njrat | df565eec185189cd6281e541953975959b81524626f38272a85b6eef71c4ec16

General

Target
43BA5A3F20774F2AC402D8B310825F84.exe
Size 27KB
Sample261104-e7vdyae19s
SHA256 df565eec185189cd6281e541953975959b81524626f38272a85b6eef71c4ec16
MD5 43ba5a3f20774f2ac402d8b310825f84
SHA1 cec6ef6fdc36297935d1a352ce0f7a70cbbf27f2
SHA512 91f83e9ac9f3ea9d607b10fa55ddd672094bb7b1c62b960d08df0dd059349d8a66d0222c16253099264404f730b315ea308c05088130a5183223b2ff05fe2cb1
SSDEEP 384:2c6ze6e1PAhJVzC3tC1im/BsTx46PgZ0rap9HBmRvR6JZlbw8hqIusZzZH1PkR:ue9EJLN/yRpcnuu
TLSH
T139C2194A3FA8C856C5AC1770C5A6C6B00370A9470412EE2B9CC578DBBF73BD52D48AF9
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

adobe defense_evasion discovery njrat persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

Adobe

C2

adobeupdate.ddns.net:30001

Mutex

7c13077a7b65412d0b6e15373f2ba725

Attributes

reg_key
7c13077a7b65412d0b6e15373f2ba725
splitter
|'|'|

Signatures

Family: njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
4868	netsh.exe

Executes dropped EXE 2 IoCs

pid	Process
4148	server.exe
1284	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\USER\S-1-5-21-4280978039-528710165-233981602-1000\Software\Microsoft\Windows\CurrentVersion\Run\7c13077a7b65412d0b6e15373f2ba725 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\7c13077a7b65412d0b6e15373f2ba725 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe

Enumerates video capture drivers 2 TTPs 1 IoCs

Queries the legacy Video for Windows capture drivers. This is commonly abused by RATs to check for available webcams on the system before reporting to their C2.

discovery defense_evasion

Peripheral Device Discovery

T1120

Video Capture

T1125

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Drivers32\msvideo9	server.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

Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	server.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	server.exe

System Location Discovery: System Language Discovery 1 TTPs 4 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	43BA5A3F20774F2AC402D8B310825F84.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	4148	server.exe
Token: 33	4148	server.exe
Token: SeIncBasePriorityPrivilege	4148	server.exe
Token: 33	4148	server.exe
Token: SeIncBasePriorityPrivilege	4148	server.exe
Token: 33	4148	server.exe
Token: SeIncBasePriorityPrivilege	4148	server.exe
Token: 33	4148	server.exe
Token: SeIncBasePriorityPrivilege	4148	server.exe
Token: 33	4148	server.exe
Token: SeIncBasePriorityPrivilege	4148	server.exe
Token: 33	4148	server.exe
Token: SeIncBasePriorityPrivilege	4148	server.exe
Token: 33	4148	server.exe
Token: SeIncBasePriorityPrivilege	4148	server.exe
Token: 33	4148	server.exe
Token: SeIncBasePriorityPrivilege	4148	server.exe
Token: 33	4148	server.exe
Token: SeIncBasePriorityPrivilege	4148	server.exe
Token: 33	4148	server.exe
Token: SeIncBasePriorityPrivilege	4148	server.exe
Token: 33	4148	server.exe
Token: SeIncBasePriorityPrivilege	4148	server.exe
Token: 33	4148	server.exe
Token: SeIncBasePriorityPrivilege	4148	server.exe
Token: 33	4148	server.exe
Token: SeIncBasePriorityPrivilege	4148	server.exe
Token: 33	4148	server.exe
Token: SeIncBasePriorityPrivilege	4148	server.exe
Token: 33	4148	server.exe
Token: SeIncBasePriorityPrivilege	4148	server.exe
Token: 33	4148	server.exe
Token: SeIncBasePriorityPrivilege	4148	server.exe
Token: 33	4148	server.exe
Token: SeIncBasePriorityPrivilege	4148	server.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2300 wrote to memory of 4148	2300	43BA5A3F20774F2AC402D8B310825F84.exe	89
PID 4148 wrote to memory of 4868	4148	server.exe	90

C:\Users\Admin\AppData\Local\Temp\43BA5A3F20774F2AC402D8B310825F84.exe
"C:\Users\Admin\AppData\Local\Temp\43BA5A3F20774F2AC402D8B310825F84.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2300
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Enumerates video capture drivers
  - Reads the TCP/IP host and domain name from the registry
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4148
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:4868

C:\Users\Admin\AppData\Local\Temp\server.exe
"C:\Users\Admin\AppData\Local\Temp\server.exe" ..
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1284

Network

MITRE ATT&CK Enterprise v16

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

Peripheral Device Discovery

1

T1120

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Lateral Movement

Collection

Video Capture

1

T1125

Command and Control

Exfiltration

Impact

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Downloads

server.exe

Path C:\Users\Admin\AppData\Local\Temp\server.exe
Size 27KB
SHA256 df565eec185189cd6281e541953975959b81524626f38272a85b6eef71c4ec16
MD5 43ba5a3f20774f2ac402d8b310825f84
SHA1 cec6ef6fdc36297935d1a352ce0f7a70cbbf27f2
SHA512 91f83e9ac9f3ea9d607b10fa55ddd672094bb7b1c62b960d08df0dd059349d8a66d0222c16253099264404f730b315ea308c05088130a5183223b2ff05fe2cb1
SSDEEP 384:2c6ze6e1PAhJVzC3tC1im/BsTx46PgZ0rap9HBmRvR6JZlbw8hqIusZzZH1PkR:ue9EJLN/yRpcnuu
TLSH
T139C2194A3FA8C856C5AC1770C5A6C6B00370A9470412EE2B9CC578DBBF73BD52D48AF9
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1284-13-0x0000000074AC0000-0x00000000750E1000-memory.dmp

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memory/1284-14-0x0000000074AC0000-0x00000000750E1000-memory.dmp

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memory/1284-16-0x0000000074AC0000-0x00000000750E1000-memory.dmp

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memory/2300-1-0x0000000074AC2000-0x0000000074AC4000-memory.dmp

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memory/2300-0-0x0000000001100000-0x0000000001110000-memory.dmp

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memory/4148-11-0x0000000074AC0000-0x00000000750E1000-memory.dmp

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memory/4148-15-0x0000000074AC0000-0x00000000750E1000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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