njrat | 40c7945ff7ba7aad8001b48f637996eb473dab74d825e87f7c4494a162af2254

General

Target

d0e8c16e6646f3eaaf78d273139f2df0N.exe
Size

116KB
MD5

d0e8c16e6646f3eaaf78d273139f2df0
SHA1

6e6758b239b8cab23e04d208c0d3702cfb7c8b9b
SHA256

40c7945ff7ba7aad8001b48f637996eb473dab74d825e87f7c4494a162af2254
SHA512

a620c5c3df8351dba88308d3334ea43808566dcdfc45327655ef68cbccb61de5198727db56a41badd97d06b5c6b38c82b3ff85f4e88f301634f81009b84709b0
SSDEEP

1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDIR:P5eznsjsguGDFqGZ2rDIR

Score

10^/10

njrat neuf discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

neuf

C2

doddyfire.linkpc.net:10000

Mutex

e1a87040f2026369a233f9ae76301b7b

Attributes

reg_key
e1a87040f2026369a233f9ae76301b7b
splitter
|'|'|

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
4704	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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	d0e8c16e6646f3eaaf78d273139f2df0N.exe

Executes dropped EXE 3 IoCs

pid	Process
716	chargeable.exe
2304	chargeable.exe
436	chargeable.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-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe"	d0e8c16e6646f3eaaf78d273139f2df0N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\d0e8c16e6646f3eaaf78d273139f2df0N.exe"	d0e8c16e6646f3eaaf78d273139f2df0N.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 716 set thread context of 2304	716	chargeable.exe	95
PID 716 set thread context of 436	716	chargeable.exe	94

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 2 IoCs

pid	pid_target	Process	procid_target
3496	436	WerFault.exe	94
2020	436	WerFault.exe	94

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	d0e8c16e6646f3eaaf78d273139f2df0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chargeable.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chargeable.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeDebugPrivilege	2304	chargeable.exe
Token: 33	2304	chargeable.exe
Token: SeIncBasePriorityPrivilege	2304	chargeable.exe
Token: 33	2304	chargeable.exe
Token: SeIncBasePriorityPrivilege	2304	chargeable.exe
Token: 33	2304	chargeable.exe
Token: SeIncBasePriorityPrivilege	2304	chargeable.exe
Token: 33	2304	chargeable.exe
Token: SeIncBasePriorityPrivilege	2304	chargeable.exe
Token: 33	2304	chargeable.exe
Token: SeIncBasePriorityPrivilege	2304	chargeable.exe
Token: 33	2304	chargeable.exe
Token: SeIncBasePriorityPrivilege	2304	chargeable.exe
Token: 33	2304	chargeable.exe
Token: SeIncBasePriorityPrivilege	2304	chargeable.exe
Token: 33	2304	chargeable.exe
Token: SeIncBasePriorityPrivilege	2304	chargeable.exe
Token: 33	2304	chargeable.exe
Token: SeIncBasePriorityPrivilege	2304	chargeable.exe
Token: 33	2304	chargeable.exe
Token: SeIncBasePriorityPrivilege	2304	chargeable.exe
Token: 33	2304	chargeable.exe
Token: SeIncBasePriorityPrivilege	2304	chargeable.exe
Token: 33	2304	chargeable.exe
Token: SeIncBasePriorityPrivilege	2304	chargeable.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 4860 wrote to memory of 716	4860	d0e8c16e6646f3eaaf78d273139f2df0N.exe	91
PID 4860 wrote to memory of 716	4860	d0e8c16e6646f3eaaf78d273139f2df0N.exe	91
PID 4860 wrote to memory of 716	4860	d0e8c16e6646f3eaaf78d273139f2df0N.exe	91
PID 716 wrote to memory of 436	716	chargeable.exe	94
PID 716 wrote to memory of 436	716	chargeable.exe	94
PID 716 wrote to memory of 436	716	chargeable.exe	94
PID 716 wrote to memory of 2304	716	chargeable.exe	95
PID 716 wrote to memory of 2304	716	chargeable.exe	95
PID 716 wrote to memory of 2304	716	chargeable.exe	95
PID 716 wrote to memory of 2304	716	chargeable.exe	95
PID 716 wrote to memory of 2304	716	chargeable.exe	95
PID 716 wrote to memory of 2304	716	chargeable.exe	95
PID 716 wrote to memory of 2304	716	chargeable.exe	95
PID 716 wrote to memory of 2304	716	chargeable.exe	95
PID 716 wrote to memory of 436	716	chargeable.exe	94
PID 716 wrote to memory of 436	716	chargeable.exe	94
PID 716 wrote to memory of 436	716	chargeable.exe	94
PID 716 wrote to memory of 436	716	chargeable.exe	94
PID 716 wrote to memory of 436	716	chargeable.exe	94
PID 2304 wrote to memory of 4704	2304	chargeable.exe	101
PID 2304 wrote to memory of 4704	2304	chargeable.exe	101
PID 2304 wrote to memory of 4704	2304	chargeable.exe	101

C:\Users\Admin\AppData\Local\Temp\d0e8c16e6646f3eaaf78d273139f2df0N.exe
"C:\Users\Admin\AppData\Local\Temp\d0e8c16e6646f3eaaf78d273139f2df0N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4860
- C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
  "C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:716
- - C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    3⤵
    - Executes dropped EXE
    PID:436
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 436 -s 12
      4⤵
      Program crash
      PID:3496
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 436 -s 20
      4⤵
      Program crash
      PID:2020
- - C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2304
  - - C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe" "chargeable.exe" ENABLE
      4⤵
      Modifies Windows Firewall
      Event Triggered Execution: Netsh Helper DLL
      System Location Discovery: System Language Discovery
      PID:4704

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 436 -ip 436
1⤵
PID:4032

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 436 -ip 436
1⤵
PID:3624

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:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\chargeable.exe.log

Filesize
400B

MD5
0a9b4592cd49c3c21f6767c2dabda92f

SHA1
f534297527ae5ccc0ecb2221ddeb8e58daeb8b74

SHA256
c7effe9cb81a70d738dee863991afefab040290d4c4b78b4202383bcb9f88fcd

SHA512
6b878df474e5bbfb8e9e265f15a76560c2ef151dcebc6388c82d7f6f86ffaf83f5ade5a09f1842e493cb6c8fd63b0b88d088c728fd725f7139f965a5ee332307

Download Submit
C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe

Filesize
116KB

MD5
34d01d37db113263942800fa740b8392

SHA1
6ce7a2934780e9d41a02f62bd0083bcd09f52fa0

SHA256
1811a989362102549a002519e986fe2dc554646eff4cd521135fc623258f77cf

SHA512
21443db761fc5422c6384d24eeb8100f3caab9e2846317b8cbd2449a005c2f6eaf6fe31905e5097486a1c339aadfe2aaa819c9e117c20d0e61ee8b80cc81e4b9

Download Submit
memory/436-23-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/716-20-0x0000000075430000-0x00000000759E1000-memory.dmp

Filesize
5.7MB

Download
memory/716-30-0x0000000075430000-0x00000000759E1000-memory.dmp

Filesize
5.7MB

Download
memory/716-21-0x0000000075430000-0x00000000759E1000-memory.dmp

Filesize
5.7MB

Download
memory/2304-28-0x0000000075430000-0x00000000759E1000-memory.dmp

Filesize
5.7MB

Download
memory/2304-22-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2304-29-0x0000000075430000-0x00000000759E1000-memory.dmp

Filesize
5.7MB

Download
memory/2304-31-0x0000000075430000-0x00000000759E1000-memory.dmp

Filesize
5.7MB

Download
memory/4860-19-0x0000000075430000-0x00000000759E1000-memory.dmp

Filesize
5.7MB

Download
memory/4860-7-0x0000000075430000-0x00000000759E1000-memory.dmp

Filesize
5.7MB

Download
memory/4860-6-0x0000000075432000-0x0000000075433000-memory.dmp

Filesize
4KB

Download
memory/4860-2-0x0000000075430000-0x00000000759E1000-memory.dmp

Filesize
5.7MB

Download
memory/4860-0-0x0000000075432000-0x0000000075433000-memory.dmp

Filesize
4KB

Download
memory/4860-1-0x0000000075430000-0x00000000759E1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads