7dafa214866f013042a388d66378f51a6182651e97b4646234d425b3e8142d23

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
19-02-2024 05:04

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General

Target

2024-02-19_a7c0efc668be0a226969e2a1cd67501d_cryptolocker.exe
Size

64KB
MD5

a7c0efc668be0a226969e2a1cd67501d
SHA1

89e6e71057f93c933f54006ecc788024ffc96b9e
SHA256

7dafa214866f013042a388d66378f51a6182651e97b4646234d425b3e8142d23
SHA512

4156206d5ecbc7874801151b85c1403a99f3ffcf4f3d1eca60cdfda16f3a8179ac0c81627972557009cf2df55321645f0c6f1de80aa3be5dc9c07c5c92ede831
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1x/9lfL+gniDSA96:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7w

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012251-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012251-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3044	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2144	2024-02-19_a7c0efc668be0a226969e2a1cd67501d_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
2144	2024-02-19_a7c0efc668be0a226969e2a1cd67501d_cryptolocker.exe
3044	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2144 wrote to memory of 3044	2144	2024-02-19_a7c0efc668be0a226969e2a1cd67501d_cryptolocker.exe	28
PID 2144 wrote to memory of 3044	2144	2024-02-19_a7c0efc668be0a226969e2a1cd67501d_cryptolocker.exe	28
PID 2144 wrote to memory of 3044	2144	2024-02-19_a7c0efc668be0a226969e2a1cd67501d_cryptolocker.exe	28
PID 2144 wrote to memory of 3044	2144	2024-02-19_a7c0efc668be0a226969e2a1cd67501d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-19_a7c0efc668be0a226969e2a1cd67501d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-19_a7c0efc668be0a226969e2a1cd67501d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2144
- 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:3044

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
faf4f6792b59bfe1799c7ef143ee0fd1

SHA1
11d9baa1ccd83b277fd9a76d6b281c2f237cbde2

SHA256
d7f130e855df9ecbfdade0d5c79b53ff394e1daf73f5b6e298b3958b54a5eade

SHA512
bde3769cf853118b82328fe1fb9c4c6f9dd0bd7f2e99db211e116dbe6512fc1ea12e7c612c317ac793300ba3a6abbb999e05e97394c3666e18563a3a3d1aad6c

Download Submit
memory/2144-0-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2144-2-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2144-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3044-23-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download