413609e523abb8729871eb921e72f83fbd43b75e9ef32e0342551831fd248683

Analysis

max time kernel
118s
max time network
122s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09/03/2024, 01:41

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General

Target

2024-03-09_cbe3e4de7fb3edb0316d55dd78fc4387_cryptolocker.exe
Size

61KB
MD5

cbe3e4de7fb3edb0316d55dd78fc4387
SHA1

d197777702cec15b0efb78541e214d36004e9c96
SHA256

413609e523abb8729871eb921e72f83fbd43b75e9ef32e0342551831fd248683
SHA512

388841ced455ce4b40c82bec2980b03015869e7c2a2d94f736c863bb5b5f66b116e9ae8b4e3eeff33be28c22f3b5cfacb86fcc775e54c60de1b16d0847968476
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHJ:btng54SMLr+/AO/kIhfoKMHdY

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000015c29-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1988	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2852	2024-03-09_cbe3e4de7fb3edb0316d55dd78fc4387_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2852	2024-03-09_cbe3e4de7fb3edb0316d55dd78fc4387_cryptolocker.exe
1988	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2852 wrote to memory of 1988	2852	2024-03-09_cbe3e4de7fb3edb0316d55dd78fc4387_cryptolocker.exe	28
PID 2852 wrote to memory of 1988	2852	2024-03-09_cbe3e4de7fb3edb0316d55dd78fc4387_cryptolocker.exe	28
PID 2852 wrote to memory of 1988	2852	2024-03-09_cbe3e4de7fb3edb0316d55dd78fc4387_cryptolocker.exe	28
PID 2852 wrote to memory of 1988	2852	2024-03-09_cbe3e4de7fb3edb0316d55dd78fc4387_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-09_cbe3e4de7fb3edb0316d55dd78fc4387_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-09_cbe3e4de7fb3edb0316d55dd78fc4387_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2852
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:1988

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
61KB

MD5
e5a6c0fd988066ff41150dbaa24d7887

SHA1
11f32432cb04b55c8b3696b77ecdf5994b8a0e6b

SHA256
ade769e019c17f2937f6c58754b3ea6f199ca93e20bfdc885e8fa561bdfcf5dd

SHA512
7496a495a324e493247178b71e06a3f9882abac52b341b6e110cc53435caa5cb8a9446ba935f49bccde4a344da744b6c72cf118d2567b5216dc36d5801d6bd61

Download Submit
memory/1988-23-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2852-0-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download
memory/2852-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2852-2-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download