437c8032e578d678d10379c25af38953c41821103fb2d7d25f6a229fdd2bec10

Analysis

max time kernel
151s
max time network
49s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
13-02-2023 22:51

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General

Target

Borrador/Language/Dutch.lng
Size

7KB
MD5

74fcffdda39abbc429741816b919a841
SHA1

61a1d03f2512771ac0d8ccbf2ef60ced97bc0e47
SHA256

ab2752577faa9ff94e1af58c5819e1c9e95c3d77eb966082bda7b7651886ed3e
SHA512

06b53ad4f95b562fe6ea56e294dc2e9f04f227ac457f3cf71c7986e42a381ad1977c65f628a56a0e71e1eb208ac63165ea7880d70ae1a8a79ea5ff4320e2c014
SSDEEP

192:dxfvm+zCJaSdnQZxeGUzEjpD9JPmBe85w8PjFj:rvm+OUSdnQZxeGUoNDjPmBe85wCj

Score

3^/10

Malware Config

Signatures

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

System Information Discovery
T1082

Modifies registry class 10 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\lng_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\lng_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\.lng\ = "lng_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\lng_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\lng_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\lng_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\.lng	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\lng_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1148	AcroRd32.exe
1148	AcroRd32.exe
1148	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2024 wrote to memory of 1464	2024	cmd.exe	28
PID 2024 wrote to memory of 1464	2024	cmd.exe	28
PID 2024 wrote to memory of 1464	2024	cmd.exe	28
PID 1464 wrote to memory of 1148	1464	rundll32.exe	29
PID 1464 wrote to memory of 1148	1464	rundll32.exe	29
PID 1464 wrote to memory of 1148	1464	rundll32.exe	29
PID 1464 wrote to memory of 1148	1464	rundll32.exe	29

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Borrador\Language\Dutch.lng
1⤵
- Suspicious use of WriteProcessMemory
PID:2024
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Borrador\Language\Dutch.lng
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1464
- - C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
    "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\Borrador\Language\Dutch.lng"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:1148

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1148-81-0x0000000000000000-mapping.dmp

Download
memory/1148-82-0x00000000759F1000-0x00000000759F3000-memory.dmp

Filesize
8KB

Download
memory/1464-76-0x0000000000000000-mapping.dmp

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memory/2024-54-0x000007FEFBEE1000-0x000007FEFBEE3000-memory.dmp

Filesize
8KB

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