c2a17fb36087481e06b25697df3293a7bfe563274f6254071784a77600a77083

Analysis

max time kernel
93s
max time network
117s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
24-02-2024 04:51

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General

Target

2024-02-24_7769ec5c9509620fbfa7b7ff9122bb06_cryptolocker.exe
Size

61KB
MD5

7769ec5c9509620fbfa7b7ff9122bb06
SHA1

7f210a41ef2af42a1e3877ef1fb5602a6bd3d9c5
SHA256

c2a17fb36087481e06b25697df3293a7bfe563274f6254071784a77600a77083
SHA512

d6bd4c3b2833763b7924e1e47fb34d4e5b86e142313188c23523507823f3f1aaea56e7145739b3981310adebf45240456737ee3ea5747e11faaaa2b2069f433a
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHNa:btng54SMLr+/AO/kIhfoKMHd1

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000b000000023161-12.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-1-5-21-1392040655-2056082574-619088944-1000\Control Panel\International\Geo\Nation	2024-02-24_7769ec5c9509620fbfa7b7ff9122bb06_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1392040655-2056082574-619088944-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
3564	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 2676 wrote to memory of 3564	2676	2024-02-24_7769ec5c9509620fbfa7b7ff9122bb06_cryptolocker.exe	88
PID 2676 wrote to memory of 3564	2676	2024-02-24_7769ec5c9509620fbfa7b7ff9122bb06_cryptolocker.exe	88
PID 2676 wrote to memory of 3564	2676	2024-02-24_7769ec5c9509620fbfa7b7ff9122bb06_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-02-24_7769ec5c9509620fbfa7b7ff9122bb06_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-24_7769ec5c9509620fbfa7b7ff9122bb06_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2676
- 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:3564

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
61KB

MD5
32578b90f0c00fc04127b37e95c58382

SHA1
74b88b012cd266c42d69b5d9ce5a6eedb335b1ed

SHA256
702377bc0bb28d5430af59493225850b295584051ec16fc3be5845ef1ce35ed5

SHA512
fe424c6d63eb2aa07e699a41352ffa7ef8b0ad9d73dae0da8ad0c50db6b5cbba4cf6f791e58313247e4f9e5d93a86e9aa8b2575b18989374401229e3d4fe8a0d

Download Submit
memory/2676-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2676-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2676-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3564-19-0x0000000000700000-0x0000000000706000-memory.dmp

Filesize
24KB

Download