njrat | a43c49401a1a406b4a903402dda4bc69a804f5d105642a8417b9171aa3ec3010

General

Target

fe4b9dfa13c9eace77f66a4a72b78120N.exe
Size

117KB
MD5

fe4b9dfa13c9eace77f66a4a72b78120
SHA1

007d70531181570848479a935df2d576bff0ec52
SHA256

a43c49401a1a406b4a903402dda4bc69a804f5d105642a8417b9171aa3ec3010
SHA512

31a6d1c76139f6b60bd2959d43bce6e9d33d3a2ee1b66acc5fad53fd0e979f8106d1fe8202b1a87f447e20eeb511b7c6feeadfc5399f21ea8df68f8bccb93edd
SSDEEP

1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMIYAO:P5eznsjsguGDFqGZ2rIYL

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
4416	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-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	fe4b9dfa13c9eace77f66a4a72b78120N.exe

Executes dropped EXE 2 IoCs

pid	Process
4900	chargeable.exe
3924	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-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe"	fe4b9dfa13c9eace77f66a4a72b78120N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\fe4b9dfa13c9eace77f66a4a72b78120N.exe"	fe4b9dfa13c9eace77f66a4a72b78120N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4900 set thread context of 3924	4900	chargeable.exe	93

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 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	fe4b9dfa13c9eace77f66a4a72b78120N.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	3924	chargeable.exe
Token: 33	3924	chargeable.exe
Token: SeIncBasePriorityPrivilege	3924	chargeable.exe
Token: 33	3924	chargeable.exe
Token: SeIncBasePriorityPrivilege	3924	chargeable.exe
Token: 33	3924	chargeable.exe
Token: SeIncBasePriorityPrivilege	3924	chargeable.exe
Token: 33	3924	chargeable.exe
Token: SeIncBasePriorityPrivilege	3924	chargeable.exe
Token: 33	3924	chargeable.exe
Token: SeIncBasePriorityPrivilege	3924	chargeable.exe
Token: 33	3924	chargeable.exe
Token: SeIncBasePriorityPrivilege	3924	chargeable.exe
Token: 33	3924	chargeable.exe
Token: SeIncBasePriorityPrivilege	3924	chargeable.exe
Token: 33	3924	chargeable.exe
Token: SeIncBasePriorityPrivilege	3924	chargeable.exe
Token: 33	3924	chargeable.exe
Token: SeIncBasePriorityPrivilege	3924	chargeable.exe
Token: 33	3924	chargeable.exe
Token: SeIncBasePriorityPrivilege	3924	chargeable.exe
Token: 33	3924	chargeable.exe
Token: SeIncBasePriorityPrivilege	3924	chargeable.exe
Token: 33	3924	chargeable.exe
Token: SeIncBasePriorityPrivilege	3924	chargeable.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2996 wrote to memory of 4900	2996	fe4b9dfa13c9eace77f66a4a72b78120N.exe	91
PID 2996 wrote to memory of 4900	2996	fe4b9dfa13c9eace77f66a4a72b78120N.exe	91
PID 2996 wrote to memory of 4900	2996	fe4b9dfa13c9eace77f66a4a72b78120N.exe	91
PID 4900 wrote to memory of 3924	4900	chargeable.exe	93
PID 4900 wrote to memory of 3924	4900	chargeable.exe	93
PID 4900 wrote to memory of 3924	4900	chargeable.exe	93
PID 4900 wrote to memory of 3924	4900	chargeable.exe	93
PID 4900 wrote to memory of 3924	4900	chargeable.exe	93
PID 4900 wrote to memory of 3924	4900	chargeable.exe	93
PID 4900 wrote to memory of 3924	4900	chargeable.exe	93
PID 4900 wrote to memory of 3924	4900	chargeable.exe	93
PID 3924 wrote to memory of 4416	3924	chargeable.exe	96
PID 3924 wrote to memory of 4416	3924	chargeable.exe	96
PID 3924 wrote to memory of 4416	3924	chargeable.exe	96

C:\Users\Admin\AppData\Local\Temp\fe4b9dfa13c9eace77f66a4a72b78120N.exe
"C:\Users\Admin\AppData\Local\Temp\fe4b9dfa13c9eace77f66a4a72b78120N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2996
- 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:4900
- - 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:3924
  - - 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:4416

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
117KB

MD5
9ce61b4ade975aa52926f339183aa984

SHA1
69cb130d51be349e8bd428b83c6be72893508933

SHA256
5a5ddf608196a06bf929d219952bcf17c0db7ceb0b358df66ad84bc895aff8bd

SHA512
db5f75532eb210a350a8f82d69360491bf743423508d8a694b3aa0154f2bb748acd89ab256408357d95679866147ccb7f8ccf62876e7a1559ba2568218d83cb9

Download Submit
memory/2996-1-0x0000000074FF0000-0x00000000755A1000-memory.dmp

Filesize
5.7MB

Download
memory/2996-2-0x0000000074FF0000-0x00000000755A1000-memory.dmp

Filesize
5.7MB

Download
memory/2996-6-0x0000000074FF2000-0x0000000074FF3000-memory.dmp

Filesize
4KB

Download
memory/2996-7-0x0000000074FF0000-0x00000000755A1000-memory.dmp

Filesize
5.7MB

Download
memory/2996-20-0x0000000074FF0000-0x00000000755A1000-memory.dmp

Filesize
5.7MB

Download
memory/2996-19-0x0000000074FF0000-0x00000000755A1000-memory.dmp

Filesize
5.7MB

Download
memory/2996-0-0x0000000074FF2000-0x0000000074FF3000-memory.dmp

Filesize
4KB

Download
memory/3924-27-0x0000000074FF0000-0x00000000755A1000-memory.dmp

Filesize
5.7MB

Download
memory/3924-23-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/3924-29-0x0000000074FF0000-0x00000000755A1000-memory.dmp

Filesize
5.7MB

Download
memory/3924-30-0x0000000074FF0000-0x00000000755A1000-memory.dmp

Filesize
5.7MB

Download
memory/3924-31-0x0000000074FF0000-0x00000000755A1000-memory.dmp

Filesize
5.7MB

Download
memory/4900-21-0x0000000074FF0000-0x00000000755A1000-memory.dmp

Filesize
5.7MB

Download
memory/4900-22-0x0000000074FF0000-0x00000000755A1000-memory.dmp

Filesize
5.7MB

Download
memory/4900-28-0x0000000074FF0000-0x00000000755A1000-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