ead8e3e9958652825e62446df553d7e99bd690b6873f4b4b77110f7ff6501f6a

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
02/02/2024, 10:37

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General

Target

2024-02-02_aac9890e46e0f6aa7580bbba5a5ee0b5_cryptolocker.exe
Size

60KB
MD5

aac9890e46e0f6aa7580bbba5a5ee0b5
SHA1

4db404abc9f3065a0b746eeb17f5ebda7fef5aba
SHA256

ead8e3e9958652825e62446df553d7e99bd690b6873f4b4b77110f7ff6501f6a
SHA512

e0c69f608444c519739ed0824ca51a82fc0275f7e3ab3da640543b79cae3b2a74ad760b0a38e2cda50d63d91dc9ed17dcce0c353578ad279d424a446dbd580d3
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHu:btng54SMLr+/AO/kIhfoKMHdD

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012234-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2112	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1940	2024-02-02_aac9890e46e0f6aa7580bbba5a5ee0b5_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
1940	2024-02-02_aac9890e46e0f6aa7580bbba5a5ee0b5_cryptolocker.exe
2112	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1940 wrote to memory of 2112	1940	2024-02-02_aac9890e46e0f6aa7580bbba5a5ee0b5_cryptolocker.exe	28
PID 1940 wrote to memory of 2112	1940	2024-02-02_aac9890e46e0f6aa7580bbba5a5ee0b5_cryptolocker.exe	28
PID 1940 wrote to memory of 2112	1940	2024-02-02_aac9890e46e0f6aa7580bbba5a5ee0b5_cryptolocker.exe	28
PID 1940 wrote to memory of 2112	1940	2024-02-02_aac9890e46e0f6aa7580bbba5a5ee0b5_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-02_aac9890e46e0f6aa7580bbba5a5ee0b5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-02_aac9890e46e0f6aa7580bbba5a5ee0b5_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1940
- 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:2112

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
60KB

MD5
bf7ec7a43c8ef2f5f9fdfeff181df7c2

SHA1
28fee08dd2dca994c436612207c2cc309c34aa89

SHA256
069a54e43cd2038be0e89508fac8b607f4f3bd504c45201112d751a804bc14e2

SHA512
23856eec5d7b040b28c969044fdd20f9b821d721eb409a2061085b94376256cb0a77945b890fd48dfc9012547cbf684c0934e0f06aa0dbdbbf3d8bcf70e5b9e0

Download Submit
memory/1940-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1940-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1940-3-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2112-16-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download