a875b37040f21491a8d65e49f92a156b13f1d14e6c601f79d18188debadcdc5d

Analysis

max time kernel
104s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
21/03/2025, 08:04

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General

Target

2025-03-21_c27dcd15aedc2d37e074bd56575625c1_cryptolocker.exe
Size

61KB
MD5

c27dcd15aedc2d37e074bd56575625c1
SHA1

cdbfba65bf8443781f7422440c2bdc80ca725940
SHA256

a875b37040f21491a8d65e49f92a156b13f1d14e6c601f79d18188debadcdc5d
SHA512

b7b17daefeb321db69e0bb277225b23f2d42abc9f2c6e06e633643a60cba18469544c18ee237b9357580c12a8560f4d9c735098eea01f4fc9087881693eb1400
SSDEEP

768:bYv9g/WItCSsAGmXWhaI9cZnIe9N0hunrknljKrCY1a:bYv9g/xtCSDx6A7f1rksrx1a

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-1-5-21-3920955164-3782810283-1225622749-1000\Control Panel\International\Geo\Nation	2025-03-21_c27dcd15aedc2d37e074bd56575625c1_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3920955164-3782810283-1225622749-1000\Control Panel\International\Geo\Nation	gewos.exe

Executes dropped EXE 1 IoCs

pid	Process
2660	gewos.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	2025-03-21_c27dcd15aedc2d37e074bd56575625c1_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gewos.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5812 wrote to memory of 2660	5812	2025-03-21_c27dcd15aedc2d37e074bd56575625c1_cryptolocker.exe	85
PID 5812 wrote to memory of 2660	5812	2025-03-21_c27dcd15aedc2d37e074bd56575625c1_cryptolocker.exe	85
PID 5812 wrote to memory of 2660	5812	2025-03-21_c27dcd15aedc2d37e074bd56575625c1_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2025-03-21_c27dcd15aedc2d37e074bd56575625c1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2025-03-21_c27dcd15aedc2d37e074bd56575625c1_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5812
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2660

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\gewos.exe

Filesize
61KB

MD5
222166c81b7629186de32ed8d0b8745f

SHA1
519723afe1bfb897ed89c4645705681a38b69899

SHA256
a4082c8d7b1ad2c4e0306224efa803ae0b62e530a02f5a158b4d88cf003d5b9d

SHA512
0a668cf5264f8f694d907b1faff4640d00f83bfb9e727664b09055fd819296d51dee254a947e0d1dfbb09490632cd19983b5a662774229d2deb52c538c5d64ac

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

Filesize
185B

MD5
3ea7614da1c77e333855890317969501

SHA1
822489531beb32e368b61c41880526efc931922a

SHA256
4e7b906cd7fc5af1f1b71212da537b442aa2abd5ccad286ec705b5bed08b40b4

SHA512
21d8d8dbbd94a0ebddb6769162e56d9533c91656fa022a416b0d5a1c217d723ebdd1f8bdee6148a9b72ebe1f9c1ae44df96925b9551b1878b5784da05f7cf69f

Download Submit
memory/2660-25-0x0000000002090000-0x0000000002096000-memory.dmp

Filesize
24KB

Download
memory/5812-0-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download
memory/5812-1-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download
memory/5812-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download