2099df652d960fcdf57e90c4fb99d4cbbccb5c9cc9dbf242e06c1064eccc6462

Analysis

max time kernel
148s
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
10/10/2024, 05:11

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General

Target

2024-10-10_8da736c7e5be216570d887defa8f872f_cryptolocker.exe
Size

37KB
MD5

8da736c7e5be216570d887defa8f872f
SHA1

bff74c724a66d9ce3cf51d0cac982bf0076b9f52
SHA256

2099df652d960fcdf57e90c4fb99d4cbbccb5c9cc9dbf242e06c1064eccc6462
SHA512

b20ee079cf48659f8a4eddfb8fbfbbc42e25323e58689cd4f124f130fe8bbfdcb949b795ad34fad08999a688d05e20f6a00c637ba4dcc6a4e74988fd202fa28a
SSDEEP

768:b7o/2n1TCraU6GD1a4X0WcO+wMVm+slAMd:bc/y2lkF0+BS

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	2024-10-10_8da736c7e5be216570d887defa8f872f_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4968	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	2024-10-10_8da736c7e5be216570d887defa8f872f_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 3880 wrote to memory of 4968	3880	2024-10-10_8da736c7e5be216570d887defa8f872f_cryptolocker.exe	86
PID 3880 wrote to memory of 4968	3880	2024-10-10_8da736c7e5be216570d887defa8f872f_cryptolocker.exe	86
PID 3880 wrote to memory of 4968	3880	2024-10-10_8da736c7e5be216570d887defa8f872f_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-10-10_8da736c7e5be216570d887defa8f872f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-10_8da736c7e5be216570d887defa8f872f_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3880
- 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:4968

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
37KB

MD5
76b89aa545ae3debd04211a366f859e3

SHA1
779290b8c5defa5cf3c0634de80f2402a121c0f5

SHA256
748a1f3cf30c47ce9a7476bd8aae06ace34774bda328f154f6d8b6c320ef0674

SHA512
10aea0d5d3f6b67982bdc02f25f351f6f010546285b2b46577ae3d9c424b8f109fed8feeb8bd40ab2eea32483f8dcb69e35216da9f32036a265dbadbeb91c056

Download Submit
memory/3880-0-0x0000000000530000-0x0000000000536000-memory.dmp

Filesize
24KB

Download
memory/3880-1-0x0000000000530000-0x0000000000536000-memory.dmp

Filesize
24KB

Download
memory/3880-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4968-25-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download