b1e3a22ddb75d88b32985b229f24a2b90a0d395896b89de60cd9e3c7cf406e51

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
12/09/2024, 02:29

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General

Target

2024-09-12_2641b074a05855da01b96cc857ab2092_cryptolocker.exe
Size

44KB
MD5

2641b074a05855da01b96cc857ab2092
SHA1

44a47b11c29b49258eb8d016f0bbda285b5c5c42
SHA256

b1e3a22ddb75d88b32985b229f24a2b90a0d395896b89de60cd9e3c7cf406e51
SHA512

8f7b33618fd0f3e7393835b517f7e607939ae9764e3d0b36b25d0cf1362da5ff7e55d06a11c651cfe12cb9dd60c8978c89a69f719ecd6d6f523a043855bd21db
SSDEEP

384:bm74uGLLQRcsdeQ72ngEr4K7YmE8jb0nrlwfjDUadQuQ:bm74zYcgT/EkM0ryfjPdQd

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	2024-09-12_2641b074a05855da01b96cc857ab2092_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1220	hasfj.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	2024-09-12_2641b074a05855da01b96cc857ab2092_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hasfj.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2276 wrote to memory of 1220	2276	2024-09-12_2641b074a05855da01b96cc857ab2092_cryptolocker.exe	85
PID 2276 wrote to memory of 1220	2276	2024-09-12_2641b074a05855da01b96cc857ab2092_cryptolocker.exe	85
PID 2276 wrote to memory of 1220	2276	2024-09-12_2641b074a05855da01b96cc857ab2092_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-09-12_2641b074a05855da01b96cc857ab2092_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-12_2641b074a05855da01b96cc857ab2092_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2276
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1220

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\hasfj.exe

Filesize
44KB

MD5
1e2bf91bb42009e9508fc453b67f8c54

SHA1
e837ea7bca2ec2c4d4f77c74443f7a4c54ec8ab9

SHA256
9285f297b989870abd655b0c5c30dade21838cedfa99e534d5fc536e7ea9cdbb

SHA512
07467e5a33832f0e2678fbd4943f0cc757a769b966ff92047462383b01ca54fc480fc3a6800b37371452aeed533ad5bbbeb0871a02c026c3b26735e4f6f58930

Download Submit
memory/1220-19-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/1220-25-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/1220-26-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/2276-0-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/2276-1-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/2276-2-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/2276-3-0x0000000003140000-0x0000000003146000-memory.dmp

Filesize
24KB

Download
memory/2276-17-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download