d5e4d596cf768369eca7762dfc7f9cec691847ec226162cde98d59a5de19bb3e

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
01/09/2024, 16:22

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General

Target

2024-09-01_0a19f7a830e0b3fa0eebc29e45880106_bkransomware_virut.exe
Size

3.2MB
MD5

0a19f7a830e0b3fa0eebc29e45880106
SHA1

440e0b6203845743eb0d44919ede5e39bb1f43ff
SHA256

d5e4d596cf768369eca7762dfc7f9cec691847ec226162cde98d59a5de19bb3e
SHA512

6a9fc65dbc2316343b9905d51b7f1321732f0616a43b140f2ebb7ebbe9a886b944f708bf2e2bba23756503bb72f858f0652f8f324e5545090fed85471f143f64
SSDEEP

3072:ygci+rDtAjIEbNdsPueRmwKiL1M4BYnWqAwzQlQeQltF19g19Qh:yGatRmviIQl0lX19g7O

Score

6^/10

discovery persistence

Malware Config

Signatures

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Run\Serverx = "C:\\Windows\\system32\\Serverx.exe"	2024-09-01_0a19f7a830e0b3fa0eebc29e45880106_bkransomware_virut.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Serverx.exe	2024-09-01_0a19f7a830e0b3fa0eebc29e45880106_bkransomware_virut.exe
File created	C:\Windows\SysWOW64\Serverx.exe	2024-09-01_0a19f7a830e0b3fa0eebc29e45880106_bkransomware_virut.exe

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	2024-09-01_0a19f7a830e0b3fa0eebc29e45880106_bkransomware_virut.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-01_0a19f7a830e0b3fa0eebc29e45880106_bkransomware_virut.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1296 wrote to memory of 1980	1296	2024-09-01_0a19f7a830e0b3fa0eebc29e45880106_bkransomware_virut.exe	30
PID 1296 wrote to memory of 1980	1296	2024-09-01_0a19f7a830e0b3fa0eebc29e45880106_bkransomware_virut.exe	30
PID 1296 wrote to memory of 1980	1296	2024-09-01_0a19f7a830e0b3fa0eebc29e45880106_bkransomware_virut.exe	30
PID 1296 wrote to memory of 1980	1296	2024-09-01_0a19f7a830e0b3fa0eebc29e45880106_bkransomware_virut.exe	30
PID 1296 wrote to memory of 1204	1296	2024-09-01_0a19f7a830e0b3fa0eebc29e45880106_bkransomware_virut.exe	21
PID 1296 wrote to memory of 1204	1296	2024-09-01_0a19f7a830e0b3fa0eebc29e45880106_bkransomware_virut.exe	21

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1204
- C:\Users\Admin\AppData\Local\Temp\2024-09-01_0a19f7a830e0b3fa0eebc29e45880106_bkransomware_virut.exe
  "C:\Users\Admin\AppData\Local\Temp\2024-09-01_0a19f7a830e0b3fa0eebc29e45880106_bkransomware_virut.exe"
  2⤵
  - Adds Run key to start application
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1296
- - C:\Users\Admin\AppData\Local\Temp\2024-09-01_0a19f7a830e0b3fa0eebc29e45880106_bkransomware_virut.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-01_0a19f7a830e0b3fa0eebc29e45880106_bkransomware_virut.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1980

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1204-2-0x0000000002E50000-0x0000000002E51000-memory.dmp

Filesize
4KB

Download
memory/1204-1-0x0000000002E50000-0x0000000002E51000-memory.dmp

Filesize
4KB

Download
memory/1296-3-0x0000000001250000-0x000000000158B17C-memory.dmp

Filesize
3.2MB

Download
memory/1296-4-0x0000000000A30000-0x0000000000D6C000-memory.dmp

Filesize
3.2MB

Download
memory/1296-5-0x0000000001250000-0x000000000158B17C-memory.dmp

Filesize
3.2MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads