160627e826bfdd586618cbbba1caf2b53b21a3c8848e9030f00870547723e61a

Analysis

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

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
25/05/2024, 02:26

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General

Target

2024-05-25_1d073cd5d2b4e4abdbe6eaa248d290e8_cryptolocker.exe
Size

30KB
MD5

1d073cd5d2b4e4abdbe6eaa248d290e8
SHA1

1471b256cb0f9d4042bfb8660cc5b9671b4e3561
SHA256

160627e826bfdd586618cbbba1caf2b53b21a3c8848e9030f00870547723e61a
SHA512

3e0b8dd3ad56b2f93aaeaca2b33624a5e2aeae6d8f939028eddb21102f9120f18e041be3452fdd47a1248d9bf173df198b80aa63f36cebd754de4124ca122de7
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGbNAKSjNfO:o1KhxqwtdgI2MyzNORQtOflIwoHNV2Xn

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014ef8-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014ef8-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2932	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
1660	2024-05-25_1d073cd5d2b4e4abdbe6eaa248d290e8_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
1660	2024-05-25_1d073cd5d2b4e4abdbe6eaa248d290e8_cryptolocker.exe
2932	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1660 wrote to memory of 2932	1660	2024-05-25_1d073cd5d2b4e4abdbe6eaa248d290e8_cryptolocker.exe	28
PID 1660 wrote to memory of 2932	1660	2024-05-25_1d073cd5d2b4e4abdbe6eaa248d290e8_cryptolocker.exe	28
PID 1660 wrote to memory of 2932	1660	2024-05-25_1d073cd5d2b4e4abdbe6eaa248d290e8_cryptolocker.exe	28
PID 1660 wrote to memory of 2932	1660	2024-05-25_1d073cd5d2b4e4abdbe6eaa248d290e8_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-25_1d073cd5d2b4e4abdbe6eaa248d290e8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-25_1d073cd5d2b4e4abdbe6eaa248d290e8_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1660
- 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:2932

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
e6cad3ad766093f8cb8659758c2196ad

SHA1
1e0675abd421bfdbcf3244f076e8d4437710332d

SHA256
2cacb54b60f58eca75d6187fe2d88dcf00969d92e49c93a1b646af1f7747bd33

SHA512
38267d49499bf57d307767f832a7ce2f1be954d810c0c23d425dea70da7b98b5eaf6a79ccbee268cc62318269b566577286186791a05667b8ff47a131c926bcc

Download Submit
memory/1660-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1660-8-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/1660-0-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2932-23-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download