4022f934e411331c8f8eafb595b68c77a12e59d218468f6874e66eabcafd8ac8

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
28/05/2024, 16:56

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General

Target

2024-05-28_3fefd69d58045de961a247f947030cb6_cryptolocker.exe
Size

37KB
MD5

3fefd69d58045de961a247f947030cb6
SHA1

fd3609e3c4016f34869b848d5ce3f7471d46cc72
SHA256

4022f934e411331c8f8eafb595b68c77a12e59d218468f6874e66eabcafd8ac8
SHA512

e8a951d029341eec8681e7cc587434b38bc8a04fe03f470a8974f30c1ffb191d18889013ff11ae1ee13d44cba6e894318ac89353d337e2d3ba17ef7909c655db
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunRSyk:btB9g/WItCSsAGjX7e9N0hunRvk

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012280-14.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2140	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1960	2024-05-28_3fefd69d58045de961a247f947030cb6_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
1960	2024-05-28_3fefd69d58045de961a247f947030cb6_cryptolocker.exe
2140	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1960 wrote to memory of 2140	1960	2024-05-28_3fefd69d58045de961a247f947030cb6_cryptolocker.exe	28
PID 1960 wrote to memory of 2140	1960	2024-05-28_3fefd69d58045de961a247f947030cb6_cryptolocker.exe	28
PID 1960 wrote to memory of 2140	1960	2024-05-28_3fefd69d58045de961a247f947030cb6_cryptolocker.exe	28
PID 1960 wrote to memory of 2140	1960	2024-05-28_3fefd69d58045de961a247f947030cb6_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-28_3fefd69d58045de961a247f947030cb6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-28_3fefd69d58045de961a247f947030cb6_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1960
- 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:2140

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
37KB

MD5
96354ff65bfc584371e9f472f56b84af

SHA1
20442c8b1762b2445d867a5fef0f995d3effe7c3

SHA256
f8d3fb178a2a2ea7058e05bf0cc351884a3453b56132ff8df8a198df53ea2951

SHA512
818718032f2da86ee9bd7e26e7133d629c2f082882df2d3fdf74b33d2c00b6e87f35a409faa3c8b5489cbf8b276995d9c7cc18c5aebee5bb4d53289d29d922c2

Download Submit
memory/1960-0-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/1960-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1960-8-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/2140-23-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download