b79592748b232a9a56ffbc5073ca7e34936d3514ae23e54303c5306313171d16

Analysis

max time kernel
21s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
26-12-2024 05:55

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General

Target

b79592748b232a9a56ffbc5073ca7e34936d3514ae23e54303c5306313171d16.dll
Size

220KB
MD5

ee4be9785927807e79d978973718d718
SHA1

12d55fb9ff9a875262b9d2989f9010dfc9f321b4
SHA256

b79592748b232a9a56ffbc5073ca7e34936d3514ae23e54303c5306313171d16
SHA512

dc36d9dd0c0681758681dd6994decabc953d5a490e0b168d8f1b3cabcb51eb95f3260f36f7cf05abe8fb7e44d096f7f655db750f08ca9796b1362255df0ef004
SSDEEP

3072:QgKKuiX63bw5dNjDh8pWVgTlFIYnT1rXk1LGYrM/OkiHfnt:BKZp3KNjVGvRr+LGJ/OkGft

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2096	rundll32mgr.exe

Loads dropped DLL 9 IoCs

pid	Process
3036	rundll32.exe
3036	rundll32.exe
1536	WerFault.exe
1536	WerFault.exe
1536	WerFault.exe
1536	WerFault.exe
1536	WerFault.exe
1536	WerFault.exe
1536	WerFault.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32mgr.exe	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1536	2096	WerFault.exe	31

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	rundll32mgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2964 wrote to memory of 3036	2964	rundll32.exe	30
PID 2964 wrote to memory of 3036	2964	rundll32.exe	30
PID 2964 wrote to memory of 3036	2964	rundll32.exe	30
PID 2964 wrote to memory of 3036	2964	rundll32.exe	30
PID 2964 wrote to memory of 3036	2964	rundll32.exe	30
PID 2964 wrote to memory of 3036	2964	rundll32.exe	30
PID 2964 wrote to memory of 3036	2964	rundll32.exe	30
PID 3036 wrote to memory of 2096	3036	rundll32.exe	31
PID 3036 wrote to memory of 2096	3036	rundll32.exe	31
PID 3036 wrote to memory of 2096	3036	rundll32.exe	31
PID 3036 wrote to memory of 2096	3036	rundll32.exe	31
PID 2096 wrote to memory of 1536	2096	rundll32mgr.exe	32
PID 2096 wrote to memory of 1536	2096	rundll32mgr.exe	32
PID 2096 wrote to memory of 1536	2096	rundll32mgr.exe	32
PID 2096 wrote to memory of 1536	2096	rundll32mgr.exe	32

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b79592748b232a9a56ffbc5073ca7e34936d3514ae23e54303c5306313171d16.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2964
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b79592748b232a9a56ffbc5073ca7e34936d3514ae23e54303c5306313171d16.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3036
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2096
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2096 -s 100
      4⤵
      Loads dropped DLL
      Program crash
      PID:1536

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

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Downloads

C:\Windows\SysWOW64\rundll32mgr.exe

Filesize
103KB

MD5
424873689d318369e458684a7d47bf18

SHA1
cc85aecf385fa222d3073d2aa53dcd0b3eb62068

SHA256
04a22ca7674eedef61f9dac1dd7ad08460ff0c0d4e71ba34aa2469bebec8029c

SHA512
53e67ebd100ade88ce81477eaf54b0592da0feb461c8e63cb46420a82d3d26bac93eb75455fd745d3277a31f9d6841f356267b685fb55fe4236833a0e79bef8f

Download Submit
memory/2096-18-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/3036-9-0x00000000009D0000-0x0000000000A6A000-memory.dmp

Filesize
616KB

Download
memory/3036-8-0x00000000009D0000-0x0000000000A6A000-memory.dmp

Filesize
616KB

Download
memory/3036-1-0x0000000010000000-0x0000000010039000-memory.dmp

Filesize
228KB

Download