njrat | 5e6a4d71343b05a57bb904224619fbb47038cfaed1d82ea1a8bb744598d67849

Analysis

max time kernel
148s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
23/08/2024, 21:24

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General

Target
5e6a4d71343b05a57bb904224619fbb47038cfaed1d82ea1a8bb744598d67849.exe
Size 112KB
Sample240823-z9cbcsxdqa
SHA256 5e6a4d71343b05a57bb904224619fbb47038cfaed1d82ea1a8bb744598d67849
MD5 a7903da9c239f2936348b051fc3b6952
SHA1 746213e786722794d6db2c51bd4590698059d38f
SHA512 f5194be2d33741e6055cd6eb5fca51674b15754f856024b71653da148bd695346f20bceb35820eb98ea72910d12a8b6a68c6d3db302545acdbe0c5a0f95f21fd
SSDEEP 1536:orp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4xtKegoxmOBh73w:w5eznsjsguGDFqGx8egoxmO3rw
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
2116	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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	5e6a4d71343b05a57bb904224619fbb47038cfaed1d82ea1a8bb744598d67849.exe

Executes dropped EXE 2 IoCs

pid	Process
652	chargeable.exe
2396	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-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe"	5e6a4d71343b05a57bb904224619fbb47038cfaed1d82ea1a8bb744598d67849.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\5e6a4d71343b05a57bb904224619fbb47038cfaed1d82ea1a8bb744598d67849.exe"	5e6a4d71343b05a57bb904224619fbb47038cfaed1d82ea1a8bb744598d67849.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 652 set thread context of 2396	652	chargeable.exe	96

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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	chargeable.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5e6a4d71343b05a57bb904224619fbb47038cfaed1d82ea1a8bb744598d67849.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chargeable.exe

Suspicious use of AdjustPrivilegeToken 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	2396	chargeable.exe
Token: 33	2396	chargeable.exe
Token: SeIncBasePriorityPrivilege	2396	chargeable.exe
Token: 33	2396	chargeable.exe
Token: SeIncBasePriorityPrivilege	2396	chargeable.exe
Token: 33	2396	chargeable.exe
Token: SeIncBasePriorityPrivilege	2396	chargeable.exe
Token: 33	2396	chargeable.exe
Token: SeIncBasePriorityPrivilege	2396	chargeable.exe
Token: 33	2396	chargeable.exe
Token: SeIncBasePriorityPrivilege	2396	chargeable.exe
Token: 33	2396	chargeable.exe
Token: SeIncBasePriorityPrivilege	2396	chargeable.exe
Token: 33	2396	chargeable.exe
Token: SeIncBasePriorityPrivilege	2396	chargeable.exe
Token: 33	2396	chargeable.exe
Token: SeIncBasePriorityPrivilege	2396	chargeable.exe
Token: 33	2396	chargeable.exe
Token: SeIncBasePriorityPrivilege	2396	chargeable.exe
Token: 33	2396	chargeable.exe
Token: SeIncBasePriorityPrivilege	2396	chargeable.exe
Token: 33	2396	chargeable.exe
Token: SeIncBasePriorityPrivilege	2396	chargeable.exe
Token: 33	2396	chargeable.exe
Token: SeIncBasePriorityPrivilege	2396	chargeable.exe
Token: 33	2396	chargeable.exe
Token: SeIncBasePriorityPrivilege	2396	chargeable.exe
Token: 33	2396	chargeable.exe
Token: SeIncBasePriorityPrivilege	2396	chargeable.exe
Token: 33	2396	chargeable.exe
Token: SeIncBasePriorityPrivilege	2396	chargeable.exe
Token: 33	2396	chargeable.exe
Token: SeIncBasePriorityPrivilege	2396	chargeable.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3500 wrote to memory of 652	3500	5e6a4d71343b05a57bb904224619fbb47038cfaed1d82ea1a8bb744598d67849.exe	93
PID 3500 wrote to memory of 652	3500	5e6a4d71343b05a57bb904224619fbb47038cfaed1d82ea1a8bb744598d67849.exe	93
PID 3500 wrote to memory of 652	3500	5e6a4d71343b05a57bb904224619fbb47038cfaed1d82ea1a8bb744598d67849.exe	93
PID 652 wrote to memory of 2396	652	chargeable.exe	96
PID 652 wrote to memory of 2396	652	chargeable.exe	96
PID 652 wrote to memory of 2396	652	chargeable.exe	96
PID 652 wrote to memory of 2396	652	chargeable.exe	96
PID 652 wrote to memory of 2396	652	chargeable.exe	96
PID 652 wrote to memory of 2396	652	chargeable.exe	96
PID 652 wrote to memory of 2396	652	chargeable.exe	96
PID 652 wrote to memory of 2396	652	chargeable.exe	96
PID 2396 wrote to memory of 2116	2396	chargeable.exe	97
PID 2396 wrote to memory of 2116	2396	chargeable.exe	97
PID 2396 wrote to memory of 2116	2396	chargeable.exe	97

C:\Users\Admin\AppData\Local\Temp\5e6a4d71343b05a57bb904224619fbb47038cfaed1d82ea1a8bb744598d67849.exe
"C:\Users\Admin\AppData\Local\Temp\5e6a4d71343b05a57bb904224619fbb47038cfaed1d82ea1a8bb744598d67849.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3500
- 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:652
- - 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:2396
  - - 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:2116

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 112KB
SHA256 62ceaa25085525854a6ae44b4886f4e7cf0ccbfb4ccf61cf7051c7a60279aa34
MD5 d9767f373a8fa4d6b3f34988d150b91c
SHA1 fbbe83678a60da0a493649be72682f3003b65918
SHA512 bf1dc96f84eae4de6bf0bee34421bae3a0701dd8238a1287ffd0ad773a54fe9ef800edd9a92236b9ef552805cbbdfd95ab53581c65087bb13ebd4eb0222468ed
SSDEEP 1536:orp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4xtKegoxmOBh73l:w5eznsjsguGDFqGx8egoxmO3rl
MD5 SHA1 SHA512 SSDEEP

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memory/652-29-0x0000000074AD0000-0x0000000075081000-memory.dmp

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memory/652-21-0x0000000074AD0000-0x0000000075081000-memory.dmp

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memory/652-22-0x0000000074AD0000-0x0000000075081000-memory.dmp

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memory/652-23-0x0000000074AD0000-0x0000000075081000-memory.dmp

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memory/2396-28-0x0000000074AD0000-0x0000000075081000-memory.dmp

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memory/2396-24-0x0000000000400000-0x000000000040C000-memory.dmp

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memory/2396-30-0x0000000074AD0000-0x0000000075081000-memory.dmp

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memory/2396-31-0x0000000074AD0000-0x0000000075081000-memory.dmp

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memory/2396-32-0x0000000074AD0000-0x0000000075081000-memory.dmp

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memory/2396-33-0x0000000074AD0000-0x0000000075081000-memory.dmp

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memory/3500-19-0x0000000074AD0000-0x0000000075081000-memory.dmp

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memory/3500-2-0x0000000074AD0000-0x0000000075081000-memory.dmp

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memory/3500-7-0x0000000074AD0000-0x0000000075081000-memory.dmp

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memory/3500-20-0x0000000074AD0000-0x0000000075081000-memory.dmp

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memory/3500-6-0x0000000074AD2000-0x0000000074AD3000-memory.dmp

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memory/3500-0-0x0000000074AD2000-0x0000000074AD3000-memory.dmp

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memory/3500-1-0x0000000074AD0000-0x0000000075081000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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