833c779440ff7aa1186013cdc93852db60745799c72720ea61c25670dbeba822

Analysis

max time kernel
134s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
26-08-2024 07:10

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General

Target

2024-08-26_db51f8f3def2116167981f1451fb6264_cryptolocker.exe
Size

54KB
MD5

db51f8f3def2116167981f1451fb6264
SHA1

8ae21d54eaf6559a10f10eb2f453d171448fa183
SHA256

833c779440ff7aa1186013cdc93852db60745799c72720ea61c25670dbeba822
SHA512

660b5449d4dd07b8ff9923eb7fbb4486768d2862f3997a93ae8db24491ae17f5d1dae85f5cea85d3ee66eadaf2cdd5829eec25f9feb8bf08838bc8b05a75d342
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAI4kjmb:aq7tdgI2MyzNORQtOflIwoHNV2XBFV77

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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	2024-08-26_db51f8f3def2116167981f1451fb6264_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
3252	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	2024-08-26_db51f8f3def2116167981f1451fb6264_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hurok.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 712 wrote to memory of 3252	712	2024-08-26_db51f8f3def2116167981f1451fb6264_cryptolocker.exe	84
PID 712 wrote to memory of 3252	712	2024-08-26_db51f8f3def2116167981f1451fb6264_cryptolocker.exe	84
PID 712 wrote to memory of 3252	712	2024-08-26_db51f8f3def2116167981f1451fb6264_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-08-26_db51f8f3def2116167981f1451fb6264_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-26_db51f8f3def2116167981f1451fb6264_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:712
- 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:3252

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
55KB

MD5
3ec52956d6c2989adb6376ce3a5e1525

SHA1
5895679d5bbdbf63c1ab359f1467b339f001c36b

SHA256
87bc501534d3e23741bf87a515b2bf23fc48bdb466c654a4328d48e1bde2ef87

SHA512
1a0828705f021076a50ee7a6b869b8946138dd1135b0d2906262a6f8c66de2f89f3e48d5567cb7542f981b18633e3c9ae7d38a3e2e8fac68fa9cbe863091add5

Download Submit
memory/712-1-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/712-0-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/712-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3252-25-0x0000000001F40000-0x0000000001F46000-memory.dmp

Filesize
24KB

Download