njrat | b57c45a06805220749c03932b8854964964b96ed2c0c725521cdc84ab6467e64

Analysis

max time kernel
120s
max time network
110s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
22/08/2024, 10:33

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General

Target
9e9578329532e8f70dd32cd8c06944e0N.exe
Size 114KB
Sample240822-mljpbavdqk
SHA256 b57c45a06805220749c03932b8854964964b96ed2c0c725521cdc84ab6467e64
MD5 9e9578329532e8f70dd32cd8c06944e0
SHA1 e224c9efcbf3d895d13409e2c95f27cc5ec029cc
SHA512 04d4f2bc3db8982a82e8b033bd4341543ac43b0b7b05a68d906da01b8d0951d504660f97e588491cfbc33a76439190d1c74403abd74d234f26cd19a8afbcac87
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMd1R:P5eznsjsguGDFqGZ2r7R
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

njrat neuf discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

neuf

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
1148	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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	9e9578329532e8f70dd32cd8c06944e0N.exe

Executes dropped EXE 2 IoCs

pid	Process
2408	chargeable.exe
440	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-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\9e9578329532e8f70dd32cd8c06944e0N.exe"	9e9578329532e8f70dd32cd8c06944e0N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe"	9e9578329532e8f70dd32cd8c06944e0N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2408 set thread context of 440	2408	chargeable.exe	95

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	9e9578329532e8f70dd32cd8c06944e0N.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	440	chargeable.exe
Token: 33	440	chargeable.exe
Token: SeIncBasePriorityPrivilege	440	chargeable.exe
Token: 33	440	chargeable.exe
Token: SeIncBasePriorityPrivilege	440	chargeable.exe
Token: 33	440	chargeable.exe
Token: SeIncBasePriorityPrivilege	440	chargeable.exe
Token: 33	440	chargeable.exe
Token: SeIncBasePriorityPrivilege	440	chargeable.exe
Token: 33	440	chargeable.exe
Token: SeIncBasePriorityPrivilege	440	chargeable.exe
Token: 33	440	chargeable.exe
Token: SeIncBasePriorityPrivilege	440	chargeable.exe
Token: 33	440	chargeable.exe
Token: SeIncBasePriorityPrivilege	440	chargeable.exe
Token: 33	440	chargeable.exe
Token: SeIncBasePriorityPrivilege	440	chargeable.exe
Token: 33	440	chargeable.exe
Token: SeIncBasePriorityPrivilege	440	chargeable.exe
Token: 33	440	chargeable.exe
Token: SeIncBasePriorityPrivilege	440	chargeable.exe
Token: 33	440	chargeable.exe
Token: SeIncBasePriorityPrivilege	440	chargeable.exe
Token: 33	440	chargeable.exe
Token: SeIncBasePriorityPrivilege	440	chargeable.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2920 wrote to memory of 2408	2920	9e9578329532e8f70dd32cd8c06944e0N.exe	92
PID 2920 wrote to memory of 2408	2920	9e9578329532e8f70dd32cd8c06944e0N.exe	92
PID 2920 wrote to memory of 2408	2920	9e9578329532e8f70dd32cd8c06944e0N.exe	92
PID 2408 wrote to memory of 440	2408	chargeable.exe	95
PID 2408 wrote to memory of 440	2408	chargeable.exe	95
PID 2408 wrote to memory of 440	2408	chargeable.exe	95
PID 2408 wrote to memory of 440	2408	chargeable.exe	95
PID 2408 wrote to memory of 440	2408	chargeable.exe	95
PID 2408 wrote to memory of 440	2408	chargeable.exe	95
PID 2408 wrote to memory of 440	2408	chargeable.exe	95
PID 2408 wrote to memory of 440	2408	chargeable.exe	95
PID 440 wrote to memory of 1148	440	chargeable.exe	96
PID 440 wrote to memory of 1148	440	chargeable.exe	96
PID 440 wrote to memory of 1148	440	chargeable.exe	96

C:\Users\Admin\AppData\Local\Temp\9e9578329532e8f70dd32cd8c06944e0N.exe
"C:\Users\Admin\AppData\Local\Temp\9e9578329532e8f70dd32cd8c06944e0N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2920
- 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:2408
- - 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:440
  - - 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:1148

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

chargeable.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\chargeable.exe.log
Size 400B
SHA256 c7effe9cb81a70d738dee863991afefab040290d4c4b78b4202383bcb9f88fcd
MD5 0a9b4592cd49c3c21f6767c2dabda92f
SHA1 f534297527ae5ccc0ecb2221ddeb8e58daeb8b74
SHA512 6b878df474e5bbfb8e9e265f15a76560c2ef151dcebc6388c82d7f6f86ffaf83f5ade5a09f1842e493cb6c8fd63b0b88d088c728fd725f7139f965a5ee332307
MD5 SHA1 SHA512

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chargeable.exe

Path C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
Size 114KB
SHA256 076c6dc6145dfa87ceb4860f96f6a16e07bd337fad2c1662411e7e198db68847
MD5 11c4f327040fbb5cd043a51bbffcb71c
SHA1 e8a55abfc72622edf48686b33b430c28e488c2d4
SHA512 3385a12995b6b8ff471ca56e30a5517e92abcdf58c5698be2d68c40325d1940336ac030cd2be35f37caf5deea1a8827b82cd1f9057c6bbad5c177f218ac20540
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMd1J:P5eznsjsguGDFqGZ2r7J
MD5 SHA1 SHA512 SSDEEP

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memory/440-23-0x0000000000400000-0x000000000040C000-memory.dmp

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memory/440-30-0x0000000074AB0000-0x0000000075061000-memory.dmp

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memory/440-28-0x0000000074AB0000-0x0000000075061000-memory.dmp

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memory/440-27-0x0000000074AB0000-0x0000000075061000-memory.dmp

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memory/2408-22-0x0000000074AB0000-0x0000000075061000-memory.dmp

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memory/2408-21-0x0000000074AB0000-0x0000000075061000-memory.dmp

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memory/2408-20-0x0000000074AB0000-0x0000000075061000-memory.dmp

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memory/2408-29-0x0000000074AB0000-0x0000000075061000-memory.dmp

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memory/2920-0-0x0000000074AB2000-0x0000000074AB3000-memory.dmp

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memory/2920-19-0x0000000074AB0000-0x0000000075061000-memory.dmp

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memory/2920-7-0x0000000074AB0000-0x0000000075061000-memory.dmp

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memory/2920-6-0x0000000074AB2000-0x0000000074AB3000-memory.dmp

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memory/2920-2-0x0000000074AB0000-0x0000000075061000-memory.dmp

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memory/2920-1-0x0000000074AB0000-0x0000000075061000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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