njrat | 651efbaaddced564347355a681a0f1aefcf36f5b7327385cee13598e05b331ff

Analysis

max time kernel
147s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
17/07/2024, 18:06

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General

Target
1a3860fd6344044e6e7790774cbeaf8d.exe
Size 115KB
Sample240717-wpqrgawarg
SHA256 651efbaaddced564347355a681a0f1aefcf36f5b7327385cee13598e05b331ff
MD5 1a3860fd6344044e6e7790774cbeaf8d
SHA1 de150e1973cace802849cdb182771de9dd0e9aaa
SHA512 98eb8ec354520f4e7dcd23699fa809cb5277515b8cff9fc0dfb4222b68b9a2795371f612c09bfca32d1f4e8247968b6812cbd3c1f848f3623646fe22173130d4
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMg:P5eznsjsguGDFqGZ2rg
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
1148	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	1a3860fd6344044e6e7790774cbeaf8d.exe

Executes dropped EXE 3 IoCs

pid	Process
444	chargeable.exe
3344	chargeable.exe
1464	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\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1a3860fd6344044e6e7790774cbeaf8d.exe"	1a3860fd6344044e6e7790774cbeaf8d.exe
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"	1a3860fd6344044e6e7790774cbeaf8d.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 444 set thread context of 3344	444	chargeable.exe	96
PID 444 set thread context of 1464	444	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 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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
856	1464	WerFault.exe	95

Suspicious use of AdjustPrivilegeToken 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	3344	chargeable.exe
Token: 33	3344	chargeable.exe
Token: SeIncBasePriorityPrivilege	3344	chargeable.exe
Token: 33	3344	chargeable.exe
Token: SeIncBasePriorityPrivilege	3344	chargeable.exe
Token: 33	3344	chargeable.exe
Token: SeIncBasePriorityPrivilege	3344	chargeable.exe
Token: 33	3344	chargeable.exe
Token: SeIncBasePriorityPrivilege	3344	chargeable.exe
Token: 33	3344	chargeable.exe
Token: SeIncBasePriorityPrivilege	3344	chargeable.exe
Token: 33	3344	chargeable.exe
Token: SeIncBasePriorityPrivilege	3344	chargeable.exe
Token: 33	3344	chargeable.exe
Token: SeIncBasePriorityPrivilege	3344	chargeable.exe
Token: 33	3344	chargeable.exe
Token: SeIncBasePriorityPrivilege	3344	chargeable.exe
Token: 33	3344	chargeable.exe
Token: SeIncBasePriorityPrivilege	3344	chargeable.exe
Token: 33	3344	chargeable.exe
Token: SeIncBasePriorityPrivilege	3344	chargeable.exe
Token: 33	3344	chargeable.exe
Token: SeIncBasePriorityPrivilege	3344	chargeable.exe
Token: 33	3344	chargeable.exe
Token: SeIncBasePriorityPrivilege	3344	chargeable.exe
Token: 33	3344	chargeable.exe
Token: SeIncBasePriorityPrivilege	3344	chargeable.exe
Token: 33	3344	chargeable.exe
Token: SeIncBasePriorityPrivilege	3344	chargeable.exe
Token: 33	3344	chargeable.exe
Token: SeIncBasePriorityPrivilege	3344	chargeable.exe
Token: 33	3344	chargeable.exe
Token: SeIncBasePriorityPrivilege	3344	chargeable.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 1540 wrote to memory of 444	1540	1a3860fd6344044e6e7790774cbeaf8d.exe	93
PID 1540 wrote to memory of 444	1540	1a3860fd6344044e6e7790774cbeaf8d.exe	93
PID 1540 wrote to memory of 444	1540	1a3860fd6344044e6e7790774cbeaf8d.exe	93
PID 444 wrote to memory of 1464	444	chargeable.exe	95
PID 444 wrote to memory of 1464	444	chargeable.exe	95
PID 444 wrote to memory of 1464	444	chargeable.exe	95
PID 444 wrote to memory of 3344	444	chargeable.exe	96
PID 444 wrote to memory of 3344	444	chargeable.exe	96
PID 444 wrote to memory of 3344	444	chargeable.exe	96
PID 444 wrote to memory of 3344	444	chargeable.exe	96
PID 444 wrote to memory of 3344	444	chargeable.exe	96
PID 444 wrote to memory of 3344	444	chargeable.exe	96
PID 444 wrote to memory of 3344	444	chargeable.exe	96
PID 444 wrote to memory of 3344	444	chargeable.exe	96
PID 444 wrote to memory of 1464	444	chargeable.exe	95
PID 444 wrote to memory of 1464	444	chargeable.exe	95
PID 444 wrote to memory of 1464	444	chargeable.exe	95
PID 444 wrote to memory of 1464	444	chargeable.exe	95
PID 444 wrote to memory of 1464	444	chargeable.exe	95
PID 3344 wrote to memory of 1148	3344	chargeable.exe	100
PID 3344 wrote to memory of 1148	3344	chargeable.exe	100
PID 3344 wrote to memory of 1148	3344	chargeable.exe	100

C:\Users\Admin\AppData\Local\Temp\1a3860fd6344044e6e7790774cbeaf8d.exe
"C:\Users\Admin\AppData\Local\Temp\1a3860fd6344044e6e7790774cbeaf8d.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1540
- 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:444
- - C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    3⤵
    - Executes dropped EXE
    PID:1464
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1464 -s 80
      4⤵
      Program crash
      PID:856
- - 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:3344
  - - 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:1148

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1464 -ip 1464
1⤵
PID:3120

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 115KB
SHA256 43e3626dab0ff317d8919ce086b4c8ab49023b02fdef23712597a4ddd002bea1
MD5 a82527e61a909ea3f27025c2ec0d54d4
SHA1 7b3fdf9e7dc7552a732d628661d78b0a48ae5ce4
SHA512 657699e265129427fbf6991c1581ccb6dffce4ed13c3f9b362a8de8169951282449f794410b2a3ed79b79feaffc8de1303d243f335bcdd05921de81227008e33
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuME:P5eznsjsguGDFqGZ2rE
MD5 SHA1 SHA512 SSDEEP

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memory/444-20-0x0000000074BA0000-0x0000000075151000-memory.dmp

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memory/444-17-0x0000000074BA0000-0x0000000075151000-memory.dmp

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memory/444-19-0x0000000074BA0000-0x0000000075151000-memory.dmp

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memory/444-28-0x0000000074BA0000-0x0000000075151000-memory.dmp

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memory/1540-2-0x0000000074BA0000-0x0000000075151000-memory.dmp

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memory/1540-18-0x0000000074BA0000-0x0000000075151000-memory.dmp

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memory/1540-0-0x0000000074BA2000-0x0000000074BA3000-memory.dmp

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memory/1540-1-0x0000000074BA0000-0x0000000075151000-memory.dmp

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memory/3344-21-0x0000000000400000-0x000000000040C000-memory.dmp

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memory/3344-27-0x0000000074BA0000-0x0000000075151000-memory.dmp

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memory/3344-29-0x0000000074BA0000-0x0000000075151000-memory.dmp

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memory/3344-30-0x0000000074BA0000-0x0000000075151000-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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