0267581002bbd75b98647700a989574ef97bbc9b96a68fdda945e54d1466bf29

Analysis

max time kernel
117s
max time network
121s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
11/05/2024, 04:39

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General

Target

2024-05-11_4e7d6262434ae8b68ebf11dff9bbf530_cryptolocker.exe
Size

40KB
MD5

4e7d6262434ae8b68ebf11dff9bbf530
SHA1

dc4592e3015033b824de9cdc4491ed558b0d0cca
SHA256

0267581002bbd75b98647700a989574ef97bbc9b96a68fdda945e54d1466bf29
SHA512

cb399e0a466e49305d7e69718cac6a5393d506896cc9e5e54619906dfd5448b10533eed68b828c15d5391ff66bbfd9bb336ddc96e0097cef2b19c02a7e08909b
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunKzH15U/E8:btB9g/WItCSsAGjX7e9N0hunKLYP

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012286-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2724	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1916	2024-05-11_4e7d6262434ae8b68ebf11dff9bbf530_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
1916	2024-05-11_4e7d6262434ae8b68ebf11dff9bbf530_cryptolocker.exe
2724	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1916 wrote to memory of 2724	1916	2024-05-11_4e7d6262434ae8b68ebf11dff9bbf530_cryptolocker.exe	28
PID 1916 wrote to memory of 2724	1916	2024-05-11_4e7d6262434ae8b68ebf11dff9bbf530_cryptolocker.exe	28
PID 1916 wrote to memory of 2724	1916	2024-05-11_4e7d6262434ae8b68ebf11dff9bbf530_cryptolocker.exe	28
PID 1916 wrote to memory of 2724	1916	2024-05-11_4e7d6262434ae8b68ebf11dff9bbf530_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-11_4e7d6262434ae8b68ebf11dff9bbf530_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-11_4e7d6262434ae8b68ebf11dff9bbf530_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1916
- 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:2724

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
40KB

MD5
5a3f8506f330800681e8732765e77869

SHA1
74d6b7a966329d5a2d7b7cb06339452b507c8f49

SHA256
3eca2d34ca9f465c328843414c0861245b54db515c7c23ee805ba6dfd49e4cb4

SHA512
759886364cea91bdfffda36fddc77d6ac6c962dbf0e68b7c04493524c3982b101a7dcd4df1f1d323f895a88323f2a53d2582b9ad602d180b84ea589e7d06e955

Download Submit
memory/1916-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1916-8-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/1916-0-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2724-23-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download