b5e10d0c4e878f0626a910fa287be2793d9b6210f6b7937e6c2e1a35f4d3a5ed

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
24/08/2024, 07:10

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General

Target

2024-08-24_87ef45a108a1a69670a43235ef08433c_cryptolocker.exe
Size

56KB
MD5

87ef45a108a1a69670a43235ef08433c
SHA1

cfbe1b175004a89297034556776299a4207e9e63
SHA256

b5e10d0c4e878f0626a910fa287be2793d9b6210f6b7937e6c2e1a35f4d3a5ed
SHA512

aa11370059a41172f69650707b0eb61421515734257172f179a411c30ea785ce126b28fed966dc975711b010b50458262f7ad219e954957fc47a0f57c902435c
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAIX6Ehc:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7b

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2448	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2488	2024-08-24_87ef45a108a1a69670a43235ef08433c_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	hurok.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-24_87ef45a108a1a69670a43235ef08433c_cryptolocker.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2488	2024-08-24_87ef45a108a1a69670a43235ef08433c_cryptolocker.exe
2448	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2488 wrote to memory of 2448	2488	2024-08-24_87ef45a108a1a69670a43235ef08433c_cryptolocker.exe	31
PID 2488 wrote to memory of 2448	2488	2024-08-24_87ef45a108a1a69670a43235ef08433c_cryptolocker.exe	31
PID 2488 wrote to memory of 2448	2488	2024-08-24_87ef45a108a1a69670a43235ef08433c_cryptolocker.exe	31
PID 2488 wrote to memory of 2448	2488	2024-08-24_87ef45a108a1a69670a43235ef08433c_cryptolocker.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-08-24_87ef45a108a1a69670a43235ef08433c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-24_87ef45a108a1a69670a43235ef08433c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2488
- 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:2448

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

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

Filesize
56KB

MD5
0e8eaa15640d7f9c2f87ab5fa67d25b7

SHA1
5e637726fc730f96a6a6437804feeef1fee6da1b

SHA256
005c5be21c44d8a2fc626dcfe6f6e17afecb96dc900e79094d51fc112c808fe7

SHA512
d154e02340de0051f6ba0c7ca60f20d83ebfffed299a97fcc51c02e3008734e74535d5bafd46fb025b21b2b352a3ae456589ad764ade847f4fe36ea12a88a2c2

Download Submit
memory/2448-23-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2488-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2488-1-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2488-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download