41d4868934911df58d351d59697699057b6293ec1657206bf75657e9fa129844

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, 07:13

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General

Target

2024-08-26_ed25e25666540aa270418f1f3d21a11d_cryptolocker.exe
Size

48KB
MD5

ed25e25666540aa270418f1f3d21a11d
SHA1

dc31bb7866b3ef21cedba926aacb31f9f2469b36
SHA256

41d4868934911df58d351d59697699057b6293ec1657206bf75657e9fa129844
SHA512

357bab639c7c65793ff73e1c90a8d60317411526f55e353f956b683b38691b7cfab40a33af478b5d2812160c7073db90861d61bc1a48897a55b3f61ad735fd78
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1x5hjatc:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7o

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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	2024-08-26_ed25e25666540aa270418f1f3d21a11d_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	hurok.exe

Executes dropped EXE 1 IoCs

pid	Process
1672	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_ed25e25666540aa270418f1f3d21a11d_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 1060 wrote to memory of 1672	1060	2024-08-26_ed25e25666540aa270418f1f3d21a11d_cryptolocker.exe	86
PID 1060 wrote to memory of 1672	1060	2024-08-26_ed25e25666540aa270418f1f3d21a11d_cryptolocker.exe	86
PID 1060 wrote to memory of 1672	1060	2024-08-26_ed25e25666540aa270418f1f3d21a11d_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-08-26_ed25e25666540aa270418f1f3d21a11d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-26_ed25e25666540aa270418f1f3d21a11d_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1060
- 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:1672

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
48KB

MD5
0f67fb3a37ab40300022e970b502f712

SHA1
3b932840f477838655e2bd167689d84baaad11c2

SHA256
90d33f7708a6caef02d6163ae25a3d93ecbc4e4aedd325e64f2a4141fa919ce8

SHA512
d488d28a6bc5b211a0cbd52cfafe56db6957930ffa6b883bd8ba56dc257dd1709ec1402a1a665096a45a4772dd193d15040021cbc6a03384d2fe940b1630115e

Download Submit
memory/1060-0-0x0000000000540000-0x0000000000546000-memory.dmp

Filesize
24KB

Download
memory/1060-1-0x0000000000540000-0x0000000000546000-memory.dmp

Filesize
24KB

Download
memory/1060-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1672-25-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download