b682115a984c1d4cc50b4622e994b2c93c919d009a882c2e4ce92eb2d7a0b184

Analysis

max time kernel
150s
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
26/08/2024, 00:39

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General

Target

2024-08-26_b2bc0d944cbc5745c9cbdd9e9b2fc1c2_cryptolocker.exe
Size

35KB
MD5

b2bc0d944cbc5745c9cbdd9e9b2fc1c2
SHA1

895732417de5929a2e232c612193c7530d048251
SHA256

b682115a984c1d4cc50b4622e994b2c93c919d009a882c2e4ce92eb2d7a0b184
SHA512

1d06f648f7684e6299b8b28361dcdabb2e0e773ce1ad550bf0043ca79a8c191dc64601fa90001274dd42335315e5dae9d457684cf064536b5ce201450f691a5b
SSDEEP

384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGXvJF3SU:bG74zYcgT/Ekd0ryfjkbCU

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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	2024-08-26_b2bc0d944cbc5745c9cbdd9e9b2fc1c2_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4696	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	2024-08-26_b2bc0d944cbc5745c9cbdd9e9b2fc1c2_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 4596 wrote to memory of 4696	4596	2024-08-26_b2bc0d944cbc5745c9cbdd9e9b2fc1c2_cryptolocker.exe	84
PID 4596 wrote to memory of 4696	4596	2024-08-26_b2bc0d944cbc5745c9cbdd9e9b2fc1c2_cryptolocker.exe	84
PID 4596 wrote to memory of 4696	4596	2024-08-26_b2bc0d944cbc5745c9cbdd9e9b2fc1c2_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-08-26_b2bc0d944cbc5745c9cbdd9e9b2fc1c2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-26_b2bc0d944cbc5745c9cbdd9e9b2fc1c2_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4596
- 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:4696

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
35KB

MD5
693f77ee1f811b5670f7e3b85dd6fa49

SHA1
42620c4ba155dca36f692d3428dd8bd0d6014f62

SHA256
caf8203f8497b87a04e494e6c0473ddaeeb1f82561cdf0f7d297adc04052ca8f

SHA512
dbcf6282e408129f1bb55ac562e7a74fceb39b06e4f0f2e6d55cd140e0586e520006e3f233c098c5d4dfed6cd137e1fef4ff482e74d67db111e8b976a673001d

Download Submit
memory/4596-0-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/4596-1-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/4596-2-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/4596-3-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/4596-17-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/4696-19-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/4696-25-0x0000000002010000-0x0000000002016000-memory.dmp

Filesize
24KB

Download
memory/4696-26-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download