njrat | d9009371df732bd8b3ccab8b38e9968069503292b112b2b27cb1c3c54814b3ab

General

Target

39c7890454199e5b02bb27a88a5de133_JaffaCakes118.exe
Size

23KB
MD5

39c7890454199e5b02bb27a88a5de133
SHA1

5a74f54d3b229ac8d0232ebbbd06d1225e506130
SHA256

d9009371df732bd8b3ccab8b38e9968069503292b112b2b27cb1c3c54814b3ab
SHA512

05ac5c0249a16041117b628ca88fc3ea1c39296fc451064d60ce2e782685cc27055e4721aefa0d7c219f7b5e04765741b690edcaa0e546f64fa448c2db1cb404
SSDEEP

384:hc6CqbFYh3odrVCGiHssDB4b6i6fgpEupNXRmRvR6JZlbw8hqIusZzZJWv:iIU0tw3RpcnuYI

Score

10^/10

njrat discovery evasion persistence privilege_escalation trojan

Malware Config

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
3300	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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	39c7890454199e5b02bb27a88a5de133_JaffaCakes118.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\136b1168824f71e066b31d730796138d.exe	script.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\136b1168824f71e066b31d730796138d.exe	script.exe

Executes dropped EXE 1 IoCs

pid	Process
3952	script.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-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\136b1168824f71e066b31d730796138d = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\script.exe\" .."	script.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\136b1168824f71e066b31d730796138d = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\script.exe\" .."	script.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 4 IoCs

Web Service

T1102

flow	ioc
17	4.tcp.ngrok.io
37	4.tcp.ngrok.io
49	4.tcp.ngrok.io
65	4.tcp.ngrok.io

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	39c7890454199e5b02bb27a88a5de133_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	script.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	3952	script.exe
Token: 33	3952	script.exe
Token: SeIncBasePriorityPrivilege	3952	script.exe
Token: 33	3952	script.exe
Token: SeIncBasePriorityPrivilege	3952	script.exe
Token: 33	3952	script.exe
Token: SeIncBasePriorityPrivilege	3952	script.exe
Token: 33	3952	script.exe
Token: SeIncBasePriorityPrivilege	3952	script.exe
Token: 33	3952	script.exe
Token: SeIncBasePriorityPrivilege	3952	script.exe
Token: 33	3952	script.exe
Token: SeIncBasePriorityPrivilege	3952	script.exe
Token: 33	3952	script.exe
Token: SeIncBasePriorityPrivilege	3952	script.exe
Token: 33	3952	script.exe
Token: SeIncBasePriorityPrivilege	3952	script.exe
Token: 33	3952	script.exe
Token: SeIncBasePriorityPrivilege	3952	script.exe
Token: 33	3952	script.exe
Token: SeIncBasePriorityPrivilege	3952	script.exe
Token: 33	3952	script.exe
Token: SeIncBasePriorityPrivilege	3952	script.exe
Token: 33	3952	script.exe
Token: SeIncBasePriorityPrivilege	3952	script.exe
Token: 33	3952	script.exe
Token: SeIncBasePriorityPrivilege	3952	script.exe
Token: 33	3952	script.exe
Token: SeIncBasePriorityPrivilege	3952	script.exe
Token: 33	3952	script.exe
Token: SeIncBasePriorityPrivilege	3952	script.exe
Token: 33	3952	script.exe
Token: SeIncBasePriorityPrivilege	3952	script.exe
Token: 33	3952	script.exe
Token: SeIncBasePriorityPrivilege	3952	script.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2764 wrote to memory of 3952	2764	39c7890454199e5b02bb27a88a5de133_JaffaCakes118.exe	86
PID 2764 wrote to memory of 3952	2764	39c7890454199e5b02bb27a88a5de133_JaffaCakes118.exe	86
PID 2764 wrote to memory of 3952	2764	39c7890454199e5b02bb27a88a5de133_JaffaCakes118.exe	86
PID 3952 wrote to memory of 3300	3952	script.exe	87
PID 3952 wrote to memory of 3300	3952	script.exe	87
PID 3952 wrote to memory of 3300	3952	script.exe	87

C:\Users\Admin\AppData\Local\Temp\39c7890454199e5b02bb27a88a5de133_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\39c7890454199e5b02bb27a88a5de133_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2764
- C:\Users\Admin\AppData\Local\Temp\script.exe
  "C:\Users\Admin\AppData\Local\Temp\script.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:3952
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\script.exe" "script.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:3300

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

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\script.exe

Filesize
23KB

MD5
39c7890454199e5b02bb27a88a5de133

SHA1
5a74f54d3b229ac8d0232ebbbd06d1225e506130

SHA256
d9009371df732bd8b3ccab8b38e9968069503292b112b2b27cb1c3c54814b3ab

SHA512
05ac5c0249a16041117b628ca88fc3ea1c39296fc451064d60ce2e782685cc27055e4721aefa0d7c219f7b5e04765741b690edcaa0e546f64fa448c2db1cb404

Download Submit
memory/2764-0-0x00000000754F2000-0x00000000754F3000-memory.dmp

Filesize
4KB

Download
memory/2764-1-0x00000000754F0000-0x0000000075AA1000-memory.dmp

Filesize
5.7MB

Download
memory/2764-2-0x00000000754F0000-0x0000000075AA1000-memory.dmp

Filesize
5.7MB

Download
memory/2764-13-0x00000000754F0000-0x0000000075AA1000-memory.dmp

Filesize
5.7MB

Download
memory/3952-14-0x00000000754F0000-0x0000000075AA1000-memory.dmp

Filesize
5.7MB

Download
memory/3952-12-0x00000000754F0000-0x0000000075AA1000-memory.dmp

Filesize
5.7MB

Download
memory/3952-16-0x00000000754F0000-0x0000000075AA1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads