njrat | 01b7c4f2fd331fa3b60509d40f17e18622cc4e2e0d51d2da642a8a169b4099b3

Analysis

max time kernel
146s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
24/06/2024, 01:01

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General

Target
06573d2a17de5eda5ec8fe95fc49eab2.exe
Size 111KB
Sample240624-bc75rs1hqa
SHA256 01b7c4f2fd331fa3b60509d40f17e18622cc4e2e0d51d2da642a8a169b4099b3
MD5 06573d2a17de5eda5ec8fe95fc49eab2
SHA1 30fdf184938a9d92efec22515fd88dacadea61eb
SHA512 fd62c791b650a8396e27379e3a53a4e6dd28e3176ed1fb820bf93477fc651223b039497cf06f94f2e99041018b92ee56997fe8eae4d164a7d8562f5b860fcb71
SSDEEP 1536:orp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4xtKegoxmOBh73B:w5eznsjsguGDFqGx8egoxmO3rB
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
2436	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-1-5-21-200405930-3877336739-3533750831-1000\Control Panel\International\Geo\Nation	06573d2a17de5eda5ec8fe95fc49eab2.exe

Executes dropped EXE 2 IoCs

pid	Process
4752	chargeable.exe
1636	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-1-5-21-200405930-3877336739-3533750831-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe"	06573d2a17de5eda5ec8fe95fc49eab2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-200405930-3877336739-3533750831-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\06573d2a17de5eda5ec8fe95fc49eab2.exe"	06573d2a17de5eda5ec8fe95fc49eab2.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4752 set thread context of 1636	4752	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

Suspicious use of AdjustPrivilegeToken 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	1636	chargeable.exe
Token: 33	1636	chargeable.exe
Token: SeIncBasePriorityPrivilege	1636	chargeable.exe
Token: 33	1636	chargeable.exe
Token: SeIncBasePriorityPrivilege	1636	chargeable.exe
Token: 33	1636	chargeable.exe
Token: SeIncBasePriorityPrivilege	1636	chargeable.exe
Token: 33	1636	chargeable.exe
Token: SeIncBasePriorityPrivilege	1636	chargeable.exe
Token: 33	1636	chargeable.exe
Token: SeIncBasePriorityPrivilege	1636	chargeable.exe
Token: 33	1636	chargeable.exe
Token: SeIncBasePriorityPrivilege	1636	chargeable.exe
Token: 33	1636	chargeable.exe
Token: SeIncBasePriorityPrivilege	1636	chargeable.exe
Token: 33	1636	chargeable.exe
Token: SeIncBasePriorityPrivilege	1636	chargeable.exe
Token: 33	1636	chargeable.exe
Token: SeIncBasePriorityPrivilege	1636	chargeable.exe
Token: 33	1636	chargeable.exe
Token: SeIncBasePriorityPrivilege	1636	chargeable.exe
Token: 33	1636	chargeable.exe
Token: SeIncBasePriorityPrivilege	1636	chargeable.exe
Token: 33	1636	chargeable.exe
Token: SeIncBasePriorityPrivilege	1636	chargeable.exe
Token: 33	1636	chargeable.exe
Token: SeIncBasePriorityPrivilege	1636	chargeable.exe
Token: 33	1636	chargeable.exe
Token: SeIncBasePriorityPrivilege	1636	chargeable.exe
Token: 33	1636	chargeable.exe
Token: SeIncBasePriorityPrivilege	1636	chargeable.exe
Token: 33	1636	chargeable.exe
Token: SeIncBasePriorityPrivilege	1636	chargeable.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3032 wrote to memory of 4752	3032	06573d2a17de5eda5ec8fe95fc49eab2.exe	91
PID 3032 wrote to memory of 4752	3032	06573d2a17de5eda5ec8fe95fc49eab2.exe	91
PID 3032 wrote to memory of 4752	3032	06573d2a17de5eda5ec8fe95fc49eab2.exe	91
PID 4752 wrote to memory of 1636	4752	chargeable.exe	93
PID 4752 wrote to memory of 1636	4752	chargeable.exe	93
PID 4752 wrote to memory of 1636	4752	chargeable.exe	93
PID 4752 wrote to memory of 1636	4752	chargeable.exe	93
PID 4752 wrote to memory of 1636	4752	chargeable.exe	93
PID 4752 wrote to memory of 1636	4752	chargeable.exe	93
PID 4752 wrote to memory of 1636	4752	chargeable.exe	93
PID 4752 wrote to memory of 1636	4752	chargeable.exe	93
PID 1636 wrote to memory of 2436	1636	chargeable.exe	95
PID 1636 wrote to memory of 2436	1636	chargeable.exe	95
PID 1636 wrote to memory of 2436	1636	chargeable.exe	95

C:\Users\Admin\AppData\Local\Temp\06573d2a17de5eda5ec8fe95fc49eab2.exe
"C:\Users\Admin\AppData\Local\Temp\06573d2a17de5eda5ec8fe95fc49eab2.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3032
- 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:4752
- - 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:1636
  - - 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:2436

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 111KB
SHA256 2bfde2c69ecf825d2b88e7202d5a087bae909d1df927cdcb94210ca26bfd5fb9
MD5 a7a722234afd6ff669a184223221f803
SHA1 1c96bfe2d3d7ad64a563bf4993b02c12d1968a9a
SHA512 e9f404e23e759b1cda4fb276f807b6ea832d1406bebefee572d0eee8fcf170054b4b2ee11d68ddd75f2908e87e70d4928f28e4bd535c2504f2f98fcc0e068894
SSDEEP 1536:orp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4xtKegoxmOBh73c:w5eznsjsguGDFqGx8egoxmO3rc
MD5 SHA1 SHA512 SSDEEP

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memory/1636-26-0x0000000075200000-0x00000000757B1000-memory.dmp

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memory/1636-27-0x0000000075200000-0x00000000757B1000-memory.dmp

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memory/1636-20-0x0000000000400000-0x000000000040C000-memory.dmp

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memory/1636-24-0x0000000075200000-0x00000000757B1000-memory.dmp

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memory/3032-1-0x0000000075200000-0x00000000757B1000-memory.dmp

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memory/3032-2-0x0000000075200000-0x00000000757B1000-memory.dmp

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memory/3032-17-0x0000000075200000-0x00000000757B1000-memory.dmp

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memory/3032-0-0x0000000075202000-0x0000000075203000-memory.dmp

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memory/4752-19-0x0000000075200000-0x00000000757B1000-memory.dmp

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memory/4752-25-0x0000000075200000-0x00000000757B1000-memory.dmp

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memory/4752-18-0x0000000075200000-0x00000000757B1000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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