njrat | efbed0cba9354564282171c65ce96bc18357e356db93643a0722f4d4431ac398

General

Target

JaffaCakes118_6c80efcfc093a31fff56e2a36003a553.exe
Size

128KB
MD5

6c80efcfc093a31fff56e2a36003a553
SHA1

54de4dadaaff31a6bb38c3848eb7eece4f1fa5a1
SHA256

efbed0cba9354564282171c65ce96bc18357e356db93643a0722f4d4431ac398
SHA512

39e9a73f0add401a223c13a5919617c597200a07d25ecd08d5e9aedc7c379270bcad3294f7b83db099fb44fb223b0cd8aea903fc8125a2eb689d55b457ccbffe
SSDEEP

3072:XhT2137DYmJtiTuXWmDXOqm8mCMEKBAKL+6SRmlzCw:XhRmXWmHmdCEDSc9Cw

Score

10^/10

njrat hacked discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

softtofu.uy.to:5552

Mutex

a82bf85746d8b7324e1ca1c62b127de8

Attributes

reg_key
a82bf85746d8b7324e1ca1c62b127de8
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
1480	netsh.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	JaffaCakes118_6c80efcfc093a31fff56e2a36003a553.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	1.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a82bf85746d8b7324e1ca1c62b127de8.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a82bf85746d8b7324e1ca1c62b127de8.exe	server.exe

Executes dropped EXE 2 IoCs

pid	Process
3124	1.exe
4336	server.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\Microsoft\Windows\CurrentVersion\Run\a82bf85746d8b7324e1ca1c62b127de8 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\a82bf85746d8b7324e1ca1c62b127de8 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	1.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	1.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly	1.exe
File created	C:\Windows\assembly\Desktop.ini	1.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	1.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\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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_6c80efcfc093a31fff56e2a36003a553.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	4336	server.exe
Token: 33	4336	server.exe
Token: SeIncBasePriorityPrivilege	4336	server.exe
Token: 33	4336	server.exe
Token: SeIncBasePriorityPrivilege	4336	server.exe
Token: 33	4336	server.exe
Token: SeIncBasePriorityPrivilege	4336	server.exe
Token: 33	4336	server.exe
Token: SeIncBasePriorityPrivilege	4336	server.exe
Token: 33	4336	server.exe
Token: SeIncBasePriorityPrivilege	4336	server.exe
Token: 33	4336	server.exe
Token: SeIncBasePriorityPrivilege	4336	server.exe
Token: 33	4336	server.exe
Token: SeIncBasePriorityPrivilege	4336	server.exe
Token: 33	4336	server.exe
Token: SeIncBasePriorityPrivilege	4336	server.exe
Token: 33	4336	server.exe
Token: SeIncBasePriorityPrivilege	4336	server.exe
Token: 33	4336	server.exe
Token: SeIncBasePriorityPrivilege	4336	server.exe
Token: 33	4336	server.exe
Token: SeIncBasePriorityPrivilege	4336	server.exe
Token: 33	4336	server.exe
Token: SeIncBasePriorityPrivilege	4336	server.exe
Token: 33	4336	server.exe
Token: SeIncBasePriorityPrivilege	4336	server.exe
Token: 33	4336	server.exe
Token: SeIncBasePriorityPrivilege	4336	server.exe
Token: 33	4336	server.exe
Token: SeIncBasePriorityPrivilege	4336	server.exe
Token: 33	4336	server.exe
Token: SeIncBasePriorityPrivilege	4336	server.exe
Token: 33	4336	server.exe
Token: SeIncBasePriorityPrivilege	4336	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4864 wrote to memory of 3124	4864	JaffaCakes118_6c80efcfc093a31fff56e2a36003a553.exe	83
PID 4864 wrote to memory of 3124	4864	JaffaCakes118_6c80efcfc093a31fff56e2a36003a553.exe	83
PID 3124 wrote to memory of 4336	3124	1.exe	84
PID 3124 wrote to memory of 4336	3124	1.exe	84
PID 4336 wrote to memory of 1480	4336	server.exe	91
PID 4336 wrote to memory of 1480	4336	server.exe	91

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6c80efcfc093a31fff56e2a36003a553.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6c80efcfc093a31fff56e2a36003a553.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4864
- C:\1.exe
  "C:\1.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Drops desktop.ini file(s)
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:3124
- - C:\Users\Admin\AppData\Local\Temp\server.exe
    "C:\Users\Admin\AppData\Local\Temp\server.exe"
    3⤵
    - Drops startup file
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4336
  - - C:\Windows\SYSTEM32\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
      4⤵
      Modifies Windows Firewall
      Event Triggered Execution: Netsh Helper DLL
      PID:1480

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:\1.exe

Filesize
96KB

MD5
ff62ca9df15d709ec3d6bef6891ffded

SHA1
69780bdedd67074ac78b7ddf589d7037a4bba13a

SHA256
62b6b3d4d39c8300497009ef9dd090ba07f5d6136bd4fe1004a331ead42d23ab

SHA512
8f03507c95d3e47ded866edd6dc8fe115626619f02b05137e9e0b7170cf23789509bef9d996b9b6e17bdada157c415b958a7e4fc1ef8708505adf6a722a97161

Download Submit
memory/3124-12-0x00007FF9CFF25000-0x00007FF9CFF26000-memory.dmp

Filesize
4KB

Download
memory/3124-13-0x00007FF9CFC70000-0x00007FF9D0611000-memory.dmp

Filesize
9.6MB

Download
memory/3124-14-0x00007FF9CFC70000-0x00007FF9D0611000-memory.dmp

Filesize
9.6MB

Download
memory/3124-15-0x000000001B780000-0x000000001BC4E000-memory.dmp

Filesize
4.8MB

Download
memory/3124-16-0x0000000000CF0000-0x0000000000D04000-memory.dmp

Filesize
80KB

Download
memory/3124-19-0x0000000000A10000-0x0000000000A1C000-memory.dmp

Filesize
48KB

Download
memory/3124-20-0x000000001BD60000-0x000000001BE06000-memory.dmp

Filesize
664KB

Download
memory/3124-34-0x00007FF9CFC70000-0x00007FF9D0611000-memory.dmp

Filesize
9.6MB

Download
memory/3124-33-0x00007FF9CFC70000-0x00007FF9D0611000-memory.dmp

Filesize
9.6MB

Download
memory/4336-36-0x0000000000BD0000-0x0000000000BE4000-memory.dmp

Filesize
80KB

Download
memory/4336-37-0x00007FF9CFC70000-0x00007FF9D0611000-memory.dmp

Filesize
9.6MB

Download
memory/4336-35-0x00007FF9CFC70000-0x00007FF9D0611000-memory.dmp

Filesize
9.6MB

Download
memory/4336-38-0x00007FF9CFC70000-0x00007FF9D0611000-memory.dmp

Filesize
9.6MB

Download
memory/4336-40-0x000000001BDC0000-0x000000001BE5C000-memory.dmp

Filesize
624KB

Download
memory/4336-41-0x0000000000960000-0x0000000000968000-memory.dmp

Filesize
32KB

Download
memory/4336-42-0x00007FF9CFC70000-0x00007FF9D0611000-memory.dmp

Filesize
9.6MB

Download
memory/4336-43-0x00007FF9CFC70000-0x00007FF9D0611000-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