njrat | 4af3224e9388eb0635cf76ffbfb70604f6271c90d04fa66a83e788a1ebe2bc4a

General

Target

fe1fdad891d9d70a8882ca84bdceabaf_JaffaCakes118.exe
Size

277KB
MD5

fe1fdad891d9d70a8882ca84bdceabaf
SHA1

bfd898b76e34089f0cee400359270deaca422baf
SHA256

4af3224e9388eb0635cf76ffbfb70604f6271c90d04fa66a83e788a1ebe2bc4a
SHA512

1af84eb316dd5fed69ad478d19805cd9c835cffd248defe708895d70e787f461487220d710e9ee484ec041503cd2fd81768039888f931158680e8cec457a01d5
SSDEEP

6144:JnfoQD+lWXKTrd4wLyHliPMorD29Y2iO+Ai0bgJ3QIkX/l:pXjKTrdS/2WY2hV/bgVjkX/

Score

10^/10

njrat hacked discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

HacKed

C2

malekbb.no-ip.biz:1177

Mutex

62c91990ef3b28ae63840fc9e70ab61b

Attributes

reg_key
62c91990ef3b28ae63840fc9e70ab61b
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
2752	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\62c91990ef3b28ae63840fc9e70ab61b.exe	explorer6.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\62c91990ef3b28ae63840fc9e70ab61b.exe	explorer6.exe

Executes dropped EXE 2 IoCs

pid	Process
1908	explorerr.exe
2900	explorer6.exe

Loads dropped DLL 2 IoCs

pid	Process
2252	fe1fdad891d9d70a8882ca84bdceabaf_JaffaCakes118.exe
1908	explorerr.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\62c91990ef3b28ae63840fc9e70ab61b = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\explorer6.exe\" .."	explorer6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\62c91990ef3b28ae63840fc9e70ab61b = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\explorer6.exe\" .."	explorer6.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 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	fe1fdad891d9d70a8882ca84bdceabaf_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorerr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DllHost.exe

Suspicious behavior: EnumeratesProcesses 48 IoCs

pid	Process
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe
2900	explorer6.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2252	fe1fdad891d9d70a8882ca84bdceabaf_JaffaCakes118.exe
Token: SeDebugPrivilege	2900	explorer6.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2740	DllHost.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2740	DllHost.exe
2740	DllHost.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2252 wrote to memory of 1908	2252	fe1fdad891d9d70a8882ca84bdceabaf_JaffaCakes118.exe	30
PID 2252 wrote to memory of 1908	2252	fe1fdad891d9d70a8882ca84bdceabaf_JaffaCakes118.exe	30
PID 2252 wrote to memory of 1908	2252	fe1fdad891d9d70a8882ca84bdceabaf_JaffaCakes118.exe	30
PID 2252 wrote to memory of 1908	2252	fe1fdad891d9d70a8882ca84bdceabaf_JaffaCakes118.exe	30
PID 1908 wrote to memory of 2900	1908	explorerr.exe	31
PID 1908 wrote to memory of 2900	1908	explorerr.exe	31
PID 1908 wrote to memory of 2900	1908	explorerr.exe	31
PID 1908 wrote to memory of 2900	1908	explorerr.exe	31
PID 2900 wrote to memory of 2752	2900	explorer6.exe	32
PID 2900 wrote to memory of 2752	2900	explorer6.exe	32
PID 2900 wrote to memory of 2752	2900	explorer6.exe	32
PID 2900 wrote to memory of 2752	2900	explorer6.exe	32

C:\Users\Admin\AppData\Local\Temp\fe1fdad891d9d70a8882ca84bdceabaf_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fe1fdad891d9d70a8882ca84bdceabaf_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2252
- C:\Users\Admin\AppData\Local\Temp\explorerr.exe
  "C:\Users\Admin\AppData\Local\Temp\explorerr.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1908
- - C:\Users\Admin\AppData\Local\Temp\explorer6.exe
    "C:\Users\Admin\AppData\Local\Temp\explorer6.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:2900
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\explorer6.exe" "explorer6.exe" ENABLE
      4⤵
      Modifies Windows Firewall
      Event Triggered Execution: Netsh Helper DLL
      System Location Discovery: System Language Discovery
      PID:2752

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:2740

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

C:\Users\Admin\AppData\Local\Temp\samia.jpg

Filesize
124KB

MD5
b02ee56972c363ceaf61ceae7e2f1165

SHA1
289af72ed460aab2d00d54f7789c2167d73e4640

SHA256
28b64f095f0b592f7b237ecc42fe292b4d447398b45ece88d433a28d54f78561

SHA512
e3069efa0e4a38ba45c234f1d8d87135f88093625055d1253c258575123dd7644cac33e8017c7a711f59671da824ab8166b8ce32b4401c27ebb79ef4750927ff

Download Submit
\Users\Admin\AppData\Local\Temp\explorerr.exe

Filesize
29KB

MD5
927fc90520f70757ca37d0d32d14ce2a

SHA1
1b9905e08092cd5fed1293013f1e33ecc1efb418

SHA256
18a4da5e2512a23de9d7409a0972cc2fa6f6aa1c2d78063f88fab15cc1b8bdca

SHA512
6c1db7f3b3b1f4c9352987f37a7a276523dad15e80e39c254ecbef3b3a533a90d4ee4a309f04e5192aeea3588147751a5b5de142b340bbf2209db43e22b769f7

Download Submit
memory/1908-11-0x0000000074080000-0x000000007462B000-memory.dmp

Filesize
5.7MB

Download
memory/1908-13-0x0000000074080000-0x000000007462B000-memory.dmp

Filesize
5.7MB

Download
memory/1908-12-0x0000000074080000-0x000000007462B000-memory.dmp

Filesize
5.7MB

Download
memory/1908-21-0x0000000074080000-0x000000007462B000-memory.dmp

Filesize
5.7MB

Download
memory/2252-0-0x0000000074081000-0x0000000074082000-memory.dmp

Filesize
4KB

Download
memory/2252-1-0x0000000074080000-0x000000007462B000-memory.dmp

Filesize
5.7MB

Download
memory/2252-2-0x0000000074080000-0x000000007462B000-memory.dmp

Filesize
5.7MB

Download
memory/2252-23-0x0000000000C40000-0x0000000000C42000-memory.dmp

Filesize
8KB

Download
memory/2252-25-0x0000000074080000-0x000000007462B000-memory.dmp

Filesize
5.7MB

Download
memory/2740-24-0x0000000000230000-0x0000000000232000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads