ddf984042721c4dfbcfc6be76917963487cac908f8662e4d62b0802175858790

Analysis

max time kernel
150s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05-09-2024 12:16

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General

Target

2024-09-05_da9a41384f2dd6b74192c3f1b53b0cd3_cryptolocker.exe
Size

35KB
MD5

da9a41384f2dd6b74192c3f1b53b0cd3
SHA1

5013cb097bfd97d704eefd4fcb31fa3aeae1043d
SHA256

ddf984042721c4dfbcfc6be76917963487cac908f8662e4d62b0802175858790
SHA512

13602e31ac0edffd5cbc2436807e78120508cff88a0fe6b97ec101874ed129307fac4c141e78698425e98d6bef80c829b01cc6b39f506877b322457b70bf4fa7
SSDEEP

384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGXvJF3SF:bG74zYcgT/Ekd0ryfjkbCF

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	2024-09-05_da9a41384f2dd6b74192c3f1b53b0cd3_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
624	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	2024-09-05_da9a41384f2dd6b74192c3f1b53b0cd3_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 936 wrote to memory of 624	936	2024-09-05_da9a41384f2dd6b74192c3f1b53b0cd3_cryptolocker.exe	84
PID 936 wrote to memory of 624	936	2024-09-05_da9a41384f2dd6b74192c3f1b53b0cd3_cryptolocker.exe	84
PID 936 wrote to memory of 624	936	2024-09-05_da9a41384f2dd6b74192c3f1b53b0cd3_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-09-05_da9a41384f2dd6b74192c3f1b53b0cd3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-05_da9a41384f2dd6b74192c3f1b53b0cd3_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:936
- 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:624

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
4f1c634cb09a71e91197d77a0df0ed01

SHA1
5271a63f31c579fda9dca14b457f946ad00b088e

SHA256
40ec94363716f48588dd233f2968e6a9dc5a8ea627056829fd49ca4d87a81a55

SHA512
db0d4e9b4dd1cb9b642e12b22954009aeaef05249ea95254ed7721d91bc5d4ef6f370a960f8e63d54b195ffbc9dad320b1977302177a2bab2a3fd28e7fcb00bf

Download Submit
memory/624-25-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/624-26-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/936-0-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/936-1-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/936-2-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/936-3-0x0000000003000000-0x0000000003006000-memory.dmp

Filesize
24KB

Download
memory/936-17-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download