njrat | 9a3d7a18eb3b69d572ff6c3d9b1421b311f2b87adebb98556aa8d24ffb7432fb

General

Target

JaffaCakes118_1b3a00bccae34f2a27efa64874bc833a.exe
Size

304KB
MD5

1b3a00bccae34f2a27efa64874bc833a
SHA1

1054afc9e13efffb17fa1a899752ef38aa6c63a9
SHA256

9a3d7a18eb3b69d572ff6c3d9b1421b311f2b87adebb98556aa8d24ffb7432fb
SHA512

1a137a86036a49a09e030fa09a6e2f57ae99ee1f26a653d8025c3401245b38d54d54077a842c494470ab1bafae3c888f7b67a1161894ac91de2ecc9e3279a642
SSDEEP

3072:Spjg0qgNOGQxT8V2jV5+nPL/s9sTb7BKwlggggggc:o1qJ2V23yPqo

Score

10^/10

njrat hacked evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

checkout.capeturk.com:4444

Mutex

Client Server Runtime Process

Attributes

reg_key
Client Server Runtime Process
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
4524	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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	JaffaCakes118_1b3a00bccae34f2a27efa64874bc833a.exe

Executes dropped EXE 1 IoCs

pid	Process
1488	csrss.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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Client Server Runtime Process = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\csrss.exe\" .."	csrss.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Client Server Runtime Process = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\csrss.exe\" .."	csrss.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly\Desktop.ini	JaffaCakes118_1b3a00bccae34f2a27efa64874bc833a.exe
File created	C:\Windows\assembly\Desktop.ini	JaffaCakes118_1b3a00bccae34f2a27efa64874bc833a.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly\Desktop.ini	JaffaCakes118_1b3a00bccae34f2a27efa64874bc833a.exe
File opened for modification	C:\Windows\assembly	JaffaCakes118_1b3a00bccae34f2a27efa64874bc833a.exe
File created	C:\Windows\assembly\Desktop.ini	JaffaCakes118_1b3a00bccae34f2a27efa64874bc833a.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 queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	1488	csrss.exe
Token: 33	1488	csrss.exe
Token: SeIncBasePriorityPrivilege	1488	csrss.exe
Token: 33	1488	csrss.exe
Token: SeIncBasePriorityPrivilege	1488	csrss.exe
Token: 33	1488	csrss.exe
Token: SeIncBasePriorityPrivilege	1488	csrss.exe
Token: 33	1488	csrss.exe
Token: SeIncBasePriorityPrivilege	1488	csrss.exe
Token: 33	1488	csrss.exe
Token: SeIncBasePriorityPrivilege	1488	csrss.exe
Token: 33	1488	csrss.exe
Token: SeIncBasePriorityPrivilege	1488	csrss.exe
Token: 33	1488	csrss.exe
Token: SeIncBasePriorityPrivilege	1488	csrss.exe
Token: 33	1488	csrss.exe
Token: SeIncBasePriorityPrivilege	1488	csrss.exe
Token: 33	1488	csrss.exe
Token: SeIncBasePriorityPrivilege	1488	csrss.exe
Token: 33	1488	csrss.exe
Token: SeIncBasePriorityPrivilege	1488	csrss.exe
Token: 33	1488	csrss.exe
Token: SeIncBasePriorityPrivilege	1488	csrss.exe
Token: 33	1488	csrss.exe
Token: SeIncBasePriorityPrivilege	1488	csrss.exe
Token: 33	1488	csrss.exe
Token: SeIncBasePriorityPrivilege	1488	csrss.exe
Token: 33	1488	csrss.exe
Token: SeIncBasePriorityPrivilege	1488	csrss.exe
Token: 33	1488	csrss.exe
Token: SeIncBasePriorityPrivilege	1488	csrss.exe
Token: 33	1488	csrss.exe
Token: SeIncBasePriorityPrivilege	1488	csrss.exe
Token: 33	1488	csrss.exe
Token: SeIncBasePriorityPrivilege	1488	csrss.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3676 wrote to memory of 1488	3676	JaffaCakes118_1b3a00bccae34f2a27efa64874bc833a.exe	84
PID 3676 wrote to memory of 1488	3676	JaffaCakes118_1b3a00bccae34f2a27efa64874bc833a.exe	84
PID 1488 wrote to memory of 4524	1488	csrss.exe	85
PID 1488 wrote to memory of 4524	1488	csrss.exe	85

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1b3a00bccae34f2a27efa64874bc833a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1b3a00bccae34f2a27efa64874bc833a.exe"
1⤵
- Checks computer location settings
- Drops desktop.ini file(s)
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:3676
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\csrss.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\csrss.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1488
- - C:\Windows\SYSTEM32\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\csrss.exe" "csrss.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    PID:4524

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\csrss.exe

Filesize
304KB

MD5
1b3a00bccae34f2a27efa64874bc833a

SHA1
1054afc9e13efffb17fa1a899752ef38aa6c63a9

SHA256
9a3d7a18eb3b69d572ff6c3d9b1421b311f2b87adebb98556aa8d24ffb7432fb

SHA512
1a137a86036a49a09e030fa09a6e2f57ae99ee1f26a653d8025c3401245b38d54d54077a842c494470ab1bafae3c888f7b67a1161894ac91de2ecc9e3279a642

Download Submit
memory/1488-29-0x00007FFC80290000-0x00007FFC80C31000-memory.dmp

Filesize
9.6MB

Download
memory/1488-28-0x00000000011F0000-0x00000000011F8000-memory.dmp

Filesize
32KB

Download
memory/1488-27-0x000000001D0A0000-0x000000001D13C000-memory.dmp

Filesize
624KB

Download
memory/1488-25-0x0000000001190000-0x00000000011A4000-memory.dmp

Filesize
80KB

Download
memory/1488-26-0x00007FFC80290000-0x00007FFC80C31000-memory.dmp

Filesize
9.6MB

Download
memory/1488-24-0x00007FFC80290000-0x00007FFC80C31000-memory.dmp

Filesize
9.6MB

Download
memory/3676-5-0x000000001B7C0000-0x000000001B866000-memory.dmp

Filesize
664KB

Download
memory/3676-23-0x00007FFC80290000-0x00007FFC80C31000-memory.dmp

Filesize
9.6MB

Download
memory/3676-8-0x000000001C450000-0x000000001C91E000-memory.dmp

Filesize
4.8MB

Download
memory/3676-7-0x0000000000E10000-0x0000000000E1C000-memory.dmp

Filesize
48KB

Download
memory/3676-6-0x00007FFC80290000-0x00007FFC80C31000-memory.dmp

Filesize
9.6MB

Download
memory/3676-0-0x00007FFC80545000-0x00007FFC80546000-memory.dmp

Filesize
4KB

Download
memory/3676-2-0x0000000000E20000-0x0000000000E34000-memory.dmp

Filesize
80KB

Download
memory/3676-1-0x00007FFC80290000-0x00007FFC80C31000-memory.dmp

Filesize
9.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads