34ba5e5e982aa28697671adf6547e66c02f45bba3f8cee25f238017798569aa8

Analysis

max time kernel
143s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
13/02/2024, 18:39

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General

Target

2024-02-13_78b1753e71fd0ab0592029e8f987ad28_cryptolocker.exe
Size

36KB
MD5

78b1753e71fd0ab0592029e8f987ad28
SHA1

0889ee8c211f63bb2687ef3fe702d503717aa544
SHA256

34ba5e5e982aa28697671adf6547e66c02f45bba3f8cee25f238017798569aa8
SHA512

7423a57a5b29eeb476a4509f8d9b392f6aa7398c3c3c03ba84426d8dfa46dbcb2f232608ff562a43412aca97057e5cc418565b4e7f583c3e19e6ef94546e5159
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunRCs2:btB9g/WItCSsAGjX7e9N0hunRCZ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023219-12.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-1-5-21-996941297-2279405024-2328152752-1000\Control Panel\International\Geo\Nation	2024-02-13_78b1753e71fd0ab0592029e8f987ad28_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
4328	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 3260 wrote to memory of 4328	3260	2024-02-13_78b1753e71fd0ab0592029e8f987ad28_cryptolocker.exe	84
PID 3260 wrote to memory of 4328	3260	2024-02-13_78b1753e71fd0ab0592029e8f987ad28_cryptolocker.exe	84
PID 3260 wrote to memory of 4328	3260	2024-02-13_78b1753e71fd0ab0592029e8f987ad28_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-13_78b1753e71fd0ab0592029e8f987ad28_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-13_78b1753e71fd0ab0592029e8f987ad28_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3260
- 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:4328

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
36KB

MD5
f7e0183f971f451e6ecb5d42553f36f9

SHA1
2c60dd122c824daf5e6f77de2fb14473ab71b304

SHA256
5d2bf1a061cf58b9069ba358fa5ee419f9adadcc6a7624ca0ff16823eb63e6a6

SHA512
a4fe4933f174319487282c097bbea3063937ee7f0d4bd36d1b5ef5328646be23d22d91f1df1105e849177225f5470658c48b5564fb160389a8306680a86cf04c

Download Submit
memory/3260-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3260-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3260-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4328-21-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download