8d968506fad49b5819bc1c11969fc313ad41ac8efa148b472c9b4d8a212591dc

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
28/02/2024, 06:23

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General

Target

2024-02-28_047980f8b0ffb7986e8cf28f1b72d40b_cryptolocker.exe
Size

36KB
MD5

047980f8b0ffb7986e8cf28f1b72d40b
SHA1

77c95a86cae801552d984e1c75eeab996436cd74
SHA256

8d968506fad49b5819bc1c11969fc313ad41ac8efa148b472c9b4d8a212591dc
SHA512

0c831d7e2ca2e6a087396af60ddbfe6580feddfd4f84de6955f330de395f417113f2dc900313e45001797ca66f4246cbd74d784481f3d48a81ef31008691250c
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGp/YIm7wmk5ut:o1KhxqwtdgI2MyzNORQtOflIwoHNV2Xm

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012255-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012255-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2520	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2192	2024-02-28_047980f8b0ffb7986e8cf28f1b72d40b_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
2192	2024-02-28_047980f8b0ffb7986e8cf28f1b72d40b_cryptolocker.exe
2520	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2192 wrote to memory of 2520	2192	2024-02-28_047980f8b0ffb7986e8cf28f1b72d40b_cryptolocker.exe	28
PID 2192 wrote to memory of 2520	2192	2024-02-28_047980f8b0ffb7986e8cf28f1b72d40b_cryptolocker.exe	28
PID 2192 wrote to memory of 2520	2192	2024-02-28_047980f8b0ffb7986e8cf28f1b72d40b_cryptolocker.exe	28
PID 2192 wrote to memory of 2520	2192	2024-02-28_047980f8b0ffb7986e8cf28f1b72d40b_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-28_047980f8b0ffb7986e8cf28f1b72d40b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-28_047980f8b0ffb7986e8cf28f1b72d40b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2192
- 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:2520

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
36KB

MD5
834bc39b10cbab76880790ce8f586912

SHA1
2c67831d6da3c9a9c5fedee03da78633710657f7

SHA256
c5530396f454e2940b15dd47d7e0078ae95f41c1ecd8b6cd0d5e35a31d6b3b29

SHA512
7cf4907f081b813c18b8a186f6a811ed60cae0854b56e2b207fb4f5206b663627f227fb8ec54cadeb1a69b0054350cc395c32640e9de1cc659a7ddd37e36fc51

Download Submit
memory/2192-0-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2192-2-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2192-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2520-19-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download