56b4bca08780ab459d30be14764b6c45fcad2c276b369c5badbcbc72452722b4

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
11-05-2024 04:44

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General

Target

2024-05-11_60bcca21fe48d22e343f81b5b6af3ffd_cryptolocker.exe
Size

52KB
MD5

60bcca21fe48d22e343f81b5b6af3ffd
SHA1

889bed34a8e7055334bee2e072c9968ccd83af12
SHA256

56b4bca08780ab459d30be14764b6c45fcad2c276b369c5badbcbc72452722b4
SHA512

03dc2ecd309ec8910e0f26fba47a6889769e77b79a7cbdd68635c99556e55b13b8d27943e754bdc55bb04b0506dad5e2217eb7aabb710294bb52b4298c7edd0c
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAI4kF:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7+

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001444f-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001444f-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2620	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2156	2024-05-11_60bcca21fe48d22e343f81b5b6af3ffd_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	2024-05-11_60bcca21fe48d22e343f81b5b6af3ffd_cryptolocker.exe
2620	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2156 wrote to memory of 2620	2156	2024-05-11_60bcca21fe48d22e343f81b5b6af3ffd_cryptolocker.exe	28
PID 2156 wrote to memory of 2620	2156	2024-05-11_60bcca21fe48d22e343f81b5b6af3ffd_cryptolocker.exe	28
PID 2156 wrote to memory of 2620	2156	2024-05-11_60bcca21fe48d22e343f81b5b6af3ffd_cryptolocker.exe	28
PID 2156 wrote to memory of 2620	2156	2024-05-11_60bcca21fe48d22e343f81b5b6af3ffd_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-11_60bcca21fe48d22e343f81b5b6af3ffd_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-11_60bcca21fe48d22e343f81b5b6af3ffd_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2156
- 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:2620

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
52KB

MD5
6e82eda0a6fb8e9fc33ec5b501c6156a

SHA1
d6fb9c5928c82eb28a67285a4e7346d990f7d7a0

SHA256
884e2a3eb76c264b8559ff128a143339bfb7e64960df0301aa4a758ffff64567

SHA512
f16a440df3e382b4141cdbe32fb8edf86a8270d64db7721ce0e920f764cea2867e5284f17f381ffd5d8da273099c3aa27ddd4d4d7a2a589e9da3eb6faef0a1bf

Download Submit
memory/2156-0-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

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

Filesize
24KB

Download
memory/2156-8-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2620-23-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download