a0592ae63ebf93d1b5df845581b8b4912e7e7d706bc934d7a67dc2fe17839467

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
25/05/2024, 11:43

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General

Target

2024-05-25_8277c853d43fa9179ad9202cd2cb3af5_cryptolocker.exe
Size

68KB
MD5

8277c853d43fa9179ad9202cd2cb3af5
SHA1

b2d3ed4e1184b082e4ac5a5ce8aecf3338d95dc5
SHA256

a0592ae63ebf93d1b5df845581b8b4912e7e7d706bc934d7a67dc2fe17839467
SHA512

bb7b7a6b084fe9166eb1cb017474102e46901c3d246d38cc1ea8512b726ffa029ece88a6fc981d47ea4749b5398f9fe6fd6b2857f67f7dbfc893ae528360ade9
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF293vaRLEV:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7d

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000015f7a-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000015f7a-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2748	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
1620	2024-05-25_8277c853d43fa9179ad9202cd2cb3af5_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
1620	2024-05-25_8277c853d43fa9179ad9202cd2cb3af5_cryptolocker.exe
2748	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1620 wrote to memory of 2748	1620	2024-05-25_8277c853d43fa9179ad9202cd2cb3af5_cryptolocker.exe	28
PID 1620 wrote to memory of 2748	1620	2024-05-25_8277c853d43fa9179ad9202cd2cb3af5_cryptolocker.exe	28
PID 1620 wrote to memory of 2748	1620	2024-05-25_8277c853d43fa9179ad9202cd2cb3af5_cryptolocker.exe	28
PID 1620 wrote to memory of 2748	1620	2024-05-25_8277c853d43fa9179ad9202cd2cb3af5_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-25_8277c853d43fa9179ad9202cd2cb3af5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-25_8277c853d43fa9179ad9202cd2cb3af5_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1620
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2748

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\hurok.exe

Filesize
68KB

MD5
165c5960cf02f3b3775df3bccc507d1c

SHA1
8ba8b10169fb41c3470b2e860e662c8417bf74e3

SHA256
376928fe6002aabe177a256599637e1af7c57362957e580b766740c1e7281a42

SHA512
5a95723fba213bd4914b243335211a76dd6bdc4ba8f62c710775ee7ffbb3109c25f42584de72721166d64f1d267be74b2c066958dedb1e60fa6b5742a3aab52b

Download Submit
memory/1620-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/1620-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1620-8-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download