a5f0a26c5ad0c2e707703a5786fcbbfb1ac51d939cf1b87d5308961b1cdec6ff

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05-09-2024 12:28

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General

Target

2024-09-05_4f0af0cc9d12dbe91fa19b97f756ad87_cryptolocker.exe
Size

37KB
MD5

4f0af0cc9d12dbe91fa19b97f756ad87
SHA1

c87a45642de9b2ff1d46815aa7847ab4396787a2
SHA256

a5f0a26c5ad0c2e707703a5786fcbbfb1ac51d939cf1b87d5308961b1cdec6ff
SHA512

02f481edd3c1535c37253f1a678bb2f72b567f68e13b57bbe730cbd4ed22b250a180568354604da15be809f286eef90238d782bdd8e75467a9b466211db4722f
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGp/YIm7wm0Ur:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XY

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2052	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2244	2024-09-05_4f0af0cc9d12dbe91fa19b97f756ad87_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-05_4f0af0cc9d12dbe91fa19b97f756ad87_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hurok.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2244	2024-09-05_4f0af0cc9d12dbe91fa19b97f756ad87_cryptolocker.exe
2052	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2244 wrote to memory of 2052	2244	2024-09-05_4f0af0cc9d12dbe91fa19b97f756ad87_cryptolocker.exe	28
PID 2244 wrote to memory of 2052	2244	2024-09-05_4f0af0cc9d12dbe91fa19b97f756ad87_cryptolocker.exe	28
PID 2244 wrote to memory of 2052	2244	2024-09-05_4f0af0cc9d12dbe91fa19b97f756ad87_cryptolocker.exe	28
PID 2244 wrote to memory of 2052	2244	2024-09-05_4f0af0cc9d12dbe91fa19b97f756ad87_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-09-05_4f0af0cc9d12dbe91fa19b97f756ad87_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-05_4f0af0cc9d12dbe91fa19b97f756ad87_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2244
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of UnmapMainImage
  PID:2052

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
37KB

MD5
276162ccbbcba3f0993dab8f3fc658e6

SHA1
92a8ba73b3f8b4e473328973a8582d2d6a4f7e14

SHA256
b20cca7545af3bf1c46700fc81cb558e061b37e44290c3d1efe4b0e7ea042b0b

SHA512
0577f4af73cde92c9500435860e21c269f7c3a68011473f365e69d3b9972b7e6fba77050673ac20475f7a6324c1cd9c8dfa9ffa4c909664607467c883efbc3dd

Download Submit
memory/2244-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2244-8-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2244-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download