8eaf4053cfc3932702a510c645d7be83a14228c731d9da9a23d77fd3fc5715f9

Analysis

max time kernel
155s
max time network
185s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
12/01/2024, 06:05

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General

Target

2024-01-11_b9ab2ffd5bae576fb74e709a8389645a_cryptolocker.exe
Size

43KB
MD5

b9ab2ffd5bae576fb74e709a8389645a
SHA1

4165cdae0f054cfa6ab819859718accbab36b0d4
SHA256

8eaf4053cfc3932702a510c645d7be83a14228c731d9da9a23d77fd3fc5715f9
SHA512

9a7492875f02511c819952e5562e88980c9bdf49d4600d98e814b459076f27232ffe1213367479e56bb180e2af14b0a4cae7ce771c4cc95a3ebd016023459286
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGpebVIYLHA3Kx8:o1KhxqwtdgI2MyzNORQtOflIwoHNV2Xt

Score

7^/10

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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	2024-01-11_b9ab2ffd5bae576fb74e709a8389645a_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
1572	hurok.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3532 wrote to memory of 1572	3532	2024-01-11_b9ab2ffd5bae576fb74e709a8389645a_cryptolocker.exe	95
PID 3532 wrote to memory of 1572	3532	2024-01-11_b9ab2ffd5bae576fb74e709a8389645a_cryptolocker.exe	95
PID 3532 wrote to memory of 1572	3532	2024-01-11_b9ab2ffd5bae576fb74e709a8389645a_cryptolocker.exe	95

C:\Users\Admin\AppData\Local\Temp\2024-01-11_b9ab2ffd5bae576fb74e709a8389645a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-11_b9ab2ffd5bae576fb74e709a8389645a_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3532
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:1572

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
43KB

MD5
b5207466ca0062e71035794b3eed41b9

SHA1
863b89ac5b9417b5d94b7ac111357f769a20fd65

SHA256
a21c99588a829ff92341d696aa4cf07bb16312c4a92bf341d26861f22db271ac

SHA512
969ab49c035575c6aaa6cbcd2dc1cdeb95cfc684cf61bb05af52c7939221042275a89e31c1e7d7bfcaa9dcec236d8915813b69efcbb2fb50b435e77736eb9048

Download Submit
memory/1572-22-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/3532-0-0x00000000022F0000-0x00000000022F6000-memory.dmp

Filesize
24KB

Download
memory/3532-1-0x00000000022F0000-0x00000000022F6000-memory.dmp

Filesize
24KB

Download
memory/3532-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download