b709ee55c165c9eb9417f25cb2e8f21b589ea4fdd129d86461d383e87090e52d

Analysis

max time kernel
92s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09/10/2024, 03:34

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General

Target

2024-10-09_19f4ed3372ae6924f96b87615d6de146_cryptolocker.exe
Size

60KB
MD5

19f4ed3372ae6924f96b87615d6de146
SHA1

9da2e9fcb095c4ef6adf3ef97b5a3fcf1fff6d38
SHA256

b709ee55c165c9eb9417f25cb2e8f21b589ea4fdd129d86461d383e87090e52d
SHA512

a28aaeef8664125387fadeb66fb0838a637de964777c2bd0ea24782aebdcd193cf6301051ec9501539d5a562d99709a9f732be9b04b2c6649eee1463f1e161ed
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1x/9lfL+gniDS08:aq7tdgI2MyzNORQtOflIwoHNV2XBFV70

Score

7^/10

discovery

Malware Config

Signatures

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	2024-10-09_19f4ed3372ae6924f96b87615d6de146_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
4836	hurok.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	2024-10-09_19f4ed3372ae6924f96b87615d6de146_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hurok.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 728 wrote to memory of 4836	728	2024-10-09_19f4ed3372ae6924f96b87615d6de146_cryptolocker.exe	85
PID 728 wrote to memory of 4836	728	2024-10-09_19f4ed3372ae6924f96b87615d6de146_cryptolocker.exe	85
PID 728 wrote to memory of 4836	728	2024-10-09_19f4ed3372ae6924f96b87615d6de146_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-10-09_19f4ed3372ae6924f96b87615d6de146_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-09_19f4ed3372ae6924f96b87615d6de146_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:728
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4836

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

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

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

Filesize
61KB

MD5
af39b7a71e6064cdd80903ad1c7deb85

SHA1
72c577ee73b6e5a5e1554aa5846ddf852fecfc5e

SHA256
8ec355df7ada696630f1e76832107c2e1839fd9939930a368673c3fd7d608496

SHA512
2aa2b118fd13b632febbfb4ef04e5d20c47b579e0c3c6e7c96e60f5b069c7f3e46f9977a8c473a0f9994ca61eed931a170989915684990e697cd651821a2e823

Download Submit
memory/728-0-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download
memory/728-1-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download
memory/728-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4836-19-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download