njrat | 5018b51220457c3f8a1bb6b6cc928c6da15ae3a8aaeab9ff27289b1628427f6e

General

Target

JaffaCakes118_6f7e104563ae7c4f45b663c14c50dbb0.exe
Size

44KB
MD5

6f7e104563ae7c4f45b663c14c50dbb0
SHA1

94abdc26dae5d021c1af4954056cb603b7efcc24
SHA256

5018b51220457c3f8a1bb6b6cc928c6da15ae3a8aaeab9ff27289b1628427f6e
SHA512

7949a08a72d4ead00c899f43a8dcbf1ef3460472806cd60f81595ca761bfe1cae6d167078dfbe620330ab105a0010766a607862fb01269cb11cb6341d93918fd
SSDEEP

768:vSmG15H778r/ZORxYMurJvIF6gZNw6E7hKZ3mMv:0cLUfE7h4v

Score

10^/10

njrat dz jokér evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

Dz JoKéR

C2

abdou-joker.no-ip.biz:1177

Mutex

7350b4ce4c5b9059b3abecb448b12322

Attributes

reg_key
7350b4ce4c5b9059b3abecb448b12322
splitter
|'|'|

Signatures

Njrat family
njrat
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
1528	netsh.exe

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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	JaffaCakes118_6f7e104563ae7c4f45b663c14c50dbb0.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\7350b4ce4c5b9059b3abecb448b12322.exe	systeme.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\7350b4ce4c5b9059b3abecb448b12322.exe	systeme.exe

Executes dropped EXE 1 IoCs

pid	Process
4756	systeme.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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\7350b4ce4c5b9059b3abecb448b12322 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\systeme.exe\" .."	systeme.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\7350b4ce4c5b9059b3abecb448b12322 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\systeme.exe\" .."	systeme.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\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe

Suspicious behavior: EnumeratesProcesses 48 IoCs

pid	Process
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe
4756	systeme.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4756	systeme.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4328 wrote to memory of 4756	4328	JaffaCakes118_6f7e104563ae7c4f45b663c14c50dbb0.exe	82
PID 4328 wrote to memory of 4756	4328	JaffaCakes118_6f7e104563ae7c4f45b663c14c50dbb0.exe	82
PID 4756 wrote to memory of 1528	4756	systeme.exe	83
PID 4756 wrote to memory of 1528	4756	systeme.exe	83

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6f7e104563ae7c4f45b663c14c50dbb0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6f7e104563ae7c4f45b663c14c50dbb0.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4328
- C:\Users\Admin\AppData\Local\Temp\systeme.exe
  "C:\Users\Admin\AppData\Local\Temp\systeme.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4756
- - C:\Windows\SYSTEM32\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\systeme.exe" "systeme.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    PID:1528

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
44KB

MD5
6f7e104563ae7c4f45b663c14c50dbb0

SHA1
94abdc26dae5d021c1af4954056cb603b7efcc24

SHA256
5018b51220457c3f8a1bb6b6cc928c6da15ae3a8aaeab9ff27289b1628427f6e

SHA512
7949a08a72d4ead00c899f43a8dcbf1ef3460472806cd60f81595ca761bfe1cae6d167078dfbe620330ab105a0010766a607862fb01269cb11cb6341d93918fd

Download Submit
memory/4328-3-0x000000001BF40000-0x000000001C40E000-memory.dmp

Filesize
4.8MB

Download
memory/4328-2-0x000000001BA60000-0x000000001BA6E000-memory.dmp

Filesize
56KB

Download
memory/4328-0-0x00007FF87ABC5000-0x00007FF87ABC6000-memory.dmp

Filesize
4KB

Download
memory/4328-4-0x000000001C4C0000-0x000000001C566000-memory.dmp

Filesize
664KB

Download
memory/4328-6-0x00007FF87A910000-0x00007FF87B2B1000-memory.dmp

Filesize
9.6MB

Download
memory/4328-1-0x00007FF87A910000-0x00007FF87B2B1000-memory.dmp

Filesize
9.6MB

Download
memory/4328-18-0x00007FF87A910000-0x00007FF87B2B1000-memory.dmp

Filesize
9.6MB

Download
memory/4756-19-0x00007FF87A910000-0x00007FF87B2B1000-memory.dmp

Filesize
9.6MB

Download
memory/4756-21-0x00007FF87A910000-0x00007FF87B2B1000-memory.dmp

Filesize
9.6MB

Download
memory/4756-22-0x00007FF87A910000-0x00007FF87B2B1000-memory.dmp

Filesize
9.6MB

Download
memory/4756-23-0x000000001C750000-0x000000001C7EC000-memory.dmp

Filesize
624KB

Download
memory/4756-24-0x0000000001510000-0x0000000001518000-memory.dmp

Filesize
32KB

Download
memory/4756-25-0x00007FF87A910000-0x00007FF87B2B1000-memory.dmp

Filesize
9.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads