9ca76b46abe94e166bd4858995527a9b21057eaecee713380f87ca3ae620eff1

Analysis

max time kernel
148s
max time network
164s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
26/01/2024, 22:24

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General

Target

2024-01-26_7fade7e327ad827038e63f639356b6ae_cryptolocker.exe
Size

34KB
MD5

7fade7e327ad827038e63f639356b6ae
SHA1

e550f37770169d9b47bbeec475caa82ddcdca934
SHA256

9ca76b46abe94e166bd4858995527a9b21057eaecee713380f87ca3ae620eff1
SHA512

f757daef9fedb0019f5fd3c5b6ada90ce5423dfded39d23144303a5da7562a99f2605a44b303b06ad1ec1531e4194acba3855493f84e997333ca2188ced00920
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4l8tFFxE2B0qDQOYQ1A:btB9g/WItCSsAGjX7r3BTDPYl

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00070000000231e8-12.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-1-5-21-635608581-3370340891-292606865-1000\Control Panel\International\Geo\Nation	2024-01-26_7fade7e327ad827038e63f639356b6ae_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
4424	gewos.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 2896 wrote to memory of 4424	2896	2024-01-26_7fade7e327ad827038e63f639356b6ae_cryptolocker.exe	88
PID 2896 wrote to memory of 4424	2896	2024-01-26_7fade7e327ad827038e63f639356b6ae_cryptolocker.exe	88
PID 2896 wrote to memory of 4424	2896	2024-01-26_7fade7e327ad827038e63f639356b6ae_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-01-26_7fade7e327ad827038e63f639356b6ae_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-26_7fade7e327ad827038e63f639356b6ae_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2896
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:4424

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\gewos.exe

Filesize
35KB

MD5
8e40b8b247a6a75fd682fc9aab6b1ef5

SHA1
dad0ea6d13f49a384aa18b7d6471aa18696d2644

SHA256
2a9f25f5864b8640c333a8c32ad4583e81a7702accb87efe42ae3f3d800766ff

SHA512
7c45a6fea88ce5a880f597610ae195d62d459f67d97a28b3ac09b464b0fb04256d4e4646bc7686b71fea89e59031e2c3a29faa0c6270be0693561160fa5f0f27

Download Submit
memory/2896-0-0x0000000002160000-0x0000000002166000-memory.dmp

Filesize
24KB

Download
memory/2896-1-0x0000000002160000-0x0000000002166000-memory.dmp

Filesize
24KB

Download
memory/2896-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4424-25-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download