2df4eaffb34e510fae657d80eaaae85bb38546b3e84882525413c1d8e183ee6b

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
13-05-2024 14:44

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General

Target

2024-05-13_0452a9bbe1cec35fa9f1f2193df6ee2d_cryptolocker.exe
Size

59KB
MD5

0452a9bbe1cec35fa9f1f2193df6ee2d
SHA1

1d426174c70b5ee8e449092fdb3004dcea05599d
SHA256

2df4eaffb34e510fae657d80eaaae85bb38546b3e84882525413c1d8e183ee6b
SHA512

cd22116f890b26fcdcce577d59f5e058436929a149ef0101a8da91f1a30d4d1c5d01c8cdba5f395131611a345a32ffa6dbd3708667cad5535d4699a17ade12e1
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHxy:btng54SMLr+/AO/kIhfoKMHdh

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001431b-13.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3012	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1720	2024-05-13_0452a9bbe1cec35fa9f1f2193df6ee2d_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
1720	2024-05-13_0452a9bbe1cec35fa9f1f2193df6ee2d_cryptolocker.exe
3012	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1720 wrote to memory of 3012	1720	2024-05-13_0452a9bbe1cec35fa9f1f2193df6ee2d_cryptolocker.exe	28
PID 1720 wrote to memory of 3012	1720	2024-05-13_0452a9bbe1cec35fa9f1f2193df6ee2d_cryptolocker.exe	28
PID 1720 wrote to memory of 3012	1720	2024-05-13_0452a9bbe1cec35fa9f1f2193df6ee2d_cryptolocker.exe	28
PID 1720 wrote to memory of 3012	1720	2024-05-13_0452a9bbe1cec35fa9f1f2193df6ee2d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-13_0452a9bbe1cec35fa9f1f2193df6ee2d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-13_0452a9bbe1cec35fa9f1f2193df6ee2d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1720
- 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:3012

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

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

Filesize
59KB

MD5
9209103a1975de7e05b53c75edec1023

SHA1
2f14850939042f71be9d5129acc711bde8264f7c

SHA256
54611012001a4717a52890cd40d06af2fe44274d4896e47d0fc7abefe8d657b9

SHA512
3d3810a32618af06221112b0cfccf44154e93d0a3730fcdc3cfb7e6d0c5fb474efc868640190a3d3bfc54f532c0656d5072b8bb3d8f4ea7006205e38279bb480

Download Submit
memory/1720-0-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/1720-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1720-8-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/3012-23-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download