njrat | 5584c2b407e908d5d0b04969a5fce7c5fd1ec257899ac000694736220f686637

General

Target

5584c2b407e908d5d0b04969a5fce7c5fd1ec257899ac000694736220f686637N.exe
Size

570KB
MD5

1766236894d13c49a9c18b803f079fd0
SHA1

97e2c466b5cb3cb5eea1d0da26578e45d420a5d6
SHA256

5584c2b407e908d5d0b04969a5fce7c5fd1ec257899ac000694736220f686637
SHA512

2f7e454cd2dc18323f39993d81ce20ed2ee448039be3f33c364a7d2c80f14deee0702d6e4b32fd407c7333de5efad0f06672e91c7e196567c4be8792a12cddc2
SSDEEP

12288:LF6kN+Db1Sk42sC5kQRP31W/su/HFQXmB9T9dnZ:LF6kcnUkdrWHFQWB9T9NZ

Score

10^/10

njrat discovery evasion persistence privilege_escalation trojan

Malware Config

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
2276	netsh.exe

Checks computer location settings 2 TTPs 3 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	Tempserver.exe
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	5584c2b407e908d5d0b04969a5fce7c5fd1ec257899ac000694736220f686637N.exe
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	sex.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5cd8f17f4086744065eb0992a09e05a2.exe	Trojan.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5cd8f17f4086744065eb0992a09e05a2.exe	Trojan.exe

Executes dropped EXE 3 IoCs

pid	Process
944	sex.exe
228	Tempserver.exe
4812	Trojan.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\5cd8f17f4086744065eb0992a09e05a2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Trojan.exe\" .."	Trojan.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\5cd8f17f4086744065eb0992a09e05a2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Trojan.exe\" .."	Trojan.exe

Drops file in Program Files directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\c	5584c2b407e908d5d0b04969a5fce7c5fd1ec257899ac000694736220f686637N.exe
File created	C:\Program Files (x86)\c\__tmp_rar_sfx_access_check_240623921	5584c2b407e908d5d0b04969a5fce7c5fd1ec257899ac000694736220f686637N.exe
File created	C:\Program Files (x86)\c\sex.jpg	5584c2b407e908d5d0b04969a5fce7c5fd1ec257899ac000694736220f686637N.exe
File opened for modification	C:\Program Files (x86)\c\sex.jpg	5584c2b407e908d5d0b04969a5fce7c5fd1ec257899ac000694736220f686637N.exe
File created	C:\Program Files (x86)\c\sex.exe	5584c2b407e908d5d0b04969a5fce7c5fd1ec257899ac000694736220f686637N.exe
File opened for modification	C:\Program Files (x86)\c\sex.exe	5584c2b407e908d5d0b04969a5fce7c5fd1ec257899ac000694736220f686637N.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

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	5584c2b407e908d5d0b04969a5fce7c5fd1ec257899ac000694736220f686637N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sex.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Tempserver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Trojan.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious behavior: EnumeratesProcesses 36 IoCs

pid	Process
4812	Trojan.exe
4812	Trojan.exe
4812	Trojan.exe
4812	Trojan.exe
4812	Trojan.exe
4812	Trojan.exe
4812	Trojan.exe
4812	Trojan.exe
4812	Trojan.exe
4812	Trojan.exe
4812	Trojan.exe
4812	Trojan.exe
4812	Trojan.exe
4812	Trojan.exe
4812	Trojan.exe
4812	Trojan.exe
4812	Trojan.exe
4812	Trojan.exe
4812	Trojan.exe
4812	Trojan.exe
4812	Trojan.exe
4812	Trojan.exe
4812	Trojan.exe
4812	Trojan.exe
4812	Trojan.exe
4812	Trojan.exe
4812	Trojan.exe
4812	Trojan.exe
4812	Trojan.exe
4812	Trojan.exe
4812	Trojan.exe
4812	Trojan.exe
4812	Trojan.exe
4812	Trojan.exe
4812	Trojan.exe
4812	Trojan.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4812	Trojan.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4560 wrote to memory of 944	4560	5584c2b407e908d5d0b04969a5fce7c5fd1ec257899ac000694736220f686637N.exe	85
PID 4560 wrote to memory of 944	4560	5584c2b407e908d5d0b04969a5fce7c5fd1ec257899ac000694736220f686637N.exe	85
PID 4560 wrote to memory of 944	4560	5584c2b407e908d5d0b04969a5fce7c5fd1ec257899ac000694736220f686637N.exe	85
PID 944 wrote to memory of 228	944	sex.exe	88
PID 944 wrote to memory of 228	944	sex.exe	88
PID 944 wrote to memory of 228	944	sex.exe	88
PID 228 wrote to memory of 4812	228	Tempserver.exe	89
PID 228 wrote to memory of 4812	228	Tempserver.exe	89
PID 228 wrote to memory of 4812	228	Tempserver.exe	89
PID 4812 wrote to memory of 2276	4812	Trojan.exe	90
PID 4812 wrote to memory of 2276	4812	Trojan.exe	90
PID 4812 wrote to memory of 2276	4812	Trojan.exe	90

C:\Users\Admin\AppData\Local\Temp\5584c2b407e908d5d0b04969a5fce7c5fd1ec257899ac000694736220f686637N.exe
"C:\Users\Admin\AppData\Local\Temp\5584c2b407e908d5d0b04969a5fce7c5fd1ec257899ac000694736220f686637N.exe"
1⤵
- Checks computer location settings
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4560
- C:\Program Files (x86)\c\sex.exe
  "C:\Program Files (x86)\c\sex.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:944
- - C:\Users\Admin\AppData\Local\Tempserver.exe
    "C:\Users\Admin\AppData\Local\Tempserver.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:228
  - - C:\Users\Admin\AppData\Local\Temp\Trojan.exe
      "C:\Users\Admin\AppData\Local\Temp\Trojan.exe"
      4⤵
      Drops startup file
      Executes dropped EXE
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:4812
    - - C:\Windows\SysWOW64\netsh.exe
        
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Trojan.exe" "Trojan.exe" ENABLE
        5⤵
        Modifies Windows Firewall
        Event Triggered Execution: Netsh Helper DLL
        System Location Discovery: System Language Discovery
        
        PID:2276

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:\Program Files (x86)\c\sex.exe

Filesize
151KB

MD5
4dba1b52da1ddaf7dc2dc444e4377868

SHA1
7a73d8d8e732bce2c70c7b0cc7f206b78b624244

SHA256
e85789ca9efef66e7ec1917f16ce0d384e2e41fa07a82ebc6b74aa91499952f5

SHA512
5aabf5bbeba7cee8dc923d4ed19540eb4230420e39e3ea9814e784945bfb5fa3cb804025cc50343ea5b0ad919c27d265677999b75ccc1436db17490ce107f656

Download Submit
C:\Users\Admin\AppData\Local\Tempserver.exe

Filesize
29KB

MD5
fa3edf01c318ab76fa9d0dbe6ca968c0

SHA1
613907f6f1583d228354b9d5df0d01408b2593be

SHA256
982cb927dd20624d9244acc10e4fa6ece928924691a6e347ab2e38949edf22e1

SHA512
0c9c3d38f5cc6550721cfa87d5f7e25aeb1232b4b4b36e2e2de215fac2884888a877c059d0e1c5133d5efb88c2cbdd810f3584540f470693fc4e10a909d11fc8

Download Submit
memory/944-14-0x0000000072F7E000-0x0000000072F7F000-memory.dmp

Filesize
4KB

Download
memory/944-15-0x0000000000E70000-0x0000000000E9C000-memory.dmp

Filesize
176KB

Download
memory/944-16-0x0000000005F90000-0x0000000006534000-memory.dmp

Filesize
5.6MB

Download
memory/944-17-0x0000000005890000-0x0000000005922000-memory.dmp

Filesize
584KB

Download
memory/944-18-0x00000000059E0000-0x0000000005A7C000-memory.dmp

Filesize
624KB

Download
memory/944-19-0x0000000072F70000-0x0000000073720000-memory.dmp

Filesize
7.7MB

Download
memory/944-20-0x0000000005880000-0x000000000588A000-memory.dmp

Filesize
40KB

Download
memory/944-21-0x0000000005A80000-0x0000000005AD6000-memory.dmp

Filesize
344KB

Download
memory/944-22-0x0000000005B50000-0x0000000005B60000-memory.dmp

Filesize
64KB

Download
memory/944-32-0x0000000072F70000-0x0000000073720000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads