4fe93cc18b9fea033675cdf940093874cf76edde5165e1466572250d45e66dc5

Analysis

max time kernel
135s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02-11-2024 06:30

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General

Target

2024-11-02_c5bde157b84f95981f953b0ee3a5fb56_cryptolocker.exe
Size

68KB
MD5

c5bde157b84f95981f953b0ee3a5fb56
SHA1

f281c5533e0ff9828691b81eca2746ac87c08d28
SHA256

4fe93cc18b9fea033675cdf940093874cf76edde5165e1466572250d45e66dc5
SHA512

eb342ed2f6af329f3f839fad74a5e1f79c6cd04f9c50b60b769867838d59b6b721dfe51dc07791ef394997bd8c8ea8c5636edc0563f9cec22c5d033fdc0447e0
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF293vaRLEK: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

Processes:

hurok.exe2024-11-02_c5bde157b84f95981f953b0ee3a5fb56_cryptolocker.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	hurok.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	2024-11-02_c5bde157b84f95981f953b0ee3a5fb56_cryptolocker.exe

Executes dropped EXE 1 IoCs

Processes:

hurok.exe

pid process

2724 hurok.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2724	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:

hurok.exe2024-11-02_c5bde157b84f95981f953b0ee3a5fb56_cryptolocker.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hurok.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-02_c5bde157b84f95981f953b0ee3a5fb56_cryptolocker.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-11-02_c5bde157b84f95981f953b0ee3a5fb56_cryptolocker.exe

description	pid	process	target process
PID 4804 wrote to memory of 2724	4804	2024-11-02_c5bde157b84f95981f953b0ee3a5fb56_cryptolocker.exe	hurok.exe
PID 4804 wrote to memory of 2724	4804	2024-11-02_c5bde157b84f95981f953b0ee3a5fb56_cryptolocker.exe	hurok.exe
PID 4804 wrote to memory of 2724	4804	2024-11-02_c5bde157b84f95981f953b0ee3a5fb56_cryptolocker.exe	hurok.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-02_c5bde157b84f95981f953b0ee3a5fb56_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-02_c5bde157b84f95981f953b0ee3a5fb56_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4804

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:2724

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
68KB

MD5
1aae07fac1a7b16a1857874d93680e51

SHA1
61e5906cf1177cf3d9c072bd55c7bcf525dfc8e5

SHA256
571230763f64336e78d9fb6a6f844a6e9c88d6ff8f6fa584e2e042d2d1731933

SHA512
6a5ae3780f1097a29015b721e1f808dd4bc2915e280d44e6ea3a490cfb9e5562488cff1a214d6a735348926c94e4579504e03b936fb0bf5a2382b39ae9cac20a

Download Submit
memory/2724-25-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/4804-0-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/4804-1-0x00000000005F0000-0x00000000005F6000-memory.dmp

Filesize
24KB

Download
memory/4804-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download