1117645c40624aec0f0e0a45d08cbc428528cfb249fff8a7f5b69a11aaeab3d1

Analysis

max time kernel
148s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
14/03/2024, 13:43

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General

Target

2024-03-14_730ea2ac96e4a3fa6e0cd950eacc6f6a_cryptolocker.exe
Size

63KB
MD5

730ea2ac96e4a3fa6e0cd950eacc6f6a
SHA1

849391574e6fc82b589e49ad8ba499bdad89411b
SHA256

1117645c40624aec0f0e0a45d08cbc428528cfb249fff8a7f5b69a11aaeab3d1
SHA512

d223d01f4933128a85be07b11f92a6b267e9eb55777238cb2848a01cc9532e53d70c3f8ffdafd87497b65d5b05e0015da8536c98b2024475c40c69355db2d0f8
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF29343I:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7F

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012239-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012239-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2952	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
1764	2024-03-14_730ea2ac96e4a3fa6e0cd950eacc6f6a_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
1764	2024-03-14_730ea2ac96e4a3fa6e0cd950eacc6f6a_cryptolocker.exe
2952	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1764 wrote to memory of 2952	1764	2024-03-14_730ea2ac96e4a3fa6e0cd950eacc6f6a_cryptolocker.exe	28
PID 1764 wrote to memory of 2952	1764	2024-03-14_730ea2ac96e4a3fa6e0cd950eacc6f6a_cryptolocker.exe	28
PID 1764 wrote to memory of 2952	1764	2024-03-14_730ea2ac96e4a3fa6e0cd950eacc6f6a_cryptolocker.exe	28
PID 1764 wrote to memory of 2952	1764	2024-03-14_730ea2ac96e4a3fa6e0cd950eacc6f6a_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-14_730ea2ac96e4a3fa6e0cd950eacc6f6a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-14_730ea2ac96e4a3fa6e0cd950eacc6f6a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1764
- 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:2952

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
64KB

MD5
0cc7e876d97e154eea62bebd143700aa

SHA1
3c9cc6c6bc8fa1ae0973fb548bf66ed2d6501243

SHA256
ec6738de5b5f20b8b0c95d4da071e2ea89b7db42fb859461a8dd61ac01cce910

SHA512
b85f47684c71d35a2af7994180b9950f3adff2018008b257ba289d1d088cf4d4bc826200d9b3daafabe1a0f043342dc111d02788bf267da177f3092077d23316

Download Submit
memory/1764-0-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1764-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1764-2-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2952-23-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download