njrat | 90067134519fe3a8071b6e4e7222beb95c7e50d78c44139dc128e13437b67c68

General

Target

Trojan.MSIL.Formbook.EE.exe
Size

116KB
MD5

3955b3b4240331161d1acb07293c2010
SHA1

e159f1af9169e5d716a5a6c90c70953982eadf0f
SHA256

90067134519fe3a8071b6e4e7222beb95c7e50d78c44139dc128e13437b67c68
SHA512

4b7d9c970e9f499f3f7e7bd71674bd01854142b2c3065b6feb4a202292b77e81fffe77b6eb9fe1d4d218bf9889bf4f9febebbe6116ba0acddb00f3784a08bdc1
SSDEEP

1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDL7:P5eznsjsguGDFqGZ2rDL7

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
3300	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-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	Trojan.MSIL.Formbook.EE.exe

Executes dropped EXE 2 IoCs

pid	Process
4536	chargeable.exe
3712	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-1-5-21-4182098368-2521458979-3782681353-1000\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-1-5-21-4182098368-2521458979-3782681353-1000\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 4536 set thread context of 3712	4536	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	Trojan.MSIL.Formbook.EE.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	3712	chargeable.exe
Token: 33	3712	chargeable.exe
Token: SeIncBasePriorityPrivilege	3712	chargeable.exe
Token: 33	3712	chargeable.exe
Token: SeIncBasePriorityPrivilege	3712	chargeable.exe
Token: 33	3712	chargeable.exe
Token: SeIncBasePriorityPrivilege	3712	chargeable.exe
Token: 33	3712	chargeable.exe
Token: SeIncBasePriorityPrivilege	3712	chargeable.exe
Token: 33	3712	chargeable.exe
Token: SeIncBasePriorityPrivilege	3712	chargeable.exe
Token: 33	3712	chargeable.exe
Token: SeIncBasePriorityPrivilege	3712	chargeable.exe
Token: 33	3712	chargeable.exe
Token: SeIncBasePriorityPrivilege	3712	chargeable.exe
Token: 33	3712	chargeable.exe
Token: SeIncBasePriorityPrivilege	3712	chargeable.exe
Token: 33	3712	chargeable.exe
Token: SeIncBasePriorityPrivilege	3712	chargeable.exe
Token: 33	3712	chargeable.exe
Token: SeIncBasePriorityPrivilege	3712	chargeable.exe
Token: 33	3712	chargeable.exe
Token: SeIncBasePriorityPrivilege	3712	chargeable.exe
Token: 33	3712	chargeable.exe
Token: SeIncBasePriorityPrivilege	3712	chargeable.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1792 wrote to memory of 4536	1792	Trojan.MSIL.Formbook.EE.exe	88
PID 1792 wrote to memory of 4536	1792	Trojan.MSIL.Formbook.EE.exe	88
PID 1792 wrote to memory of 4536	1792	Trojan.MSIL.Formbook.EE.exe	88
PID 4536 wrote to memory of 3712	4536	chargeable.exe	90
PID 4536 wrote to memory of 3712	4536	chargeable.exe	90
PID 4536 wrote to memory of 3712	4536	chargeable.exe	90
PID 4536 wrote to memory of 3712	4536	chargeable.exe	90
PID 4536 wrote to memory of 3712	4536	chargeable.exe	90
PID 4536 wrote to memory of 3712	4536	chargeable.exe	90
PID 4536 wrote to memory of 3712	4536	chargeable.exe	90
PID 4536 wrote to memory of 3712	4536	chargeable.exe	90
PID 3712 wrote to memory of 3300	3712	chargeable.exe	91
PID 3712 wrote to memory of 3300	3712	chargeable.exe	91
PID 3712 wrote to memory of 3300	3712	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:1792
- 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:4536
- - 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:3712
  - - 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:3300

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
116KB

MD5
9acb6e27af1b4d79d8ff5504fc6b5d31

SHA1
26176ad0df2157792a6f7014c6d4990de1436fb6

SHA256
69ac2d499a616c1dc28992633a7dc57e877683a87381c707c2c577e35afb284e

SHA512
287b233d04dd8abfb77a3b4c37c19a0905b4cdc85d48b61065f9cec0eea26cb634b548bab8ca21667ca4cb3bc21d1869af507d84acde7f75a7f2900ce444b39f

Download Submit
memory/1792-7-0x0000000075220000-0x00000000757D1000-memory.dmp

Filesize
5.7MB

Download
memory/1792-1-0x0000000075220000-0x00000000757D1000-memory.dmp

Filesize
5.7MB

Download
memory/1792-0-0x0000000075222000-0x0000000075223000-memory.dmp

Filesize
4KB

Download
memory/1792-2-0x0000000075220000-0x00000000757D1000-memory.dmp

Filesize
5.7MB

Download
memory/1792-19-0x0000000075220000-0x00000000757D1000-memory.dmp

Filesize
5.7MB

Download
memory/1792-20-0x0000000075220000-0x00000000757D1000-memory.dmp

Filesize
5.7MB

Download
memory/1792-6-0x0000000075222000-0x0000000075223000-memory.dmp

Filesize
4KB

Download
memory/3712-24-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/3712-29-0x0000000075220000-0x00000000757D1000-memory.dmp

Filesize
5.7MB

Download
memory/3712-30-0x0000000075220000-0x00000000757D1000-memory.dmp

Filesize
5.7MB

Download
memory/3712-31-0x0000000075220000-0x00000000757D1000-memory.dmp

Filesize
5.7MB

Download
memory/4536-22-0x0000000075220000-0x00000000757D1000-memory.dmp

Filesize
5.7MB

Download
memory/4536-23-0x0000000075220000-0x00000000757D1000-memory.dmp

Filesize
5.7MB

Download
memory/4536-21-0x0000000075220000-0x00000000757D1000-memory.dmp

Filesize
5.7MB

Download
memory/4536-28-0x0000000075220000-0x00000000757D1000-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