njrat | 3c44cbb99cc237c087e10c63fae5a7e8bb26c602241b0be79e9f984cdaba9781

General

Target

3c44cbb99cc237c087e10c63fae5a7e8bb26c602241b0be79e9f984cdaba9781N.exe
Size

43KB
MD5

7b5539d4e33d06c87cc73b529af14380
SHA1

d453ed2e3d34baf021af815ef512d990cc68d1a9
SHA256

3c44cbb99cc237c087e10c63fae5a7e8bb26c602241b0be79e9f984cdaba9781
SHA512

9e3a35be37590b323f3d1deb9921b8ec917986c396f89bdccc66fa2288a927544ca15c1ead5115f361f5d6fcf3bf10fda6f17824fd3cd89b4cfafe462221c673
SSDEEP

384:76ZyA4D4olYxOoyi0I7wycuEN88FQPzgIij+ZsNO3PlpJKkkjh/TzF7pWni/greT:8fouIli0gwjL8awuXQ/on/+L+

Score

10^/10

njrat hacked discovery persistence trojan

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

HacKed

C2

127.0.0.1:5555

Mutex

Windows Update

Attributes

reg_key
Windows Update
splitter
|Hassan|

Signatures

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

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Java update.exe	Dllhost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Java update.exe	Dllhost.exe

Executes dropped EXE 4 IoCs

pid	Process
2256	Server.exe
2872	Dllhost.exe
380	Server.exe
1748	Server.exe

Loads dropped DLL 2 IoCs

pid	Process
1672	3c44cbb99cc237c087e10c63fae5a7e8bb26c602241b0be79e9f984cdaba9781N.exe
2256	Server.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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Roaming\\Dllhost.exe\" .."	Dllhost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Roaming\\Dllhost.exe\" .."	Dllhost.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 6 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	Server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3c44cbb99cc237c087e10c63fae5a7e8bb26c602241b0be79e9f984cdaba9781N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Dllhost.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

pid	Process
2520	schtasks.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2256	Server.exe
2872	Dllhost.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeDebugPrivilege	2872	Dllhost.exe
Token: 33	2872	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2872	Dllhost.exe
Token: 33	2872	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2872	Dllhost.exe
Token: 33	2872	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2872	Dllhost.exe
Token: 33	2872	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2872	Dllhost.exe
Token: 33	2872	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2872	Dllhost.exe
Token: 33	2872	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2872	Dllhost.exe
Token: 33	2872	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2872	Dllhost.exe
Token: 33	2872	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2872	Dllhost.exe
Token: 33	2872	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2872	Dllhost.exe
Token: 33	2872	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2872	Dllhost.exe
Token: 33	2872	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2872	Dllhost.exe
Token: 33	2872	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2872	Dllhost.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1672 wrote to memory of 2256	1672	3c44cbb99cc237c087e10c63fae5a7e8bb26c602241b0be79e9f984cdaba9781N.exe	28
PID 1672 wrote to memory of 2256	1672	3c44cbb99cc237c087e10c63fae5a7e8bb26c602241b0be79e9f984cdaba9781N.exe	28
PID 1672 wrote to memory of 2256	1672	3c44cbb99cc237c087e10c63fae5a7e8bb26c602241b0be79e9f984cdaba9781N.exe	28
PID 1672 wrote to memory of 2256	1672	3c44cbb99cc237c087e10c63fae5a7e8bb26c602241b0be79e9f984cdaba9781N.exe	28
PID 2256 wrote to memory of 2872	2256	Server.exe	30
PID 2256 wrote to memory of 2872	2256	Server.exe	30
PID 2256 wrote to memory of 2872	2256	Server.exe	30
PID 2256 wrote to memory of 2872	2256	Server.exe	30
PID 2872 wrote to memory of 2520	2872	Dllhost.exe	31
PID 2872 wrote to memory of 2520	2872	Dllhost.exe	31
PID 2872 wrote to memory of 2520	2872	Dllhost.exe	31
PID 2872 wrote to memory of 2520	2872	Dllhost.exe	31
PID 3000 wrote to memory of 380	3000	taskeng.exe	34
PID 3000 wrote to memory of 380	3000	taskeng.exe	34
PID 3000 wrote to memory of 380	3000	taskeng.exe	34
PID 3000 wrote to memory of 380	3000	taskeng.exe	34
PID 3000 wrote to memory of 1748	3000	taskeng.exe	37
PID 3000 wrote to memory of 1748	3000	taskeng.exe	37
PID 3000 wrote to memory of 1748	3000	taskeng.exe	37
PID 3000 wrote to memory of 1748	3000	taskeng.exe	37

C:\Users\Admin\AppData\Local\Temp\3c44cbb99cc237c087e10c63fae5a7e8bb26c602241b0be79e9f984cdaba9781N.exe
"C:\Users\Admin\AppData\Local\Temp\3c44cbb99cc237c087e10c63fae5a7e8bb26c602241b0be79e9f984cdaba9781N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1672
- C:\Users\Admin\Desktop\Server.exe
  "C:\Users\Admin\Desktop\Server.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of WriteProcessMemory
  PID:2256
- - C:\Users\Admin\AppData\Roaming\Dllhost.exe
    "C:\Users\Admin\AppData\Roaming\Dllhost.exe"
    3⤵
    - Drops startup file
    - Executes dropped EXE
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2872
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /sc minute /mo 1 /tn Server /tr C:\Users\Admin\AppData\Local\Temp/Server.exe
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:2520

C:\Windows\system32\taskeng.exe
taskeng.exe {8B3F0851-9DA8-414E-820F-AF26CBB1C22D} S-1-5-21-312935884-697965778-3955649944-1000:MXQFNXLT\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:3000
- C:\Users\Admin\AppData\Local\Temp\Server.exe
  C:\Users\Admin\AppData\Local\Temp/Server.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:380
- C:\Users\Admin\AppData\Local\Temp\Server.exe
  C:\Users\Admin\AppData\Local\Temp/Server.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1748

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

System Information Discovery

1

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

\Users\Admin\Desktop\Server.exe

Filesize
43KB

MD5
1b46a5542b4758b914541297666f4673

SHA1
fea4e3965c2d046e906f15d552a993a2834264b5

SHA256
ece5d03a89a7039daacf406bc27fedfa90e25071e8810f07b6caeefac41a04e1

SHA512
0e07980e098f644c4a6adcfe348c3dcce99b6a22848a9e8506f691839869f465db2991573289aa4645c7c3b3640b966cf32c0e654ce084896a4de491a26f20d4

Download Submit
memory/380-23-0x0000000000800000-0x0000000000812000-memory.dmp

Filesize
72KB

Download
memory/1748-25-0x00000000009E0000-0x00000000009F2000-memory.dmp

Filesize
72KB

Download
memory/2256-7-0x000000007418E000-0x000000007418F000-memory.dmp

Filesize
4KB

Download
memory/2256-8-0x0000000000340000-0x0000000000352000-memory.dmp

Filesize
72KB

Download
memory/2256-9-0x0000000074180000-0x000000007486E000-memory.dmp

Filesize
6.9MB

Download
memory/2256-18-0x0000000074180000-0x000000007486E000-memory.dmp

Filesize
6.9MB

Download
memory/2872-17-0x0000000000A50000-0x0000000000A62000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads