njrat | 1b2009eeaf6c0cc0ae6ef8f3fd33780a68d7612d8a6daf89d6e5a63dda1fc8b0

Analysis

max time kernel
117s
max time network
122s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
23/07/2024, 03:09

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General

Target
57e9521c9075243f2e7b499e508fd3c0N.exe
Size 112KB
Sample240723-dnt4dsvcql
SHA256 1b2009eeaf6c0cc0ae6ef8f3fd33780a68d7612d8a6daf89d6e5a63dda1fc8b0
MD5 57e9521c9075243f2e7b499e508fd3c0
SHA1 ff0bbaa0601ec91317471aa577c1fa6846380693
SHA512 54bf8922bbf3eac3a92ad1ee5cabea183b537f2487aa0e25be48a70062fd74558ebc8fa516847460ef11e28ef12954efb1f038ae55dc0d36db5813d19bc87a03
SSDEEP 1536:orp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4xtKegoxmOBh73Y:w5eznsjsguGDFqGx8egoxmO3rY
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

njrat neuf 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
2544	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-1-5-21-1750093773-264148664-1320403265-1000\Control Panel\International\Geo\Nation	57e9521c9075243f2e7b499e508fd3c0N.exe

Executes dropped EXE 2 IoCs

pid	Process
1288	chargeable.exe
5016	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-1-5-21-1750093773-264148664-1320403265-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe"	57e9521c9075243f2e7b499e508fd3c0N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1750093773-264148664-1320403265-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\57e9521c9075243f2e7b499e508fd3c0N.exe"	57e9521c9075243f2e7b499e508fd3c0N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1288 set thread context of 5016	1288	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

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeDebugPrivilege	5016	chargeable.exe
Token: 33	5016	chargeable.exe
Token: SeIncBasePriorityPrivilege	5016	chargeable.exe
Token: 33	5016	chargeable.exe
Token: SeIncBasePriorityPrivilege	5016	chargeable.exe
Token: 33	5016	chargeable.exe
Token: SeIncBasePriorityPrivilege	5016	chargeable.exe
Token: 33	5016	chargeable.exe
Token: SeIncBasePriorityPrivilege	5016	chargeable.exe
Token: 33	5016	chargeable.exe
Token: SeIncBasePriorityPrivilege	5016	chargeable.exe
Token: 33	5016	chargeable.exe
Token: SeIncBasePriorityPrivilege	5016	chargeable.exe
Token: 33	5016	chargeable.exe
Token: SeIncBasePriorityPrivilege	5016	chargeable.exe
Token: 33	5016	chargeable.exe
Token: SeIncBasePriorityPrivilege	5016	chargeable.exe
Token: 33	5016	chargeable.exe
Token: SeIncBasePriorityPrivilege	5016	chargeable.exe
Token: 33	5016	chargeable.exe
Token: SeIncBasePriorityPrivilege	5016	chargeable.exe
Token: 33	5016	chargeable.exe
Token: SeIncBasePriorityPrivilege	5016	chargeable.exe
Token: 33	5016	chargeable.exe
Token: SeIncBasePriorityPrivilege	5016	chargeable.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2336 wrote to memory of 1288	2336	57e9521c9075243f2e7b499e508fd3c0N.exe	92
PID 2336 wrote to memory of 1288	2336	57e9521c9075243f2e7b499e508fd3c0N.exe	92
PID 2336 wrote to memory of 1288	2336	57e9521c9075243f2e7b499e508fd3c0N.exe	92
PID 1288 wrote to memory of 5016	1288	chargeable.exe	95
PID 1288 wrote to memory of 5016	1288	chargeable.exe	95
PID 1288 wrote to memory of 5016	1288	chargeable.exe	95
PID 1288 wrote to memory of 5016	1288	chargeable.exe	95
PID 1288 wrote to memory of 5016	1288	chargeable.exe	95
PID 1288 wrote to memory of 5016	1288	chargeable.exe	95
PID 1288 wrote to memory of 5016	1288	chargeable.exe	95
PID 1288 wrote to memory of 5016	1288	chargeable.exe	95
PID 5016 wrote to memory of 2544	5016	chargeable.exe	96
PID 5016 wrote to memory of 2544	5016	chargeable.exe	96
PID 5016 wrote to memory of 2544	5016	chargeable.exe	96

C:\Users\Admin\AppData\Local\Temp\57e9521c9075243f2e7b499e508fd3c0N.exe
"C:\Users\Admin\AppData\Local\Temp\57e9521c9075243f2e7b499e508fd3c0N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2336
- C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
  "C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1288
- - C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:5016
  - - 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
      PID:2544

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

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 112KB
SHA256 ec3d3d0cd1fd822b1259ca3faa9a1d75670f8cb5bb1fbf13f87e8be7c42292a2
MD5 659e3ed1b104faaea9ef47bc2e7daf7a
SHA1 ade22df0c82568f97567545acb9103a35ea6ed77
SHA512 e0166b6ab0277206cff2e6d14a780c207bbc5bdd74f3fdaefba9af8530ae9154991c3c633873831e3bcf797df2151059c4a8e74182d1c955348b416d78518656
SSDEEP 1536:orp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4xtKegoxmOBh73t:w5eznsjsguGDFqGx8egoxmO3rt
MD5 SHA1 SHA512 SSDEEP

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memory/1288-18-0x00000000749A0000-0x0000000074F51000-memory.dmp

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memory/1288-19-0x00000000749A0000-0x0000000074F51000-memory.dmp

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memory/1288-20-0x00000000749A0000-0x0000000074F51000-memory.dmp

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memory/1288-25-0x00000000749A0000-0x0000000074F51000-memory.dmp

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memory/2336-2-0x00000000749A0000-0x0000000074F51000-memory.dmp

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memory/2336-0-0x00000000749A2000-0x00000000749A3000-memory.dmp

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memory/2336-17-0x00000000749A0000-0x0000000074F51000-memory.dmp

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memory/2336-1-0x00000000749A0000-0x0000000074F51000-memory.dmp

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memory/5016-21-0x0000000000400000-0x000000000040C000-memory.dmp

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memory/5016-26-0x00000000749A0000-0x0000000074F51000-memory.dmp

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memory/5016-27-0x00000000749A0000-0x0000000074F51000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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