4184da850454c5a015f193af97b70bb3585e23e53f722d3b3ec8f15c35756e22

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
11/01/2024, 05:55

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General

Target

2024-01-10_bace5765d5aaa53084944496344be729_cryptolocker.exe
Size

41KB
MD5

bace5765d5aaa53084944496344be729
SHA1

5b5e1de69f71f87d38e349e388b07c1218498973
SHA256

4184da850454c5a015f193af97b70bb3585e23e53f722d3b3ec8f15c35756e22
SHA512

eff736b92123724ceab2f207332b67884604a2c889e3cc91d5d4afabc0466af0651cd2ac19c339ee63bd35fe2ef946c8efbc2162de6b379466462a7c9c039b2b
SSDEEP

768:b7o/2n1TCraU6GD1a4X0WcO+wMVm+slAMRqrwGc:bc/y2lkF0+Bjrdc

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-1-5-21-983843758-932321429-1636175382-1000\Control Panel\International\Geo\Nation	2024-01-10_bace5765d5aaa53084944496344be729_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4972	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 5116 wrote to memory of 4972	5116	2024-01-10_bace5765d5aaa53084944496344be729_cryptolocker.exe	93
PID 5116 wrote to memory of 4972	5116	2024-01-10_bace5765d5aaa53084944496344be729_cryptolocker.exe	93
PID 5116 wrote to memory of 4972	5116	2024-01-10_bace5765d5aaa53084944496344be729_cryptolocker.exe	93

C:\Users\Admin\AppData\Local\Temp\2024-01-10_bace5765d5aaa53084944496344be729_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-10_bace5765d5aaa53084944496344be729_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5116
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  PID:4972

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
42KB

MD5
1ae7fa931d79ae64a0f6573c50b76312

SHA1
790c218d05f27fe9dc8dc4f3d06d96eba7474fb3

SHA256
ca696e795154e7e0d74b2cf78ce5c05a6ff001593af1c23b525d2e820276129f

SHA512
071f591a566685dc05216c8a2c6b0ebebfa30eefaf3dbdb36b476622a5462ba9ea7cbdc518b2ce7d42f081eba8c9c405e6f2b5af44bcb1dd4d2ab69880d729d2

Download Submit
memory/4972-20-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download
memory/5116-0-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/5116-1-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/5116-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download