njrat | c34d1b28ffd3065326071030494de1be4f501a9ed882d0a6794f330326bb61fe

Analysis

max time kernel
115s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
18/08/2024, 08:00

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General

Target
c7cfffe2e3b1238fe11c690960128200N.exe
Size 118KB
Sample240818-jweasswhpm
SHA256 c34d1b28ffd3065326071030494de1be4f501a9ed882d0a6794f330326bb61fe
MD5 c7cfffe2e3b1238fe11c690960128200
SHA1 d625b7125b74fa24dc0b9610a1c6445ec8c9e9c7
SHA512 c9eac8a01297f998d72aff31cb63d069772b43456a297579676906230f29cccee7ea35626beb9dd4e650fefff1ad28975e8236846060c9d5c359b17caba86064
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDL14FOs:P5eznsjsguGDFqGZ2rDL14FOs
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
4760	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	c7cfffe2e3b1238fe11c690960128200N.exe

Executes dropped EXE 2 IoCs

pid	Process
2716	chargeable.exe
4540	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"	c7cfffe2e3b1238fe11c690960128200N.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\\c7cfffe2e3b1238fe11c690960128200N.exe"	c7cfffe2e3b1238fe11c690960128200N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2716 set thread context of 4540	2716	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

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	c7cfffe2e3b1238fe11c690960128200N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chargeable.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chargeable.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeDebugPrivilege	4540	chargeable.exe
Token: 33	4540	chargeable.exe
Token: SeIncBasePriorityPrivilege	4540	chargeable.exe
Token: 33	4540	chargeable.exe
Token: SeIncBasePriorityPrivilege	4540	chargeable.exe
Token: 33	4540	chargeable.exe
Token: SeIncBasePriorityPrivilege	4540	chargeable.exe
Token: 33	4540	chargeable.exe
Token: SeIncBasePriorityPrivilege	4540	chargeable.exe
Token: 33	4540	chargeable.exe
Token: SeIncBasePriorityPrivilege	4540	chargeable.exe
Token: 33	4540	chargeable.exe
Token: SeIncBasePriorityPrivilege	4540	chargeable.exe
Token: 33	4540	chargeable.exe
Token: SeIncBasePriorityPrivilege	4540	chargeable.exe
Token: 33	4540	chargeable.exe
Token: SeIncBasePriorityPrivilege	4540	chargeable.exe
Token: 33	4540	chargeable.exe
Token: SeIncBasePriorityPrivilege	4540	chargeable.exe
Token: 33	4540	chargeable.exe
Token: SeIncBasePriorityPrivilege	4540	chargeable.exe
Token: 33	4540	chargeable.exe
Token: SeIncBasePriorityPrivilege	4540	chargeable.exe
Token: 33	4540	chargeable.exe
Token: SeIncBasePriorityPrivilege	4540	chargeable.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 5096 wrote to memory of 2716	5096	c7cfffe2e3b1238fe11c690960128200N.exe	94
PID 5096 wrote to memory of 2716	5096	c7cfffe2e3b1238fe11c690960128200N.exe	94
PID 5096 wrote to memory of 2716	5096	c7cfffe2e3b1238fe11c690960128200N.exe	94
PID 2716 wrote to memory of 4540	2716	chargeable.exe	95
PID 2716 wrote to memory of 4540	2716	chargeable.exe	95
PID 2716 wrote to memory of 4540	2716	chargeable.exe	95
PID 2716 wrote to memory of 4540	2716	chargeable.exe	95
PID 2716 wrote to memory of 4540	2716	chargeable.exe	95
PID 2716 wrote to memory of 4540	2716	chargeable.exe	95
PID 2716 wrote to memory of 4540	2716	chargeable.exe	95
PID 2716 wrote to memory of 4540	2716	chargeable.exe	95
PID 4540 wrote to memory of 4760	4540	chargeable.exe	96
PID 4540 wrote to memory of 4760	4540	chargeable.exe	96
PID 4540 wrote to memory of 4760	4540	chargeable.exe	96

C:\Users\Admin\AppData\Local\Temp\c7cfffe2e3b1238fe11c690960128200N.exe
"C:\Users\Admin\AppData\Local\Temp\c7cfffe2e3b1238fe11c690960128200N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5096
- 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:2716
- - 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:4540
  - - 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:4760

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 118KB
SHA256 f23aa8de9d7f894ffaade2d1a2ed33fc6f663b61916c3ad5305dd9a714357068
MD5 651954a44b0cd163decb346febd5f429
SHA1 b4f35fbcc2fba36a3c203a914be85ab54ecc70ea
SHA512 6626732e4ef05446c05fc24f5b7b9572a875f6ab474fb3a3acbf5a7c3c7705dd5bbd7b7736f0b425a8fc61a40502452f1bda627e36b8ff2c596bf3b463170339
SSDEEP 1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDL14FOf:P5eznsjsguGDFqGZ2rDL14FOf
MD5 SHA1 SHA512 SSDEEP

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memory/2716-27-0x0000000074E10000-0x00000000753C1000-memory.dmp

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memory/2716-21-0x0000000074E10000-0x00000000753C1000-memory.dmp

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memory/2716-20-0x0000000074E10000-0x00000000753C1000-memory.dmp

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memory/4540-28-0x0000000074E10000-0x00000000753C1000-memory.dmp

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memory/4540-22-0x0000000000400000-0x000000000040C000-memory.dmp

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memory/4540-26-0x0000000074E10000-0x00000000753C1000-memory.dmp

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memory/4540-29-0x0000000074E10000-0x00000000753C1000-memory.dmp

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memory/4540-30-0x0000000074E10000-0x00000000753C1000-memory.dmp

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memory/4540-31-0x0000000074E10000-0x00000000753C1000-memory.dmp

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memory/5096-7-0x0000000074E10000-0x00000000753C1000-memory.dmp

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memory/5096-19-0x0000000074E10000-0x00000000753C1000-memory.dmp

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memory/5096-6-0x0000000074E12000-0x0000000074E13000-memory.dmp

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memory/5096-2-0x0000000074E10000-0x00000000753C1000-memory.dmp

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memory/5096-0-0x0000000074E12000-0x0000000074E13000-memory.dmp

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memory/5096-1-0x0000000074E10000-0x00000000753C1000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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