3accf8c0ba5162627886e10268f1f7c8a5d9fbf7bd5cac200a5d10289b5fa156

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10/04/2024, 15:29

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General

Target

2024-04-10_788f6e9a323f911368bf765edce4ca5d_cryptolocker.exe
Size

37KB
MD5

788f6e9a323f911368bf765edce4ca5d
SHA1

13c2cd61353f4efd8a5c65b703bc18f6ee2fa1a6
SHA256

3accf8c0ba5162627886e10268f1f7c8a5d9fbf7bd5cac200a5d10289b5fa156
SHA512

d9ef4cea97f3fccbe70e6cb6fca2f57c0f8246d09bf5ecf128510ee529e5943d8473193962337422680ed81de98604b3a332f639cd2a0a387c88f411a79c185c
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunRSyHmYvV8B:btB9g/WItCSsAGjX7e9N0hunRvGIV8B

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001224f-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2184	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2356	2024-04-10_788f6e9a323f911368bf765edce4ca5d_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
2356	2024-04-10_788f6e9a323f911368bf765edce4ca5d_cryptolocker.exe
2184	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2356 wrote to memory of 2184	2356	2024-04-10_788f6e9a323f911368bf765edce4ca5d_cryptolocker.exe	28
PID 2356 wrote to memory of 2184	2356	2024-04-10_788f6e9a323f911368bf765edce4ca5d_cryptolocker.exe	28
PID 2356 wrote to memory of 2184	2356	2024-04-10_788f6e9a323f911368bf765edce4ca5d_cryptolocker.exe	28
PID 2356 wrote to memory of 2184	2356	2024-04-10_788f6e9a323f911368bf765edce4ca5d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-10_788f6e9a323f911368bf765edce4ca5d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-10_788f6e9a323f911368bf765edce4ca5d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2356
- 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:2184

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
37KB

MD5
7cfaabae1f9ccd0e5fe6d808a640a2a4

SHA1
69748fc0de05cfcf027500b55dff0c97723f66cc

SHA256
7aca8aa1818baad79e6dd72a2d116ac01338340d82ee20eaf4ca38301e4897f8

SHA512
8af164792b853333de5b2017bbe10e7c1251eaf6a1555e1387860d439d3f5e12dd9ab36dcdd5c7d6765d98871029ff2f8da37a55849709214be8d5865a35a204

Download Submit
memory/2184-17-0x00000000003D0000-0x00000000003D6000-memory.dmp

Filesize
24KB

Download
memory/2356-0-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2356-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2356-8-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download