njrat | 99603c4aa08d90d8b53a010e07ca12ddbac2c72e1c5896534215d20ae14fbf30

Analysis

max time kernel
252s
max time network
264s
platform
windows11-21h2_x64
resource
win11-20241007-en
resource tags

arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
submitted
30-10-2024 16:24

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General

Target

New Client.exe
Size

65KB
MD5

adebf8218a6f1e5ace6965a397c58be8
SHA1

92af1426e006b354ac230f88c59eb813c73d9625
SHA256

99603c4aa08d90d8b53a010e07ca12ddbac2c72e1c5896534215d20ae14fbf30
SHA512

3dc12ef879a13f2554d3d422ddc9b73e579fe0927d0a4fea38d2cd457975ab4da12f0519e0bea87c7df096c6cae5b288947aa52470a44a4017884d36f333c3eb
SSDEEP

1536:ifqK4Tm4BoN36t4QviFw1AjHkBnvbKfLteF3nLrB9z3nIaF9bKS9vM:ifqK4C4BoN36t4QviFC8EBnefWl9zYaS

Score

10^/10

njrat hacked discovery persistence trojan

Malware Config

Extracted

Family

njrat

Version

Platinum

Botnet

HacKed

127.0.0.1:36811

Mutex

svhost.exe

Attributes

reg_key
svhost.exe
splitter
|Ghost|

Signatures

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

Executes dropped EXE 6 IoCs

Processes:

svhost.exesvhost.exesvhost.exesvhost.exesvhost.exe36363a6c3b044a46b3cc7104c0176d42.exe

pid	Process
4300	svhost.exe
4424	svhost.exe
1568	svhost.exe
4600	svhost.exe
1076	svhost.exe
3684	36363a6c3b044a46b3cc7104c0176d42.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svhost.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2584844841-1405471295-1760131749-1000\Software\Microsoft\Windows\CurrentVersion\Run\svhost.exe = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\svhost.exe\" .."	svhost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\svhost.exe = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\svhost.exe\" .."	svhost.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 12 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:

New Client.exesvhost.exetaskkill.exesvhost.execmd.exechoice.exeschtasks.exeschtasks.exesvhost.exesvhost.exesvhost.exe36363a6c3b044a46b3cc7104c0176d42.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	New Client.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	choice.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	36363a6c3b044a46b3cc7104c0176d42.exe

Kills process with taskkill 1 IoCs

evasion

Processes:

taskkill.exe

pid	Process
404	taskkill.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

Processes:

schtasks.exe

pid	Process
5092	schtasks.exe

Suspicious use of AdjustPrivilegeToken 62 IoCs

Processes:

svhost.exeAUDIODG.EXE

description	pid	Process
Token: SeDebugPrivilege	4300	svhost.exe
Token: 33	4300	svhost.exe
Token: SeIncBasePriorityPrivilege	4300	svhost.exe
Token: 33	4300	svhost.exe
Token: SeIncBasePriorityPrivilege	4300	svhost.exe
Token: 33	4300	svhost.exe
Token: SeIncBasePriorityPrivilege	4300	svhost.exe
Token: 33	4300	svhost.exe
Token: SeIncBasePriorityPrivilege	4300	svhost.exe
Token: 33	4300	svhost.exe
Token: SeIncBasePriorityPrivilege	4300	svhost.exe
Token: 33	4300	svhost.exe
Token: SeIncBasePriorityPrivilege	4300	svhost.exe
Token: 33	4300	svhost.exe
Token: SeIncBasePriorityPrivilege	4300	svhost.exe
Token: 33	4300	svhost.exe
Token: SeIncBasePriorityPrivilege	4300	svhost.exe
Token: 33	4300	svhost.exe
Token: SeIncBasePriorityPrivilege	4300	svhost.exe
Token: 33	4300	svhost.exe
Token: SeIncBasePriorityPrivilege	4300	svhost.exe
Token: 33	4300	svhost.exe
Token: SeIncBasePriorityPrivilege	4300	svhost.exe
Token: 33	4300	svhost.exe
Token: SeIncBasePriorityPrivilege	4300	svhost.exe
Token: 33	4300	svhost.exe
Token: SeIncBasePriorityPrivilege	4300	svhost.exe
Token: 33	4300	svhost.exe
Token: SeIncBasePriorityPrivilege	4300	svhost.exe
Token: 33	4300	svhost.exe
Token: SeIncBasePriorityPrivilege	4300	svhost.exe
Token: 33	4300	svhost.exe
Token: SeIncBasePriorityPrivilege	4300	svhost.exe
Token: 33	4300	svhost.exe
Token: SeIncBasePriorityPrivilege	4300	svhost.exe
Token: 33	4300	svhost.exe
Token: SeIncBasePriorityPrivilege	4300	svhost.exe
Token: 33	4300	svhost.exe
Token: SeIncBasePriorityPrivilege	4300	svhost.exe
Token: 33	4300	svhost.exe
Token: SeIncBasePriorityPrivilege	4300	svhost.exe
Token: 33	4300	svhost.exe
Token: SeIncBasePriorityPrivilege	4300	svhost.exe
Token: 33	4300	svhost.exe
Token: SeIncBasePriorityPrivilege	4300	svhost.exe
Token: 33	4300	svhost.exe
Token: SeIncBasePriorityPrivilege	4300	svhost.exe
Token: 33	4300	svhost.exe
Token: SeIncBasePriorityPrivilege	4300	svhost.exe
Token: 33	4300	svhost.exe
Token: SeIncBasePriorityPrivilege	4300	svhost.exe
Token: 33	4300	svhost.exe
Token: SeIncBasePriorityPrivilege	4300	svhost.exe
Token: 33	4300	svhost.exe
Token: SeIncBasePriorityPrivilege	4300	svhost.exe
Token: 33	788	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	788	AUDIODG.EXE
Token: 33	4300	svhost.exe
Token: SeIncBasePriorityPrivilege	4300	svhost.exe
Token: 33	4300	svhost.exe
Token: SeIncBasePriorityPrivilege	4300	svhost.exe
Token: SeShutdownPrivilege	4300	svhost.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

New Client.execmd.exesvhost.exe

description	pid	Process	procid_target
PID 2600 wrote to memory of 4300	2600	New Client.exe	81
PID 2600 wrote to memory of 4300	2600	New Client.exe	81
PID 2600 wrote to memory of 4300	2600	New Client.exe	81
PID 2600 wrote to memory of 5012	2600	New Client.exe	82
PID 2600 wrote to memory of 5012	2600	New Client.exe	82
PID 2600 wrote to memory of 5012	2600	New Client.exe	82
PID 5012 wrote to memory of 2436	5012	cmd.exe	84
PID 5012 wrote to memory of 2436	5012	cmd.exe	84
PID 5012 wrote to memory of 2436	5012	cmd.exe	84
PID 4300 wrote to memory of 404	4300	svhost.exe	85
PID 4300 wrote to memory of 404	4300	svhost.exe	85
PID 4300 wrote to memory of 404	4300	svhost.exe	85
PID 4300 wrote to memory of 3320	4300	svhost.exe	87
PID 4300 wrote to memory of 3320	4300	svhost.exe	87
PID 4300 wrote to memory of 3320	4300	svhost.exe	87
PID 4300 wrote to memory of 5092	4300	svhost.exe	89
PID 4300 wrote to memory of 5092	4300	svhost.exe	89
PID 4300 wrote to memory of 5092	4300	svhost.exe	89
PID 4300 wrote to memory of 3684	4300	svhost.exe	96
PID 4300 wrote to memory of 3684	4300	svhost.exe	96
PID 4300 wrote to memory of 3684	4300	svhost.exe	96

C:\Users\Admin\AppData\Local\Temp\New Client.exe
"C:\Users\Admin\AppData\Local\Temp\New Client.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2600
- C:\Users\Admin\AppData\Local\Temp\svhost.exe
  "C:\Users\Admin\AppData\Local\Temp\svhost.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4300
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /f im Wireshark.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    PID:404
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /delete /tn "MicrosoftEdgeUpdateTaskMachine" /f
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3320
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "MicrosoftEdgeUpdateTaskMachine" /tr C:\Users\Admin\AppData\Local\Temp\svhost.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:5092
- - C:\Users\Admin\AppData\Local\Temp\36363a6c3b044a46b3cc7104c0176d42.exe
    "C:\Users\Admin\AppData\Local\Temp\36363a6c3b044a46b3cc7104c0176d42.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:3684
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 5 & Del "C:\Users\Admin\AppData\Local\Temp\New Client.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5012
- - C:\Windows\SysWOW64\choice.exe
    choice /C Y /N /D Y /T 5
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2436

C:\Users\Admin\AppData\Local\Temp\svhost.exe
C:\Users\Admin\AppData\Local\Temp\svhost.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4424

C:\Users\Admin\AppData\Local\Temp\svhost.exe
C:\Users\Admin\AppData\Local\Temp\svhost.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1568

C:\Users\Admin\AppData\Local\Temp\svhost.exe
C:\Users\Admin\AppData\Local\Temp\svhost.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4600

C:\Users\Admin\AppData\Local\Temp\svhost.exe
C:\Users\Admin\AppData\Local\Temp\svhost.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1076

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x00000000000004AC 0x00000000000004D4
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:788

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\svhost.exe.log

Filesize
418B

MD5
be0f156c1e85296aedb6a369aecaad79

SHA1
c6bf4a0ca9dedc89d3e5c80dc719b192a7fb2d68

SHA256
5180fcf7402ced58140b920bf818eab64613a0e0ded1091eebf14cb57a80590a

SHA512
4968dd9c9647f15c9623736e207788e2a48bdd35419ef88b0a0563314baa373132093444280cb050c28ace657a22db703b55ba0803b1cb63232692cc6d3f0d2d

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

Filesize
65KB

MD5
adebf8218a6f1e5ace6965a397c58be8

SHA1
92af1426e006b354ac230f88c59eb813c73d9625

SHA256
99603c4aa08d90d8b53a010e07ca12ddbac2c72e1c5896534215d20ae14fbf30

SHA512
3dc12ef879a13f2554d3d422ddc9b73e579fe0927d0a4fea38d2cd457975ab4da12f0519e0bea87c7df096c6cae5b288947aa52470a44a4017884d36f333c3eb

Download Submit
C:\Users\Admin\AppData\Local\Temp\wekiltfyxw.gif

Filesize
422KB

MD5
705a10144ffd51597b863af7b6dc6761

SHA1
68e3ff4a0c5c498e958431cc4379f33042900194

SHA256
cbc8a31345ac302681cac85e5347de1ffcbaa12bdc50c679ecf99cda7fc5157e

SHA512
00685116a9471c2f95534932eedf29e70c0486cdb16235770ff3ab8655396ead19378c29f57f298ac2d17e202ed8e75b4ecab282a1be4cb40dd27774568107a3

Download Submit
memory/2600-0-0x000000007511E000-0x000000007511F000-memory.dmp

Filesize
4KB

Download
memory/2600-1-0x0000000000BA0000-0x0000000000BB6000-memory.dmp

Filesize
88KB

Download
memory/2600-2-0x00000000054C0000-0x000000000555C000-memory.dmp

Filesize
624KB

Download
memory/2600-3-0x0000000005BB0000-0x0000000006156000-memory.dmp

Filesize
5.6MB

Download
memory/3684-48-0x0000000000400000-0x0000000003AEC000-memory.dmp

Filesize
54.9MB

Download
memory/4300-18-0x00000000056E0000-0x00000000056EA000-memory.dmp

Filesize
40KB

Download
memory/4300-19-0x0000000005AE0000-0x0000000005B46000-memory.dmp

Filesize
408KB

Download
memory/4300-20-0x0000000006850000-0x0000000006868000-memory.dmp

Filesize
96KB

Download
memory/4300-21-0x0000000075110000-0x00000000758C1000-memory.dmp

Filesize
7.7MB

Download
memory/4300-23-0x0000000075110000-0x00000000758C1000-memory.dmp

Filesize
7.7MB

Download
memory/4300-17-0x0000000075110000-0x00000000758C1000-memory.dmp

Filesize
7.7MB

Download
memory/4300-29-0x0000000001620000-0x000000000162E000-memory.dmp

Filesize
56KB

Download
memory/4300-30-0x00000000015D0000-0x00000000015F2000-memory.dmp

Filesize
136KB

Download
memory/4300-16-0x00000000058F0000-0x0000000005982000-memory.dmp

Filesize
584KB

Download
memory/4300-15-0x0000000075110000-0x00000000758C1000-memory.dmp

Filesize
7.7MB

Download