b7ed042b489b334c9c3ce36cb09ac0ac53a6cebcc76ecdc456a74502a29c2349

Analysis

max time kernel
93s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
01/05/2024, 11:34

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General

Target

2024-05-01_7bebc6a62fe229858d41193918b61653_cryptolocker.exe
Size

61KB
MD5

7bebc6a62fe229858d41193918b61653
SHA1

a0ae2105d48fc287f3ccff8863fa1080aad3780b
SHA256

b7ed042b489b334c9c3ce36cb09ac0ac53a6cebcc76ecdc456a74502a29c2349
SHA512

9cb52ac9e35bb83a264f88a913ab3c6a3767afeac6ee54c3ddf7b803bdda38fa43b750e35e675ae50c2a3e6bbdd90f8ac57e4ea2031423f420af60f6238460dd
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHZnk:btng54SMLr+/AO/kIhfoKMHdak

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023409-12.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-1-5-21-3906287020-2915474608-1755617787-1000\Control Panel\International\Geo\Nation	2024-05-01_7bebc6a62fe229858d41193918b61653_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
1388	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 3840 wrote to memory of 1388	3840	2024-05-01_7bebc6a62fe229858d41193918b61653_cryptolocker.exe	81
PID 3840 wrote to memory of 1388	3840	2024-05-01_7bebc6a62fe229858d41193918b61653_cryptolocker.exe	81
PID 3840 wrote to memory of 1388	3840	2024-05-01_7bebc6a62fe229858d41193918b61653_cryptolocker.exe	81

C:\Users\Admin\AppData\Local\Temp\2024-05-01_7bebc6a62fe229858d41193918b61653_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-01_7bebc6a62fe229858d41193918b61653_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3840
- 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:1388

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
61KB

MD5
d7e5c2bbdb6e173f3c5610eace2f1bd2

SHA1
09d370510a70501a0095142949a08cfd030106ef

SHA256
71c6535a008e3a7a12fd96c3f02d0bb02f048950d8d014c9989dc811cea1dfe4

SHA512
734769af974f33b3b4a4c592f10f7fe4232af8d903d744e166e5651d1084126281eb066796d174a0f7db0a083a97840ae0548d12131fd9c64640f857b8d85616

Download Submit
memory/1388-25-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download
memory/3840-0-0x0000000002160000-0x0000000002166000-memory.dmp

Filesize
24KB

Download
memory/3840-1-0x0000000002160000-0x0000000002166000-memory.dmp

Filesize
24KB

Download
memory/3840-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download