njrat | 813797b7a9acf4262cf567f0cbe09ebd6be5d5c446ebe4fa5c147e7b94bf5ad4

General

Target

JaffaCakes118_81db08af2e45902dd126c2bb0b2742ec.exe
Size

32KB
MD5

81db08af2e45902dd126c2bb0b2742ec
SHA1

3b089636bdbed115573f66e37040272e818243e2
SHA256

813797b7a9acf4262cf567f0cbe09ebd6be5d5c446ebe4fa5c147e7b94bf5ad4
SHA512

97f464e63e907cb47f967cf9a99bffec34163fcb97d34530e6fcaebaac298a6d16a414960bf3aac54bd957c5490b0ec3cbcd6ab6041e53c9c6f998fc3914ee41
SSDEEP

768:lRSDnewcKNVi4wbNF51jT3rFHkKbBgqpMxgP9CKl:P+nM4ivbNFnXrxki34gP9CKl

Score

10^/10

njrat hacked discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

[email protected]:1177

Mutex

6987755f146a62fa584d2a8a43dc9fe3

Attributes

reg_key
6987755f146a62fa584d2a8a43dc9fe3
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
2592	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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	JaffaCakes118_81db08af2e45902dd126c2bb0b2742ec.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6987755f146a62fa584d2a8a43dc9fe3.exe	explorer.DLL.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6987755f146a62fa584d2a8a43dc9fe3.exe	explorer.DLL.exe

Executes dropped EXE 1 IoCs

pid	Process
3260	explorer.DLL.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\6987755f146a62fa584d2a8a43dc9fe3 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\explorer.DLL.exe\" .."	explorer.DLL.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\6987755f146a62fa584d2a8a43dc9fe3 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\explorer.DLL.exe\" .."	explorer.DLL.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	explorer.DLL.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_81db08af2e45902dd126c2bb0b2742ec.exe

Suspicious use of AdjustPrivilegeToken 29 IoCs

description	pid	Process
Token: SeDebugPrivilege	3260	explorer.DLL.exe
Token: 33	3260	explorer.DLL.exe
Token: SeIncBasePriorityPrivilege	3260	explorer.DLL.exe
Token: 33	3260	explorer.DLL.exe
Token: SeIncBasePriorityPrivilege	3260	explorer.DLL.exe
Token: 33	3260	explorer.DLL.exe
Token: SeIncBasePriorityPrivilege	3260	explorer.DLL.exe
Token: 33	3260	explorer.DLL.exe
Token: SeIncBasePriorityPrivilege	3260	explorer.DLL.exe
Token: 33	3260	explorer.DLL.exe
Token: SeIncBasePriorityPrivilege	3260	explorer.DLL.exe
Token: 33	3260	explorer.DLL.exe
Token: SeIncBasePriorityPrivilege	3260	explorer.DLL.exe
Token: 33	3260	explorer.DLL.exe
Token: SeIncBasePriorityPrivilege	3260	explorer.DLL.exe
Token: 33	3260	explorer.DLL.exe
Token: SeIncBasePriorityPrivilege	3260	explorer.DLL.exe
Token: 33	3260	explorer.DLL.exe
Token: SeIncBasePriorityPrivilege	3260	explorer.DLL.exe
Token: 33	3260	explorer.DLL.exe
Token: SeIncBasePriorityPrivilege	3260	explorer.DLL.exe
Token: 33	3260	explorer.DLL.exe
Token: SeIncBasePriorityPrivilege	3260	explorer.DLL.exe
Token: 33	3260	explorer.DLL.exe
Token: SeIncBasePriorityPrivilege	3260	explorer.DLL.exe
Token: 33	3260	explorer.DLL.exe
Token: SeIncBasePriorityPrivilege	3260	explorer.DLL.exe
Token: 33	3260	explorer.DLL.exe
Token: SeIncBasePriorityPrivilege	3260	explorer.DLL.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2588 wrote to memory of 3260	2588	JaffaCakes118_81db08af2e45902dd126c2bb0b2742ec.exe	86
PID 2588 wrote to memory of 3260	2588	JaffaCakes118_81db08af2e45902dd126c2bb0b2742ec.exe	86
PID 2588 wrote to memory of 3260	2588	JaffaCakes118_81db08af2e45902dd126c2bb0b2742ec.exe	86
PID 3260 wrote to memory of 2592	3260	explorer.DLL.exe	92
PID 3260 wrote to memory of 2592	3260	explorer.DLL.exe	92
PID 3260 wrote to memory of 2592	3260	explorer.DLL.exe	92

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_81db08af2e45902dd126c2bb0b2742ec.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_81db08af2e45902dd126c2bb0b2742ec.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2588
- C:\Users\Admin\AppData\Local\Temp\explorer.DLL.exe
  "C:\Users\Admin\AppData\Local\Temp\explorer.DLL.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:3260
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\explorer.DLL.exe" "explorer.DLL.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2592

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

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\explorer.DLL.exe

Filesize
32KB

MD5
81db08af2e45902dd126c2bb0b2742ec

SHA1
3b089636bdbed115573f66e37040272e818243e2

SHA256
813797b7a9acf4262cf567f0cbe09ebd6be5d5c446ebe4fa5c147e7b94bf5ad4

SHA512
97f464e63e907cb47f967cf9a99bffec34163fcb97d34530e6fcaebaac298a6d16a414960bf3aac54bd957c5490b0ec3cbcd6ab6041e53c9c6f998fc3914ee41

Download Submit
memory/2588-6-0x0000000005B40000-0x00000000060E4000-memory.dmp

Filesize
5.6MB

Download
memory/2588-19-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/2588-3-0x0000000002F60000-0x0000000002F6C000-memory.dmp

Filesize
48KB

Download
memory/2588-4-0x00000000054F0000-0x000000000558C000-memory.dmp

Filesize
624KB

Download
memory/2588-5-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/2588-0-0x00000000751AE000-0x00000000751AF000-memory.dmp

Filesize
4KB

Download
memory/2588-1-0x0000000000B00000-0x0000000000B0E000-memory.dmp

Filesize
56KB

Download
memory/2588-2-0x00000000751AE000-0x00000000751AF000-memory.dmp

Filesize
4KB

Download
memory/3260-20-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/3260-21-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/3260-22-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download
memory/3260-24-0x00000000059E0000-0x0000000005A72000-memory.dmp

Filesize
584KB

Download
memory/3260-25-0x00000000059A0000-0x00000000059AA000-memory.dmp

Filesize
40KB

Download
memory/3260-26-0x00000000751A0000-0x0000000075950000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads