njrat | 578bd705fdf85e864f09780e885c2a04305a719038b66b2ff5639bf2572600de

Analysis

max time kernel
149s
max time network
123s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
20-12-2024 16:51

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General

Target

a.exe
Size

165KB
MD5

ab291dfdae1f44bd81ec75de9dd657d6
SHA1

3cfca0456d8037e9759bce00991bd06d6dab8c86
SHA256

578bd705fdf85e864f09780e885c2a04305a719038b66b2ff5639bf2572600de
SHA512

71239480308c81ff5f4cde60cb54d05e37cb966ed276dd01cd70536728474d5f412aada83504890c065b6e34ff354fc5920f12b9ccd9a11875711fcffffc5cea
SSDEEP

3072:fP8VpD/T68Q8wsWMS1kDGo/JzlJCFEw2iNb0Zr15bO:fP8V2f1k7/JBYW/ebmO

Score

10^/10

njrat discovery persistence trojan

Malware Config

Signatures

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

Executes dropped EXE 3 IoCs

pid	Process
2840	x64dbg.exe
1648	x64dbg.exe
2988	x64dbg.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-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\x64dbg.exe = "\"C:\\Windows\\x64dbg.exe\" .."	x64dbg.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\x64dbg.exe = "\"C:\\Windows\\x64dbg.exe\" .."	x64dbg.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\x64dbg.exe	x64dbg.exe
File created	C:\Windows\x64dbg.exe	a.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

description	ioc	Process
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	x64dbg.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	x64dbg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	x64dbg.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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 4 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
3008	schtasks.exe
2956	schtasks.exe
2360	schtasks.exe
2052	schtasks.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	2840	x64dbg.exe
Token: 33	2840	x64dbg.exe
Token: SeIncBasePriorityPrivilege	2840	x64dbg.exe
Token: 33	2840	x64dbg.exe
Token: SeIncBasePriorityPrivilege	2840	x64dbg.exe
Token: 33	2840	x64dbg.exe
Token: SeIncBasePriorityPrivilege	2840	x64dbg.exe
Token: 33	2840	x64dbg.exe
Token: SeIncBasePriorityPrivilege	2840	x64dbg.exe
Token: 33	2840	x64dbg.exe
Token: SeIncBasePriorityPrivilege	2840	x64dbg.exe
Token: 33	2840	x64dbg.exe
Token: SeIncBasePriorityPrivilege	2840	x64dbg.exe
Token: 33	2840	x64dbg.exe
Token: SeIncBasePriorityPrivilege	2840	x64dbg.exe
Token: 33	2840	x64dbg.exe
Token: SeIncBasePriorityPrivilege	2840	x64dbg.exe
Token: 33	2840	x64dbg.exe
Token: SeIncBasePriorityPrivilege	2840	x64dbg.exe
Token: 33	2840	x64dbg.exe
Token: SeIncBasePriorityPrivilege	2840	x64dbg.exe
Token: 33	2840	x64dbg.exe
Token: SeIncBasePriorityPrivilege	2840	x64dbg.exe
Token: 33	2840	x64dbg.exe
Token: SeIncBasePriorityPrivilege	2840	x64dbg.exe
Token: 33	2840	x64dbg.exe
Token: SeIncBasePriorityPrivilege	2840	x64dbg.exe
Token: 33	2840	x64dbg.exe
Token: SeIncBasePriorityPrivilege	2840	x64dbg.exe
Token: 33	2840	x64dbg.exe
Token: SeIncBasePriorityPrivilege	2840	x64dbg.exe
Token: 33	2840	x64dbg.exe
Token: SeIncBasePriorityPrivilege	2840	x64dbg.exe
Token: 33	2840	x64dbg.exe
Token: SeIncBasePriorityPrivilege	2840	x64dbg.exe

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 1048 wrote to memory of 2612	1048	a.exe	30
PID 1048 wrote to memory of 2612	1048	a.exe	30
PID 1048 wrote to memory of 2612	1048	a.exe	30
PID 1048 wrote to memory of 2612	1048	a.exe	30
PID 1048 wrote to memory of 3008	1048	a.exe	32
PID 1048 wrote to memory of 3008	1048	a.exe	32
PID 1048 wrote to memory of 3008	1048	a.exe	32
PID 1048 wrote to memory of 3008	1048	a.exe	32
PID 1048 wrote to memory of 2840	1048	a.exe	34
PID 1048 wrote to memory of 2840	1048	a.exe	34
PID 1048 wrote to memory of 2840	1048	a.exe	34
PID 1048 wrote to memory of 2840	1048	a.exe	34
PID 2840 wrote to memory of 2816	2840	x64dbg.exe	35
PID 2840 wrote to memory of 2816	2840	x64dbg.exe	35
PID 2840 wrote to memory of 2816	2840	x64dbg.exe	35
PID 2840 wrote to memory of 2816	2840	x64dbg.exe	35
PID 2840 wrote to memory of 2956	2840	x64dbg.exe	37
PID 2840 wrote to memory of 2956	2840	x64dbg.exe	37
PID 2840 wrote to memory of 2956	2840	x64dbg.exe	37
PID 2840 wrote to memory of 2956	2840	x64dbg.exe	37
PID 2228 wrote to memory of 1648	2228	taskeng.exe	41
PID 2228 wrote to memory of 1648	2228	taskeng.exe	41
PID 2228 wrote to memory of 1648	2228	taskeng.exe	41
PID 2228 wrote to memory of 1648	2228	taskeng.exe	41
PID 1648 wrote to memory of 1420	1648	x64dbg.exe	42
PID 1648 wrote to memory of 1420	1648	x64dbg.exe	42
PID 1648 wrote to memory of 1420	1648	x64dbg.exe	42
PID 1648 wrote to memory of 1420	1648	x64dbg.exe	42
PID 1648 wrote to memory of 2360	1648	x64dbg.exe	44
PID 1648 wrote to memory of 2360	1648	x64dbg.exe	44
PID 1648 wrote to memory of 2360	1648	x64dbg.exe	44
PID 1648 wrote to memory of 2360	1648	x64dbg.exe	44
PID 2228 wrote to memory of 2988	2228	taskeng.exe	46
PID 2228 wrote to memory of 2988	2228	taskeng.exe	46
PID 2228 wrote to memory of 2988	2228	taskeng.exe	46
PID 2228 wrote to memory of 2988	2228	taskeng.exe	46
PID 2988 wrote to memory of 2448	2988	x64dbg.exe	47
PID 2988 wrote to memory of 2448	2988	x64dbg.exe	47
PID 2988 wrote to memory of 2448	2988	x64dbg.exe	47
PID 2988 wrote to memory of 2448	2988	x64dbg.exe	47
PID 2988 wrote to memory of 2052	2988	x64dbg.exe	49
PID 2988 wrote to memory of 2052	2988	x64dbg.exe	49
PID 2988 wrote to memory of 2052	2988	x64dbg.exe	49
PID 2988 wrote to memory of 2052	2988	x64dbg.exe	49

C:\Users\Admin\AppData\Local\Temp\a.exe
"C:\Users\Admin\AppData\Local\Temp\a.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1048
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /Delete /tn NYAN /F
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2612
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /tn NYAN /tr "C:\Users\Admin\AppData\Local\Temp\a.exe" /sc minute /mo 1
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3008
- C:\Windows\x64dbg.exe
  "C:\Windows\x64dbg.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2840
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /Delete /tn NYAN /F
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2816
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /tn NYAN /tr "C:\Windows\x64dbg.exe" /sc minute /mo 1
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2956

C:\Windows\system32\taskeng.exe
taskeng.exe {B95CD0CC-FF52-4A39-ADF8-4D9E148365EF} S-1-5-21-1163522206-1469769407-485553996-1000:PJCSDMRP\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2228
- C:\Windows\x64dbg.exe
  C:\Windows\x64dbg.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1648
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /Delete /tn NYAN /F
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1420
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /tn NYAN /tr "C:\Windows\x64dbg.exe" /sc minute /mo 1
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2360
- C:\Windows\x64dbg.exe
  C:\Windows\x64dbg.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2988
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /Delete /tn NYAN /F
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2448
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /tn NYAN /tr "C:\Windows\x64dbg.exe" /sc minute /mo 1
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2052

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:\Windows\x64dbg.exe

Filesize
165KB

MD5
ab291dfdae1f44bd81ec75de9dd657d6

SHA1
3cfca0456d8037e9759bce00991bd06d6dab8c86

SHA256
578bd705fdf85e864f09780e885c2a04305a719038b66b2ff5639bf2572600de

SHA512
71239480308c81ff5f4cde60cb54d05e37cb966ed276dd01cd70536728474d5f412aada83504890c065b6e34ff354fc5920f12b9ccd9a11875711fcffffc5cea

Download Submit
memory/1048-0-0x0000000074B81000-0x0000000074B82000-memory.dmp

Filesize
4KB

Download
memory/1048-1-0x0000000074B80000-0x000000007512B000-memory.dmp

Filesize
5.7MB

Download
memory/1048-2-0x0000000074B80000-0x000000007512B000-memory.dmp

Filesize
5.7MB

Download
memory/1048-9-0x0000000074B80000-0x000000007512B000-memory.dmp

Filesize
5.7MB

Download
memory/2840-10-0x0000000074B80000-0x000000007512B000-memory.dmp

Filesize
5.7MB

Download
memory/2840-11-0x0000000074B80000-0x000000007512B000-memory.dmp

Filesize
5.7MB

Download
memory/2840-12-0x0000000074B80000-0x000000007512B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads