njrat | 35b46563f4d1ef02e7e2a315df8bbf0f8c2e49803856af0cf1418ea19fba58cf

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
13/01/2024, 15:05

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General

Target

start.exe
Size

93KB
MD5

937286297fbc003e6a69fdc0f02ce8b0
SHA1

2ebd595bbb357264649f17f8b066941f05befefb
SHA256

35b46563f4d1ef02e7e2a315df8bbf0f8c2e49803856af0cf1418ea19fba58cf
SHA512

9c26792ef5102c7215afae12264e2eca6c2a0f9ed67d9b84918b720f4ca81b5fa2cdb59a28f4089e25abb93243a3d90e98d45dda9862286e2e074708eaf405f4
SSDEEP

1536:t8NBNvGfr2p4dTc/hDjEwzGi1dDmD4gS:t8Yfr2p4dI/Gi1dwh

Score

10^/10

njrat hacked evasion trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

hakim32.ddns.net:2000

dead-reviewer.gl.at.ply.gg:60161

Mutex

60742add55fe12a61a5fe6a3cf32e5c0

Attributes

reg_key
60742add55fe12a61a5fe6a3cf32e5c0
splitter
|'|'|

Signatures

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

Modifies Windows Firewall 1 TTPs 2 IoCs

evasion

Windows Service

T1543.003

pid	Process
1860	netsh.exe
3052	netsh.exe

Drops startup file 6 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Explower.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Explower.exe	server.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.exe	server.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\60742add55fe12a61a5fe6a3cf32e5c0Windows Update.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\60742add55fe12a61a5fe6a3cf32e5c0Windows Update.exe	server.exe

Executes dropped EXE 1 IoCs

pid	Process
1748	server.exe

Loads dropped DLL 2 IoCs

pid	Process
3040	start.exe
3040	start.exe

Drops autorun.inf file 1 TTPs 4 IoCs

Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media

T1091

description	ioc	Process
File opened for modification	C:\autorun.inf	server.exe
File created	F:\autorun.inf	server.exe
File opened for modification	F:\autorun.inf	server.exe
File created	C:\autorun.inf	server.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Explower.exe	server.exe
File opened for modification	C:\Windows\SysWOW64\Explower.exe	server.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Explower.exe	server.exe
File opened for modification	C:\Program Files (x86)\Explower.exe	server.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2804	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe
1748	server.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1748	server.exe

Suspicious use of AdjustPrivilegeToken 19 IoCs

description	pid	Process
Token: SeDebugPrivilege	1748	server.exe
Token: 33	1748	server.exe
Token: SeIncBasePriorityPrivilege	1748	server.exe
Token: 33	1748	server.exe
Token: SeIncBasePriorityPrivilege	1748	server.exe
Token: 33	1748	server.exe
Token: SeIncBasePriorityPrivilege	1748	server.exe
Token: 33	1748	server.exe
Token: SeIncBasePriorityPrivilege	1748	server.exe
Token: 33	1748	server.exe
Token: SeIncBasePriorityPrivilege	1748	server.exe
Token: 33	1748	server.exe
Token: SeIncBasePriorityPrivilege	1748	server.exe
Token: 33	1748	server.exe
Token: SeIncBasePriorityPrivilege	1748	server.exe
Token: 33	1748	server.exe
Token: SeIncBasePriorityPrivilege	1748	server.exe
Token: 33	1748	server.exe
Token: SeIncBasePriorityPrivilege	1748	server.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 3040 wrote to memory of 2224	3040	start.exe	28
PID 3040 wrote to memory of 2224	3040	start.exe	28
PID 3040 wrote to memory of 2224	3040	start.exe	28
PID 3040 wrote to memory of 2224	3040	start.exe	28
PID 3040 wrote to memory of 1748	3040	start.exe	29
PID 3040 wrote to memory of 1748	3040	start.exe	29
PID 3040 wrote to memory of 1748	3040	start.exe	29
PID 3040 wrote to memory of 1748	3040	start.exe	29
PID 1748 wrote to memory of 3052	1748	server.exe	31
PID 1748 wrote to memory of 3052	1748	server.exe	31
PID 1748 wrote to memory of 3052	1748	server.exe	31
PID 1748 wrote to memory of 3052	1748	server.exe	31
PID 1748 wrote to memory of 1860	1748	server.exe	35
PID 1748 wrote to memory of 1860	1748	server.exe	35
PID 1748 wrote to memory of 1860	1748	server.exe	35
PID 1748 wrote to memory of 1860	1748	server.exe	35
PID 1748 wrote to memory of 964	1748	server.exe	37
PID 1748 wrote to memory of 964	1748	server.exe	37
PID 1748 wrote to memory of 964	1748	server.exe	37
PID 1748 wrote to memory of 964	1748	server.exe	37
PID 964 wrote to memory of 2804	964	cmd.exe	39
PID 964 wrote to memory of 2804	964	cmd.exe	39
PID 964 wrote to memory of 2804	964	cmd.exe	39
PID 964 wrote to memory of 2804	964	cmd.exe	39

C:\Users\Admin\AppData\Local\Temp\start.exe
"C:\Users\Admin\AppData\Local\Temp\start.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3040
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
  dw20.exe -x -s 236
  2⤵
  PID:2224
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Drops autorun.inf file
  - Drops file in System32 directory
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1748
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:3052
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall delete allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe"
    3⤵
    - Modifies Windows Firewall
    PID:1860
- - C:\Windows\SysWOW64\cmd.exe
    cmd.exe /c ping 0 -n 2 & del "C:\Users\Admin\AppData\Local\Temp\server.exe"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:964
  - - C:\Windows\SysWOW64\PING.EXE
      ping 0 -n 2
      4⤵
      Runs ping.exe
      PID:2804

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Replication Through Removable Media

T1091

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Credential Access

Discovery

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Replication Through Removable Media

T1091

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\server.exe

Filesize
92KB

MD5
f2b3979cb5c827e34c5edff1beef5967

SHA1
bc8d214c05d33a20319cf31eafe39b2f2e26a186

SHA256
e42c3cac193d4e4b359b357e0e021ab15f66220fc2e231bfd1d59d7a157d1e02

SHA512
453fb6fdbfd7b37740c40912170a3f1c622b02e88d76017f2858a185b4c90d86d40eec7f30bb5dc14c01ab15c2189e8109d8ea850a7cc19ee18abef32466bf0e

Download Submit
\Users\Admin\AppData\Local\Temp\server.exe

Filesize
93KB

MD5
937286297fbc003e6a69fdc0f02ce8b0

SHA1
2ebd595bbb357264649f17f8b066941f05befefb

SHA256
35b46563f4d1ef02e7e2a315df8bbf0f8c2e49803856af0cf1418ea19fba58cf

SHA512
9c26792ef5102c7215afae12264e2eca6c2a0f9ed67d9b84918b720f4ca81b5fa2cdb59a28f4089e25abb93243a3d90e98d45dda9862286e2e074708eaf405f4

Download Submit
memory/1748-17-0x0000000000B00000-0x0000000000B40000-memory.dmp

Filesize
256KB

Download
memory/1748-18-0x0000000074C10000-0x00000000751BB000-memory.dmp

Filesize
5.7MB

Download
memory/1748-16-0x0000000074C10000-0x00000000751BB000-memory.dmp

Filesize
5.7MB

Download
memory/1748-56-0x0000000074C10000-0x00000000751BB000-memory.dmp

Filesize
5.7MB

Download
memory/1748-57-0x0000000000B00000-0x0000000000B40000-memory.dmp

Filesize
256KB

Download
memory/1748-60-0x0000000000B00000-0x0000000000B40000-memory.dmp

Filesize
256KB

Download
memory/1748-59-0x0000000074C10000-0x00000000751BB000-memory.dmp

Filesize
5.7MB

Download
memory/2224-3-0x0000000000480000-0x0000000000481000-memory.dmp

Filesize
4KB

Download
memory/3040-15-0x0000000074C10000-0x00000000751BB000-memory.dmp

Filesize
5.7MB

Download
memory/3040-0-0x0000000074C10000-0x00000000751BB000-memory.dmp

Filesize
5.7MB

Download
memory/3040-2-0x0000000000600000-0x0000000000640000-memory.dmp

Filesize
256KB

Download
memory/3040-1-0x0000000074C10000-0x00000000751BB000-memory.dmp

Filesize
5.7MB

Download