b831e3ca222c9a6c80af3605c2563b736f29f619903d4088d254b7e1411fe005

Analysis

max time kernel
0s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
09/01/2024, 06:47

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General

Target

2024-01-08_c8fafe71d73546282a0162fac37c5a5d_cryptolocker.exe
Size

42KB
MD5

c8fafe71d73546282a0162fac37c5a5d
SHA1

e40fbc145041c20817e74137d326cdb2edd9468e
SHA256

b831e3ca222c9a6c80af3605c2563b736f29f619903d4088d254b7e1411fe005
SHA512

fce111f13d099a6944b1aed23ac228ed538fc3a1f8c8ea6f0d97c63a9b96793fec8708ae910f57cfbf80ddbeff423032377694162d39ee8783c1f27972f7aa78
SSDEEP

768:b7o/2n1TCraU6GD1a4Xcn62TUdcuQlqJ51mwuepE:bc/y2lm6Y0AqJ51mwuX

Score

7^/10

Malware Config

Signatures

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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	2024-01-08_c8fafe71d73546282a0162fac37c5a5d_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4536	rewok.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 4984 wrote to memory of 4536	4984	2024-01-08_c8fafe71d73546282a0162fac37c5a5d_cryptolocker.exe	21
PID 4984 wrote to memory of 4536	4984	2024-01-08_c8fafe71d73546282a0162fac37c5a5d_cryptolocker.exe	21
PID 4984 wrote to memory of 4536	4984	2024-01-08_c8fafe71d73546282a0162fac37c5a5d_cryptolocker.exe	21

C:\Users\Admin\AppData\Local\Temp\2024-01-08_c8fafe71d73546282a0162fac37c5a5d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-08_c8fafe71d73546282a0162fac37c5a5d_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4984
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  PID:4536

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\rewok.exe

Filesize
13KB

MD5
d6adbab99445c29c31bac6397020e990

SHA1
0e8cfdfc7687ccd0d8c74dd48967c21d409cfbfb

SHA256
99f33b5565fa3dd1016e29674e8100d484cc8904292a930be133df1b94d0b2e3

SHA512
0a020185fea59f30b59deb27db5702949e788e505512f4605efabd587690d16a935629e86ccab086318bc7dda7e0b0a002dff18970214910a04c0fb43368ad5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\rewok.exe

Filesize
42KB

MD5
fd015a25d844f54ca72e1e488488e324

SHA1
102ff1fc2a1182e16092c2c43d07f63b889ac22e

SHA256
41fb7e9746dd98257f574ba87c5ed7e92ce0696726a169dd01785437e3fdca0f

SHA512
e23f2ffd2e558e80279f2939297ba88ce9bd3e3abc10ae1b0cc5a6a9443e324be4cbf1ab91fb5775279954a33c6af4e0605b40d801746b7ed3080210790c2309

Download Submit
memory/4536-25-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/4984-0-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download
memory/4984-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4984-1-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download