njrat | 049e3ab43c29a82fc17b415fb88df0b0c238efea6be76a25da1f2bb88ee22a6b

General

Target

Venom V5.exe
Size

289KB
MD5

121a7190a24ba74a4c49c951dd56ad72
SHA1

fb5b1adf74cda03d5a77096b866942a6fbd5aa89
SHA256

049e3ab43c29a82fc17b415fb88df0b0c238efea6be76a25da1f2bb88ee22a6b
SHA512

b1a983027932897e97c4e3ac9865e6fe987c3b772c5847db3f3cc5b8e2b4c845e7040bf8a7e7d546b77c3f78e39c32eaeb7321f1c6f99dd28554c80fec603bb3
SSDEEP

6144:6/E7c5W+sPgJJUuCm2pad2AO51SLPml16S6M6supNDdPstxChZ:UEeggJauClpjL5sar6M6supXPstw

Score

10^/10

njrat victim discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

v4.0

Botnet

Victim

C2

audio-ham.gl.at.ply.gg:52424

Mutex

Windows

Attributes

reg_key
Windows
splitter
|-F-|

Signatures

Njrat family
njrat
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

Processes:

netsh.exe

pid process

3712 netsh.exe

pid	process
3712	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

Processes:

Venom V5.exepaylod.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	Venom V5.exe
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	paylod.exe

Drops startup file 2 IoCs

Processes:

paylod.exePayload.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.lnk	paylod.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.lnk	Payload.exe

Executes dropped EXE 3 IoCs

Processes:

paylod.exemain.exePayload.exe

pid process

4112 paylod.exe
4616 main.exe
3052 Payload.exe

pid	process
4112	paylod.exe
4616	main.exe
3052	Payload.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

paylod.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows2 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Payload.exe"	paylod.exe

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

Processes:

netsh.exe

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 9 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

Processes:

PING.EXEVenom V5.exeattrib.exeattrib.exeattrib.execmd.exenetsh.exepaylod.exePayload.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Venom V5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	paylod.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Payload.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
discovery

Internet Connection Discovery
T1016.001

Processes:

cmd.exePING.EXE

pid process

4648 cmd.exe
1632 PING.EXE
Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

1632 PING.EXE

pid	process
4648	cmd.exe
1632	PING.EXE

pid	process
1632	PING.EXE

Suspicious use of AdjustPrivilegeToken 21 IoCs

Processes:

Payload.exe

description	pid	process
Token: SeDebugPrivilege	3052	Payload.exe
Token: 33	3052	Payload.exe
Token: SeIncBasePriorityPrivilege	3052	Payload.exe
Token: 33	3052	Payload.exe
Token: SeIncBasePriorityPrivilege	3052	Payload.exe
Token: 33	3052	Payload.exe
Token: SeIncBasePriorityPrivilege	3052	Payload.exe
Token: 33	3052	Payload.exe
Token: SeIncBasePriorityPrivilege	3052	Payload.exe
Token: 33	3052	Payload.exe
Token: SeIncBasePriorityPrivilege	3052	Payload.exe
Token: 33	3052	Payload.exe
Token: SeIncBasePriorityPrivilege	3052	Payload.exe
Token: 33	3052	Payload.exe
Token: SeIncBasePriorityPrivilege	3052	Payload.exe
Token: 33	3052	Payload.exe
Token: SeIncBasePriorityPrivilege	3052	Payload.exe
Token: 33	3052	Payload.exe
Token: SeIncBasePriorityPrivilege	3052	Payload.exe
Token: 33	3052	Payload.exe
Token: SeIncBasePriorityPrivilege	3052	Payload.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

Venom V5.exemain.execmd.exepaylod.exePayload.execmd.exe

description	pid	process	target process
PID 4056 wrote to memory of 4112	4056	Venom V5.exe	paylod.exe
PID 4056 wrote to memory of 4112	4056	Venom V5.exe	paylod.exe
PID 4056 wrote to memory of 4112	4056	Venom V5.exe	paylod.exe
PID 4056 wrote to memory of 4616	4056	Venom V5.exe	main.exe
PID 4056 wrote to memory of 4616	4056	Venom V5.exe	main.exe
PID 4616 wrote to memory of 1688	4616	main.exe	cmd.exe
PID 4616 wrote to memory of 1688	4616	main.exe	cmd.exe
PID 1688 wrote to memory of 1944	1688	cmd.exe	chcp.com
PID 1688 wrote to memory of 1944	1688	cmd.exe	chcp.com
PID 4112 wrote to memory of 3052	4112	paylod.exe	Payload.exe
PID 4112 wrote to memory of 3052	4112	paylod.exe	Payload.exe
PID 4112 wrote to memory of 3052	4112	paylod.exe	Payload.exe
PID 4112 wrote to memory of 3440	4112	paylod.exe	attrib.exe
PID 4112 wrote to memory of 3440	4112	paylod.exe	attrib.exe
PID 4112 wrote to memory of 3440	4112	paylod.exe	attrib.exe
PID 3052 wrote to memory of 4940	3052	Payload.exe	attrib.exe
PID 3052 wrote to memory of 4940	3052	Payload.exe	attrib.exe
PID 3052 wrote to memory of 4940	3052	Payload.exe	attrib.exe
PID 3052 wrote to memory of 5080	3052	Payload.exe	attrib.exe
PID 3052 wrote to memory of 5080	3052	Payload.exe	attrib.exe
PID 3052 wrote to memory of 5080	3052	Payload.exe	attrib.exe
PID 3052 wrote to memory of 3712	3052	Payload.exe	netsh.exe
PID 3052 wrote to memory of 3712	3052	Payload.exe	netsh.exe
PID 3052 wrote to memory of 3712	3052	Payload.exe	netsh.exe
PID 3052 wrote to memory of 4648	3052	Payload.exe	cmd.exe
PID 3052 wrote to memory of 4648	3052	Payload.exe	cmd.exe
PID 3052 wrote to memory of 4648	3052	Payload.exe	cmd.exe
PID 4648 wrote to memory of 1632	4648	cmd.exe	PING.EXE
PID 4648 wrote to memory of 1632	4648	cmd.exe	PING.EXE
PID 4648 wrote to memory of 1632	4648	cmd.exe	PING.EXE

Views/modifies file attributes 1 TTPs 3 IoCs
evasion

Hidden Files and Directories
T1564.001

Processes:

attrib.exeattrib.exeattrib.exe

pid process

3440 attrib.exe
4940 attrib.exe
5080 attrib.exe

pid	process
3440	attrib.exe
4940	attrib.exe
5080	attrib.exe

C:\Users\Admin\AppData\Local\Temp\Venom V5.exe
"C:\Users\Admin\AppData\Local\Temp\Venom V5.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4056
- C:\Users\Admin\AppData\Local\Temp\paylod.exe
  "C:\Users\Admin\AppData\Local\Temp\paylod.exe"
  2⤵
  - Checks computer location settings
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4112
- - C:\Users\Admin\AppData\Local\Temp\Payload.exe
    "C:\Users\Admin\AppData\Local\Temp\Payload.exe"
    3⤵
    - Drops startup file
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3052
  - - C:\Windows\SysWOW64\attrib.exe
      attrib +h +r +s "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.exe"
      4⤵
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:4940
  - - C:\Windows\SysWOW64\attrib.exe
      attrib +h +r +s "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\Windows.exe"
      4⤵
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:5080
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall delete allowedprogram "C:\Users\Admin\AppData\Local\Temp\Payload.exe"
      4⤵
      Modifies Windows Firewall
      Event Triggered Execution: Netsh Helper DLL
      System Location Discovery: System Language Discovery
      PID:3712
  - - C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 0 -n 2 & del "C:\Users\Admin\AppData\Local\Temp\Payload.exe"
      4⤵
      System Location Discovery: System Language Discovery
      System Network Configuration Discovery: Internet Connection Discovery
      Suspicious use of WriteProcessMemory
      PID:4648
    - - C:\Windows\SysWOW64\PING.EXE
        
        ping 0 -n 2
        5⤵
        System Location Discovery: System Language Discovery
        System Network Configuration Discovery: Internet Connection Discovery
        Runs ping.exe
        
        PID:1632
- - C:\Windows\SysWOW64\attrib.exe
    attrib +h +r +s "C:\Users\Admin\AppData\Local\Temp\Payload.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:3440
- C:\Users\Admin\AppData\Local\Temp\main.exe
  "C:\Users\Admin\AppData\Local\Temp\main.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:4616
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd" /c "C:\Users\Admin\AppData\Local\Temp\6D8F.tmp\6D90.tmp\6D91.bat C:\Users\Admin\AppData\Local\Temp\main.exe"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1688
  - - C:\Windows\system32\chcp.com
      chcp 65001
      4⤵
      PID:1944

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

1

T1546

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

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Hide Artifacts

1

T1564

Hidden Files and Directories

1

T1564.001

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\6D8F.tmp\6D90.tmp\6D91.bat

Filesize
3KB

MD5
ed10dc8c536ee4a022b94514936658e1

SHA1
006378f2c2837b196ecd17db6f1d6db862b8454e

SHA256
6851924794377b148813fd77ffe990aeb8abd363e9086b73bf76db117feedc59

SHA512
245a2bef61c75090b9108a5c5b81a77d1091b5a4abe8f561d5658e9c708907fe2ada359a9931dfa6decf0a06e5a0fdb08dab6ed7165a78f559512cbedf37634f

Download Submit
C:\Users\Admin\AppData\Local\Temp\main.exe

Filesize
126KB

MD5
fb32165caff9614efbc6311fe75da2f2

SHA1
674e7a93ed4b9cb097d846463a249bd68c4ab7a6

SHA256
41018b0dcfb3adf0ddcda481a276d98cbcee94698ac9c7dbd3644a86687e76e8

SHA512
65356ddd14df07f2153e740a8ac9f4d722e604a85663254f5e444850cbb66c15c35e7cedc6fece72df63677ffbbeb094122b05c11e01bf0cded917c3c4608a6d

Download Submit
C:\Users\Admin\AppData\Local\Temp\paylod.exe

Filesize
26KB

MD5
1f5545281784c48b113dde61778a4697

SHA1
46aee2f749bbee1fb7e4f5d8609b798bd5077673

SHA256
e31e3e11ce40c048eed1a0f68b0e47a15369b9289b30dcce9fe70b7f7ea26c20

SHA512
e262e58f15bbbee488a8423cbd5f03b2e9ab12b7af267d3278b48cb86373ff180b992d126694d3e224a8b97bff5edbaeb9c0d3493528b0d6b49e236339a1ab37

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

Filesize
1KB

MD5
a2bdf65651bf647b5e2f008501d71ddc

SHA1
af9dd7b7c2ccae950ee2d21c585fccdcdd58220d

SHA256
37118466e955a6ca34b5bdbeebbccaa4da1b857682a986dde4e64e710fd0cb38

SHA512
d7b7b58d9e4ce0f7441048f46470b2a02289699119683ff2b33a7011bae1eba2d419ab637f6cf1f51d5a08b4d8d1b08f69548ecb0484892b331d1c17642e287a

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\Windows.lnk

Filesize
1KB

MD5
8922f999a87fa684ec8c7a335b19e64b

SHA1
a7a37c39da3f4185fd3d271cf5842d5db460c907

SHA256
edfadcfeb9f9750f0017d0111127297eda3c0f50590408c44f8d894c5af97422

SHA512
abb8fe922afc8801b58944d45e0364ab684b42993e442895302566a4d9f3f26829e3275d22ce8895e191c41d83e1780d74f8723d04698210cbeb7dc6bc29ad92

Download Submit
memory/3052-43-0x00000000055D0000-0x0000000005662000-memory.dmp

Filesize
584KB

Download
memory/3052-44-0x0000000005590000-0x000000000559A000-memory.dmp

Filesize
40KB

Download
memory/3052-46-0x0000000000940000-0x00000000009EC000-memory.dmp

Filesize
688KB

Download
memory/3052-45-0x0000000005820000-0x0000000005886000-memory.dmp

Filesize
408KB

Download
memory/3052-47-0x0000000005A80000-0x0000000005A8A000-memory.dmp

Filesize
40KB

Download
memory/4056-20-0x0000000074800000-0x0000000074DB1000-memory.dmp

Filesize
5.7MB

Download
memory/4056-0-0x0000000074802000-0x0000000074803000-memory.dmp

Filesize
4KB

Download
memory/4056-2-0x0000000074800000-0x0000000074DB1000-memory.dmp

Filesize
5.7MB

Download
memory/4056-1-0x0000000074800000-0x0000000074DB1000-memory.dmp

Filesize
5.7MB

Download
memory/4112-29-0x000000007198E000-0x000000007198F000-memory.dmp

Filesize
4KB

Download
memory/4112-28-0x0000000006610000-0x0000000006BB4000-memory.dmp

Filesize
5.6MB

Download
memory/4112-19-0x000000007198E000-0x000000007198F000-memory.dmp

Filesize
4KB

Download
memory/4112-21-0x0000000000D60000-0x0000000000D6C000-memory.dmp

Filesize
48KB

Download
memory/4112-23-0x00000000056D0000-0x000000000576C000-memory.dmp

Filesize
624KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads