2a55fcea13814ce985d026c1cfa0484bfd1f8be12e72ff6d99a4edf6d6143f2a

Analysis

max time kernel
94s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10-10-2024 05:32

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General

Target

2024-10-10_39f4a6c8aeb6f925adcfb03fcb1983d7_cryptolocker.exe
Size

41KB
MD5

39f4a6c8aeb6f925adcfb03fcb1983d7
SHA1

69e08bcd93d863446d7ef519295980b690b08a5f
SHA256

2a55fcea13814ce985d026c1cfa0484bfd1f8be12e72ff6d99a4edf6d6143f2a
SHA512

5189a3f8cd2209419602f18cfdbb512da9fd610731e73d7c43a475b3be3c9653efcba4e15a13323cad435d483107e57567eb7a032f265feeeb37387e167a681d
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGpebVIYLHA3KxB:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XA

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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	2024-10-10_39f4a6c8aeb6f925adcfb03fcb1983d7_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
4768	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	2024-10-10_39f4a6c8aeb6f925adcfb03fcb1983d7_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 1596 wrote to memory of 4768	1596	2024-10-10_39f4a6c8aeb6f925adcfb03fcb1983d7_cryptolocker.exe	84
PID 1596 wrote to memory of 4768	1596	2024-10-10_39f4a6c8aeb6f925adcfb03fcb1983d7_cryptolocker.exe	84
PID 1596 wrote to memory of 4768	1596	2024-10-10_39f4a6c8aeb6f925adcfb03fcb1983d7_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-10-10_39f4a6c8aeb6f925adcfb03fcb1983d7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-10_39f4a6c8aeb6f925adcfb03fcb1983d7_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1596
- 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:4768

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
41KB

MD5
1fb305804f190aa53842f25dc843605d

SHA1
89c1eee78912e19627dd00dad826cb72ff144545

SHA256
2f78dab1ca48a29943b34179ddbd22147c8aafef18e51c53aa0ea538abff793a

SHA512
47a187e13fb4e62bc3b48a74e7de01b5bec42e932847ea8f3f9cdb7332b70e2c768f17f1046fa051f44fe744a0a56ae0dde3f5124a417c20e38c66ff18727951

Download Submit
memory/1596-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/1596-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/1596-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4768-25-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download