njrat | 8cef03b0ba383d5e40062d57f03579936c8d1e0b42c6f480f4b93bcedb284398

General

Target

8cef03b0ba383d5e40062d57f03579936c8d1e0b42c6f480f4b93bcedb284398N.exe
Size

118KB
MD5

f770720a1144d0e0c46c0530b601d860
SHA1

384435b2abcf711571b656c5e500eb6f82616f96
SHA256

8cef03b0ba383d5e40062d57f03579936c8d1e0b42c6f480f4b93bcedb284398
SHA512

20ffd3eed997998dffd24f3dbc6dd569d29bdd1fc3a2fc266ad3d52b17164e7af5b59b954641a81f4d09a97a0632076f0bf84a8d23e202b726037e8a9d8c074b
SSDEEP

1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDLf3:P5eznsjsguGDFqGZ2rDLf3

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
1156	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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	8cef03b0ba383d5e40062d57f03579936c8d1e0b42c6f480f4b93bcedb284398N.exe

Executes dropped EXE 2 IoCs

pid	Process
4988	chargeable.exe
1756	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-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\confuse = "C:\\Users\\Admin\\AppData\\Roaming\\confuse\\chargeable.exe"	8cef03b0ba383d5e40062d57f03579936c8d1e0b42c6f480f4b93bcedb284398N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysMain = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8cef03b0ba383d5e40062d57f03579936c8d1e0b42c6f480f4b93bcedb284398N.exe"	8cef03b0ba383d5e40062d57f03579936c8d1e0b42c6f480f4b93bcedb284398N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4988 set thread context of 1756	4988	chargeable.exe	93

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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	8cef03b0ba383d5e40062d57f03579936c8d1e0b42c6f480f4b93bcedb284398N.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	1756	chargeable.exe
Token: 33	1756	chargeable.exe
Token: SeIncBasePriorityPrivilege	1756	chargeable.exe
Token: 33	1756	chargeable.exe
Token: SeIncBasePriorityPrivilege	1756	chargeable.exe
Token: 33	1756	chargeable.exe
Token: SeIncBasePriorityPrivilege	1756	chargeable.exe
Token: 33	1756	chargeable.exe
Token: SeIncBasePriorityPrivilege	1756	chargeable.exe
Token: 33	1756	chargeable.exe
Token: SeIncBasePriorityPrivilege	1756	chargeable.exe
Token: 33	1756	chargeable.exe
Token: SeIncBasePriorityPrivilege	1756	chargeable.exe
Token: 33	1756	chargeable.exe
Token: SeIncBasePriorityPrivilege	1756	chargeable.exe
Token: 33	1756	chargeable.exe
Token: SeIncBasePriorityPrivilege	1756	chargeable.exe
Token: 33	1756	chargeable.exe
Token: SeIncBasePriorityPrivilege	1756	chargeable.exe
Token: 33	1756	chargeable.exe
Token: SeIncBasePriorityPrivilege	1756	chargeable.exe
Token: 33	1756	chargeable.exe
Token: SeIncBasePriorityPrivilege	1756	chargeable.exe
Token: 33	1756	chargeable.exe
Token: SeIncBasePriorityPrivilege	1756	chargeable.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4028 wrote to memory of 4988	4028	8cef03b0ba383d5e40062d57f03579936c8d1e0b42c6f480f4b93bcedb284398N.exe	86
PID 4028 wrote to memory of 4988	4028	8cef03b0ba383d5e40062d57f03579936c8d1e0b42c6f480f4b93bcedb284398N.exe	86
PID 4028 wrote to memory of 4988	4028	8cef03b0ba383d5e40062d57f03579936c8d1e0b42c6f480f4b93bcedb284398N.exe	86
PID 4988 wrote to memory of 1756	4988	chargeable.exe	93
PID 4988 wrote to memory of 1756	4988	chargeable.exe	93
PID 4988 wrote to memory of 1756	4988	chargeable.exe	93
PID 4988 wrote to memory of 1756	4988	chargeable.exe	93
PID 4988 wrote to memory of 1756	4988	chargeable.exe	93
PID 4988 wrote to memory of 1756	4988	chargeable.exe	93
PID 4988 wrote to memory of 1756	4988	chargeable.exe	93
PID 4988 wrote to memory of 1756	4988	chargeable.exe	93
PID 1756 wrote to memory of 1156	1756	chargeable.exe	100
PID 1756 wrote to memory of 1156	1756	chargeable.exe	100
PID 1756 wrote to memory of 1156	1756	chargeable.exe	100

C:\Users\Admin\AppData\Local\Temp\8cef03b0ba383d5e40062d57f03579936c8d1e0b42c6f480f4b93bcedb284398N.exe
"C:\Users\Admin\AppData\Local\Temp\8cef03b0ba383d5e40062d57f03579936c8d1e0b42c6f480f4b93bcedb284398N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4028
- 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:4988
- - 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:1756
  - - 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:1156

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
118KB

MD5
08945d00c0562bdedf04d11812161576

SHA1
23b617231260a974fcff5ec1cb1c063d55f59b22

SHA256
5b27d410630ac13d074ad916d9121c548c98c8c0d4e84da5c926042982ca8f82

SHA512
ca019bef4cef12d0eb1ba2d6e61aa371fe95798ffb0793ea77cee8c02bb6e1772a77beca78055d82e05b532acb244ab68fc044e8aaab2ce166301453fb9508fd

Download Submit
memory/1756-22-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/1756-29-0x0000000075320000-0x00000000758D1000-memory.dmp

Filesize
5.7MB

Download
memory/1756-28-0x0000000075320000-0x00000000758D1000-memory.dmp

Filesize
5.7MB

Download
memory/1756-27-0x0000000075320000-0x00000000758D1000-memory.dmp

Filesize
5.7MB

Download
memory/4028-6-0x0000000075322000-0x0000000075323000-memory.dmp

Filesize
4KB

Download
memory/4028-19-0x0000000075320000-0x00000000758D1000-memory.dmp

Filesize
5.7MB

Download
memory/4028-7-0x0000000075320000-0x00000000758D1000-memory.dmp

Filesize
5.7MB

Download
memory/4028-0-0x0000000075322000-0x0000000075323000-memory.dmp

Filesize
4KB

Download
memory/4028-2-0x0000000075320000-0x00000000758D1000-memory.dmp

Filesize
5.7MB

Download
memory/4028-1-0x0000000075320000-0x00000000758D1000-memory.dmp

Filesize
5.7MB

Download
memory/4988-21-0x0000000075320000-0x00000000758D1000-memory.dmp

Filesize
5.7MB

Download
memory/4988-20-0x0000000075320000-0x00000000758D1000-memory.dmp

Filesize
5.7MB

Download
memory/4988-26-0x0000000075320000-0x00000000758D1000-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