97ec04b51a8774b0dee06e77ef2332723ec6dcac13d51916f0ce8dc5acd3b835

Analysis

max time kernel
90s
max time network
149s
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 07:38

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General

Target

2024-11-21_83d25de31177deb7de7dab5631d1aec2_cryptolocker.exe
Size

40KB
MD5

83d25de31177deb7de7dab5631d1aec2
SHA1

823801004892bcfecb2fb3a18460816c9589ec79
SHA256

97ec04b51a8774b0dee06e77ef2332723ec6dcac13d51916f0ce8dc5acd3b835
SHA512

f8bddf2e8e489106dce19b9798297a964ec8ee09830a88769b776aeb5a5646efded2881e2855b20197e7e85fd385883250e8258e5c38e756f3f7ea8934c1dd5c
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGp/YIm7wm0UpaF:o1KhxqwtdgI2MyzNORQtOflIwoHNV2Xp

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

Processes:

2024-11-21_83d25de31177deb7de7dab5631d1aec2_cryptolocker.exehurok.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	2024-11-21_83d25de31177deb7de7dab5631d1aec2_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

Processes:

hurok.exe

pid process

3484 hurok.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
3484	hurok.exe

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_83d25de31177deb7de7dab5631d1aec2_cryptolocker.exehurok.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-21_83d25de31177deb7de7dab5631d1aec2_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hurok.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-11-21_83d25de31177deb7de7dab5631d1aec2_cryptolocker.exe

description	pid	process	target process
PID 3912 wrote to memory of 3484	3912	2024-11-21_83d25de31177deb7de7dab5631d1aec2_cryptolocker.exe	hurok.exe
PID 3912 wrote to memory of 3484	3912	2024-11-21_83d25de31177deb7de7dab5631d1aec2_cryptolocker.exe	hurok.exe
PID 3912 wrote to memory of 3484	3912	2024-11-21_83d25de31177deb7de7dab5631d1aec2_cryptolocker.exe	hurok.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-21_83d25de31177deb7de7dab5631d1aec2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-21_83d25de31177deb7de7dab5631d1aec2_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3912
- 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:3484

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\hurok.exe

Filesize
40KB

MD5
ac7f3004986490453a50767dd0104ade

SHA1
1337bd8abaaa90ab0520451d6099eab17b0490d0

SHA256
bfd54837e8bbd774f47d7f0987bbba5bc12747664dbe830d00cc1ab08d8a1ad7

SHA512
5aec8b59e945b0a8548e142ea0a7928e1841e8853538e018fd5c500878bbc2b9b94af4d49e63bbc9562e304ce92aafbb35a549146a35a092a9c7807e9475a6cc

Download Submit
memory/3484-19-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/3912-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3912-1-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/3912-0-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download