njrat | 9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935

General

Target

9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe
Size

1.2MB
MD5

89f61f4ce69f8aa2d6b5a71314fe8ee0
SHA1

ac1805406e02bbba5ed1af845633e12d44e431bf
SHA256

9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935
SHA512

f357e39f8af319778af221408c19846be878906d0400a709de4174b2566118207fd551566ba46ad40272cbb49f58336599b214e47c8133f39e64611407bd1dc5
SSDEEP

24576:eAHnh+eWsN3skA4RV1Hom2KXMmHaW7aWvCaFg5a7PCmWX95h:Jh+ZkldoPK8YaW7CaZ7IHh

Score

10^/10

njrat redlanhopto discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

redlanhopto

C2

redlan.hopto.org:5553

Mutex

d25d360449d7bab3069e1b77b3a914a3

Attributes

reg_key
d25d360449d7bab3069e1b77b3a914a3
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
2712	netsh.exe

Executes dropped EXE 1 IoCs

pid	Process
1748	data.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/files/0x000b000000012281-15.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2208 set thread context of 2412	2208	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe	31

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 5 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	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	data.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
3052	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2208	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe
2208	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe
1748	data.exe
1748	data.exe

Suspicious use of AdjustPrivilegeToken 21 IoCs

description	pid	Process
Token: SeDebugPrivilege	2412	RegAsm.exe
Token: 33	2412	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2412	RegAsm.exe
Token: 33	2412	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2412	RegAsm.exe
Token: 33	2412	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2412	RegAsm.exe
Token: 33	2412	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2412	RegAsm.exe
Token: 33	2412	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2412	RegAsm.exe
Token: 33	2412	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2412	RegAsm.exe
Token: 33	2412	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2412	RegAsm.exe
Token: 33	2412	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2412	RegAsm.exe
Token: 33	2412	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2412	RegAsm.exe
Token: 33	2412	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2412	RegAsm.exe

Suspicious use of FindShellTrayWindow 6 IoCs

pid	Process
2208	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe
2208	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe
2208	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe
1748	data.exe
1748	data.exe
1748	data.exe

Suspicious use of SendNotifyMessage 6 IoCs

pid	Process
2208	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe
2208	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe
2208	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe
1748	data.exe
1748	data.exe
1748	data.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2208 wrote to memory of 2412	2208	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe	31
PID 2208 wrote to memory of 2412	2208	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe	31
PID 2208 wrote to memory of 2412	2208	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe	31
PID 2208 wrote to memory of 2412	2208	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe	31
PID 2208 wrote to memory of 2412	2208	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe	31
PID 2208 wrote to memory of 2412	2208	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe	31
PID 2208 wrote to memory of 2412	2208	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe	31
PID 2208 wrote to memory of 2412	2208	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe	31
PID 2208 wrote to memory of 2412	2208	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe	31
PID 2412 wrote to memory of 2712	2412	RegAsm.exe	32
PID 2412 wrote to memory of 2712	2412	RegAsm.exe	32
PID 2412 wrote to memory of 2712	2412	RegAsm.exe	32
PID 2412 wrote to memory of 2712	2412	RegAsm.exe	32
PID 2208 wrote to memory of 3052	2208	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe	35
PID 2208 wrote to memory of 3052	2208	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe	35
PID 2208 wrote to memory of 3052	2208	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe	35
PID 2208 wrote to memory of 3052	2208	9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe	35
PID 2000 wrote to memory of 1748	2000	taskeng.exe	39
PID 2000 wrote to memory of 1748	2000	taskeng.exe	39
PID 2000 wrote to memory of 1748	2000	taskeng.exe	39
PID 2000 wrote to memory of 1748	2000	taskeng.exe	39

C:\Users\Admin\AppData\Local\Temp\9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe
"C:\Users\Admin\AppData\Local\Temp\9e3bcb18de2597db60a21b9c708784ec225f82b6ebd8aea05347497e2bf17935N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2208
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2412
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe" "RegAsm.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2712
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\SysWOW64\schtasks.exe" /create /tn igfxHK /tr "C:\Users\Admin\AppData\Roaming\chkdsk\data.exe" /sc minute /mo 1 /F
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3052

C:\Windows\system32\taskeng.exe
taskeng.exe {0AE8116C-3E1C-494E-A25A-8B2F4C39558E} S-1-5-21-4177215427-74451935-3209572229-1000:JSMURNPT\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2000
- C:\Users\Admin\AppData\Roaming\chkdsk\data.exe
  C:\Users\Admin\AppData\Roaming\chkdsk\data.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:1748

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

1

T1562.004

Credential Access

Discovery

System Information Discovery

1

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\Roaming\chkdsk\data.exe

Filesize
1.2MB

MD5
060156fee63ef02e1af842ccf53e9cce

SHA1
37f2ee8acf9376ea30da24f32bbb0468b411b72a

SHA256
c274ff496ac98bdbe6b2810ae85326b122bbe1d65f9a08999d9289b5aa507d8c

SHA512
311e0a52806258cca4ece6755c45439726a2678d929cc4f5da916cd12ccd9844a20dc2da91b621937c5ff3fcb900c82b03d56691c8b2052522616d8f3b9cd945

Download Submit
memory/2208-0-0x0000000000340000-0x0000000000341000-memory.dmp

Filesize
4KB

Download
memory/2412-1-0x0000000000090000-0x000000000009C000-memory.dmp

Filesize
48KB

Download
memory/2412-7-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2412-3-0x0000000000090000-0x000000000009C000-memory.dmp

Filesize
48KB

Download
memory/2412-10-0x0000000000090000-0x000000000009C000-memory.dmp

Filesize
48KB

Download
memory/2412-9-0x0000000000090000-0x000000000009C000-memory.dmp

Filesize
48KB

Download
memory/2412-11-0x0000000073F02000-0x0000000073F04000-memory.dmp

Filesize
8KB

Download
memory/2412-12-0x0000000073F02000-0x0000000073F04000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads