7410f3de78da375ebcebdeafc10b4f2dace058c50a12cd4e8f4b389aa38ada34

Analysis

max time kernel
139s
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
19/02/2024, 16:40

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General

Target

2024-02-19_86d7a96fd43893914a620d10975165f1_cryptolocker.exe
Size

60KB
MD5

86d7a96fd43893914a620d10975165f1
SHA1

03d7f430f71c9a0d037ea8b676c97f165232f7cb
SHA256

7410f3de78da375ebcebdeafc10b4f2dace058c50a12cd4e8f4b389aa38ada34
SHA512

bb006510f8d9afdd8b3798e066c78af22a3c9ace737437eb21b9f0245f1b559db200cb90ef2051159751ea2d1eb7e9a27dc06154d27c0b71018757bd4061b7da
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHO4:btng54SMLr+/AO/kIhfoKMHdG

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002313b-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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	2024-02-19_86d7a96fd43893914a620d10975165f1_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
4744	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 4688 wrote to memory of 4744	4688	2024-02-19_86d7a96fd43893914a620d10975165f1_cryptolocker.exe	84
PID 4688 wrote to memory of 4744	4688	2024-02-19_86d7a96fd43893914a620d10975165f1_cryptolocker.exe	84
PID 4688 wrote to memory of 4744	4688	2024-02-19_86d7a96fd43893914a620d10975165f1_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-19_86d7a96fd43893914a620d10975165f1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-19_86d7a96fd43893914a620d10975165f1_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4688
- 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:4744

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
60KB

MD5
fd2a2faecb0660801a372077b99f2a97

SHA1
08a55302f78ca76e21bafcfa9be7ed1ae2932dab

SHA256
1b6627972d5c6c874d4d8721d6ab982e4a0eeeacceb95890c0839d1f8453f2d7

SHA512
68e9dd939b70c8938f2d8ba10824b27643b068dc3c4654c8c8b3d0dce99279441f2599eaa9388ccf06a657553a8a5460e8d54df2ba792a12f408eec50abc9f40

Download Submit
memory/4688-0-0x0000000000630000-0x0000000000636000-memory.dmp

Filesize
24KB

Download
memory/4688-1-0x0000000000630000-0x0000000000636000-memory.dmp

Filesize
24KB

Download
memory/4688-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4744-21-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download