708e38eccbd35305831f5cdb1eca8f5103f6423287b1cf203992ac31996ca4c0

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
14/05/2024, 23:28

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General

Target

2024-05-14_abd2b034d9f7a4776256b77e6a449aa4_cryptolocker.exe
Size

30KB
MD5

abd2b034d9f7a4776256b77e6a449aa4
SHA1

d0c71375fcb0a96eb6ac71b3e388706a51a84570
SHA256

708e38eccbd35305831f5cdb1eca8f5103f6423287b1cf203992ac31996ca4c0
SHA512

aef2162afff3058c6858806b32f58a803793a396c75bb7852230ce124fd7f383ca1591b05b458e3168529a6d6cf366ad978e3c7e7f03c9009537aa298c1e824c
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGbNAKSjNfF:o1KhxqwtdgI2MyzNORQtOflIwoHNV2Xw

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001226d-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001226d-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2572	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
1964	2024-05-14_abd2b034d9f7a4776256b77e6a449aa4_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
1964	2024-05-14_abd2b034d9f7a4776256b77e6a449aa4_cryptolocker.exe
2572	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1964 wrote to memory of 2572	1964	2024-05-14_abd2b034d9f7a4776256b77e6a449aa4_cryptolocker.exe	28
PID 1964 wrote to memory of 2572	1964	2024-05-14_abd2b034d9f7a4776256b77e6a449aa4_cryptolocker.exe	28
PID 1964 wrote to memory of 2572	1964	2024-05-14_abd2b034d9f7a4776256b77e6a449aa4_cryptolocker.exe	28
PID 1964 wrote to memory of 2572	1964	2024-05-14_abd2b034d9f7a4776256b77e6a449aa4_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-14_abd2b034d9f7a4776256b77e6a449aa4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-14_abd2b034d9f7a4776256b77e6a449aa4_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1964
- 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:2572

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
30KB

MD5
7ccf27244b9a4872f9e312364e122091

SHA1
a751b3f556da402b97f4f9c9f95ffb169df10e66

SHA256
8a49b711fe11dfc1d7dd514d796c4fec370b815f381297621797a67fb24efdc5

SHA512
3301d5596858c9aaa996285244521844098349e6da04e47b960ef1aede6748f1eb316ff2823eaa668d91c522f1f6a543ee72549d93e77a725801b3d859d6bc5a

Download Submit
memory/1964-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/1964-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1964-8-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2572-23-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download