njrat | 2fda3eebcc3e73d2fcd4b5a3c5092b3b0b1cf56fb6e9915de9f69bdbc1dd40cb

General

Target

fdf1fa9d34f84fdc822fbfde0cc45c62_JaffaCakes118.exe
Size

23KB
MD5

fdf1fa9d34f84fdc822fbfde0cc45c62
SHA1

2440ac917fc11364d8c2c845e8c349a82681527d
SHA256

2fda3eebcc3e73d2fcd4b5a3c5092b3b0b1cf56fb6e9915de9f69bdbc1dd40cb
SHA512

4e256b5074910788ca837135bd4701711aa4709ff9ef90dbe9b36f20c86ad0013d0dc3d3c276db105c267534fe4b859ae881c781b77d39402f4d4d3d78d68ede
SSDEEP

384:ozluBPiZCMfdfSJrQbsLRGSIxYVL46pg/i8BD9BmRvR6JZlbw8hqIusZzZlF/:ocOmhtIiRpcnuA

Score

10^/10

njrat hacked discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

javaclients.hopto.org:5553

Mutex

68ff17a2ca62d590e8a5b84f0c8ebb62

Attributes

reg_key
68ff17a2ca62d590e8a5b84f0c8ebb62
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
2768	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\68ff17a2ca62d590e8a5b84f0c8ebb62.exe	MSBuild.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\68ff17a2ca62d590e8a5b84f0c8ebb62.exe	MSBuild.exe

Executes dropped EXE 1 IoCs

pid	Process
2892	MSBuild.exe

Loads dropped DLL 1 IoCs

pid	Process
2528	fdf1fa9d34f84fdc822fbfde0cc45c62_JaffaCakes118.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\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\68ff17a2ca62d590e8a5b84f0c8ebb62 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\MSBuild.exe\" .."	MSBuild.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\68ff17a2ca62d590e8a5b84f0c8ebb62 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\MSBuild.exe\" .."	MSBuild.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	fdf1fa9d34f84fdc822fbfde0cc45c62_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	2892	MSBuild.exe
Token: 33	2892	MSBuild.exe
Token: SeIncBasePriorityPrivilege	2892	MSBuild.exe
Token: 33	2892	MSBuild.exe
Token: SeIncBasePriorityPrivilege	2892	MSBuild.exe
Token: 33	2892	MSBuild.exe
Token: SeIncBasePriorityPrivilege	2892	MSBuild.exe
Token: 33	2892	MSBuild.exe
Token: SeIncBasePriorityPrivilege	2892	MSBuild.exe
Token: 33	2892	MSBuild.exe
Token: SeIncBasePriorityPrivilege	2892	MSBuild.exe
Token: 33	2892	MSBuild.exe
Token: SeIncBasePriorityPrivilege	2892	MSBuild.exe
Token: 33	2892	MSBuild.exe
Token: SeIncBasePriorityPrivilege	2892	MSBuild.exe
Token: 33	2892	MSBuild.exe
Token: SeIncBasePriorityPrivilege	2892	MSBuild.exe
Token: 33	2892	MSBuild.exe
Token: SeIncBasePriorityPrivilege	2892	MSBuild.exe
Token: 33	2892	MSBuild.exe
Token: SeIncBasePriorityPrivilege	2892	MSBuild.exe
Token: 33	2892	MSBuild.exe
Token: SeIncBasePriorityPrivilege	2892	MSBuild.exe
Token: 33	2892	MSBuild.exe
Token: SeIncBasePriorityPrivilege	2892	MSBuild.exe
Token: 33	2892	MSBuild.exe
Token: SeIncBasePriorityPrivilege	2892	MSBuild.exe
Token: 33	2892	MSBuild.exe
Token: SeIncBasePriorityPrivilege	2892	MSBuild.exe
Token: 33	2892	MSBuild.exe
Token: SeIncBasePriorityPrivilege	2892	MSBuild.exe
Token: 33	2892	MSBuild.exe
Token: SeIncBasePriorityPrivilege	2892	MSBuild.exe
Token: 33	2892	MSBuild.exe
Token: SeIncBasePriorityPrivilege	2892	MSBuild.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2528 wrote to memory of 2892	2528	fdf1fa9d34f84fdc822fbfde0cc45c62_JaffaCakes118.exe	29
PID 2528 wrote to memory of 2892	2528	fdf1fa9d34f84fdc822fbfde0cc45c62_JaffaCakes118.exe	29
PID 2528 wrote to memory of 2892	2528	fdf1fa9d34f84fdc822fbfde0cc45c62_JaffaCakes118.exe	29
PID 2528 wrote to memory of 2892	2528	fdf1fa9d34f84fdc822fbfde0cc45c62_JaffaCakes118.exe	29
PID 2892 wrote to memory of 2768	2892	MSBuild.exe	30
PID 2892 wrote to memory of 2768	2892	MSBuild.exe	30
PID 2892 wrote to memory of 2768	2892	MSBuild.exe	30
PID 2892 wrote to memory of 2768	2892	MSBuild.exe	30

C:\Users\Admin\AppData\Local\Temp\fdf1fa9d34f84fdc822fbfde0cc45c62_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fdf1fa9d34f84fdc822fbfde0cc45c62_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2528
- C:\Users\Admin\AppData\Local\Temp\MSBuild.exe
  "C:\Users\Admin\AppData\Local\Temp\MSBuild.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:2892
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\MSBuild.exe" "MSBuild.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2768

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\MSBuild.exe

Filesize
23KB

MD5
fdf1fa9d34f84fdc822fbfde0cc45c62

SHA1
2440ac917fc11364d8c2c845e8c349a82681527d

SHA256
2fda3eebcc3e73d2fcd4b5a3c5092b3b0b1cf56fb6e9915de9f69bdbc1dd40cb

SHA512
4e256b5074910788ca837135bd4701711aa4709ff9ef90dbe9b36f20c86ad0013d0dc3d3c276db105c267534fe4b859ae881c781b77d39402f4d4d3d78d68ede

Download Submit
memory/2528-0-0x0000000074D01000-0x0000000074D02000-memory.dmp

Filesize
4KB

Download
memory/2528-1-0x0000000074D00000-0x00000000752AB000-memory.dmp

Filesize
5.7MB

Download
memory/2528-2-0x0000000074D00000-0x00000000752AB000-memory.dmp

Filesize
5.7MB

Download
memory/2528-10-0x0000000074D00000-0x00000000752AB000-memory.dmp

Filesize
5.7MB

Download
memory/2892-11-0x0000000074D00000-0x00000000752AB000-memory.dmp

Filesize
5.7MB

Download
memory/2892-12-0x0000000074D00000-0x00000000752AB000-memory.dmp

Filesize
5.7MB

Download
memory/2892-14-0x0000000074D00000-0x00000000752AB000-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