njrat | 9fe0df51775c3935b1f385a5b924bd53218f0711378cbed62da01e96cae89fc6

Analysis

max time kernel
150s
max time network
128s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
27/09/2024, 19:51

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General

Target

9fe0df51775c3935b1f385a5b924bd53218f0711378cbed62da01e96cae89fc6.exe
Size

23KB
MD5

a5cc399e162877d4a86f9a61f9a1ce7a
SHA1

189d22434fc15561d782c365f35f35f873679ab1
SHA256

9fe0df51775c3935b1f385a5b924bd53218f0711378cbed62da01e96cae89fc6
SHA512

6b16aaaf6ff48656ade3ea177478af912aaade5e0e72957181b6d4bf6870d13489f3d1b86b53977efde8955972c8e69fd58cada0f7d97eb756e8fd7f91f4dfea
SSDEEP

384:t8aY1ia0N/IH+WUiWiLcXyUTly2Rc87po6ngB8W+tqlf5mRvR6JZlbw8hqIusZzG:c1Re/E+WUiW6ci6NR7tZRpcnun

Score

10^/10

njrat hacked discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

updatesystemtool.ddns.net:1337

Mutex

51946497299e63d72ceca3fcaf1e5119

Attributes

reg_key
51946497299e63d72ceca3fcaf1e5119
splitter
|'|'|

Signatures

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

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2696	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\51946497299e63d72ceca3fcaf1e5119.exe	steamupdate.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\51946497299e63d72ceca3fcaf1e5119.exe	steamupdate.exe

Executes dropped EXE 1 IoCs

pid	Process
2468	steamupdate.exe

Loads dropped DLL 1 IoCs

pid	Process
1856	9fe0df51775c3935b1f385a5b924bd53218f0711378cbed62da01e96cae89fc6.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-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows\CurrentVersion\Run\51946497299e63d72ceca3fcaf1e5119 = "\"C:\\Users\\Admin\\AppData\\Roaming\\steamupdate.exe\" .."	steamupdate.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\51946497299e63d72ceca3fcaf1e5119 = "\"C:\\Users\\Admin\\AppData\\Roaming\\steamupdate.exe\" .."	steamupdate.exe

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

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	9fe0df51775c3935b1f385a5b924bd53218f0711378cbed62da01e96cae89fc6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	steamupdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	2468	steamupdate.exe
Token: 33	2468	steamupdate.exe
Token: SeIncBasePriorityPrivilege	2468	steamupdate.exe
Token: 33	2468	steamupdate.exe
Token: SeIncBasePriorityPrivilege	2468	steamupdate.exe
Token: 33	2468	steamupdate.exe
Token: SeIncBasePriorityPrivilege	2468	steamupdate.exe
Token: 33	2468	steamupdate.exe
Token: SeIncBasePriorityPrivilege	2468	steamupdate.exe
Token: 33	2468	steamupdate.exe
Token: SeIncBasePriorityPrivilege	2468	steamupdate.exe
Token: 33	2468	steamupdate.exe
Token: SeIncBasePriorityPrivilege	2468	steamupdate.exe
Token: 33	2468	steamupdate.exe
Token: SeIncBasePriorityPrivilege	2468	steamupdate.exe
Token: 33	2468	steamupdate.exe
Token: SeIncBasePriorityPrivilege	2468	steamupdate.exe
Token: 33	2468	steamupdate.exe
Token: SeIncBasePriorityPrivilege	2468	steamupdate.exe
Token: 33	2468	steamupdate.exe
Token: SeIncBasePriorityPrivilege	2468	steamupdate.exe
Token: 33	2468	steamupdate.exe
Token: SeIncBasePriorityPrivilege	2468	steamupdate.exe
Token: 33	2468	steamupdate.exe
Token: SeIncBasePriorityPrivilege	2468	steamupdate.exe
Token: 33	2468	steamupdate.exe
Token: SeIncBasePriorityPrivilege	2468	steamupdate.exe
Token: 33	2468	steamupdate.exe
Token: SeIncBasePriorityPrivilege	2468	steamupdate.exe
Token: 33	2468	steamupdate.exe
Token: SeIncBasePriorityPrivilege	2468	steamupdate.exe
Token: 33	2468	steamupdate.exe
Token: SeIncBasePriorityPrivilege	2468	steamupdate.exe
Token: 33	2468	steamupdate.exe
Token: SeIncBasePriorityPrivilege	2468	steamupdate.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1856 wrote to memory of 2468	1856	9fe0df51775c3935b1f385a5b924bd53218f0711378cbed62da01e96cae89fc6.exe	31
PID 1856 wrote to memory of 2468	1856	9fe0df51775c3935b1f385a5b924bd53218f0711378cbed62da01e96cae89fc6.exe	31
PID 1856 wrote to memory of 2468	1856	9fe0df51775c3935b1f385a5b924bd53218f0711378cbed62da01e96cae89fc6.exe	31
PID 1856 wrote to memory of 2468	1856	9fe0df51775c3935b1f385a5b924bd53218f0711378cbed62da01e96cae89fc6.exe	31
PID 1856 wrote to memory of 2468	1856	9fe0df51775c3935b1f385a5b924bd53218f0711378cbed62da01e96cae89fc6.exe	31
PID 1856 wrote to memory of 2468	1856	9fe0df51775c3935b1f385a5b924bd53218f0711378cbed62da01e96cae89fc6.exe	31
PID 1856 wrote to memory of 2468	1856	9fe0df51775c3935b1f385a5b924bd53218f0711378cbed62da01e96cae89fc6.exe	31
PID 2468 wrote to memory of 2696	2468	steamupdate.exe	32
PID 2468 wrote to memory of 2696	2468	steamupdate.exe	32
PID 2468 wrote to memory of 2696	2468	steamupdate.exe	32
PID 2468 wrote to memory of 2696	2468	steamupdate.exe	32

C:\Users\Admin\AppData\Local\Temp\9fe0df51775c3935b1f385a5b924bd53218f0711378cbed62da01e96cae89fc6.exe
"C:\Users\Admin\AppData\Local\Temp\9fe0df51775c3935b1f385a5b924bd53218f0711378cbed62da01e96cae89fc6.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1856
- C:\Users\Admin\AppData\Roaming\steamupdate.exe
  "C:\Users\Admin\AppData\Roaming\steamupdate.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2468
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\steamupdate.exe" "steamupdate.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2696

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

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

\Users\Admin\AppData\Roaming\steamupdate.exe

Filesize
23KB

MD5
a5cc399e162877d4a86f9a61f9a1ce7a

SHA1
189d22434fc15561d782c365f35f35f873679ab1

SHA256
9fe0df51775c3935b1f385a5b924bd53218f0711378cbed62da01e96cae89fc6

SHA512
6b16aaaf6ff48656ade3ea177478af912aaade5e0e72957181b6d4bf6870d13489f3d1b86b53977efde8955972c8e69fd58cada0f7d97eb756e8fd7f91f4dfea

Download Submit
memory/1856-0-0x0000000074B11000-0x0000000074B12000-memory.dmp

Filesize
4KB

Download
memory/1856-1-0x0000000074B10000-0x00000000750BB000-memory.dmp

Filesize
5.7MB

Download
memory/1856-2-0x0000000074B10000-0x00000000750BB000-memory.dmp

Filesize
5.7MB

Download
memory/1856-11-0x0000000074B10000-0x00000000750BB000-memory.dmp

Filesize
5.7MB

Download
memory/2468-10-0x0000000074B10000-0x00000000750BB000-memory.dmp

Filesize
5.7MB

Download
memory/2468-12-0x0000000074B10000-0x00000000750BB000-memory.dmp

Filesize
5.7MB

Download
memory/2468-14-0x0000000074B10000-0x00000000750BB000-memory.dmp

Filesize
5.7MB

Download
memory/2468-15-0x0000000074B10000-0x00000000750BB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads