njrat | f4102eabfbc0a233683bd6d410ab74bc62105880d3d39b3e817d14cb80c17d7c

General

Target

JaffaCakes118_0f8f1d669887d45a09c73486780bd9a4.exe
Size

130KB
MD5

0f8f1d669887d45a09c73486780bd9a4
SHA1

402496a5e0be4b62988b5dc45bcb8874d8a237bc
SHA256

f4102eabfbc0a233683bd6d410ab74bc62105880d3d39b3e817d14cb80c17d7c
SHA512

e918c8df47ac1cf16b0d4d5815f073540955f2345581733de8bc4d2386a84af8ad86910690da2f658c16363510e8d42d320b98532f7373d396a273e4e2aad91e
SSDEEP

3072:pCwer7j33ZdbSNO4wmR34hP8naoAk3/zGMi0GD:oF

Score

10^/10

njrat kings discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

kinGs

C2

autosytes.sytes.net:8812

Mutex

c4ce1a3cf5434f82369ee03a55fe27ec

Attributes

reg_key
c4ce1a3cf5434f82369ee03a55fe27ec
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
2748	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\c4ce1a3cf5434f82369ee03a55fe27ec.exe	update.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\c4ce1a3cf5434f82369ee03a55fe27ec.exe	update.exe

Executes dropped EXE 1 IoCs

pid	Process
2836	update.exe

Loads dropped DLL 1 IoCs

pid	Process
2772	JaffaCakes118_0f8f1d669887d45a09c73486780bd9a4.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\c4ce1a3cf5434f82369ee03a55fe27ec = "\"C:\\Users\\Admin\\AppData\\Roaming\\update.exe\" .."	update.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\c4ce1a3cf5434f82369ee03a55fe27ec = "\"C:\\Users\\Admin\\AppData\\Roaming\\update.exe\" .."	update.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	JaffaCakes118_0f8f1d669887d45a09c73486780bd9a4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	update.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	2836	update.exe
Token: 33	2836	update.exe
Token: SeIncBasePriorityPrivilege	2836	update.exe
Token: 33	2836	update.exe
Token: SeIncBasePriorityPrivilege	2836	update.exe
Token: 33	2836	update.exe
Token: SeIncBasePriorityPrivilege	2836	update.exe
Token: 33	2836	update.exe
Token: SeIncBasePriorityPrivilege	2836	update.exe
Token: 33	2836	update.exe
Token: SeIncBasePriorityPrivilege	2836	update.exe
Token: 33	2836	update.exe
Token: SeIncBasePriorityPrivilege	2836	update.exe
Token: 33	2836	update.exe
Token: SeIncBasePriorityPrivilege	2836	update.exe
Token: 33	2836	update.exe
Token: SeIncBasePriorityPrivilege	2836	update.exe
Token: 33	2836	update.exe
Token: SeIncBasePriorityPrivilege	2836	update.exe
Token: 33	2836	update.exe
Token: SeIncBasePriorityPrivilege	2836	update.exe
Token: 33	2836	update.exe
Token: SeIncBasePriorityPrivilege	2836	update.exe
Token: 33	2836	update.exe
Token: SeIncBasePriorityPrivilege	2836	update.exe
Token: 33	2836	update.exe
Token: SeIncBasePriorityPrivilege	2836	update.exe
Token: 33	2836	update.exe
Token: SeIncBasePriorityPrivilege	2836	update.exe
Token: 33	2836	update.exe
Token: SeIncBasePriorityPrivilege	2836	update.exe
Token: 33	2836	update.exe
Token: SeIncBasePriorityPrivilege	2836	update.exe
Token: 33	2836	update.exe
Token: SeIncBasePriorityPrivilege	2836	update.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2772 wrote to memory of 2836	2772	JaffaCakes118_0f8f1d669887d45a09c73486780bd9a4.exe	30
PID 2772 wrote to memory of 2836	2772	JaffaCakes118_0f8f1d669887d45a09c73486780bd9a4.exe	30
PID 2772 wrote to memory of 2836	2772	JaffaCakes118_0f8f1d669887d45a09c73486780bd9a4.exe	30
PID 2772 wrote to memory of 2836	2772	JaffaCakes118_0f8f1d669887d45a09c73486780bd9a4.exe	30
PID 2772 wrote to memory of 2836	2772	JaffaCakes118_0f8f1d669887d45a09c73486780bd9a4.exe	30
PID 2772 wrote to memory of 2836	2772	JaffaCakes118_0f8f1d669887d45a09c73486780bd9a4.exe	30
PID 2772 wrote to memory of 2836	2772	JaffaCakes118_0f8f1d669887d45a09c73486780bd9a4.exe	30
PID 2836 wrote to memory of 2748	2836	update.exe	31
PID 2836 wrote to memory of 2748	2836	update.exe	31
PID 2836 wrote to memory of 2748	2836	update.exe	31
PID 2836 wrote to memory of 2748	2836	update.exe	31

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0f8f1d669887d45a09c73486780bd9a4.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0f8f1d669887d45a09c73486780bd9a4.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2772
- C:\Users\Admin\AppData\Roaming\update.exe
  "C:\Users\Admin\AppData\Roaming\update.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:2836
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\update.exe" "update.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2748

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\Roaming\update.exe

Filesize
130KB

MD5
0f8f1d669887d45a09c73486780bd9a4

SHA1
402496a5e0be4b62988b5dc45bcb8874d8a237bc

SHA256
f4102eabfbc0a233683bd6d410ab74bc62105880d3d39b3e817d14cb80c17d7c

SHA512
e918c8df47ac1cf16b0d4d5815f073540955f2345581733de8bc4d2386a84af8ad86910690da2f658c16363510e8d42d320b98532f7373d396a273e4e2aad91e

Download Submit
memory/2772-0-0x0000000073EDE000-0x0000000073EDF000-memory.dmp

Filesize
4KB

Download
memory/2772-1-0x0000000000250000-0x0000000000278000-memory.dmp

Filesize
160KB

Download
memory/2772-2-0x0000000000290000-0x000000000029C000-memory.dmp

Filesize
48KB

Download
memory/2836-10-0x00000000012C0000-0x00000000012E8000-memory.dmp

Filesize
160KB

Download
memory/2836-11-0x0000000073ED0000-0x00000000745BE000-memory.dmp

Filesize
6.9MB

Download
memory/2836-13-0x0000000073ED0000-0x00000000745BE000-memory.dmp

Filesize
6.9MB

Download
memory/2836-14-0x0000000073ED0000-0x00000000745BE000-memory.dmp

Filesize
6.9MB

Download
memory/2836-15-0x0000000073ED0000-0x00000000745BE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads