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

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	DLLINJECTWORK.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 3 IoCs

pid	Process
1268	ChromeUpdater.exe
1772	Server.exe
3952	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-1-5-21-4050598569-1597076380-177084960-1000\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
3156	schtasks.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
1396	DLLINJECTWORK.exe
1268	ChromeUpdater.exe

Suspicious use of AdjustPrivilegeToken 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	1268	ChromeUpdater.exe
Token: 33	1268	ChromeUpdater.exe
Token: SeIncBasePriorityPrivilege	1268	ChromeUpdater.exe
Token: 33	1268	ChromeUpdater.exe
Token: SeIncBasePriorityPrivilege	1268	ChromeUpdater.exe
Token: 33	1268	ChromeUpdater.exe
Token: SeIncBasePriorityPrivilege	1268	ChromeUpdater.exe
Token: 33	1268	ChromeUpdater.exe
Token: SeIncBasePriorityPrivilege	1268	ChromeUpdater.exe
Token: 33	1268	ChromeUpdater.exe
Token: SeIncBasePriorityPrivilege	1268	ChromeUpdater.exe
Token: 33	1268	ChromeUpdater.exe
Token: SeIncBasePriorityPrivilege	1268	ChromeUpdater.exe
Token: 33	1268	ChromeUpdater.exe
Token: SeIncBasePriorityPrivilege	1268	ChromeUpdater.exe
Token: 33	1268	ChromeUpdater.exe
Token: SeIncBasePriorityPrivilege	1268	ChromeUpdater.exe
Token: 33	1268	ChromeUpdater.exe
Token: SeIncBasePriorityPrivilege	1268	ChromeUpdater.exe
Token: 33	1268	ChromeUpdater.exe
Token: SeIncBasePriorityPrivilege	1268	ChromeUpdater.exe
Token: 33	1268	ChromeUpdater.exe
Token: SeIncBasePriorityPrivilege	1268	ChromeUpdater.exe
Token: 33	1268	ChromeUpdater.exe
Token: SeIncBasePriorityPrivilege	1268	ChromeUpdater.exe
Token: 33	1268	ChromeUpdater.exe
Token: SeIncBasePriorityPrivilege	1268	ChromeUpdater.exe
Token: 33	1268	ChromeUpdater.exe
Token: SeIncBasePriorityPrivilege	1268	ChromeUpdater.exe
Token: 33	1268	ChromeUpdater.exe
Token: SeIncBasePriorityPrivilege	1268	ChromeUpdater.exe
Token: 33	1268	ChromeUpdater.exe
Token: SeIncBasePriorityPrivilege	1268	ChromeUpdater.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1396 wrote to memory of 1268	1396	DLLINJECTWORK.exe	91
PID 1396 wrote to memory of 1268	1396	DLLINJECTWORK.exe	91
PID 1396 wrote to memory of 1268	1396	DLLINJECTWORK.exe	91
PID 1268 wrote to memory of 3156	1268	ChromeUpdater.exe	95
PID 1268 wrote to memory of 3156	1268	ChromeUpdater.exe	95
PID 1268 wrote to memory of 3156	1268	ChromeUpdater.exe	95

C:\Users\Admin\AppData\Local\Temp\DLLINJECTWORK.exe
"C:\Users\Admin\AppData\Local\Temp\DLLINJECTWORK.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1396
- 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:1268
- - 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:3156

C:\Users\Admin\AppData\Local\Temp\Server.exe
C:\Users\Admin\AppData\Local\Temp/Server.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1772

C:\Users\Admin\AppData\Local\Temp\Server.exe
C:\Users\Admin\AppData\Local\Temp/Server.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3952

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\Server.exe.log

Filesize
507B

MD5
25d1b50e7c0d451f3d850eb54d27ca05

SHA1
a238807715c70a335f54e80d4855644b21a9e870

SHA256
650faa13e983c9046c9030f63a5fa1c33900432ec7cb3762e015da2e7c5b34a5

SHA512
4223a26b2fabefdf1c01443ccc7bd887464d27f02694379895a040c66db472d541218d501f1c01e1bd31012d079a31baf24e20882c32cf652a09a74e3bf385f5

Download Submit
C:\Users\Admin\AppData\Roaming\ChromeUpdater.exe

Filesize
43KB

MD5
75f876f184505cc110923210adf581cc

SHA1
2670bf9724001fd9ba1370682c8deddb22d1a35c

SHA256
18d57def8a8508e9767383a47b26a31d30b4ed1d4fadc260d61810f32ea14a13

SHA512
345c6cbeba7d3db55dee9a4717dea12b32693b19f8588920e2841330ba821fe0fb85769c26cb4b3050d1f851b3bfd26ea14b3dae24be095658243141ae151f74

Download Submit
memory/1268-16-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/1268-22-0x00000000051F0000-0x00000000051FA000-memory.dmp

Filesize
40KB

Download
memory/1268-21-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/1268-20-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/1268-17-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/1396-4-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/1396-15-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/1396-5-0x0000000005000000-0x0000000005092000-memory.dmp

Filesize
584KB

Download
memory/1396-0-0x000000007476E000-0x000000007476F000-memory.dmp

Filesize
4KB

Download
memory/1396-3-0x0000000005510000-0x0000000005AB4000-memory.dmp

Filesize
5.6MB

Download
memory/1396-2-0x0000000004C30000-0x0000000004CCC000-memory.dmp

Filesize
624KB

Download
memory/1396-1-0x0000000000340000-0x0000000000352000-memory.dmp

Filesize
72KB

Download
memory/1772-25-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/1772-26-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download
memory/1772-28-0x0000000074760000-0x0000000074F10000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads