4d4a9dd8b239d394f1998b481cdf83f869be2af2d8d568fcb47648d0d42bb71c

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
02/10/2024, 05:03

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General

Target

$PLUGINSDIR/DcryptDll.dll
Size

18KB
MD5

bbda90c18c0cd73917174bb8b82782e2
SHA1

8d641f33049dc7fad7ab885134f29f881968f24b
SHA256

57a03e767e13d4843a4249116928b57513c6865d81ff583a230485a6ef755c3a
SHA512

8698a81573ac295321bc55300f114a50c9428ef56feaa434d84d8fabb0dd098e1b538d247f5aa0524d8e7be7291dd7995f12aee5dc41715be092a27a61ca5e0b
SSDEEP

384:nZyQSewDbPmRqcXx2kMPrd9cbkUmR08EMW6:nbtwnmR/xQdckUSEMW6

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2860	2112	WerFault.exe	30

System Location Discovery: System Language Discovery 1 TTPs 1 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	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2716 wrote to memory of 2112	2716	rundll32.exe	30
PID 2716 wrote to memory of 2112	2716	rundll32.exe	30
PID 2716 wrote to memory of 2112	2716	rundll32.exe	30
PID 2716 wrote to memory of 2112	2716	rundll32.exe	30
PID 2716 wrote to memory of 2112	2716	rundll32.exe	30
PID 2716 wrote to memory of 2112	2716	rundll32.exe	30
PID 2716 wrote to memory of 2112	2716	rundll32.exe	30
PID 2112 wrote to memory of 2860	2112	rundll32.exe	31
PID 2112 wrote to memory of 2860	2112	rundll32.exe	31
PID 2112 wrote to memory of 2860	2112	rundll32.exe	31
PID 2112 wrote to memory of 2860	2112	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\DcryptDll.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2716
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\DcryptDll.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2112
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2112 -s 224
    3⤵
    - Program crash
    PID:2860

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Windows 7 deprecation

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