74c447802771d344f1b09a8697d198e9ef724cfd948efdada6f4da5c700c54b5

Analysis

max time kernel
149s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
17/10/2024, 20:55

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General

Target

2024-10-17_fd303eb93eeeca404222a4e79a5ebd08_cryptolocker.exe
Size

41KB
MD5

fd303eb93eeeca404222a4e79a5ebd08
SHA1

801ac331a087a0e440536665567e4b9af1b5c287
SHA256

74c447802771d344f1b09a8697d198e9ef724cfd948efdada6f4da5c700c54b5
SHA512

0603aa45ea255d85c1373450b982c4863b0f68ed8a90f9c56467c006d75cdda7ec74dfcc4d033c5cbd2202460ef87cf9064c5a7d39cb8a8867bce91a65d808a1
SSDEEP

768:b7o/2n1TCraU6GD1a4Xcn62TUdcuQlqJ51mwuS:bc/y2lm6Y0AqJ51mwuS

Score

7^/10

discovery

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	2024-10-17_fd303eb93eeeca404222a4e79a5ebd08_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2408	rewok.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	2024-10-17_fd303eb93eeeca404222a4e79a5ebd08_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rewok.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1648 wrote to memory of 2408	1648	2024-10-17_fd303eb93eeeca404222a4e79a5ebd08_cryptolocker.exe	84
PID 1648 wrote to memory of 2408	1648	2024-10-17_fd303eb93eeeca404222a4e79a5ebd08_cryptolocker.exe	84
PID 1648 wrote to memory of 2408	1648	2024-10-17_fd303eb93eeeca404222a4e79a5ebd08_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-10-17_fd303eb93eeeca404222a4e79a5ebd08_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-17_fd303eb93eeeca404222a4e79a5ebd08_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1648
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2408

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

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Downloads

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

Filesize
41KB

MD5
2896f83fa524d91cc1fd760cc13b55ce

SHA1
d73242f43a82118c6202df140cb9a92f5dcd60cf

SHA256
a0025f317964e2c7612e41aedb3af2d9f28a3d153ed2920943f831e506ba80e5

SHA512
8e6a21f1163e2f5b277a03e038dd0c37a3647559b446f6c91d4ae16d5ee1caf7de7e89774f002039647e397de87e2942bea0dc2af10a3e4742d5d586ea902c3d

Download Submit
memory/1648-0-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/1648-1-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/1648-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2408-25-0x0000000002120000-0x0000000002126000-memory.dmp

Filesize
24KB

Download