njrat | 2dc35fb8268ade4d1189d41c4908b64a2090a5429ef7f29e78322c3f177c17d7

General

Target

22585ebd82d76f47eadc4dbdd6226f17_JaffaCakes118.exe
Size

365KB
MD5

22585ebd82d76f47eadc4dbdd6226f17
SHA1

c26365a632b42586cb4eceaf3ee3a64bc966c46d
SHA256

2dc35fb8268ade4d1189d41c4908b64a2090a5429ef7f29e78322c3f177c17d7
SHA512

7f755512e458ca80375e86903d96b74b6aec41af9224a36144bebd597a3267c5ec06cc393eb19411f5ff87efcaa3f1252256609a4b00fce9309929ab692e6dfd
SSDEEP

3072:z+F4P61vRUo6hyQGGRu9e3ofUm2GZsFYP6Jr/uiXuyJDkwLwoNYOv5z6zFvZK1YK:zD61vVgjr3z51ucJDkwH3sRMg2RUYxP

Score

10^/10

njrat vitima discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

Vitima

C2

downhacking.ddns.net:1177

Mutex

0d39e4190d68272f174cf71722404520

Attributes

reg_key
0d39e4190d68272f174cf71722404520
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
2564	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\0d39e4190d68272f174cf71722404520.exe	taskhost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\0d39e4190d68272f174cf71722404520.exe	taskhost.exe

Executes dropped EXE 2 IoCs

pid	Process
2632	Encryptado.exe
2656	taskhost.exe

Loads dropped DLL 2 IoCs

pid	Process
2276	22585ebd82d76f47eadc4dbdd6226f17_JaffaCakes118.exe
2632	Encryptado.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\0d39e4190d68272f174cf71722404520 = "\"C:\\Users\\Admin\\taskhost.exe\" .."	taskhost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\0d39e4190d68272f174cf71722404520 = "\"C:\\Users\\Admin\\taskhost.exe\" .."	taskhost.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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 4 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	22585ebd82d76f47eadc4dbdd6226f17_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Encryptado.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious behavior: EnumeratesProcesses 35 IoCs

pid	Process
2656	taskhost.exe
2656	taskhost.exe
2656	taskhost.exe
2656	taskhost.exe
2656	taskhost.exe
2656	taskhost.exe
2656	taskhost.exe
2656	taskhost.exe
2656	taskhost.exe
2656	taskhost.exe
2656	taskhost.exe
2656	taskhost.exe
2656	taskhost.exe
2656	taskhost.exe
2656	taskhost.exe
2656	taskhost.exe
2656	taskhost.exe
2656	taskhost.exe
2656	taskhost.exe
2656	taskhost.exe
2656	taskhost.exe
2656	taskhost.exe
2656	taskhost.exe
2656	taskhost.exe
2656	taskhost.exe
2656	taskhost.exe
2656	taskhost.exe
2656	taskhost.exe
2656	taskhost.exe
2656	taskhost.exe
2656	taskhost.exe
2656	taskhost.exe
2656	taskhost.exe
2656	taskhost.exe
2656	taskhost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2656	taskhost.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2276 wrote to memory of 2632	2276	22585ebd82d76f47eadc4dbdd6226f17_JaffaCakes118.exe	29
PID 2276 wrote to memory of 2632	2276	22585ebd82d76f47eadc4dbdd6226f17_JaffaCakes118.exe	29
PID 2276 wrote to memory of 2632	2276	22585ebd82d76f47eadc4dbdd6226f17_JaffaCakes118.exe	29
PID 2276 wrote to memory of 2632	2276	22585ebd82d76f47eadc4dbdd6226f17_JaffaCakes118.exe	29
PID 2632 wrote to memory of 2656	2632	Encryptado.exe	30
PID 2632 wrote to memory of 2656	2632	Encryptado.exe	30
PID 2632 wrote to memory of 2656	2632	Encryptado.exe	30
PID 2632 wrote to memory of 2656	2632	Encryptado.exe	30
PID 2656 wrote to memory of 2564	2656	taskhost.exe	31
PID 2656 wrote to memory of 2564	2656	taskhost.exe	31
PID 2656 wrote to memory of 2564	2656	taskhost.exe	31
PID 2656 wrote to memory of 2564	2656	taskhost.exe	31

C:\Users\Admin\AppData\Local\Temp\22585ebd82d76f47eadc4dbdd6226f17_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\22585ebd82d76f47eadc4dbdd6226f17_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2276
- C:\Users\Admin\AppData\Local\Temp\Encryptado.exe
  "C:\Users\Admin\AppData\Local\Temp\Encryptado.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2632
- - C:\Users\Admin\taskhost.exe
    "C:\Users\Admin\taskhost.exe"
    3⤵
    - Drops startup file
    - Executes dropped EXE
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2656
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\taskhost.exe" "taskhost.exe" ENABLE
      4⤵
      Modifies Windows Firewall
      Event Triggered Execution: Netsh Helper DLL
      System Location Discovery: System Language Discovery
      PID:2564

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

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\Local\Temp\Encryptado.exe

Filesize
29KB

MD5
9b8dcd35b7d027a95fa3399160275fbe

SHA1
9a01c430af19419544bbc6103e090f24ed3d94ff

SHA256
d6cd9b8c52b4f918acbdb3432c9c5d1c56bfb342cc385d312254f9ccb8cf5a82

SHA512
88afe214b032e88071e1123fab1cbd7b385b53a0763c3136d222bf132535cac656274f52d13c989c9b607f77267491a09885aaf763d4b0641c89514db62f7558

Download Submit
memory/2276-0-0x0000000073C0E000-0x0000000073C0F000-memory.dmp

Filesize
4KB

Download
memory/2276-1-0x0000000000A90000-0x0000000000AEC000-memory.dmp

Filesize
368KB

Download
memory/2276-2-0x0000000073C00000-0x00000000742EE000-memory.dmp

Filesize
6.9MB

Download
memory/2276-3-0x0000000073C00000-0x00000000742EE000-memory.dmp

Filesize
6.9MB

Download
memory/2276-5-0x0000000073C00000-0x00000000742EE000-memory.dmp

Filesize
6.9MB

Download
memory/2276-12-0x0000000073C00000-0x00000000742EE000-memory.dmp

Filesize
6.9MB

Download
memory/2276-13-0x0000000073C00000-0x00000000742EE000-memory.dmp

Filesize
6.9MB

Download
memory/2632-14-0x000000006E081000-0x000000006E082000-memory.dmp

Filesize
4KB

Download
memory/2632-15-0x000000006E080000-0x000000006E62B000-memory.dmp

Filesize
5.7MB

Download
memory/2632-16-0x000000006E080000-0x000000006E62B000-memory.dmp

Filesize
5.7MB

Download
memory/2632-24-0x000000006E080000-0x000000006E62B000-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