217e54670934b8bb432d12ca8ba263f3b8f44c6ba2577b84a2f87f3171f5ac45

Analysis

max time kernel
95s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02/09/2024, 13:48

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General

Target

2024-09-02_7220fa87611c14e0667488088615f989_cryptolocker.exe
Size

49KB
MD5

7220fa87611c14e0667488088615f989
SHA1

348d36ec98f702521d3b74774ba2b5c854e769eb
SHA256

217e54670934b8bb432d12ca8ba263f3b8f44c6ba2577b84a2f87f3171f5ac45
SHA512

4de4ffef4ee5000fd7cf1fd42e79f29fda11853a9338662c5e457f11c5193c2530119d4953a044dd13ef9eb74e2c438cf852cc1a8b189125ca2e420948c22cea
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1x5hjatshn:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7K

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-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	hurok.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	2024-09-02_7220fa87611c14e0667488088615f989_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
436	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	2024-09-02_7220fa87611c14e0667488088615f989_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 4876 wrote to memory of 436	4876	2024-09-02_7220fa87611c14e0667488088615f989_cryptolocker.exe	85
PID 4876 wrote to memory of 436	4876	2024-09-02_7220fa87611c14e0667488088615f989_cryptolocker.exe	85
PID 4876 wrote to memory of 436	4876	2024-09-02_7220fa87611c14e0667488088615f989_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-09-02_7220fa87611c14e0667488088615f989_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-02_7220fa87611c14e0667488088615f989_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4876
- 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:436

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
49KB

MD5
29e3d0d5239fbb816347c35f19eb6166

SHA1
0a1badddd07d75bcd999cbea592aee44d341e304

SHA256
e1f80920750ba60245826d11642f7fe9dd9391b01a934e513d86a61a7fc95aba

SHA512
9cc7f20cdf5d43d41ebea9ce0feea374b864d3ab026426934fca1be6e455fbbf81ce1690fd9572578f30899e9401cbac10e2c02a2b99548ddd98121718dea4e8

Download Submit
memory/436-25-0x0000000000570000-0x0000000000576000-memory.dmp

Filesize
24KB

Download
memory/4876-0-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/4876-1-0x0000000002200000-0x0000000002206000-memory.dmp

Filesize
24KB

Download
memory/4876-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download