f2a96d73409803065911f88a4ac9311f7e81f7b41d9d9a2a46705cd24f10c7d5

Analysis

max time kernel
150s
max time network
159s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21-11-2024 07:37

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General

Target

2024-11-21_816b2e5ef81139e47864599cafcc0673_cryptolocker.exe
Size

46KB
MD5

816b2e5ef81139e47864599cafcc0673
SHA1

c44efa2231bf020b38405d372721bde90f7a75c2
SHA256

f2a96d73409803065911f88a4ac9311f7e81f7b41d9d9a2a46705cd24f10c7d5
SHA512

a0e59e700d1297d2664a55673e737be102ae9085fdf0d167e4c55db8cfec0e51333b1e20a531ba9edfdc53e8df97d5361df6a31c64b0c6628a820e1ec8a63ff0
SSDEEP

384:bm74uGLLQRcsdeQ72ngEr4K7YmE8jb0nrlwfjDUk31:bm74zYcgT/EkM0ryfjd31

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

Processes:

2024-11-21_816b2e5ef81139e47864599cafcc0673_cryptolocker.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	2024-11-21_816b2e5ef81139e47864599cafcc0673_cryptolocker.exe

Executes dropped EXE 1 IoCs

Processes:

hasfj.exe

pid	Process
336	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

Processes:

2024-11-21_816b2e5ef81139e47864599cafcc0673_cryptolocker.exehasfj.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-21_816b2e5ef81139e47864599cafcc0673_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hasfj.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-11-21_816b2e5ef81139e47864599cafcc0673_cryptolocker.exe

description	pid	Process	procid_target
PID 1936 wrote to memory of 336	1936	2024-11-21_816b2e5ef81139e47864599cafcc0673_cryptolocker.exe	82
PID 1936 wrote to memory of 336	1936	2024-11-21_816b2e5ef81139e47864599cafcc0673_cryptolocker.exe	82
PID 1936 wrote to memory of 336	1936	2024-11-21_816b2e5ef81139e47864599cafcc0673_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-11-21_816b2e5ef81139e47864599cafcc0673_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-21_816b2e5ef81139e47864599cafcc0673_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1936
- 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:336

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
46KB

MD5
1c2c21fdce5dff6bd09bbca2da697036

SHA1
ef298bde2f7e906b1717c90d151174cf3a4b0b45

SHA256
d55c6d46756d49e75dc1fb17e1ca53f25d52ebb497bdf380cfdbf62000af5120

SHA512
1f50d3296efc1e381bc3500e77add41502ce1b51b91ba0828126015c0a72ff30fad70275acce1c22be52a728c6d75216295521269964f0b100574c30bb96cae8

Download Submit
memory/336-20-0x0000000003000000-0x0000000003006000-memory.dmp

Filesize
24KB

Download
memory/336-19-0x0000000002010000-0x0000000002016000-memory.dmp

Filesize
24KB

Download
memory/336-26-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/1936-0-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/1936-1-0x0000000002340000-0x0000000002346000-memory.dmp

Filesize
24KB

Download
memory/1936-2-0x0000000002340000-0x0000000002346000-memory.dmp

Filesize
24KB

Download
memory/1936-3-0x0000000002370000-0x0000000002376000-memory.dmp

Filesize
24KB

Download
memory/1936-17-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download