njrat | bc39b35fe49d2d8ffbfdbeb9f99c138919b2dc8acbfa8ee089c959b1270f1239

General

Target

JaffaCakes118_3d5d5001a558f06c8013f35d0708817c.exe
Size

100KB
MD5

3d5d5001a558f06c8013f35d0708817c
SHA1

41642aec0b7ea7010c71ed512e952de75745112b
SHA256

bc39b35fe49d2d8ffbfdbeb9f99c138919b2dc8acbfa8ee089c959b1270f1239
SHA512

a69346e463a6bee2ac84b6596d3faa74d3d527c53a52759d61c5a80bead05ae8a4fd49533807e54ffa518c09ca8937424ceb6604797225de35133ab3f2fd6724
SSDEEP

1536:WAp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4eP:d5eznsjsguGDFqG

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 family
njrat
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
216	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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	JaffaCakes118_3d5d5001a558f06c8013f35d0708817c.exe

Executes dropped EXE 2 IoCs

pid	Process
748	chargeable.exe
3392	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-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe"	JaffaCakes118_3d5d5001a558f06c8013f35d0708817c.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\JaffaCakes118_3d5d5001a558f06c8013f35d0708817c.exe"	JaffaCakes118_3d5d5001a558f06c8013f35d0708817c.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 748 set thread context of 3392	748	chargeable.exe	84

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	JaffaCakes118_3d5d5001a558f06c8013f35d0708817c.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 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	3392	chargeable.exe
Token: 33	3392	chargeable.exe
Token: SeIncBasePriorityPrivilege	3392	chargeable.exe
Token: 33	3392	chargeable.exe
Token: SeIncBasePriorityPrivilege	3392	chargeable.exe
Token: 33	3392	chargeable.exe
Token: SeIncBasePriorityPrivilege	3392	chargeable.exe
Token: 33	3392	chargeable.exe
Token: SeIncBasePriorityPrivilege	3392	chargeable.exe
Token: 33	3392	chargeable.exe
Token: SeIncBasePriorityPrivilege	3392	chargeable.exe
Token: 33	3392	chargeable.exe
Token: SeIncBasePriorityPrivilege	3392	chargeable.exe
Token: 33	3392	chargeable.exe
Token: SeIncBasePriorityPrivilege	3392	chargeable.exe
Token: 33	3392	chargeable.exe
Token: SeIncBasePriorityPrivilege	3392	chargeable.exe
Token: 33	3392	chargeable.exe
Token: SeIncBasePriorityPrivilege	3392	chargeable.exe
Token: 33	3392	chargeable.exe
Token: SeIncBasePriorityPrivilege	3392	chargeable.exe
Token: 33	3392	chargeable.exe
Token: SeIncBasePriorityPrivilege	3392	chargeable.exe
Token: 33	3392	chargeable.exe
Token: SeIncBasePriorityPrivilege	3392	chargeable.exe
Token: 33	3392	chargeable.exe
Token: SeIncBasePriorityPrivilege	3392	chargeable.exe
Token: 33	3392	chargeable.exe
Token: SeIncBasePriorityPrivilege	3392	chargeable.exe
Token: 33	3392	chargeable.exe
Token: SeIncBasePriorityPrivilege	3392	chargeable.exe
Token: 33	3392	chargeable.exe
Token: SeIncBasePriorityPrivilege	3392	chargeable.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2052 wrote to memory of 748	2052	JaffaCakes118_3d5d5001a558f06c8013f35d0708817c.exe	83
PID 2052 wrote to memory of 748	2052	JaffaCakes118_3d5d5001a558f06c8013f35d0708817c.exe	83
PID 2052 wrote to memory of 748	2052	JaffaCakes118_3d5d5001a558f06c8013f35d0708817c.exe	83
PID 748 wrote to memory of 3392	748	chargeable.exe	84
PID 748 wrote to memory of 3392	748	chargeable.exe	84
PID 748 wrote to memory of 3392	748	chargeable.exe	84
PID 748 wrote to memory of 3392	748	chargeable.exe	84
PID 748 wrote to memory of 3392	748	chargeable.exe	84
PID 748 wrote to memory of 3392	748	chargeable.exe	84
PID 748 wrote to memory of 3392	748	chargeable.exe	84
PID 748 wrote to memory of 3392	748	chargeable.exe	84
PID 3392 wrote to memory of 216	3392	chargeable.exe	85
PID 3392 wrote to memory of 216	3392	chargeable.exe	85
PID 3392 wrote to memory of 216	3392	chargeable.exe	85

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3d5d5001a558f06c8013f35d0708817c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3d5d5001a558f06c8013f35d0708817c.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2052
- 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:748
- - 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:3392
  - - 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:216

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
100KB

MD5
da1fadf64212bb659385ab1576aec0e3

SHA1
7552f0fdc0c71b39d23fc9acae17dbde955c6580

SHA256
e134d52a70f1d5763c78c6310b9781b6fa1338e89946db76c86e057573c2e2b9

SHA512
e5ef4193c5e87a835599d7fa8908d1591210948ea093251eeced025f270cd301ad8332a4c36c95ce5b2fd13c6c45ccde730a1c4151df12efa15ade3fd1300acf

Download Submit
memory/748-29-0x0000000075410000-0x00000000759C1000-memory.dmp

Filesize
5.7MB

Download
memory/748-21-0x0000000075410000-0x00000000759C1000-memory.dmp

Filesize
5.7MB

Download
memory/748-20-0x0000000075410000-0x00000000759C1000-memory.dmp

Filesize
5.7MB

Download
memory/2052-19-0x0000000075410000-0x00000000759C1000-memory.dmp

Filesize
5.7MB

Download
memory/2052-7-0x0000000075410000-0x00000000759C1000-memory.dmp

Filesize
5.7MB

Download
memory/2052-6-0x0000000075412000-0x0000000075413000-memory.dmp

Filesize
4KB

Download
memory/2052-0-0x0000000075412000-0x0000000075413000-memory.dmp

Filesize
4KB

Download
memory/2052-2-0x0000000075410000-0x00000000759C1000-memory.dmp

Filesize
5.7MB

Download
memory/2052-1-0x0000000075410000-0x00000000759C1000-memory.dmp

Filesize
5.7MB

Download
memory/3392-22-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/3392-26-0x0000000075410000-0x00000000759C1000-memory.dmp

Filesize
5.7MB

Download
memory/3392-28-0x0000000075410000-0x00000000759C1000-memory.dmp

Filesize
5.7MB

Download
memory/3392-27-0x0000000075410000-0x00000000759C1000-memory.dmp

Filesize
5.7MB

Download
memory/3392-30-0x0000000075410000-0x00000000759C1000-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