8406f5892213f6739949261d7b77643ef738458fdcbeaecf9d1d0a6ad97fc646

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12-10-2024 04:40

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General

Target

2024-10-12_62f423244b9877a739ee31d83507fdb1_cryptolocker.exe
Size

42KB
MD5

62f423244b9877a739ee31d83507fdb1
SHA1

b411387549431cc0514daf5a0b5ca8a9bcdf04dc
SHA256

8406f5892213f6739949261d7b77643ef738458fdcbeaecf9d1d0a6ad97fc646
SHA512

ad65cd75c9f9bf06cf2d4e6bdebceef713560b2f32ecee253930080ab9b67edf2599ee42962accbd14399be02cb9a6a63568b74c2fac40ae0b7b8e5dba49d5c9
SSDEEP

768:ba74zYcgT/EkdCQgpwXFXSqQXfj0xKoWw:ba6YcA/Xk3wXFXSqAJE

Score

7^/10

discovery upx

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	2024-10-12_62f423244b9877a739ee31d83507fdb1_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4480	hasfj.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4388-0-0x0000000008000000-0x000000000800F000-memory.dmp	upx
behavioral2/files/0x000d000000023bb4-13.dat	upx
behavioral2/memory/4388-17-0x0000000008000000-0x000000000800F000-memory.dmp	upx
behavioral2/memory/4480-26-0x0000000008000000-0x000000000800F000-memory.dmp	upx

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	2024-10-12_62f423244b9877a739ee31d83507fdb1_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hasfj.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4388 wrote to memory of 4480	4388	2024-10-12_62f423244b9877a739ee31d83507fdb1_cryptolocker.exe	85
PID 4388 wrote to memory of 4480	4388	2024-10-12_62f423244b9877a739ee31d83507fdb1_cryptolocker.exe	85
PID 4388 wrote to memory of 4480	4388	2024-10-12_62f423244b9877a739ee31d83507fdb1_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-10-12_62f423244b9877a739ee31d83507fdb1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_62f423244b9877a739ee31d83507fdb1_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4388
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4480

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\hasfj.exe

Filesize
42KB

MD5
b70de0f50d8a8656a86152a4b9369a6c

SHA1
39f1f530befd9f4dff81333db77cb1013b4c064f

SHA256
e1b050e1ed46c3829bde2441744fb6ff2f2042237d9c2a30f8cb28a5cbee8bf2

SHA512
ae66e90e7b6976e9a0ea33a82f462d1f6f618467b13dfe1dbb9e4e324b424015bfa1370ff4dd084b8ce2dadb26fccb663e3f25eb63990805de19b32f78fc989a

Download Submit
memory/4388-0-0x0000000008000000-0x000000000800F000-memory.dmp

Filesize
60KB

Download
memory/4388-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4388-2-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4388-3-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4388-17-0x0000000008000000-0x000000000800F000-memory.dmp

Filesize
60KB

Download
memory/4480-19-0x0000000002ED0000-0x0000000002ED6000-memory.dmp

Filesize
24KB

Download
memory/4480-25-0x00000000020A0000-0x00000000020A6000-memory.dmp

Filesize
24KB

Download
memory/4480-26-0x0000000008000000-0x000000000800F000-memory.dmp

Filesize
60KB

Download