81236e3f69869bba795978343212f9c1321b89166cfbb24190bf703a8d782673

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
25-09-2024 03:50

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General

Target

2024-09-25_dfc795b0145c41c3ec1d5f42a767186e_cryptolocker.exe
Size

31KB
MD5

dfc795b0145c41c3ec1d5f42a767186e
SHA1

a6bf7d1504758bba72a581f7ae132ac7cfaf7f4d
SHA256

81236e3f69869bba795978343212f9c1321b89166cfbb24190bf703a8d782673
SHA512

e4b6f44bb75068f6386682ceb1c1bb842ec1f6546c73fc516b1881ab1e98d23819d09a9fc4f4b2938d2181eaf095e7377e5e26ff4a315d334d6513e9cb975136
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGbNAKSjNfw:o1KhxqwtdgI2MyzNORQtOflIwoHNV2X1

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2424	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2548	2024-09-25_dfc795b0145c41c3ec1d5f42a767186e_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	hurok.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-25_dfc795b0145c41c3ec1d5f42a767186e_cryptolocker.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2548	2024-09-25_dfc795b0145c41c3ec1d5f42a767186e_cryptolocker.exe
2424	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2548 wrote to memory of 2424	2548	2024-09-25_dfc795b0145c41c3ec1d5f42a767186e_cryptolocker.exe	30
PID 2548 wrote to memory of 2424	2548	2024-09-25_dfc795b0145c41c3ec1d5f42a767186e_cryptolocker.exe	30
PID 2548 wrote to memory of 2424	2548	2024-09-25_dfc795b0145c41c3ec1d5f42a767186e_cryptolocker.exe	30
PID 2548 wrote to memory of 2424	2548	2024-09-25_dfc795b0145c41c3ec1d5f42a767186e_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-25_dfc795b0145c41c3ec1d5f42a767186e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-25_dfc795b0145c41c3ec1d5f42a767186e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2548
- 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:2424

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
31KB

MD5
44a81240e6e1f01db25a122b3badbdaf

SHA1
e19d2beafa3afdb051b1bcd56c8bd35bbc29e725

SHA256
c0d9e431cddc5cfa5cee20e0439ef497724b1bbc7314a294814bdf87a0e58b7a

SHA512
6a44c2ee557e353fff869b16190ad6b226c4855f86dc87c59c593a3882cf12578f4768649856de7324593b8522bd8b2b9861eb2ebe864c83a132d7436f8bc924

Download Submit
memory/2548-8-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2548-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2548-0-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download