b1f66c7d062a0a11ccef4756ea1ddecff984a6b38331b8108d2b9c96bc737516

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
04/10/2024, 04:29

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General

Target

2024-10-04_b4a2ce6cda3458021ba067f9d122f9a6_cryptolocker.exe
Size

69KB
MD5

b4a2ce6cda3458021ba067f9d122f9a6
SHA1

3fddb1b8434533fa2fd09abc31072dcfdc8e92ab
SHA256

b1f66c7d062a0a11ccef4756ea1ddecff984a6b38331b8108d2b9c96bc737516
SHA512

0ee1c760e8c76689d88d9da423a6980f90c4ae9b32ad3dc49bd21ced87bdf47ace74dc48b99f95ad384e9afa17b354444f0a10f1497b18493c93368a5f94f713
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF299N2Ur:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7P

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2632	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
1760	2024-10-04_b4a2ce6cda3458021ba067f9d122f9a6_cryptolocker.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	2024-10-04_b4a2ce6cda3458021ba067f9d122f9a6_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hurok.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1760	2024-10-04_b4a2ce6cda3458021ba067f9d122f9a6_cryptolocker.exe
2632	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1760 wrote to memory of 2632	1760	2024-10-04_b4a2ce6cda3458021ba067f9d122f9a6_cryptolocker.exe	30
PID 1760 wrote to memory of 2632	1760	2024-10-04_b4a2ce6cda3458021ba067f9d122f9a6_cryptolocker.exe	30
PID 1760 wrote to memory of 2632	1760	2024-10-04_b4a2ce6cda3458021ba067f9d122f9a6_cryptolocker.exe	30
PID 1760 wrote to memory of 2632	1760	2024-10-04_b4a2ce6cda3458021ba067f9d122f9a6_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-04_b4a2ce6cda3458021ba067f9d122f9a6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-04_b4a2ce6cda3458021ba067f9d122f9a6_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1760
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of UnmapMainImage
  PID:2632

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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
ba4a38da4fd609907cab131de7f35c1b

SHA1
7abe68a006f44278f0fa381bf388f32ae0e5ae7f

SHA256
9ed0724cde5e40d36400c7a9b136ed4c9bdd4fb2b7142044bd33c822bac10fba

SHA512
25939e56cf7b5892539c8cf67f99a5832188a7f1afb3d55c81d53ba587e2aa1d875a3c0a7921557e6d15b78340f9da4b0964654626f0f8e9dc484e7cbd538715

Download Submit
memory/1760-0-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/1760-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1760-8-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2632-23-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download