njrat | 18d57def8a8508e9767383a47b26a31d30b4ed1d4fadc260d61810f32ea14a13

General

Target

DLLINJECTWORK.exe
Size

43KB
MD5

75f876f184505cc110923210adf581cc
SHA1

2670bf9724001fd9ba1370682c8deddb22d1a35c
SHA256

18d57def8a8508e9767383a47b26a31d30b4ed1d4fadc260d61810f32ea14a13
SHA512

345c6cbeba7d3db55dee9a4717dea12b32693b19f8588920e2841330ba821fe0fb85769c26cb4b3050d1f851b3bfd26ea14b3dae24be095658243141ae151f74
SSDEEP

384:GZy8tFgpWfxyiihvhAhjEhHSLizYIij+ZsNO3PlpJKkkjh/TzF7pWnD/greT0pqD:c7tWofYiYhcYy4uXQ/oO/+L

Score

10^/10

njrat assault discovery persistence trojan

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

assault

C2

pro-fundraising.gl.at.ply.gg:43768

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	ChromeUpdater.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Java update.exe	ChromeUpdater.exe

Executes dropped EXE 3 IoCs

pid	Process
2776	ChromeUpdater.exe
1928	Server.exe
572	Server.exe

Loads dropped DLL 1 IoCs

pid	Process
2640	DLLINJECTWORK.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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Roaming\\ChromeUpdater.exe\" .."	ChromeUpdater.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Roaming\\ChromeUpdater.exe\" .."	ChromeUpdater.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 5 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	DLLINJECTWORK.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ChromeUpdater.exe
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

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
2800	schtasks.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2640	DLLINJECTWORK.exe
2776	ChromeUpdater.exe

Suspicious use of AdjustPrivilegeToken 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	2776	ChromeUpdater.exe
Token: 33	2776	ChromeUpdater.exe
Token: SeIncBasePriorityPrivilege	2776	ChromeUpdater.exe
Token: 33	2776	ChromeUpdater.exe
Token: SeIncBasePriorityPrivilege	2776	ChromeUpdater.exe
Token: 33	2776	ChromeUpdater.exe
Token: SeIncBasePriorityPrivilege	2776	ChromeUpdater.exe
Token: 33	2776	ChromeUpdater.exe
Token: SeIncBasePriorityPrivilege	2776	ChromeUpdater.exe
Token: 33	2776	ChromeUpdater.exe
Token: SeIncBasePriorityPrivilege	2776	ChromeUpdater.exe
Token: 33	2776	ChromeUpdater.exe
Token: SeIncBasePriorityPrivilege	2776	ChromeUpdater.exe
Token: 33	2776	ChromeUpdater.exe
Token: SeIncBasePriorityPrivilege	2776	ChromeUpdater.exe
Token: 33	2776	ChromeUpdater.exe
Token: SeIncBasePriorityPrivilege	2776	ChromeUpdater.exe
Token: 33	2776	ChromeUpdater.exe
Token: SeIncBasePriorityPrivilege	2776	ChromeUpdater.exe
Token: 33	2776	ChromeUpdater.exe
Token: SeIncBasePriorityPrivilege	2776	ChromeUpdater.exe
Token: 33	2776	ChromeUpdater.exe
Token: SeIncBasePriorityPrivilege	2776	ChromeUpdater.exe
Token: 33	2776	ChromeUpdater.exe
Token: SeIncBasePriorityPrivilege	2776	ChromeUpdater.exe
Token: 33	2776	ChromeUpdater.exe
Token: SeIncBasePriorityPrivilege	2776	ChromeUpdater.exe
Token: 33	2776	ChromeUpdater.exe
Token: SeIncBasePriorityPrivilege	2776	ChromeUpdater.exe
Token: 33	2776	ChromeUpdater.exe
Token: SeIncBasePriorityPrivilege	2776	ChromeUpdater.exe
Token: 33	2776	ChromeUpdater.exe
Token: SeIncBasePriorityPrivilege	2776	ChromeUpdater.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2640 wrote to memory of 2776	2640	DLLINJECTWORK.exe	30
PID 2640 wrote to memory of 2776	2640	DLLINJECTWORK.exe	30
PID 2640 wrote to memory of 2776	2640	DLLINJECTWORK.exe	30
PID 2640 wrote to memory of 2776	2640	DLLINJECTWORK.exe	30
PID 2640 wrote to memory of 2776	2640	DLLINJECTWORK.exe	30
PID 2640 wrote to memory of 2776	2640	DLLINJECTWORK.exe	30
PID 2640 wrote to memory of 2776	2640	DLLINJECTWORK.exe	30
PID 2776 wrote to memory of 2800	2776	ChromeUpdater.exe	31
PID 2776 wrote to memory of 2800	2776	ChromeUpdater.exe	31
PID 2776 wrote to memory of 2800	2776	ChromeUpdater.exe	31
PID 2776 wrote to memory of 2800	2776	ChromeUpdater.exe	31
PID 316 wrote to memory of 1928	316	taskeng.exe	34
PID 316 wrote to memory of 1928	316	taskeng.exe	34
PID 316 wrote to memory of 1928	316	taskeng.exe	34
PID 316 wrote to memory of 1928	316	taskeng.exe	34
PID 316 wrote to memory of 572	316	taskeng.exe	35
PID 316 wrote to memory of 572	316	taskeng.exe	35
PID 316 wrote to memory of 572	316	taskeng.exe	35
PID 316 wrote to memory of 572	316	taskeng.exe	35

C:\Users\Admin\AppData\Local\Temp\DLLINJECTWORK.exe
"C:\Users\Admin\AppData\Local\Temp\DLLINJECTWORK.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2640
- C:\Users\Admin\AppData\Roaming\ChromeUpdater.exe
  "C:\Users\Admin\AppData\Roaming\ChromeUpdater.exe"
  2⤵
  - 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:2776
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn Server /tr C:\Users\Admin\AppData\Local\Temp/Server.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2800

C:\Windows\system32\taskeng.exe
taskeng.exe {3CB49672-CE3D-43F8-A8C6-C7D335D60FF2} S-1-5-21-2703099537-420551529-3771253338-1000:XECUDNCD\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:316
- 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:1928
- 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:572

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\AppData\Roaming\ChromeUpdater.exe

Filesize
43KB

MD5
75f876f184505cc110923210adf581cc

SHA1
2670bf9724001fd9ba1370682c8deddb22d1a35c

SHA256
18d57def8a8508e9767383a47b26a31d30b4ed1d4fadc260d61810f32ea14a13

SHA512
345c6cbeba7d3db55dee9a4717dea12b32693b19f8588920e2841330ba821fe0fb85769c26cb4b3050d1f851b3bfd26ea14b3dae24be095658243141ae151f74

Download Submit
memory/572-22-0x00000000000C0000-0x00000000000D2000-memory.dmp

Filesize
72KB

Download
memory/1928-20-0x00000000000D0000-0x00000000000E2000-memory.dmp

Filesize
72KB

Download
memory/2640-0-0x00000000744EE000-0x00000000744EF000-memory.dmp

Filesize
4KB

Download
memory/2640-1-0x0000000000C90000-0x0000000000CA2000-memory.dmp

Filesize
72KB

Download
memory/2640-2-0x00000000744E0000-0x0000000074BCE000-memory.dmp

Filesize
6.9MB

Download
memory/2640-11-0x00000000744E0000-0x0000000074BCE000-memory.dmp

Filesize
6.9MB

Download
memory/2776-10-0x00000000744E0000-0x0000000074BCE000-memory.dmp

Filesize
6.9MB

Download
memory/2776-12-0x0000000000040000-0x0000000000052000-memory.dmp

Filesize
72KB

Download
memory/2776-13-0x00000000744E0000-0x0000000074BCE000-memory.dmp

Filesize
6.9MB

Download
memory/2776-16-0x00000000744E0000-0x0000000074BCE000-memory.dmp

Filesize
6.9MB

Download
memory/2776-17-0x00000000744E0000-0x0000000074BCE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads