e6fea71acb4cdcc7e0b70bfca9159a35bbdf1719009db277a38b43b43c2fcfd4

Analysis

max time kernel
120s
max time network
122s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
24/12/2023, 15:56

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General

Target

0488c0003a0c7506e98624b4422db3a5.dll
Size

236KB
MD5

0488c0003a0c7506e98624b4422db3a5
SHA1

f4d7446788d5e6e7e5876d5a883fabf311647874
SHA256

e6fea71acb4cdcc7e0b70bfca9159a35bbdf1719009db277a38b43b43c2fcfd4
SHA512

d2d823a4bb34bc7608f2fa481dfb14a0f4ac010fbcbaebc95cb25c478325e84021033e262b1a61c2c8c110b0552f1c37a4da335533259239a8563552923c707e
SSDEEP

1536:Iguo2K86vta10RJQYPIHL+D5IWhxRh/Ci4ucg3/+k5ltr+DRPG8Gz7wk+cQvM5:Go256vS0RJAL+lHPKi40+66iwkD0y

Score

10^/10

persistence

Malware Config

Signatures

Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\afazovvxi = "{4f21e13f-c7a9-1cfe-d8ba-c7a969b720a0}"	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
2200	rundll32.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\nsnmbiikv.dll	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\nsnmbiikv.dll	rundll32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4f21e13f-c7a9-1cfe-d8ba-c7a969b720a0}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4f21e13f-c7a9-1cfe-d8ba-c7a969b720a0}\	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4f21e13f-c7a9-1cfe-d8ba-c7a969b720a0}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4f21e13f-c7a9-1cfe-d8ba-c7a969b720a0}\InprocServer32\ = "C:\\Windows\\SysWow64\\vavujqqsd.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{4f21e13f-c7a9-1cfe-d8ba-c7a969b720a0}\InprocServer32\ThreadingModel = "Apartment"	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2356 wrote to memory of 2200	2356	rundll32.exe	16
PID 2356 wrote to memory of 2200	2356	rundll32.exe	16
PID 2356 wrote to memory of 2200	2356	rundll32.exe	16
PID 2356 wrote to memory of 2200	2356	rundll32.exe	16
PID 2356 wrote to memory of 2200	2356	rundll32.exe	16
PID 2356 wrote to memory of 2200	2356	rundll32.exe	16
PID 2356 wrote to memory of 2200	2356	rundll32.exe	16

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\0488c0003a0c7506e98624b4422db3a5.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2356
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\0488c0003a0c7506e98624b4422db3a5.dll,#1
  2⤵
  - Adds autorun key to be loaded by Explorer.exe on startup
  - Loads dropped DLL
  - Drops file in System32 directory
  - Modifies registry class
  PID:2200

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2200-8-0x0000000076950000-0x00000000769F0000-memory.dmp

Filesize
640KB

Download
memory/2200-7-0x0000000000330000-0x0000000000374000-memory.dmp

Filesize
272KB

Download
memory/2200-2-0x0000000000330000-0x0000000000374000-memory.dmp

Filesize
272KB

Download
memory/2200-0-0x0000000000330000-0x0000000000374000-memory.dmp

Filesize
272KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads