njrat | f93a07b9db9e6b6b8b9a33764bbdbbc94de3c0f964adad8a75afc10e5af7de45

Analysis

max time kernel
114s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
20/07/2024, 22:55

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General

Target
1e7da62945110b7089e04aaf6e5a51a0N.exe
Size 118KB
Sample240720-2wlzrayhmb
SHA256 f93a07b9db9e6b6b8b9a33764bbdbbc94de3c0f964adad8a75afc10e5af7de45
MD5 1e7da62945110b7089e04aaf6e5a51a0
SHA1 f93f93be654fb638c5088a23f964624d4c5f8cb9
SHA512 ca5398546830cdeb579daab62eab74971ec27918b60b53d6d016705d48fc10108c5e35087455dc10b98e759699b478fc61113d4a2ab8d613d6065e968b1b3a4d
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDL143T:P5eznsjsguGDFqGZ2rDL143T
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
4384	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-1-5-21-2990742725-2267136959-192470804-1000\Control Panel\International\Geo\Nation	1e7da62945110b7089e04aaf6e5a51a0N.exe

Executes dropped EXE 2 IoCs

pid	Process
756	chargeable.exe
2012	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-1-5-21-2990742725-2267136959-192470804-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe"	1e7da62945110b7089e04aaf6e5a51a0N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1e7da62945110b7089e04aaf6e5a51a0N.exe"	1e7da62945110b7089e04aaf6e5a51a0N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 756 set thread context of 2012	756	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	2012	chargeable.exe
Token: 33	2012	chargeable.exe
Token: SeIncBasePriorityPrivilege	2012	chargeable.exe
Token: 33	2012	chargeable.exe
Token: SeIncBasePriorityPrivilege	2012	chargeable.exe
Token: 33	2012	chargeable.exe
Token: SeIncBasePriorityPrivilege	2012	chargeable.exe
Token: 33	2012	chargeable.exe
Token: SeIncBasePriorityPrivilege	2012	chargeable.exe
Token: 33	2012	chargeable.exe
Token: SeIncBasePriorityPrivilege	2012	chargeable.exe
Token: 33	2012	chargeable.exe
Token: SeIncBasePriorityPrivilege	2012	chargeable.exe
Token: 33	2012	chargeable.exe
Token: SeIncBasePriorityPrivilege	2012	chargeable.exe
Token: 33	2012	chargeable.exe
Token: SeIncBasePriorityPrivilege	2012	chargeable.exe
Token: 33	2012	chargeable.exe
Token: SeIncBasePriorityPrivilege	2012	chargeable.exe
Token: 33	2012	chargeable.exe
Token: SeIncBasePriorityPrivilege	2012	chargeable.exe
Token: 33	2012	chargeable.exe
Token: SeIncBasePriorityPrivilege	2012	chargeable.exe
Token: 33	2012	chargeable.exe
Token: SeIncBasePriorityPrivilege	2012	chargeable.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3000 wrote to memory of 756	3000	1e7da62945110b7089e04aaf6e5a51a0N.exe	93
PID 3000 wrote to memory of 756	3000	1e7da62945110b7089e04aaf6e5a51a0N.exe	93
PID 3000 wrote to memory of 756	3000	1e7da62945110b7089e04aaf6e5a51a0N.exe	93
PID 756 wrote to memory of 2012	756	chargeable.exe	95
PID 756 wrote to memory of 2012	756	chargeable.exe	95
PID 756 wrote to memory of 2012	756	chargeable.exe	95
PID 756 wrote to memory of 2012	756	chargeable.exe	95
PID 756 wrote to memory of 2012	756	chargeable.exe	95
PID 756 wrote to memory of 2012	756	chargeable.exe	95
PID 756 wrote to memory of 2012	756	chargeable.exe	95
PID 756 wrote to memory of 2012	756	chargeable.exe	95
PID 2012 wrote to memory of 4384	2012	chargeable.exe	96
PID 2012 wrote to memory of 4384	2012	chargeable.exe	96
PID 2012 wrote to memory of 4384	2012	chargeable.exe	96

C:\Users\Admin\AppData\Local\Temp\1e7da62945110b7089e04aaf6e5a51a0N.exe
"C:\Users\Admin\AppData\Local\Temp\1e7da62945110b7089e04aaf6e5a51a0N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3000
- 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:756
- - 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:2012
  - - 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:4384

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 118KB
SHA256 23df79acae728f07c032989f993686ea571f477acc93573a7488db7ec72093ab
MD5 48f8abd2374fe8040897b513b130faab
SHA1 4be063cb8ab373f2c6562127e24d2b4b364fd9c3
SHA512 cf585a9613c2a7ee142a94d8a38b649b46b486dbca39b39eca279b52746bc5e8684e507f37933f08adf19550ec1637c51ef9d97d2e8b750dbb49c1cfcc566b60
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDL143K:P5eznsjsguGDFqGZ2rDL143K
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/756-17-0x0000000075420000-0x00000000759D1000-memory.dmp

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memory/756-22-0x0000000075420000-0x00000000759D1000-memory.dmp

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memory/2012-18-0x0000000000400000-0x000000000040C000-memory.dmp

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memory/2012-23-0x0000000075420000-0x00000000759D1000-memory.dmp

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memory/2012-24-0x0000000075420000-0x00000000759D1000-memory.dmp

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memory/2012-25-0x0000000075420000-0x00000000759D1000-memory.dmp

Download

memory/3000-0-0x0000000075422000-0x0000000075423000-memory.dmp

Download

memory/3000-1-0x0000000075420000-0x00000000759D1000-memory.dmp

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memory/3000-16-0x0000000075420000-0x00000000759D1000-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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