eb22d669ce545697500ceb825364d3abc80c8939dbc0bcca626f8183ee7002d5

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19-09-2024 05:33

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General

Target

2024-09-19_b8afe17ea902a34b5b89e6bbfc08a5c7_cryptolocker.exe
Size

36KB
MD5

b8afe17ea902a34b5b89e6bbfc08a5c7
SHA1

458a4853e407f5557d89fd6931d1c9b8d1f95c8e
SHA256

eb22d669ce545697500ceb825364d3abc80c8939dbc0bcca626f8183ee7002d5
SHA512

fb06b254f977def734150fe3f7f4fec791473d6eb3a3a0345e71f4e36a6a89c0101741583ad4375ff5634f39b7ae8525505ecf85263077f227d9d7156de2fc03
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzoiM8Nekdvjl9V50invBHQ6N+:bAvJCYOOvbRPDEgXrNekd7l94inZQ6L8

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-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	demka.exe
Key value queried	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	2024-09-19_b8afe17ea902a34b5b89e6bbfc08a5c7_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1716	demka.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	2024-09-19_b8afe17ea902a34b5b89e6bbfc08a5c7_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	demka.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4120 wrote to memory of 1716	4120	2024-09-19_b8afe17ea902a34b5b89e6bbfc08a5c7_cryptolocker.exe	82
PID 4120 wrote to memory of 1716	4120	2024-09-19_b8afe17ea902a34b5b89e6bbfc08a5c7_cryptolocker.exe	82
PID 4120 wrote to memory of 1716	4120	2024-09-19_b8afe17ea902a34b5b89e6bbfc08a5c7_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-09-19_b8afe17ea902a34b5b89e6bbfc08a5c7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_b8afe17ea902a34b5b89e6bbfc08a5c7_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4120
- C:\Users\Admin\AppData\Local\Temp\demka.exe
  "C:\Users\Admin\AppData\Local\Temp\demka.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1716

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\demka.exe

Filesize
37KB

MD5
12541182acf1976089edd4589839ed96

SHA1
a1b59f91158acb56006b4052e8d6dbbe24e0fa8e

SHA256
bc2130e4ec2787fff52403692a557fe8974cd2896f9c025fda98d2627a4951af

SHA512
05a0e148fe8f4dcb338753511342129ec9641ca58c32d86ba2316380d457a2a3d6a50329127746c5c277bca5884b621ed7b9ffa110da175116258ac1af4bcb39

Download Submit
C:\Users\Admin\AppData\Local\Temp\medkem.exe

Filesize
185B

MD5
93fb3e0febc6d2a5c4f9fad5b1463c1a

SHA1
25b5fe26fde5247a66267ac215dc50c05fd42eae

SHA256
63cc808af786ccbbfaa7161beeb8d09557cb71f697af4ef2d1f7df5af60d471a

SHA512
7bb0f600b70c0f6864d285f8c58d850ba7dac9f3f3c323b73c9bc42399a313dae31415a200a28a4a35fec2635579e763c7c05f3631e001967856c3b0562b5d38

Download Submit
memory/1716-19-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/4120-0-0x0000000000530000-0x0000000000536000-memory.dmp

Filesize
24KB

Download
memory/4120-1-0x0000000000530000-0x0000000000536000-memory.dmp

Filesize
24KB

Download
memory/4120-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download