ab4b244b4049484e4bd6b18de5df7eefa270d2a7c5e0e2f3e23c0714179d0b90

Analysis

max time kernel
150s
max time network
151s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21-11-2024 07:27

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General

Target

2024-11-21_327d809c35ae24e6e1113f0470e2a036_cryptolocker.exe
Size

50KB
MD5

327d809c35ae24e6e1113f0470e2a036
SHA1

6c444d7c04df717ecaaa5c625eb8f9bcf728c7e8
SHA256

ab4b244b4049484e4bd6b18de5df7eefa270d2a7c5e0e2f3e23c0714179d0b90
SHA512

83e1ad2e358ae40d424de4a9d21e1f8108f3e4a17dd8edecdf4b9117e1417d1c7a9c67c3b52eec965b54ee3cc7543a9903d86ef70ee296ddab5b7f9f311f6957
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1x5hjatshMY:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7u

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

hurok.exe

pid process

2920 hurok.exe
Loads dropped DLL 1 IoCs

Processes:

2024-11-21_327d809c35ae24e6e1113f0470e2a036_cryptolocker.exe

pid process

2112 2024-11-21_327d809c35ae24e6e1113f0470e2a036_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2920	hurok.exe

pid	process
2112	2024-11-21_327d809c35ae24e6e1113f0470e2a036_cryptolocker.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:

2024-11-21_327d809c35ae24e6e1113f0470e2a036_cryptolocker.exehurok.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-21_327d809c35ae24e6e1113f0470e2a036_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hurok.exe

Suspicious use of UnmapMainImage 2 IoCs

Processes:

2024-11-21_327d809c35ae24e6e1113f0470e2a036_cryptolocker.exehurok.exe

pid process

2112 2024-11-21_327d809c35ae24e6e1113f0470e2a036_cryptolocker.exe
2920 hurok.exe

pid	process
2112	2024-11-21_327d809c35ae24e6e1113f0470e2a036_cryptolocker.exe
2920	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-11-21_327d809c35ae24e6e1113f0470e2a036_cryptolocker.exe

description	pid	process	target process
PID 2112 wrote to memory of 2920	2112	2024-11-21_327d809c35ae24e6e1113f0470e2a036_cryptolocker.exe	hurok.exe
PID 2112 wrote to memory of 2920	2112	2024-11-21_327d809c35ae24e6e1113f0470e2a036_cryptolocker.exe	hurok.exe
PID 2112 wrote to memory of 2920	2112	2024-11-21_327d809c35ae24e6e1113f0470e2a036_cryptolocker.exe	hurok.exe
PID 2112 wrote to memory of 2920	2112	2024-11-21_327d809c35ae24e6e1113f0470e2a036_cryptolocker.exe	hurok.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-21_327d809c35ae24e6e1113f0470e2a036_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-21_327d809c35ae24e6e1113f0470e2a036_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2112
- 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:2920

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\hurok.exe

Filesize
50KB

MD5
173b5fe08f55e8164b42918f746771d8

SHA1
da3b2bf6a7d6256f096a7f9b5759da190e30385c

SHA256
d57a02a489952e4eafe7232921d9cb88e5b3bf9e0991b62afcf94262992f2cbe

SHA512
4a80635c6777cb1e7b4401491ccd4279b622ed1881f580677a0cf944915ffb3487d48c4539dfa2817d1d10a1631ff99cc6a4bbd1baff79f60a714046c4206e53

Download Submit
memory/2112-8-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2112-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2112-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download