njrat | 3f330d95bd8bf7c71809189a1aa5285fea9d63fc7d193cda4b827e04bfa16bb3

General

Target

3b293d74827ff906a5ca3a4e4439e98f_JaffaCakes118.vbs
Size

188KB
MD5

3b293d74827ff906a5ca3a4e4439e98f
SHA1

76d14a79e2be1543ab79873e7b87f0deee8aad17
SHA256

3f330d95bd8bf7c71809189a1aa5285fea9d63fc7d193cda4b827e04bfa16bb3
SHA512

255295a70314398b0b96d4408f0606d385773accd0d5811cb697ff4f80b58c15f600ef9f18e17b09edfab9879541e6104fc759343cd36e1ed609899598a62d8a
SSDEEP

3072:GJOgUyL6Msee8JZo34CTmlXbvMnSIRLMH8eOtWejCOGXeAYgFwnHBKLg209BY:GFXO8JZi4CTmlXbUn3FuODCRXeUwKG6

Score

10^/10

njrat |erica|discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

|Erica|

C2

drpc.duckdns.org:1414

Mutex

48d74fcafbfa01ee33743b0d0ea39495

Attributes

reg_key
48d74fcafbfa01ee33743b0d0ea39495
splitter
TOP

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
4136	netsh.exe

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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	WScript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	WSCRIPT.EXE

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\google.vbs.vbs	WScript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\google.vbs.vbs	WSCRIPT.EXE

Event Triggered Execution: Component Object Model Hijacking 1 TTPs
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
persistence privilege_escalation

Component Object Model Hijacking
T1546.015

Loads dropped DLL 2 IoCs

pid	Process
1500	regsvr32.exe
3956	WSCRIPT.EXE

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\google.vbs = "WScript.exe //b //e:vbscript \"C:\\Users\\Admin\\AppData\\Local\\Temp\\google.vbs\""	WScript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\google.vbs = "WScript.exe //b //e:vbscript \"C:\\Users\\Admin\\AppData\\Local\\Temp\\google.vbs\""	WSCRIPT.EXE

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3956 set thread context of 5004	3956	WSCRIPT.EXE	89

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

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 4 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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WSCRIPT.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBUILD.EXE

Modifies registry class 8 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000_Classes\WOW6432Node	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000_Classes\WOW6432Node\CLSID	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000_Classes\WOW6432Node\CLSID\{89565275-A714-4a43-912E-978B935EDCCC}	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000_Classes\WOW6432Node\CLSID\{89565275-A714-4a43-912E-978B935EDCCC}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\google.vbs.BIN"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000_Classes\DynamicWrapperX\CLSID	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000_Classes\DynamicWrapperX	regsvr32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000_Classes\DynamicWrapperX\CLSID\ = "{89565275-A714-4a43-912E-978B935EDCCC}"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000_Classes\WOW6432Node\CLSID\{89565275-A714-4a43-912E-978B935EDCCC}\InProcServer32	regsvr32.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	5004	MSBUILD.EXE
Token: 33	5004	MSBUILD.EXE
Token: SeIncBasePriorityPrivilege	5004	MSBUILD.EXE
Token: 33	5004	MSBUILD.EXE
Token: SeIncBasePriorityPrivilege	5004	MSBUILD.EXE
Token: 33	5004	MSBUILD.EXE
Token: SeIncBasePriorityPrivilege	5004	MSBUILD.EXE
Token: 33	5004	MSBUILD.EXE
Token: SeIncBasePriorityPrivilege	5004	MSBUILD.EXE
Token: 33	5004	MSBUILD.EXE
Token: SeIncBasePriorityPrivilege	5004	MSBUILD.EXE
Token: 33	5004	MSBUILD.EXE
Token: SeIncBasePriorityPrivilege	5004	MSBUILD.EXE
Token: 33	5004	MSBUILD.EXE
Token: SeIncBasePriorityPrivilege	5004	MSBUILD.EXE
Token: 33	5004	MSBUILD.EXE
Token: SeIncBasePriorityPrivilege	5004	MSBUILD.EXE
Token: 33	5004	MSBUILD.EXE
Token: SeIncBasePriorityPrivilege	5004	MSBUILD.EXE
Token: 33	5004	MSBUILD.EXE
Token: SeIncBasePriorityPrivilege	5004	MSBUILD.EXE
Token: 33	5004	MSBUILD.EXE
Token: SeIncBasePriorityPrivilege	5004	MSBUILD.EXE
Token: 33	5004	MSBUILD.EXE
Token: SeIncBasePriorityPrivilege	5004	MSBUILD.EXE
Token: 33	5004	MSBUILD.EXE
Token: SeIncBasePriorityPrivilege	5004	MSBUILD.EXE
Token: 33	5004	MSBUILD.EXE
Token: SeIncBasePriorityPrivilege	5004	MSBUILD.EXE
Token: 33	5004	MSBUILD.EXE
Token: SeIncBasePriorityPrivilege	5004	MSBUILD.EXE
Token: 33	5004	MSBUILD.EXE
Token: SeIncBasePriorityPrivilege	5004	MSBUILD.EXE
Token: 33	5004	MSBUILD.EXE
Token: SeIncBasePriorityPrivilege	5004	MSBUILD.EXE

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1512 wrote to memory of 3956	1512	WScript.exe	86
PID 1512 wrote to memory of 3956	1512	WScript.exe	86
PID 1512 wrote to memory of 3956	1512	WScript.exe	86
PID 3956 wrote to memory of 1500	3956	WSCRIPT.EXE	88
PID 3956 wrote to memory of 1500	3956	WSCRIPT.EXE	88
PID 3956 wrote to memory of 1500	3956	WSCRIPT.EXE	88
PID 3956 wrote to memory of 5004	3956	WSCRIPT.EXE	89
PID 3956 wrote to memory of 5004	3956	WSCRIPT.EXE	89
PID 3956 wrote to memory of 5004	3956	WSCRIPT.EXE	89
PID 3956 wrote to memory of 5004	3956	WSCRIPT.EXE	89
PID 3956 wrote to memory of 5004	3956	WSCRIPT.EXE	89
PID 5004 wrote to memory of 4136	5004	MSBUILD.EXE	90
PID 5004 wrote to memory of 4136	5004	MSBUILD.EXE	90
PID 5004 wrote to memory of 4136	5004	MSBUILD.EXE	90

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\3b293d74827ff906a5ca3a4e4439e98f_JaffaCakes118.vbs"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1512
- C:\Windows\SYSWOW64\WSCRIPT.EXE
  "C:\Windows\SYSWOW64\WSCRIPT.EXE" //b //e:vbscript "C:\Users\Admin\AppData\Local\Temp\3b293d74827ff906a5ca3a4e4439e98f_JaffaCakes118.vbs"
  2⤵
  - Checks computer location settings
  - Drops startup file
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3956
- - C:\Windows\SysWOW64\regsvr32.exe
    "C:\Windows\System32\regsvr32.exe" /I /S "C:\Users\Admin\AppData\Local\Temp\google.vbs.BIN"
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Modifies registry class
    PID:1500
- - C:\Windows\MICROSOFT.NET\FRAMEWORK\V2.0.50727\MSBUILD.EXE
    "C:\Windows\MICROSOFT.NET\FRAMEWORK\V2.0.50727\MSBUILD.EXE"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:5004
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Windows\MICROSOFT.NET\FRAMEWORK\V2.0.50727\MSBUILD.EXE" "MSBUILD.EXE" ENABLE
      4⤵
      Modifies Windows Firewall
      Event Triggered Execution: Netsh Helper DLL
      System Location Discovery: System Language Discovery
      PID:4136

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

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

2

T1546

Component Object Model Hijacking

1

T1546.015

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

2

T1546

Component Object Model Hijacking

1

T1546.015

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\google.vbs.BIN

Filesize
13KB

MD5
e0b8dfd17b8e7de760b273d18e58b142

SHA1
801509fb6783c9e57edc67a72dde3c62080ffbaf

SHA256
4ef3a6703abc6b2b8e2cac3031c1e5b86fe8b377fde92737349ee52bd2604379

SHA512
443359da27b3c87e81ae4f4b9a2ab7e7bf6abfa93551fc62347a0b79b36d79635131abc14d4deddab3ace12fdf973496518f67e1be8dc4903b35fd465835556b

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\google.vbs.vbs

Filesize
188KB

MD5
3b293d74827ff906a5ca3a4e4439e98f

SHA1
76d14a79e2be1543ab79873e7b87f0deee8aad17

SHA256
3f330d95bd8bf7c71809189a1aa5285fea9d63fc7d193cda4b827e04bfa16bb3

SHA512
255295a70314398b0b96d4408f0606d385773accd0d5811cb697ff4f80b58c15f600ef9f18e17b09edfab9879541e6104fc759343cd36e1ed609899598a62d8a

Download Submit
memory/3956-10-0x00000000037F0000-0x00000000037F1000-memory.dmp

Filesize
4KB

Download
memory/5004-11-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/5004-12-0x0000000001570000-0x0000000001580000-memory.dmp

Filesize
64KB

Download
memory/5004-13-0x0000000001570000-0x0000000001580000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads