njrat | 049e3ab43c29a82fc17b415fb88df0b0c238efea6be76a25da1f2bb88ee22a6b

Analysis

max time kernel
153s
max time network
208s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20241023-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20241023-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
23-11-2024 17:45

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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

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
1600	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-1-5-21-1361837696-2276465416-1936241636-1000\Control Panel\International\Geo\Nation	Venom V5.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1361837696-2276465416-1936241636-1000\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
3160	paylod.exe
1636	main.exe
3580	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-1-5-21-1361837696-2276465416-1936241636-1000\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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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:

Venom V5.exeattrib.exeattrib.exeattrib.execmd.exepaylod.exePayload.exePING.EXEnetsh.exe

description	ioc	Process
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	paylod.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Payload.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.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
3576	cmd.exe
4080	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

Processes:

PING.EXE

pid	Process
4080	PING.EXE

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Payload.exe

description	pid	Process
Token: SeDebugPrivilege	3580	Payload.exe
Token: 33	3580	Payload.exe
Token: SeIncBasePriorityPrivilege	3580	Payload.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

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

description	pid	Process	procid_target
PID 4720 wrote to memory of 3160	4720	Venom V5.exe	81
PID 4720 wrote to memory of 3160	4720	Venom V5.exe	81
PID 4720 wrote to memory of 3160	4720	Venom V5.exe	81
PID 4720 wrote to memory of 1636	4720	Venom V5.exe	82
PID 4720 wrote to memory of 1636	4720	Venom V5.exe	82
PID 1636 wrote to memory of 3200	1636	main.exe	84
PID 1636 wrote to memory of 3200	1636	main.exe	84
PID 3200 wrote to memory of 3704	3200	cmd.exe	85
PID 3200 wrote to memory of 3704	3200	cmd.exe	85
PID 3160 wrote to memory of 3580	3160	paylod.exe	93
PID 3160 wrote to memory of 3580	3160	paylod.exe	93
PID 3160 wrote to memory of 3580	3160	paylod.exe	93
PID 3160 wrote to memory of 3620	3160	paylod.exe	94
PID 3160 wrote to memory of 3620	3160	paylod.exe	94
PID 3160 wrote to memory of 3620	3160	paylod.exe	94
PID 3580 wrote to memory of 4916	3580	Payload.exe	96
PID 3580 wrote to memory of 4916	3580	Payload.exe	96
PID 3580 wrote to memory of 4916	3580	Payload.exe	96
PID 3580 wrote to memory of 2052	3580	Payload.exe	97
PID 3580 wrote to memory of 2052	3580	Payload.exe	97
PID 3580 wrote to memory of 2052	3580	Payload.exe	97
PID 3580 wrote to memory of 1600	3580	Payload.exe	101
PID 3580 wrote to memory of 1600	3580	Payload.exe	101
PID 3580 wrote to memory of 1600	3580	Payload.exe	101
PID 3580 wrote to memory of 3576	3580	Payload.exe	102
PID 3580 wrote to memory of 3576	3580	Payload.exe	102
PID 3580 wrote to memory of 3576	3580	Payload.exe	102
PID 3576 wrote to memory of 4080	3576	cmd.exe	105
PID 3576 wrote to memory of 4080	3576	cmd.exe	105
PID 3576 wrote to memory of 4080	3576	cmd.exe	105

Views/modifies file attributes 1 TTPs 3 IoCs

evasion

Hidden Files and Directories

T1564.001

Processes:

attrib.exeattrib.exeattrib.exe

pid	Process
3620	attrib.exe
4916	attrib.exe
2052	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:4720
- 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:3160
- - 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:3580
  - - 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:4916
  - - 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:2052
  - - 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:1600
  - - 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:3576
    - - 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:4080
- - 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:3620
- 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:1636
- - C:\Windows\system32\cmd.exe
    "C:\Windows\system32\cmd" /c "C:\Users\Admin\AppData\Local\Temp\8A8D.tmp\8A8E.tmp\8A8F.bat C:\Users\Admin\AppData\Local\Temp\main.exe"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3200
  - - C:\Windows\system32\chcp.com
      chcp 65001
      4⤵
      PID:3704

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

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\8A8D.tmp\8A8E.tmp\8A8F.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
e00fc01b92bc57dc4759bf24ca6e43d0

SHA1
d3fa9f8cdbc82ad784ffa8ce613997cdf8bf6d12

SHA256
a4458ac4866f8759ea748cedbc35fc0bdd11ca6625fa442f9d5776c0abc9ab9e

SHA512
63997e5e4f6eaafac8226128df9344342a957815a4c319f6b4e8282b8c6a5cc014038edcae8c34f428195f1519069bfd8e66979ac887e40001773c4f6b501804

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

Filesize
1KB

MD5
97375999c04e6895dd15715b9e082a5d

SHA1
3d7c5acabac862081a7004e9a69d7b907d5e4435

SHA256
248411322d284149189287238e7513e9609c4640a9761f5d6d7b11b852244f7b

SHA512
581a2c8e4fbaa7e5afb8691bbdefe1309d1a8952aa50f1734c9dd016ca0243e2b0b19f8d91c0dee290b77914d873c1f5fdf9d22f8bdc7f5fb47e713763f70908

Download Submit
memory/3160-27-0x0000000000A30000-0x0000000000A3C000-memory.dmp

Filesize
48KB

Download
memory/3160-25-0x000000007264E000-0x000000007264F000-memory.dmp

Filesize
4KB

Download
memory/3160-28-0x00000000052B0000-0x000000000534C000-memory.dmp

Filesize
624KB

Download
memory/3160-34-0x0000000006180000-0x0000000006726000-memory.dmp

Filesize
5.6MB

Download
memory/3160-35-0x000000007264E000-0x000000007264F000-memory.dmp

Filesize
4KB

Download
memory/3580-52-0x0000000005F50000-0x0000000005FE2000-memory.dmp

Filesize
584KB

Download
memory/3580-53-0x0000000005F20000-0x0000000005F2A000-memory.dmp

Filesize
40KB

Download
memory/3580-54-0x0000000006060000-0x00000000060C6000-memory.dmp

Filesize
408KB

Download
memory/4720-2-0x0000000075520000-0x0000000075AD1000-memory.dmp

Filesize
5.7MB

Download
memory/4720-1-0x0000000075520000-0x0000000075AD1000-memory.dmp

Filesize
5.7MB

Download
memory/4720-0-0x0000000075522000-0x0000000075523000-memory.dmp

Filesize
4KB

Download
memory/4720-26-0x0000000075520000-0x0000000075AD1000-memory.dmp

Filesize
5.7MB

Download