1b3171b8574de65678f94902abfa4fa33dc16aecd32be1cd9841325f992b0214

Analysis

max time kernel
94s
max time network
130s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
07/09/2024, 01:33

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General

Target

2024-09-07_fb5a16ab37b467e2a8b180ba571a2b25_cryptolocker.exe
Size

48KB
MD5

fb5a16ab37b467e2a8b180ba571a2b25
SHA1

84c09813f43acae73008dc0f53802cffe08090ad
SHA256

1b3171b8574de65678f94902abfa4fa33dc16aecd32be1cd9841325f992b0214
SHA512

979798af9e25e660e515bd96ce0ab49808fcc677f6cc0e1daf980bd2d214fe8bd4a54213956f00ca0485ba303e48c0d88aee75aaa91bec01944f4a38da72ce0a
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1x5hjat1:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7h

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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	2024-09-07_fb5a16ab37b467e2a8b180ba571a2b25_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
1748	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	2024-09-07_fb5a16ab37b467e2a8b180ba571a2b25_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 1516 wrote to memory of 1748	1516	2024-09-07_fb5a16ab37b467e2a8b180ba571a2b25_cryptolocker.exe	84
PID 1516 wrote to memory of 1748	1516	2024-09-07_fb5a16ab37b467e2a8b180ba571a2b25_cryptolocker.exe	84
PID 1516 wrote to memory of 1748	1516	2024-09-07_fb5a16ab37b467e2a8b180ba571a2b25_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-09-07_fb5a16ab37b467e2a8b180ba571a2b25_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-07_fb5a16ab37b467e2a8b180ba571a2b25_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1516
- 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:1748

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
49KB

MD5
ec52b2c56cd8cb4eb82160f3b41e15ad

SHA1
f78b898a34eb64544a1a2aaee7646b9a1d681e63

SHA256
77fb07e928c4e438bf45e3bfb00f22bbdcb439f05a5873660e45dd207f5081ab

SHA512
b1740e71b12c80782ba8dbfd1928136624f559b4050fc3971b52330a78d65b4acc8764150bc82cee619ab4bd53726a666733301207e3bd51d1598c51b4f5b565

Download Submit
memory/1516-0-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/1516-1-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/1516-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1748-25-0x0000000000630000-0x0000000000636000-memory.dmp

Filesize
24KB

Download