b006f17bad3a7fdacd5ff5d2828e091c674fac98776cddd83c0dc647fdb3cf12

Analysis

max time kernel
95s
max time network
123s
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 12:15

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General

Target

2024-09-05_c3c3fc989538fda47a23982c3af5d321_cryptolocker.exe
Size

68KB
MD5

c3c3fc989538fda47a23982c3af5d321
SHA1

b8a966b02889b5d80ef8366da22ba74249454e74
SHA256

b006f17bad3a7fdacd5ff5d2828e091c674fac98776cddd83c0dc647fdb3cf12
SHA512

297d679023393306920074fa713869b6a83690f7061990165901e2e75246d95b2c82990f705e0078346b4614fdaee5df47678c6b8ca773c38552c8534a5c7a93
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF293vaRLECD:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7u

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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	hurok.exe
Key value queried	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	2024-09-05_c3c3fc989538fda47a23982c3af5d321_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3776	hurok.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_c3c3fc989538fda47a23982c3af5d321_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hurok.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4232 wrote to memory of 3776	4232	2024-09-05_c3c3fc989538fda47a23982c3af5d321_cryptolocker.exe	84
PID 4232 wrote to memory of 3776	4232	2024-09-05_c3c3fc989538fda47a23982c3af5d321_cryptolocker.exe	84
PID 4232 wrote to memory of 3776	4232	2024-09-05_c3c3fc989538fda47a23982c3af5d321_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-09-05_c3c3fc989538fda47a23982c3af5d321_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-05_c3c3fc989538fda47a23982c3af5d321_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4232
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3776

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\hurok.exe

Filesize
68KB

MD5
397857f4c6f1d362836299eb496940e6

SHA1
d5a8a7cff82c1e4a7b7914fdd138b91d5318f202

SHA256
c1adef8deb2d01a91f79c37f360cbc7a393537c47e991b9e9cb17a25d7751051

SHA512
e374687e8dbad211fd4eef46b1b9e1fd46649bb0cb2464964899403a7930ae066a96b86067e2f591c3d6507653cb739e299a2580ee1a7e1a5e0cca965e6a0768

Download Submit
memory/3776-25-0x00000000020D0000-0x00000000020D6000-memory.dmp

Filesize
24KB

Download
memory/4232-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4232-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4232-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download