njrat | 81c14b87edf38378b76af207724449cf77f14d71004a3848c0f859749baa2359

General

Target

81c14b87edf38378b76af207724449cf77f14d71004a3848c0f859749baa2359N.exe
Size

113KB
MD5

e861ff7cad7d40a53443e92985ae5cc0
SHA1

76024e8e8e87eb879f5daa79be2e1512c9e30769
SHA256

81c14b87edf38378b76af207724449cf77f14d71004a3848c0f859749baa2359
SHA512

e15b361cb916a80416249dc2c21696d58223615cd73521988d2d0be1cc232194c21209f83a84d82762d429462b2545057babd070d9c580f87fadc49ea0fe8b22
SSDEEP

1536:orp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4xtKegoxmOBh73RQ:w5eznsjsguGDFqGx8egoxmO3rRQ

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

Processes:

netsh.exe

pid	Process
2576	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

Processes:

81c14b87edf38378b76af207724449cf77f14d71004a3848c0f859749baa2359N.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	81c14b87edf38378b76af207724449cf77f14d71004a3848c0f859749baa2359N.exe

Executes dropped EXE 3 IoCs

Processes:

chargeable.exechargeable.exechargeable.exe

pid	Process
1880	chargeable.exe
4028	chargeable.exe
4024	chargeable.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

81c14b87edf38378b76af207724449cf77f14d71004a3848c0f859749baa2359N.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe"	81c14b87edf38378b76af207724449cf77f14d71004a3848c0f859749baa2359N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\81c14b87edf38378b76af207724449cf77f14d71004a3848c0f859749baa2359N.exe"	81c14b87edf38378b76af207724449cf77f14d71004a3848c0f859749baa2359N.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

chargeable.exe

description	pid	Process	procid_target
PID 1880 set thread context of 4028	1880	chargeable.exe	100
PID 1880 set thread context of 4024	1880	chargeable.exe	99

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

Processes:

netsh.exe

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

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
1688	4024	WerFault.exe	99

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

Processes:

81c14b87edf38378b76af207724449cf77f14d71004a3848c0f859749baa2359N.exechargeable.exechargeable.exenetsh.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	81c14b87edf38378b76af207724449cf77f14d71004a3848c0f859749baa2359N.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

Processes:

chargeable.exe

description	pid	Process
Token: SeDebugPrivilege	4028	chargeable.exe
Token: 33	4028	chargeable.exe
Token: SeIncBasePriorityPrivilege	4028	chargeable.exe
Token: 33	4028	chargeable.exe
Token: SeIncBasePriorityPrivilege	4028	chargeable.exe
Token: 33	4028	chargeable.exe
Token: SeIncBasePriorityPrivilege	4028	chargeable.exe
Token: 33	4028	chargeable.exe
Token: SeIncBasePriorityPrivilege	4028	chargeable.exe
Token: 33	4028	chargeable.exe
Token: SeIncBasePriorityPrivilege	4028	chargeable.exe
Token: 33	4028	chargeable.exe
Token: SeIncBasePriorityPrivilege	4028	chargeable.exe
Token: 33	4028	chargeable.exe
Token: SeIncBasePriorityPrivilege	4028	chargeable.exe
Token: 33	4028	chargeable.exe
Token: SeIncBasePriorityPrivilege	4028	chargeable.exe
Token: 33	4028	chargeable.exe
Token: SeIncBasePriorityPrivilege	4028	chargeable.exe
Token: 33	4028	chargeable.exe
Token: SeIncBasePriorityPrivilege	4028	chargeable.exe
Token: 33	4028	chargeable.exe
Token: SeIncBasePriorityPrivilege	4028	chargeable.exe
Token: 33	4028	chargeable.exe
Token: SeIncBasePriorityPrivilege	4028	chargeable.exe

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

81c14b87edf38378b76af207724449cf77f14d71004a3848c0f859749baa2359N.exechargeable.exechargeable.exe

description	pid	Process	procid_target
PID 4640 wrote to memory of 1880	4640	81c14b87edf38378b76af207724449cf77f14d71004a3848c0f859749baa2359N.exe	94
PID 4640 wrote to memory of 1880	4640	81c14b87edf38378b76af207724449cf77f14d71004a3848c0f859749baa2359N.exe	94
PID 4640 wrote to memory of 1880	4640	81c14b87edf38378b76af207724449cf77f14d71004a3848c0f859749baa2359N.exe	94
PID 1880 wrote to memory of 4024	1880	chargeable.exe	99
PID 1880 wrote to memory of 4024	1880	chargeable.exe	99
PID 1880 wrote to memory of 4024	1880	chargeable.exe	99
PID 1880 wrote to memory of 4028	1880	chargeable.exe	100
PID 1880 wrote to memory of 4028	1880	chargeable.exe	100
PID 1880 wrote to memory of 4028	1880	chargeable.exe	100
PID 1880 wrote to memory of 4028	1880	chargeable.exe	100
PID 1880 wrote to memory of 4028	1880	chargeable.exe	100
PID 1880 wrote to memory of 4028	1880	chargeable.exe	100
PID 1880 wrote to memory of 4028	1880	chargeable.exe	100
PID 1880 wrote to memory of 4028	1880	chargeable.exe	100
PID 1880 wrote to memory of 4024	1880	chargeable.exe	99
PID 1880 wrote to memory of 4024	1880	chargeable.exe	99
PID 1880 wrote to memory of 4024	1880	chargeable.exe	99
PID 1880 wrote to memory of 4024	1880	chargeable.exe	99
PID 1880 wrote to memory of 4024	1880	chargeable.exe	99
PID 4028 wrote to memory of 2576	4028	chargeable.exe	105
PID 4028 wrote to memory of 2576	4028	chargeable.exe	105
PID 4028 wrote to memory of 2576	4028	chargeable.exe	105

C:\Users\Admin\AppData\Local\Temp\81c14b87edf38378b76af207724449cf77f14d71004a3848c0f859749baa2359N.exe
"C:\Users\Admin\AppData\Local\Temp\81c14b87edf38378b76af207724449cf77f14d71004a3848c0f859749baa2359N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4640
- 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:1880
- - C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
    3⤵
    - Executes dropped EXE
    PID:4024
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4024 -s 80
      4⤵
      Program crash
      PID:1688
- - 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:4028
  - - 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:2576

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4024 -ip 4024
1⤵
PID:1492

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
113KB

MD5
2e634024fe58b77f36e9b961714556ce

SHA1
39c11885ce91bd44a4491178a2ca2211c9f8bf1b

SHA256
1b6d81349d85e74ac2c7887c36f23ebbd0f7d64acf80a503eaca2135eb83b883

SHA512
bfc68a2db9babbb6b550f6071bb331f7d0da5ddb5c6a85ae98da30ee7970dc4b155eb01935f5f11400ac7631d5a160243978b5560edc47038efa8b65d459d548

Download Submit
memory/1880-21-0x0000000074870000-0x0000000074E21000-memory.dmp

Filesize
5.7MB

Download
memory/1880-29-0x0000000074870000-0x0000000074E21000-memory.dmp

Filesize
5.7MB

Download
memory/1880-19-0x0000000074870000-0x0000000074E21000-memory.dmp

Filesize
5.7MB

Download
memory/1880-22-0x0000000074870000-0x0000000074E21000-memory.dmp

Filesize
5.7MB

Download
memory/4028-30-0x0000000074870000-0x0000000074E21000-memory.dmp

Filesize
5.7MB

Download
memory/4028-23-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/4028-31-0x0000000074870000-0x0000000074E21000-memory.dmp

Filesize
5.7MB

Download
memory/4028-32-0x0000000074870000-0x0000000074E21000-memory.dmp

Filesize
5.7MB

Download
memory/4640-20-0x0000000074870000-0x0000000074E21000-memory.dmp

Filesize
5.7MB

Download
memory/4640-7-0x0000000074870000-0x0000000074E21000-memory.dmp

Filesize
5.7MB

Download
memory/4640-6-0x0000000074872000-0x0000000074873000-memory.dmp

Filesize
4KB

Download
memory/4640-2-0x0000000074870000-0x0000000074E21000-memory.dmp

Filesize
5.7MB

Download
memory/4640-0-0x0000000074872000-0x0000000074873000-memory.dmp

Filesize
4KB

Download
memory/4640-1-0x0000000074870000-0x0000000074E21000-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