2f84e880d48cef6c206f8253ea8332ea005886304529e29ab09357616060cc35

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
10/06/2024, 04:53

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General

Target

2024-06-10_9b73e31fd59886675596e7bfca457a7d_cryptolocker.exe
Size

65KB
MD5

9b73e31fd59886675596e7bfca457a7d
SHA1

8b1b2e2468ee2c3721a018ac065ab508f0cc9914
SHA256

2f84e880d48cef6c206f8253ea8332ea005886304529e29ab09357616060cc35
SHA512

092b7fc8ac89bee38cbdd0a62eba47f4ac7f75f0a529c9cae97c591ba715f857fbd04da7926fa336fcfe41176ca0902520f099e4f8ddb8965e2a28a8c403275c
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF293W1:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7m

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001226e-13.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001226e-13.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2792	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2912	2024-06-10_9b73e31fd59886675596e7bfca457a7d_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
2912	2024-06-10_9b73e31fd59886675596e7bfca457a7d_cryptolocker.exe
2792	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2912 wrote to memory of 2792	2912	2024-06-10_9b73e31fd59886675596e7bfca457a7d_cryptolocker.exe	28
PID 2912 wrote to memory of 2792	2912	2024-06-10_9b73e31fd59886675596e7bfca457a7d_cryptolocker.exe	28
PID 2912 wrote to memory of 2792	2912	2024-06-10_9b73e31fd59886675596e7bfca457a7d_cryptolocker.exe	28
PID 2912 wrote to memory of 2792	2912	2024-06-10_9b73e31fd59886675596e7bfca457a7d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-10_9b73e31fd59886675596e7bfca457a7d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-10_9b73e31fd59886675596e7bfca457a7d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2912
- 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:2792

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

C:\Users\Admin\AppData\Local\Temp\hurok.exe

Filesize
65KB

MD5
ab939cff8f6a7d0b3ef333f9ddde87af

SHA1
5ed85e2f489a8c19ea52e17a9e0ba17e68074ca9

SHA256
7736b6c800c2efe11e499b52df58a56a087dbf8f4e5d06dc98342bbd260c5abe

SHA512
a6d427f86d8ab21b592202b152fec3818e9e4be7e604c7b9cde27c2eab77964a4787e186c56f780467eae48745cff19a893bf96e01156db747a33ae5eee5a026

Download Submit
memory/2792-23-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2912-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2912-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2912-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download