c37d011756c1870fadc3e3556ff7760717cc80dcce0fb4f941ae6cc5acb44f42

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
11-04-2024 06:28

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General

Target

2024-04-11_df5a390eb3e19ba7b15887a8a0606dce_cryptolocker.exe
Size

62KB
MD5

df5a390eb3e19ba7b15887a8a0606dce
SHA1

059ad1dd2345b5bc9370dc2fe2b100ae59791628
SHA256

c37d011756c1870fadc3e3556ff7760717cc80dcce0fb4f941ae6cc5acb44f42
SHA512

bf4fa4b895adea624011bf413192ff472a7aa9e2e730a3589189a520875f4fe0033d843c06c33667cf0f854f5918f4195a064985b6c4f8034cbf72fa6aa4e429
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHa+:btng54SMLr+/AO/kIhfoKMHdc

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000224f7-12.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-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation	2024-04-11_df5a390eb3e19ba7b15887a8a0606dce_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
2520	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 3744 wrote to memory of 2520	3744	2024-04-11_df5a390eb3e19ba7b15887a8a0606dce_cryptolocker.exe	85
PID 3744 wrote to memory of 2520	3744	2024-04-11_df5a390eb3e19ba7b15887a8a0606dce_cryptolocker.exe	85
PID 3744 wrote to memory of 2520	3744	2024-04-11_df5a390eb3e19ba7b15887a8a0606dce_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-04-11_df5a390eb3e19ba7b15887a8a0606dce_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-11_df5a390eb3e19ba7b15887a8a0606dce_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3744
- 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:2520

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\gewos.exe

Filesize
62KB

MD5
1e9f64ca912190528a168b1799b091f9

SHA1
5a4fc39eaa800898579ad1c13047640a48f2be7c

SHA256
3230dd4c0240b6d468b7fd3de8fdbe5e8cc8b8eefc138bd21feb1a9031cf5380

SHA512
b854faec6021b0ac06be9bb3cea2c9bcd33661eda49bea3d18b6da5809f8f5a7584ac482b84921244f3dfc54756b270e3873dbb106a499cdb28c2e4aede26dbd

Download Submit
memory/2520-21-0x0000000002120000-0x0000000002126000-memory.dmp

Filesize
24KB

Download
memory/3744-0-0x00000000022D0000-0x00000000022D6000-memory.dmp

Filesize
24KB

Download
memory/3744-1-0x00000000022D0000-0x00000000022D6000-memory.dmp

Filesize
24KB

Download
memory/3744-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download