njrat | 5de4df60f82b84a844af59b95c8082437decde0e9a1bd8d518ca9f9af81d9ebf

General

Target

JaffaCakes118_64911ce042821456b64f89a6d194ec70.exe
Size

249KB
MD5

64911ce042821456b64f89a6d194ec70
SHA1

5c96c64f0b76a21f29ede3bcd8d1361fecccbef4
SHA256

5de4df60f82b84a844af59b95c8082437decde0e9a1bd8d518ca9f9af81d9ebf
SHA512

6d6bf18af291a1b8bf1b678410c7b1e85083b11b19800e8e9ec8f956f17a918e59b216c69e67933e6e2fd3b6d1ebcc203ff367dbfbab4d708c2fe8528db1af61
SSDEEP

6144:1YqXg6jG1UnRHF561jqduXR5BH691YxThgej8tiu:VXTi10lCjqYX091YxThgTtiu

Score

10^/10

njrat hacked discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

yesso.ddns.net:1177

Mutex

1136aae10b58a0069ddd4349aceebe52

Attributes

reg_key
1136aae10b58a0069ddd4349aceebe52
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
3800	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_64911ce042821456b64f89a6d194ec70.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\1136aae10b58a0069ddd4349aceebe52.exe	svchost.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\1136aae10b58a0069ddd4349aceebe52.exe	svchost.exe

Executes dropped EXE 2 IoCs

pid	Process
4408	svchost.exe
5036	svchost.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\systèm d'exploitation microsoft windows = "C:\\Users\\Admin\\AppData\\Local\\Temp\\svchost.exe"	JaffaCakes118_64911ce042821456b64f89a6d194ec70.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\1136aae10b58a0069ddd4349aceebe52 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\svchost.exe\" .."	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\1136aae10b58a0069ddd4349aceebe52 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\svchost.exe\" .."	svchost.exe

Drops autorun.inf file 1 TTPs 4 IoCs

Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media

T1091

description	ioc	Process
File created	C:\autorun.inf	JaffaCakes118_64911ce042821456b64f89a6d194ec70.exe
File opened for modification	C:\autorun.inf	JaffaCakes118_64911ce042821456b64f89a6d194ec70.exe
File created	F:\autorun.inf	JaffaCakes118_64911ce042821456b64f89a6d194ec70.exe
File opened for modification	F:\autorun.inf	JaffaCakes118_64911ce042821456b64f89a6d194ec70.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3548 set thread context of 3640	3548	JaffaCakes118_64911ce042821456b64f89a6d194ec70.exe	82
PID 4408 set thread context of 5036	4408	svchost.exe	91

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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
980	4408	WerFault.exe	87

System Location Discovery: System Language Discovery 1 TTPs 5 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_64911ce042821456b64f89a6d194ec70.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_64911ce042821456b64f89a6d194ec70.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3548	JaffaCakes118_64911ce042821456b64f89a6d194ec70.exe
3548	JaffaCakes118_64911ce042821456b64f89a6d194ec70.exe
3548	JaffaCakes118_64911ce042821456b64f89a6d194ec70.exe

Suspicious use of AdjustPrivilegeToken 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	3548	JaffaCakes118_64911ce042821456b64f89a6d194ec70.exe
Token: SeDebugPrivilege	4408	svchost.exe
Token: SeDebugPrivilege	5036	svchost.exe
Token: 33	5036	svchost.exe
Token: SeIncBasePriorityPrivilege	5036	svchost.exe
Token: 33	5036	svchost.exe
Token: SeIncBasePriorityPrivilege	5036	svchost.exe
Token: 33	5036	svchost.exe
Token: SeIncBasePriorityPrivilege	5036	svchost.exe
Token: 33	5036	svchost.exe
Token: SeIncBasePriorityPrivilege	5036	svchost.exe
Token: 33	5036	svchost.exe
Token: SeIncBasePriorityPrivilege	5036	svchost.exe
Token: 33	5036	svchost.exe
Token: SeIncBasePriorityPrivilege	5036	svchost.exe
Token: 33	5036	svchost.exe
Token: SeIncBasePriorityPrivilege	5036	svchost.exe
Token: 33	5036	svchost.exe
Token: SeIncBasePriorityPrivilege	5036	svchost.exe
Token: 33	5036	svchost.exe
Token: SeIncBasePriorityPrivilege	5036	svchost.exe
Token: 33	5036	svchost.exe
Token: SeIncBasePriorityPrivilege	5036	svchost.exe
Token: 33	5036	svchost.exe
Token: SeIncBasePriorityPrivilege	5036	svchost.exe
Token: 33	5036	svchost.exe
Token: SeIncBasePriorityPrivilege	5036	svchost.exe
Token: 33	5036	svchost.exe
Token: SeIncBasePriorityPrivilege	5036	svchost.exe
Token: 33	5036	svchost.exe
Token: SeIncBasePriorityPrivilege	5036	svchost.exe
Token: 33	5036	svchost.exe
Token: SeIncBasePriorityPrivilege	5036	svchost.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 3548 wrote to memory of 3640	3548	JaffaCakes118_64911ce042821456b64f89a6d194ec70.exe	82
PID 3548 wrote to memory of 3640	3548	JaffaCakes118_64911ce042821456b64f89a6d194ec70.exe	82
PID 3548 wrote to memory of 3640	3548	JaffaCakes118_64911ce042821456b64f89a6d194ec70.exe	82
PID 3548 wrote to memory of 3640	3548	JaffaCakes118_64911ce042821456b64f89a6d194ec70.exe	82
PID 3548 wrote to memory of 3640	3548	JaffaCakes118_64911ce042821456b64f89a6d194ec70.exe	82
PID 3548 wrote to memory of 3640	3548	JaffaCakes118_64911ce042821456b64f89a6d194ec70.exe	82
PID 3548 wrote to memory of 3640	3548	JaffaCakes118_64911ce042821456b64f89a6d194ec70.exe	82
PID 3548 wrote to memory of 3640	3548	JaffaCakes118_64911ce042821456b64f89a6d194ec70.exe	82
PID 3640 wrote to memory of 4408	3640	JaffaCakes118_64911ce042821456b64f89a6d194ec70.exe	87
PID 3640 wrote to memory of 4408	3640	JaffaCakes118_64911ce042821456b64f89a6d194ec70.exe	87
PID 3640 wrote to memory of 4408	3640	JaffaCakes118_64911ce042821456b64f89a6d194ec70.exe	87
PID 4408 wrote to memory of 5036	4408	svchost.exe	91
PID 4408 wrote to memory of 5036	4408	svchost.exe	91
PID 4408 wrote to memory of 5036	4408	svchost.exe	91
PID 4408 wrote to memory of 5036	4408	svchost.exe	91
PID 4408 wrote to memory of 5036	4408	svchost.exe	91
PID 4408 wrote to memory of 5036	4408	svchost.exe	91
PID 4408 wrote to memory of 5036	4408	svchost.exe	91
PID 4408 wrote to memory of 5036	4408	svchost.exe	91
PID 5036 wrote to memory of 3800	5036	svchost.exe	95
PID 5036 wrote to memory of 3800	5036	svchost.exe	95
PID 5036 wrote to memory of 3800	5036	svchost.exe	95

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_64911ce042821456b64f89a6d194ec70.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_64911ce042821456b64f89a6d194ec70.exe"
1⤵
- Adds Run key to start application
- Drops autorun.inf file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3548
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_64911ce042821456b64f89a6d194ec70.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_64911ce042821456b64f89a6d194ec70.exe
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3640
- - C:\Users\Admin\AppData\Local\Temp\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4408
  - - C:\Users\Admin\AppData\Local\Temp\svchost.exe
      C:\Users\Admin\AppData\Local\Temp\svchost.exe
      4⤵
      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:5036
    - - C:\Windows\SysWOW64\netsh.exe
        
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\svchost.exe" "svchost.exe" ENABLE
        5⤵
        Modifies Windows Firewall
        Event Triggered Execution: Netsh Helper DLL
        System Location Discovery: System Language Discovery
        
        PID:3800
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4408 -s 1160
      4⤵
      Program crash
      PID:980

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4408 -ip 4408
1⤵
PID:5096

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Replication Through Removable Media

1

T1091

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

Replication Through Removable Media

1

T1091

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\JaffaCakes118_64911ce042821456b64f89a6d194ec70.exe.log

Filesize
1KB

MD5
de52595a6f9ede9663416e246e7cdaca

SHA1
8b14da579a6aa0e0f111415807bbd8c1e81dbb2d

SHA256
445ff9b847c4564d1c58857d7ff036a7347869ac3172a2aedef0da15122d5b25

SHA512
1402b4641f6b5bdda7b0e7081c23d5e36f70a6b88b59eea6a8605b8426899e8b1367fe3ae864a9d2c1c819b8eedeb6db765d6334da778629f9e77593e5ce0b50

Download Submit
F:\aI_A_i_I_D_b_N_T_X_z_.exe

Filesize
249KB

MD5
64911ce042821456b64f89a6d194ec70

SHA1
5c96c64f0b76a21f29ede3bcd8d1361fecccbef4

SHA256
5de4df60f82b84a844af59b95c8082437decde0e9a1bd8d518ca9f9af81d9ebf

SHA512
6d6bf18af291a1b8bf1b678410c7b1e85083b11b19800e8e9ec8f956f17a918e59b216c69e67933e6e2fd3b6d1ebcc203ff367dbfbab4d708c2fe8528db1af61

Download Submit
memory/3548-8-0x0000000007A90000-0x0000000007A9A000-memory.dmp

Filesize
40KB

Download
memory/3548-2-0x0000000002D00000-0x0000000002D0E000-memory.dmp

Filesize
56KB

Download
memory/3548-4-0x0000000005250000-0x000000000526C000-memory.dmp

Filesize
112KB

Download
memory/3548-5-0x0000000008000000-0x00000000085A4000-memory.dmp

Filesize
5.6MB

Download
memory/3548-6-0x0000000007AF0000-0x0000000007B82000-memory.dmp

Filesize
584KB

Download
memory/3548-7-0x0000000007B90000-0x0000000007C2C000-memory.dmp

Filesize
624KB

Download
memory/3548-0-0x0000000074EBE000-0x0000000074EBF000-memory.dmp

Filesize
4KB

Download
memory/3548-1-0x00000000008F0000-0x0000000000934000-memory.dmp

Filesize
272KB

Download
memory/3548-23-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/3548-3-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/3548-20-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/3548-21-0x0000000007D60000-0x0000000007D78000-memory.dmp

Filesize
96KB

Download
memory/3640-12-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/3640-38-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/3640-9-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/4408-37-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/4408-41-0x0000000074EB0000-0x0000000075660000-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