8c6dd549b6fb32f8815d415c6b7ffe0e71114cd3af1c96b17dcf22e4e79e0eec

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
24-05-2024 04:25

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General

Target

2024-05-24_3370a742834a6e4873a186a27f31c61e_cryptolocker.exe
Size

41KB
MD5

3370a742834a6e4873a186a27f31c61e
SHA1

b77c4b0c0597a13e6cedf52608e9e1eb1f5c058b
SHA256

8c6dd549b6fb32f8815d415c6b7ffe0e71114cd3af1c96b17dcf22e4e79e0eec
SHA512

0862bfd2567809d5cda570a482b9318840f3917c9de2852201ce8c28f18b9917537232235f4fff730967faff30baa018f938d2d248456f02b5ff021ff459a53b
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunKzH15U/Ey/A:btB9g/WItCSsAGjX7e9N0hunKLYNOZN

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00080000000122cd-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2516	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2156	2024-05-24_3370a742834a6e4873a186a27f31c61e_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
2156	2024-05-24_3370a742834a6e4873a186a27f31c61e_cryptolocker.exe
2516	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2156 wrote to memory of 2516	2156	2024-05-24_3370a742834a6e4873a186a27f31c61e_cryptolocker.exe	28
PID 2156 wrote to memory of 2516	2156	2024-05-24_3370a742834a6e4873a186a27f31c61e_cryptolocker.exe	28
PID 2156 wrote to memory of 2516	2156	2024-05-24_3370a742834a6e4873a186a27f31c61e_cryptolocker.exe	28
PID 2156 wrote to memory of 2516	2156	2024-05-24_3370a742834a6e4873a186a27f31c61e_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-24_3370a742834a6e4873a186a27f31c61e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-24_3370a742834a6e4873a186a27f31c61e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2156
- 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:2516

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
41KB

MD5
33a8b824ede98f3b8286fd0cc6032100

SHA1
a22f41cdec623e1a03e1bc04d58a7cbfd0c0ca69

SHA256
408d7f2c744b13317baff85aa793e7530f2f07d4f4f3c90fc539f26fbcb6d637

SHA512
38c63229f14b062bbd79c44faf7f870763190647c9f75fe2c47f204a5d93fdc09bb363c321800860d1adcc5582a2bfa8f9e4f784f9fd64fcc134c6358a1bf451

Download Submit
memory/2156-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2156-8-0x00000000007E0000-0x00000000007E6000-memory.dmp

Filesize
24KB

Download
memory/2156-0-0x00000000007E0000-0x00000000007E6000-memory.dmp

Filesize
24KB

Download
memory/2516-23-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download