njrat | ed302837e2c1187590482e69dc0b0f79485779cb8d3dd607321ff439d54042da

Analysis

max time kernel
148s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
24/07/2024, 04:32

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General

Target
ed302837e2c1187590482e69dc0b0f79485779cb8d3dd607321ff439d54042da.exe
Size 117KB
Sample240724-e5zwmsyarq
SHA256 ed302837e2c1187590482e69dc0b0f79485779cb8d3dd607321ff439d54042da
MD5 0cf5da10545ee0167013c3b5e0b5bba6
SHA1 6377f6a8fdafcc9dfaf81e54cf8fb7bbbdbd5dd1
SHA512 f5008a4dc3cbce1687ef7fd3d71d78f2ac93907e236499bb2d28d2224d94b3a2039b4a8b4a669baa8a24b8039ed2503d62051a9124d07b2b9da2efbd7bcf3534
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDLZlV:P5eznsjsguGDFqGZ2rDLF
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
1072	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-1-5-21-464762018-485119342-1613148473-1000\Control Panel\International\Geo\Nation	ed302837e2c1187590482e69dc0b0f79485779cb8d3dd607321ff439d54042da.exe

Executes dropped EXE 2 IoCs

pid	Process
3984	chargeable.exe
4840	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-1-5-21-464762018-485119342-1613148473-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ed302837e2c1187590482e69dc0b0f79485779cb8d3dd607321ff439d54042da.exe"	ed302837e2c1187590482e69dc0b0f79485779cb8d3dd607321ff439d54042da.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-464762018-485119342-1613148473-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe"	ed302837e2c1187590482e69dc0b0f79485779cb8d3dd607321ff439d54042da.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3984 set thread context of 4840	3984	chargeable.exe	97

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	ed302837e2c1187590482e69dc0b0f79485779cb8d3dd607321ff439d54042da.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 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	4840	chargeable.exe
Token: 33	4840	chargeable.exe
Token: SeIncBasePriorityPrivilege	4840	chargeable.exe
Token: 33	4840	chargeable.exe
Token: SeIncBasePriorityPrivilege	4840	chargeable.exe
Token: 33	4840	chargeable.exe
Token: SeIncBasePriorityPrivilege	4840	chargeable.exe
Token: 33	4840	chargeable.exe
Token: SeIncBasePriorityPrivilege	4840	chargeable.exe
Token: 33	4840	chargeable.exe
Token: SeIncBasePriorityPrivilege	4840	chargeable.exe
Token: 33	4840	chargeable.exe
Token: SeIncBasePriorityPrivilege	4840	chargeable.exe
Token: 33	4840	chargeable.exe
Token: SeIncBasePriorityPrivilege	4840	chargeable.exe
Token: 33	4840	chargeable.exe
Token: SeIncBasePriorityPrivilege	4840	chargeable.exe
Token: 33	4840	chargeable.exe
Token: SeIncBasePriorityPrivilege	4840	chargeable.exe
Token: 33	4840	chargeable.exe
Token: SeIncBasePriorityPrivilege	4840	chargeable.exe
Token: 33	4840	chargeable.exe
Token: SeIncBasePriorityPrivilege	4840	chargeable.exe
Token: 33	4840	chargeable.exe
Token: SeIncBasePriorityPrivilege	4840	chargeable.exe
Token: 33	4840	chargeable.exe
Token: SeIncBasePriorityPrivilege	4840	chargeable.exe
Token: 33	4840	chargeable.exe
Token: SeIncBasePriorityPrivilege	4840	chargeable.exe
Token: 33	4840	chargeable.exe
Token: SeIncBasePriorityPrivilege	4840	chargeable.exe
Token: 33	4840	chargeable.exe
Token: SeIncBasePriorityPrivilege	4840	chargeable.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1272 wrote to memory of 3984	1272	ed302837e2c1187590482e69dc0b0f79485779cb8d3dd607321ff439d54042da.exe	94
PID 1272 wrote to memory of 3984	1272	ed302837e2c1187590482e69dc0b0f79485779cb8d3dd607321ff439d54042da.exe	94
PID 1272 wrote to memory of 3984	1272	ed302837e2c1187590482e69dc0b0f79485779cb8d3dd607321ff439d54042da.exe	94
PID 3984 wrote to memory of 4840	3984	chargeable.exe	97
PID 3984 wrote to memory of 4840	3984	chargeable.exe	97
PID 3984 wrote to memory of 4840	3984	chargeable.exe	97
PID 3984 wrote to memory of 4840	3984	chargeable.exe	97
PID 3984 wrote to memory of 4840	3984	chargeable.exe	97
PID 3984 wrote to memory of 4840	3984	chargeable.exe	97
PID 3984 wrote to memory of 4840	3984	chargeable.exe	97
PID 3984 wrote to memory of 4840	3984	chargeable.exe	97
PID 4840 wrote to memory of 1072	4840	chargeable.exe	98
PID 4840 wrote to memory of 1072	4840	chargeable.exe	98
PID 4840 wrote to memory of 1072	4840	chargeable.exe	98

C:\Users\Admin\AppData\Local\Temp\ed302837e2c1187590482e69dc0b0f79485779cb8d3dd607321ff439d54042da.exe
"C:\Users\Admin\AppData\Local\Temp\ed302837e2c1187590482e69dc0b0f79485779cb8d3dd607321ff439d54042da.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1272
- 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:3984
- - 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:4840
  - - 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:1072

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 117KB
SHA256 04f52da8418a12e2da8594ed50b252db69e6ad51860cf44ddfea2d6ccd1cc6af
MD5 c1abddb1455474ad8810a766373d2089
SHA1 48479c8b319e2be1f211fb11e7248b249601d956
SHA512 5b3876f7a55e85cb5a5a9510af28404ab602ae4ebbc70b05c06affa4d0c7548fbc0b43455f6f623fcb5d2cc4ce6cd6fb8df4e5866c4dd28d398c114c287ba2a7
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDLZlc:P5eznsjsguGDFqGZ2rDLs
MD5 SHA1 SHA512 SSDEEP

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memory/1272-0-0x0000000074CB2000-0x0000000074CB3000-memory.dmp

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memory/1272-1-0x0000000074CB0000-0x0000000075261000-memory.dmp

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memory/1272-2-0x0000000074CB0000-0x0000000075261000-memory.dmp

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memory/1272-17-0x0000000074CB0000-0x0000000075261000-memory.dmp

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memory/3984-19-0x0000000074CB0000-0x0000000075261000-memory.dmp

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memory/3984-18-0x0000000074CB0000-0x0000000075261000-memory.dmp

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memory/3984-24-0x0000000074CB0000-0x0000000075261000-memory.dmp

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memory/4840-20-0x0000000000400000-0x000000000040C000-memory.dmp

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memory/4840-25-0x0000000074CB0000-0x0000000075261000-memory.dmp

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memory/4840-26-0x0000000074CB0000-0x0000000075261000-memory.dmp

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memory/4840-27-0x0000000074CB0000-0x0000000075261000-memory.dmp

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memory/4840-28-0x0000000074CB0000-0x0000000075261000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads