752a4b35a273576aeffded0597a22accf0d0636db165d8dd9b942faff1273aa1

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
09/09/2024, 02:28

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General

Target

2024-09-09_0fd9465f016009f06fac5bc01d60dee2_cryptolocker.exe
Size

56KB
MD5

0fd9465f016009f06fac5bc01d60dee2
SHA1

3505fffb2c89f89005dfd285a2e0d1d2a95e8f92
SHA256

752a4b35a273576aeffded0597a22accf0d0636db165d8dd9b942faff1273aa1
SHA512

3deaa11f3c7cd7838bd28fd70beab0423cf6190b94b4eb49801cd4bb0e929141aa9cdad2a1f819eab6559ca315fb93797f254a50fbc3b9f6057208fb22a08b9a
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAIX6Ex10:aq7tdgI2MyzNORQtOflIwoHNV2XBFV75

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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	hurok.exe
Key value queried	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	2024-09-09_0fd9465f016009f06fac5bc01d60dee2_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4424	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	hurok.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-09_0fd9465f016009f06fac5bc01d60dee2_cryptolocker.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3988 wrote to memory of 4424	3988	2024-09-09_0fd9465f016009f06fac5bc01d60dee2_cryptolocker.exe	85
PID 3988 wrote to memory of 4424	3988	2024-09-09_0fd9465f016009f06fac5bc01d60dee2_cryptolocker.exe	85
PID 3988 wrote to memory of 4424	3988	2024-09-09_0fd9465f016009f06fac5bc01d60dee2_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-09-09_0fd9465f016009f06fac5bc01d60dee2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-09_0fd9465f016009f06fac5bc01d60dee2_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3988
- 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:4424

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
56KB

MD5
9ff0da90d1e80880e91ac1a52af4141a

SHA1
c2af1ee775fd489256688bae52327f291f6b8975

SHA256
2741346dd523465eda9a7583b1fc590845b4792c4a916e00a806058a22df000a

SHA512
872e82da357a4dad1801532872aae48a3854ab6724f07dd02b2e5a3d4db184f137e9c6dcb20419e948d28ee5e5be6fedaff0c1f9666a64097a9a2d6a902409fc

Download Submit
memory/3988-0-0x0000000002300000-0x0000000002306000-memory.dmp

Filesize
24KB

Download
memory/3988-1-0x0000000002300000-0x0000000002306000-memory.dmp

Filesize
24KB

Download
memory/3988-3-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4424-25-0x0000000001EF0000-0x0000000001EF6000-memory.dmp

Filesize
24KB

Download