njrat | 1ebe4204410e273fe3c1512725ae8d5f7b9fd13043368eb34f64b60122def206

General

Target

Trojan.MSIL.Formbook.EE.exe
Size

117KB
MD5

337dd3a669fe7b5df98ad7701d6a35b0
SHA1

74144c494db29f1cc775e4953cb6816571e9868a
SHA256

1ebe4204410e273fe3c1512725ae8d5f7b9fd13043368eb34f64b60122def206
SHA512

c60735104bef63236bccc0bf346b97305aa268c2f795598286bbbc556aa0499ec8655434d46fe59000f7478b5039b41d68fcbe201169c82df7bcc9a27cc6a754
SSDEEP

1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDLW4:P5eznsjsguGDFqGZ2rDLX

Score

10^/10

njrat neuf discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

neuf

C2

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
4024	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-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	Trojan.MSIL.Formbook.EE.exe

Executes dropped EXE 2 IoCs

pid	Process
2792	chargeable.exe
2152	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-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe"	Trojan.MSIL.Formbook.EE.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Trojan.MSIL.Formbook.EE.exe"	Trojan.MSIL.Formbook.EE.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2792 set thread context of 2152	2792	chargeable.exe	90

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	chargeable.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Trojan.MSIL.Formbook.EE.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chargeable.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeDebugPrivilege	2152	chargeable.exe
Token: 33	2152	chargeable.exe
Token: SeIncBasePriorityPrivilege	2152	chargeable.exe
Token: 33	2152	chargeable.exe
Token: SeIncBasePriorityPrivilege	2152	chargeable.exe
Token: 33	2152	chargeable.exe
Token: SeIncBasePriorityPrivilege	2152	chargeable.exe
Token: 33	2152	chargeable.exe
Token: SeIncBasePriorityPrivilege	2152	chargeable.exe
Token: 33	2152	chargeable.exe
Token: SeIncBasePriorityPrivilege	2152	chargeable.exe
Token: 33	2152	chargeable.exe
Token: SeIncBasePriorityPrivilege	2152	chargeable.exe
Token: 33	2152	chargeable.exe
Token: SeIncBasePriorityPrivilege	2152	chargeable.exe
Token: 33	2152	chargeable.exe
Token: SeIncBasePriorityPrivilege	2152	chargeable.exe
Token: 33	2152	chargeable.exe
Token: SeIncBasePriorityPrivilege	2152	chargeable.exe
Token: 33	2152	chargeable.exe
Token: SeIncBasePriorityPrivilege	2152	chargeable.exe
Token: 33	2152	chargeable.exe
Token: SeIncBasePriorityPrivilege	2152	chargeable.exe
Token: 33	2152	chargeable.exe
Token: SeIncBasePriorityPrivilege	2152	chargeable.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4068 wrote to memory of 2792	4068	Trojan.MSIL.Formbook.EE.exe	89
PID 4068 wrote to memory of 2792	4068	Trojan.MSIL.Formbook.EE.exe	89
PID 4068 wrote to memory of 2792	4068	Trojan.MSIL.Formbook.EE.exe	89
PID 2792 wrote to memory of 2152	2792	chargeable.exe	90
PID 2792 wrote to memory of 2152	2792	chargeable.exe	90
PID 2792 wrote to memory of 2152	2792	chargeable.exe	90
PID 2792 wrote to memory of 2152	2792	chargeable.exe	90
PID 2792 wrote to memory of 2152	2792	chargeable.exe	90
PID 2792 wrote to memory of 2152	2792	chargeable.exe	90
PID 2792 wrote to memory of 2152	2792	chargeable.exe	90
PID 2792 wrote to memory of 2152	2792	chargeable.exe	90
PID 2152 wrote to memory of 4024	2152	chargeable.exe	91
PID 2152 wrote to memory of 4024	2152	chargeable.exe	91
PID 2152 wrote to memory of 4024	2152	chargeable.exe	91

C:\Users\Admin\AppData\Local\Temp\Trojan.MSIL.Formbook.EE.exe
"C:\Users\Admin\AppData\Local\Temp\Trojan.MSIL.Formbook.EE.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4068
- 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:2792
- - 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:2152
  - - 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:4024

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\chargeable.exe.log

Filesize
400B

MD5
0a9b4592cd49c3c21f6767c2dabda92f

SHA1
f534297527ae5ccc0ecb2221ddeb8e58daeb8b74

SHA256
c7effe9cb81a70d738dee863991afefab040290d4c4b78b4202383bcb9f88fcd

SHA512
6b878df474e5bbfb8e9e265f15a76560c2ef151dcebc6388c82d7f6f86ffaf83f5ade5a09f1842e493cb6c8fd63b0b88d088c728fd725f7139f965a5ee332307

Download Submit
C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe

Filesize
117KB

MD5
19afac4a740e64bc22feac05a27acd33

SHA1
3b3bba8a92364f3a1a903015726583c5bb7a02e9

SHA256
8f25af1c1ad58d5ce5de3c210b359df7e0fa23aec0453505172672055d72be49

SHA512
04f27d8ca3e428f64fb3f276738110911ce48d7327e0fa7f55b4af6a1315f52df50ff76603f7eb954ed4d771e8d3884eb1d39354ed0f101ba36f2bd49c316168

Download Submit
memory/2152-31-0x0000000074890000-0x0000000074E41000-memory.dmp

Filesize
5.7MB

Download
memory/2152-30-0x0000000074890000-0x0000000074E41000-memory.dmp

Filesize
5.7MB

Download
memory/2152-29-0x0000000074890000-0x0000000074E41000-memory.dmp

Filesize
5.7MB

Download
memory/2152-24-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/2792-23-0x0000000074890000-0x0000000074E41000-memory.dmp

Filesize
5.7MB

Download
memory/2792-28-0x0000000074890000-0x0000000074E41000-memory.dmp

Filesize
5.7MB

Download
memory/2792-21-0x0000000074890000-0x0000000074E41000-memory.dmp

Filesize
5.7MB

Download
memory/2792-22-0x0000000074890000-0x0000000074E41000-memory.dmp

Filesize
5.7MB

Download
memory/4068-7-0x0000000074890000-0x0000000074E41000-memory.dmp

Filesize
5.7MB

Download
memory/4068-19-0x0000000074890000-0x0000000074E41000-memory.dmp

Filesize
5.7MB

Download
memory/4068-20-0x0000000074890000-0x0000000074E41000-memory.dmp

Filesize
5.7MB

Download
memory/4068-0-0x0000000074892000-0x0000000074893000-memory.dmp

Filesize
4KB

Download
memory/4068-6-0x0000000074892000-0x0000000074893000-memory.dmp

Filesize
4KB

Download
memory/4068-2-0x0000000074890000-0x0000000074E41000-memory.dmp

Filesize
5.7MB

Download
memory/4068-1-0x0000000074890000-0x0000000074E41000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads