fd8a1772396ed65df582ac82f233cd292ad9da90364cd3c843174128a69381cb

Analysis

max time kernel
150s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
09/09/2024, 20:27

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General

Target

2024-09-09_f5d0863206214a846a56f6902d2700a1_cryptolocker.exe
Size

45KB
MD5

f5d0863206214a846a56f6902d2700a1
SHA1

af6197cc9211ccf09ad3bf8e25c23b8f488a4b39
SHA256

fd8a1772396ed65df582ac82f233cd292ad9da90364cd3c843174128a69381cb
SHA512

c3da326aaaa682b638b3395074d14a78142dbd31ed114c5261f472fba71af268dc12f05d40c62992180e9f6ea6e86f907e6280ec1d0ae5572b934502e9e903e4
SSDEEP

768:bao/2n1TCraU6GD1a4X1XOQ69zbjlAAX5e9zz:bF/y2lFizbR9Xwzz

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-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	2024-09-09_f5d0863206214a846a56f6902d2700a1_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3588	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	2024-09-09_f5d0863206214a846a56f6902d2700a1_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 2792 wrote to memory of 3588	2792	2024-09-09_f5d0863206214a846a56f6902d2700a1_cryptolocker.exe	84
PID 2792 wrote to memory of 3588	2792	2024-09-09_f5d0863206214a846a56f6902d2700a1_cryptolocker.exe	84
PID 2792 wrote to memory of 3588	2792	2024-09-09_f5d0863206214a846a56f6902d2700a1_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-09-09_f5d0863206214a846a56f6902d2700a1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-09_f5d0863206214a846a56f6902d2700a1_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2792
- 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:3588

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
45KB

MD5
39506a99dfaaff0f2ff146c7218f44d7

SHA1
92ad40cd7f1d522ec6c8c99487f7dcca00178b1b

SHA256
5fb135cbacb88de4d2d10fd709767bc9f7050ff964e267335d95ccdf0f30077c

SHA512
2096fdc090b3787b65a62b19f687a7554006ff2e37a84a224b2475bc604860ace4cf5406bbf235c1fabd7755df29315654a229a50ff0342098bbf825dada80f1

Download Submit
memory/2792-0-0x0000000002340000-0x0000000002346000-memory.dmp

Filesize
24KB

Download
memory/2792-1-0x0000000002340000-0x0000000002346000-memory.dmp

Filesize
24KB

Download
memory/2792-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3588-25-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download