njrat | a257729469dd5a70d282e08c5bd87e6e55540e37728368204218745840ffe76e

General

Target

New Client.exe
Size

65KB
MD5

8cf4617583acf1f05c867d91dfa88e29
SHA1

5fdf26cbad2eb6d466bc04199b42b2d40df3159c
SHA256

a257729469dd5a70d282e08c5bd87e6e55540e37728368204218745840ffe76e
SHA512

1d0513b1a2a81edb244c1d14ab3ec58ca168be562964251b32857a117b66c9fa4de075ee5bbb1f87caf4175c0c9e2414ffe6548aa22354ed2f5c9b480395add6
SSDEEP

1536:wfqK4Tm4BoN36t4QviFw1AjHkBnvbKfLteF3nLrB9z3nIaF9brS9vM:wfqK4C4BoN36t4QviFC8EBnefWl9zYaH

Score

10^/10

njrat hacked discovery persistence trojan

Malware Config

Extracted

Family

njrat

Version

Platinum

Botnet

HacKed

C2

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

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

New Client.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1263212995-3575756360-1418101905-1000\Control Panel\International\Geo\Nation	New Client.exe

Executes dropped EXE 3 IoCs

Processes:

svhost.exesvhost.exesvhost.exe

pid	Process
2188	svhost.exe
408	svhost.exe
4808	svhost.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-1-5-21-1263212995-3575756360-1418101905-1000\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 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:

New Client.exetaskkill.exesvhost.exesvhost.exesvhost.execmd.exechoice.exeschtasks.exeschtasks.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	taskkill.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	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

Kills process with taskkill 1 IoCs

evasion

Processes:

taskkill.exe

pid	Process
1036	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
520	schtasks.exe

Suspicious use of AdjustPrivilegeToken 33 IoCs

Processes:

svhost.exe

description	pid	Process
Token: SeDebugPrivilege	2188	svhost.exe
Token: 33	2188	svhost.exe
Token: SeIncBasePriorityPrivilege	2188	svhost.exe
Token: 33	2188	svhost.exe
Token: SeIncBasePriorityPrivilege	2188	svhost.exe
Token: 33	2188	svhost.exe
Token: SeIncBasePriorityPrivilege	2188	svhost.exe
Token: 33	2188	svhost.exe
Token: SeIncBasePriorityPrivilege	2188	svhost.exe
Token: 33	2188	svhost.exe
Token: SeIncBasePriorityPrivilege	2188	svhost.exe
Token: 33	2188	svhost.exe
Token: SeIncBasePriorityPrivilege	2188	svhost.exe
Token: 33	2188	svhost.exe
Token: SeIncBasePriorityPrivilege	2188	svhost.exe
Token: 33	2188	svhost.exe
Token: SeIncBasePriorityPrivilege	2188	svhost.exe
Token: 33	2188	svhost.exe
Token: SeIncBasePriorityPrivilege	2188	svhost.exe
Token: 33	2188	svhost.exe
Token: SeIncBasePriorityPrivilege	2188	svhost.exe
Token: 33	2188	svhost.exe
Token: SeIncBasePriorityPrivilege	2188	svhost.exe
Token: 33	2188	svhost.exe
Token: SeIncBasePriorityPrivilege	2188	svhost.exe
Token: 33	2188	svhost.exe
Token: SeIncBasePriorityPrivilege	2188	svhost.exe
Token: 33	2188	svhost.exe
Token: SeIncBasePriorityPrivilege	2188	svhost.exe
Token: 33	2188	svhost.exe
Token: SeIncBasePriorityPrivilege	2188	svhost.exe
Token: 33	2188	svhost.exe
Token: SeIncBasePriorityPrivilege	2188	svhost.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

New Client.execmd.exesvhost.exe

description	pid	Process	procid_target
PID 3168 wrote to memory of 2188	3168	New Client.exe	82
PID 3168 wrote to memory of 2188	3168	New Client.exe	82
PID 3168 wrote to memory of 2188	3168	New Client.exe	82
PID 3168 wrote to memory of 3636	3168	New Client.exe	83
PID 3168 wrote to memory of 3636	3168	New Client.exe	83
PID 3168 wrote to memory of 3636	3168	New Client.exe	83
PID 3636 wrote to memory of 1976	3636	cmd.exe	85
PID 3636 wrote to memory of 1976	3636	cmd.exe	85
PID 3636 wrote to memory of 1976	3636	cmd.exe	85
PID 2188 wrote to memory of 1036	2188	svhost.exe	86
PID 2188 wrote to memory of 1036	2188	svhost.exe	86
PID 2188 wrote to memory of 1036	2188	svhost.exe	86
PID 2188 wrote to memory of 1060	2188	svhost.exe	88
PID 2188 wrote to memory of 1060	2188	svhost.exe	88
PID 2188 wrote to memory of 1060	2188	svhost.exe	88
PID 2188 wrote to memory of 520	2188	svhost.exe	90
PID 2188 wrote to memory of 520	2188	svhost.exe	90
PID 2188 wrote to memory of 520	2188	svhost.exe	90

C:\Users\Admin\AppData\Local\Temp\New Client.exe
"C:\Users\Admin\AppData\Local\Temp\New Client.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3168
- 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:2188
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /f im Wireshark.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    PID:1036
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /delete /tn "MicrosoftEdgeUpdateTaskMachine" /f
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1060
- - 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:520
- 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:3636
- - C:\Windows\SysWOW64\choice.exe
    choice /C Y /N /D Y /T 5
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1976

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:408

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:4808

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

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\Microsoft\CLR_v4.0_32\UsageLogs\svhost.exe.log

Filesize
418B

MD5
5d4a9519354aeb1aa1dc3623e8eba141

SHA1
40dc75a5da413db2c24f0b71e3268b1b092d58b4

SHA256
6af753e859a4e27e635cc7952c5c3905f09f01f488c4559736efe3a62946767b

SHA512
66cbb607b1a1c4ad07c82d3769456b79dc03bac5ba46e3528ab36855d4e67fe15c89960579910b55c567270bb0e7612df311f15283884e9d3315f3bbda7c0681

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

Filesize
65KB

MD5
8cf4617583acf1f05c867d91dfa88e29

SHA1
5fdf26cbad2eb6d466bc04199b42b2d40df3159c

SHA256
a257729469dd5a70d282e08c5bd87e6e55540e37728368204218745840ffe76e

SHA512
1d0513b1a2a81edb244c1d14ab3ec58ca168be562964251b32857a117b66c9fa4de075ee5bbb1f87caf4175c0c9e2414ffe6548aa22354ed2f5c9b480395add6

Download Submit
memory/2188-20-0x0000000005350000-0x000000000535A000-memory.dmp

Filesize
40KB

Download
memory/2188-17-0x00000000749A0000-0x0000000075151000-memory.dmp

Filesize
7.7MB

Download
memory/2188-18-0x00000000749A0000-0x0000000075151000-memory.dmp

Filesize
7.7MB

Download
memory/2188-19-0x0000000005390000-0x0000000005422000-memory.dmp

Filesize
584KB

Download
memory/2188-21-0x00000000054A0000-0x0000000005506000-memory.dmp

Filesize
408KB

Download
memory/2188-22-0x00000000749A0000-0x0000000075151000-memory.dmp

Filesize
7.7MB

Download
memory/2188-23-0x0000000006C90000-0x0000000006CA8000-memory.dmp

Filesize
96KB

Download
memory/2188-24-0x00000000749A0000-0x0000000075151000-memory.dmp

Filesize
7.7MB

Download
memory/3168-3-0x00000000059E0000-0x0000000005F86000-memory.dmp

Filesize
5.6MB

Download
memory/3168-2-0x0000000005390000-0x000000000542C000-memory.dmp

Filesize
624KB

Download
memory/3168-12-0x00000000749AE000-0x00000000749AF000-memory.dmp

Filesize
4KB

Download
memory/3168-0-0x00000000749AE000-0x00000000749AF000-memory.dmp

Filesize
4KB

Download
memory/3168-1-0x0000000000980000-0x0000000000996000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads