5e6de903756fec3d12290b0dcd9c50615739924b66ab4edeaf2a2cb5c4aa4e6b

Analysis

max time kernel
156s
max time network
160s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
15/03/2024, 17:52

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General

Target

2024-03-15_ed92b8c8fe7bb08326e5286a3eabf2af_cryptolocker.exe
Size

44KB
MD5

ed92b8c8fe7bb08326e5286a3eabf2af
SHA1

cbe2107abcde96f18a8e583fbdc0c4981e065024
SHA256

5e6de903756fec3d12290b0dcd9c50615739924b66ab4edeaf2a2cb5c4aa4e6b
SHA512

3a40624e9f6715fd4758e4ff4478689f74b385d3ba433f2c3e8420ea303068174b68b9028aba720d308898cabeb3c332e186fbb5cdfee6a330ba954521de045e
SSDEEP

768:btB9g/WItCSsAGjX7r3BPOMHoc/QQJP5B:btB9g/xtCSKfxLIc/p

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023240-12.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-1-5-21-557049126-2506969350-2798870634-1000\Control Panel\International\Geo\Nation	2024-03-15_ed92b8c8fe7bb08326e5286a3eabf2af_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-557049126-2506969350-2798870634-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
3060	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 4216 wrote to memory of 3060	4216	2024-03-15_ed92b8c8fe7bb08326e5286a3eabf2af_cryptolocker.exe	90
PID 4216 wrote to memory of 3060	4216	2024-03-15_ed92b8c8fe7bb08326e5286a3eabf2af_cryptolocker.exe	90
PID 4216 wrote to memory of 3060	4216	2024-03-15_ed92b8c8fe7bb08326e5286a3eabf2af_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-03-15_ed92b8c8fe7bb08326e5286a3eabf2af_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-15_ed92b8c8fe7bb08326e5286a3eabf2af_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4216
- 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:3060

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
44KB

MD5
d250400d83395b0be8ffdd3434498332

SHA1
cdda397e1e18c09e847c7eb6c7b390ca5ec4ef01

SHA256
e3e3bceb9793383439a0fb32ec6a4292e5fb0784c5867186f8a9b129f0957739

SHA512
1ae76a234d64851a8d7a94caad0a8b0db2108d78d4166f2b5dbe604939776578f3d8db67ab0f886a26a9f5b40cee42a461a603cd1efd539b2e5e79e5d5a9f758

Download Submit
memory/4216-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4216-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4216-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download