1e2795763ccb7e8132ae1c845deeba4423d05b40adb204eda3337176ba69959e1e40c43646aac27b140c521f73a0cb51369
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjIm8lB4dCOBy/cMFqeoYPO+lxV:ZzFbxmLPWQMOtEvwDpj38lD/cMAT+lj

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002320d-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-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation	2024-02-18_c8d3b426e2020fa8a46fba6874ac2e8c_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4392	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 4652 wrote to memory of 4392	4652	2024-02-18_c8d3b426e2020fa8a46fba6874ac2e8c_cryptolocker.exe	84
PID 4652 wrote to memory of 4392	4652	2024-02-18_c8d3b426e2020fa8a46fba6874ac2e8c_cryptolocker.exe	84
PID 4652 wrote to memory of 4392	4652	2024-02-18_c8d3b426e2020fa8a46fba6874ac2e8c_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-18_c8d3b426e2020fa8a46fba6874ac2e8c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_c8d3b426e2020fa8a46fba6874ac2e8c_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4652
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:4392

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
58KB

MD5
8642076ff5adeb8153e52fb17b876c0e

SHA1
2fdd5a35600978e5094b6cca8f89669b0816ceae

SHA256
5b680bd64b656667574baea49307f0e2a33be99df603d2df9cdc130e765b8abf

SHA512
a2df11acaea8ad63ea9db4b6cfba421243b8c9c1f58f4011f01d3eb95068676c06d551bd0b50e94a1b4c6f4b40349656aa9bdb3c1b2222a3431ca8ee5a4f16da

Download Submit
memory/4392-16-0x0000000000450000-0x0000000000490000-memory.dmp

Filesize
256KB

Download
memory/4392-18-0x0000000000510000-0x0000000000516000-memory.dmp

Filesize
24KB

Download
memory/4392-24-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/4392-25-0x0000000000450000-0x0000000000490000-memory.dmp

Filesize
256KB

Download
memory/4652-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4652-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4652-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download