dab412d50e1b97a92d4943501a9a8988733065cdad9474f82f2689eafedc354b

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
06/03/2024, 14:44

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General

Target

2024-03-06_f77df24c314d3ba65f77aa15f4a2cd8e_cryptolocker.exe
Size

61KB
MD5

f77df24c314d3ba65f77aa15f4a2cd8e
SHA1

b06d71d68900d2b9e31b309c64a0083344f6e33b
SHA256

dab412d50e1b97a92d4943501a9a8988733065cdad9474f82f2689eafedc354b
SHA512

6bc7d31fc72a3d58118832685645685de2c9dbac48c8a3c568c6b3e7359088bbb63aa1ea686e95db8e6a111bb158bedd89aca0c8a0203b94bb17ebdab513c8ad
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHNs:btng54SMLr+/AO/kIhfoKMHdP

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000a00000002321d-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-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation	2024-03-06_f77df24c314d3ba65f77aa15f4a2cd8e_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
1960	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 2720 wrote to memory of 1960	2720	2024-03-06_f77df24c314d3ba65f77aa15f4a2cd8e_cryptolocker.exe	88
PID 2720 wrote to memory of 1960	2720	2024-03-06_f77df24c314d3ba65f77aa15f4a2cd8e_cryptolocker.exe	88
PID 2720 wrote to memory of 1960	2720	2024-03-06_f77df24c314d3ba65f77aa15f4a2cd8e_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-03-06_f77df24c314d3ba65f77aa15f4a2cd8e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-06_f77df24c314d3ba65f77aa15f4a2cd8e_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2720
- 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:1960

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
c02411ee56b8726a983e3c3c8b9c5f16

SHA1
b1e7b296fdb097da2c395d9af62267108ab674c2

SHA256
06a56e8b105e9dbed95e96257fd00fca74f64e88caeb78023509fb69317799b7

SHA512
d3ed8d20e31ec281e4b37eaadd59c56b6d4c206037b0e1ac171cee3ec1b795ab7b792fa4dd4a3773724fcfd1fc2e8b4778bfa18a7e373c8e72ab471e5bfe4340

Download Submit
memory/1960-20-0x0000000002060000-0x0000000002066000-memory.dmp

Filesize
24KB

Download
memory/2720-0-0x0000000002240000-0x0000000002246000-memory.dmp

Filesize
24KB

Download
memory/2720-1-0x0000000002240000-0x0000000002246000-memory.dmp

Filesize
24KB

Download
memory/2720-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download