metasploit | 8ccd60bef0c3fec91c51f3ac7c473d342b6dc6145f3267f0f780afeebf726380

General

Target

JaffaCakes118_98bdfe850392488fdf9c095dec277d7a.dll
Size

92KB
MD5

98bdfe850392488fdf9c095dec277d7a
SHA1

a5955cee800b82cb4f4960022a458aa6315e7bdd
SHA256

8ccd60bef0c3fec91c51f3ac7c473d342b6dc6145f3267f0f780afeebf726380
SHA512

e71dc8483fac2b70db688ecb31932d4ec80cb9d559151910136ebd60c6a2beea5a7daaa25105957851c1834d636741d6ee950a4226959539db4c0830d6b93cc7
SSDEEP

1536:zShWgnBHBqL2uPj+v/9qYziQnk2E4C11O/FmHTD34CYYhh9QIZ5O8hvEnmnt:+WgBHBqS9qYziQnXEd11lheIZ5lwm

Score

10^/10

metasploit backdoor discovery persistence trojan

Malware Config

Extracted

Family

metasploit

Version

encoder/fnstenv_mov

Signatures

MetaSploit
Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.
trojan backdoor metasploit
Metasploit family
metasploit

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\Control Panel\International\Geo\Nation	rundll32.exe
Key value queried	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\Control Panel\International\Geo\Nation	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
1232	rundll32.exe

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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WinDLL (nnetstats.exe) = "rundll32.exe C:\\Windows\\system32\\nnetstats.exe,start"	rundll32.exe

Drops file in System32 directory 2 IoCs

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

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1068 wrote to memory of 1728	1068	rundll32.exe	85
PID 1068 wrote to memory of 1728	1068	rundll32.exe	85
PID 1068 wrote to memory of 1728	1068	rundll32.exe	85
PID 1728 wrote to memory of 1232	1728	rundll32.exe	89
PID 1728 wrote to memory of 1232	1728	rundll32.exe	89
PID 1728 wrote to memory of 1232	1728	rundll32.exe	89
PID 1728 wrote to memory of 5716	1728	rundll32.exe	90
PID 1728 wrote to memory of 5716	1728	rundll32.exe	90
PID 1728 wrote to memory of 5716	1728	rundll32.exe	90
PID 5420 wrote to memory of 776	5420	cmd.exe	92
PID 5420 wrote to memory of 776	5420	cmd.exe	92

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_98bdfe850392488fdf9c095dec277d7a.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1068
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_98bdfe850392488fdf9c095dec277d7a.dll,#1
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1728
- - C:\Windows\SysWOW64\rundll32.exe
    "C:\Windows\System32\rundll32.exe" C:\Windows\system32\nnetstats.exe,start
    3⤵
    - Checks computer location settings
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:1232
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\uninstall.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:5716

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c rundll32.exe C:\Windows\system32\nnetstats.exe,start
1⤵
- Suspicious use of WriteProcessMemory
PID:5420
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Windows\system32\nnetstats.exe,start
  2⤵
  PID:776

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\uninstall.bat

Filesize
266B

MD5
5cb9814c38b335962a9c1292c26ee88c

SHA1
95a4ae5bb6dc8f29f875bab1e4b947ab76d70874

SHA256
16b78937aef1d0cb149ac3f485b1b637c98f053a99bfa67b0ddbe5cffb2ea90e

SHA512
e7a60d7512da95659f131345df69b26b7947a6599606aac7436865192eb5513417531d6617f2e88c4db61467a7ebf6fdfc6862eb5ff361ac4695c8d0625fb2a4

Download Submit
C:\Windows\SysWOW64\nnetstats.exe

Filesize
92KB

MD5
98bdfe850392488fdf9c095dec277d7a

SHA1
a5955cee800b82cb4f4960022a458aa6315e7bdd

SHA256
8ccd60bef0c3fec91c51f3ac7c473d342b6dc6145f3267f0f780afeebf726380

SHA512
e71dc8483fac2b70db688ecb31932d4ec80cb9d559151910136ebd60c6a2beea5a7daaa25105957851c1834d636741d6ee950a4226959539db4c0830d6b93cc7

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads