ba36a022eb4976d8cf84bcfb7ae1e786d6e41665d3b4a66f4a8fc108bb417a98

Analysis

max time kernel
138s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
31-10-2024 08:16

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General

Target

2024-10-31_f4e891c48a415f94ff23b27a9d0fe73c_cryptolocker.exe
Size

69KB
MD5

f4e891c48a415f94ff23b27a9d0fe73c
SHA1

febd48803dc743f84a96b08e614e155b20df520d
SHA256

ba36a022eb4976d8cf84bcfb7ae1e786d6e41665d3b4a66f4a8fc108bb417a98
SHA512

8de3afb15cd3fa611dfbff70890225a98a96cb3d9d8e900a256caa301977667f43f21d3815b7ca2102396876b0d053453684a4e8fefbbb32c75a616e87677e44
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF293vaRLEa:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7S

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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	2024-10-31_f4e891c48a415f94ff23b27a9d0fe73c_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
1840	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	2024-10-31_f4e891c48a415f94ff23b27a9d0fe73c_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 4428 wrote to memory of 1840	4428	2024-10-31_f4e891c48a415f94ff23b27a9d0fe73c_cryptolocker.exe	84
PID 4428 wrote to memory of 1840	4428	2024-10-31_f4e891c48a415f94ff23b27a9d0fe73c_cryptolocker.exe	84
PID 4428 wrote to memory of 1840	4428	2024-10-31_f4e891c48a415f94ff23b27a9d0fe73c_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-10-31_f4e891c48a415f94ff23b27a9d0fe73c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-31_f4e891c48a415f94ff23b27a9d0fe73c_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4428
- 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:1840

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
69KB

MD5
c24ca4e112f1c6f6c914aa729636cd80

SHA1
8168fcd721142d30487cb0afd9f1312c81031f90

SHA256
d87f5d1eba2bab7f90032c1c78b04913f90d73f6b465e6b0ccb31c70c6a463a4

SHA512
cd0d7ee3f8e776d1addbf70ced7f39fd5e51b84515ac7495b606b6664caa5d086e44d01c21c83470befd9d44f45cb2fc9fa3620dbf8ec5beaf2a4e706d624c9a

Download Submit
memory/1840-19-0x0000000001FC0000-0x0000000001FC6000-memory.dmp

Filesize
24KB

Download
memory/4428-0-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/4428-1-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/4428-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download