njrat | 6caf2e1e6496de3efe605e8789bd5fd2b00649974292b4b2e850d4524c103eec

General

Target

nixware crack.dll
Size

131KB
MD5

9e2a655b74dd710c229750deadccd76f
SHA1

171596d21b5ba58aed4ece7f23bd5ee0b50a853d
SHA256

6caf2e1e6496de3efe605e8789bd5fd2b00649974292b4b2e850d4524c103eec
SHA512

65a34dd2ca72e161189bca733eb24a7c0b0ee22c3b39b65c78db995c5cc4dea1cd693630c9c984965be86d81ff4968291f5ebd76e180df421d074c6267b70169
SSDEEP

3072:G24KYnxDl1SlpejXNEFJUFew/UWjKoamC3uDz6iksXQl4BounDFtnUWO2fiL:T4NnRl4leG7iUVmC3w6uBDn4k6L

Score

10^/10

njrat victim evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

<- NjRAT 0.7d Horror Edition ->

Botnet

Victim

C2

mYs7erY2-20549.portmap.host:20549

Mutex

c7ecaeb62dbc9789b90e03340b3fcb9e

Attributes

reg_key
c7ecaeb62dbc9789b90e03340b3fcb9e
splitter
Y262SUCZ4UJJ

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Stops running service(s) 3 TTPs
evasion

Modify Existing Service
T1031

Impair Defenses
T1562

Service Stop
T1489

Drops startup file 2 IoCs

Processes:

dllhost.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\c7ecaeb62dbc9789b90e03340b3fcb9e.exe	dllhost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\c7ecaeb62dbc9789b90e03340b3fcb9e.exe	dllhost.exe

Executes dropped EXE 2 IoCs

Processes:

~ZY1E2C.tmpdllhost.exe

pid process

916 ~ZY1E2C.tmp
980 dllhost.exe
Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

1704 rundll32.exe

pid	process
1704	rundll32.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

dllhost.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000\Software\Microsoft\Windows\CurrentVersion\Run\c7ecaeb62dbc9789b90e03340b3fcb9e = "\"C:\\Users\\Admin\\AppData\\Roaming\\dllhost.exe\" .."	dllhost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c7ecaeb62dbc9789b90e03340b3fcb9e = "\"C:\\Users\\Admin\\AppData\\Roaming\\dllhost.exe\" .."	dllhost.exe

Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

1252 sc.exe
688 sc.exe
1948 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1792 schtasks.exe
Modifies registry class 1 IoCs

Processes:

rundll32.exe

description ioc process

Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{FE5451A1-ABFE-BF4F-EAFE-0000D47C9A46} rundll32.exe

pid	process
1252	sc.exe
688	sc.exe
1948	sc.exe

pid	process
1792	schtasks.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{FE5451A1-ABFE-BF4F-EAFE-0000D47C9A46}	rundll32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

~ZY1E2C.tmp

pid	process
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp
916	~ZY1E2C.tmp

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

~ZY1E2C.tmpdllhost.exepowershell.exe

description pid process

Token: SeDebugPrivilege 916 ~ZY1E2C.tmp
Token: SeDebugPrivilege 980 dllhost.exe
Token: SeDebugPrivilege 868 powershell.exe

description	pid	process
Token: SeDebugPrivilege	916	~ZY1E2C.tmp
Token: SeDebugPrivilege	980	dllhost.exe
Token: SeDebugPrivilege	868	powershell.exe

Suspicious use of WriteProcessMemory 47 IoCs

Processes:

rundll32.exerundll32.exe~ZY1E2C.tmpdllhost.execmd.execmd.execmd.execmd.exe

description	pid	process	target process
PID 1448 wrote to memory of 1704	1448	rundll32.exe	rundll32.exe
PID 1448 wrote to memory of 1704	1448	rundll32.exe	rundll32.exe
PID 1448 wrote to memory of 1704	1448	rundll32.exe	rundll32.exe
PID 1448 wrote to memory of 1704	1448	rundll32.exe	rundll32.exe
PID 1448 wrote to memory of 1704	1448	rundll32.exe	rundll32.exe
PID 1448 wrote to memory of 1704	1448	rundll32.exe	rundll32.exe
PID 1448 wrote to memory of 1704	1448	rundll32.exe	rundll32.exe
PID 1704 wrote to memory of 916	1704	rundll32.exe	~ZY1E2C.tmp
PID 1704 wrote to memory of 916	1704	rundll32.exe	~ZY1E2C.tmp
PID 1704 wrote to memory of 916	1704	rundll32.exe	~ZY1E2C.tmp
PID 1704 wrote to memory of 916	1704	rundll32.exe	~ZY1E2C.tmp
PID 916 wrote to memory of 980	916	~ZY1E2C.tmp	dllhost.exe
PID 916 wrote to memory of 980	916	~ZY1E2C.tmp	dllhost.exe
PID 916 wrote to memory of 980	916	~ZY1E2C.tmp	dllhost.exe
PID 980 wrote to memory of 1928	980	dllhost.exe	attrib.exe
PID 980 wrote to memory of 1928	980	dllhost.exe	attrib.exe
PID 980 wrote to memory of 1928	980	dllhost.exe	attrib.exe
PID 980 wrote to memory of 828	980	dllhost.exe	cmd.exe
PID 980 wrote to memory of 828	980	dllhost.exe	cmd.exe
PID 980 wrote to memory of 828	980	dllhost.exe	cmd.exe
PID 828 wrote to memory of 868	828	cmd.exe	powershell.exe
PID 828 wrote to memory of 868	828	cmd.exe	powershell.exe
PID 828 wrote to memory of 868	828	cmd.exe	powershell.exe
PID 980 wrote to memory of 1984	980	dllhost.exe	cmd.exe
PID 980 wrote to memory of 1984	980	dllhost.exe	cmd.exe
PID 980 wrote to memory of 1984	980	dllhost.exe	cmd.exe
PID 1984 wrote to memory of 1948	1984	cmd.exe	sc.exe
PID 1984 wrote to memory of 1948	1984	cmd.exe	sc.exe
PID 1984 wrote to memory of 1948	1984	cmd.exe	sc.exe
PID 980 wrote to memory of 1968	980	dllhost.exe	cmd.exe
PID 980 wrote to memory of 1968	980	dllhost.exe	cmd.exe
PID 980 wrote to memory of 1968	980	dllhost.exe	cmd.exe
PID 1968 wrote to memory of 1252	1968	cmd.exe	sc.exe
PID 1968 wrote to memory of 1252	1968	cmd.exe	sc.exe
PID 1968 wrote to memory of 1252	1968	cmd.exe	sc.exe
PID 980 wrote to memory of 1444	980	dllhost.exe	cmd.exe
PID 980 wrote to memory of 1444	980	dllhost.exe	cmd.exe
PID 980 wrote to memory of 1444	980	dllhost.exe	cmd.exe
PID 1444 wrote to memory of 688	1444	cmd.exe	sc.exe
PID 1444 wrote to memory of 688	1444	cmd.exe	sc.exe
PID 1444 wrote to memory of 688	1444	cmd.exe	sc.exe
PID 980 wrote to memory of 1616	980	dllhost.exe	schtasks.exe
PID 980 wrote to memory of 1616	980	dllhost.exe	schtasks.exe
PID 980 wrote to memory of 1616	980	dllhost.exe	schtasks.exe
PID 980 wrote to memory of 1792	980	dllhost.exe	schtasks.exe
PID 980 wrote to memory of 1792	980	dllhost.exe	schtasks.exe
PID 980 wrote to memory of 1792	980	dllhost.exe	schtasks.exe

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012
Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

1928 attrib.exe

pid	process
1928	attrib.exe

C:\Windows\system32\rundll32.exe
rundll32.exe "C:\Users\Admin\AppData\Local\Temp\nixware crack.dll",#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1448

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe "C:\Users\Admin\AppData\Local\Temp\nixware crack.dll",#1
2⤵
- Loads dropped DLL
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1704

C:\Users\Admin\AppData\Local\Temp\~ZY1E2C.tmp
C:\Users\Admin\AppData\Local\Temp\~ZY1E2C.tmp
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:916

C:\Users\Admin\AppData\Roaming\dllhost.exe
"C:\Users\Admin\AppData\Roaming\dllhost.exe"
4⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:980

C:\Windows\system32\attrib.exe
attrib +h "C:\Users\Admin\AppData\Roaming\dllhost.exe"
5⤵
- Views/modifies file attributes
PID:1928

C:\Windows\system32\cmd.exe
cmd /c powershell Set-MpPreference -DisableRealtimeMonitoring $true
5⤵
- Suspicious use of WriteProcessMemory
PID:828

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell Set-MpPreference -DisableRealtimeMonitoring $true
6⤵
- Suspicious use of AdjustPrivilegeToken
PID:868

C:\Windows\system32\cmd.exe
cmd /c sc query windefend
5⤵
- Suspicious use of WriteProcessMemory
PID:1984

C:\Windows\system32\sc.exe
sc query windefend
6⤵
- Launches sc.exe
PID:1948

C:\Windows\system32\cmd.exe
cmd /c sc stop windefend
5⤵
- Suspicious use of WriteProcessMemory
PID:1968

C:\Windows\system32\sc.exe
sc stop windefend
6⤵
- Launches sc.exe
PID:1252

C:\Windows\system32\cmd.exe
cmd /c sc delete windefend
5⤵
- Suspicious use of WriteProcessMemory
PID:1444

C:\Windows\system32\sc.exe
sc delete windefend
6⤵
- Launches sc.exe
PID:688

C:\Windows\system32\schtasks.exe
schtasks /delete /tn CleanSweepCheck /f
5⤵
PID:1616

C:\Windows\system32\schtasks.exe
schtasks /create /sc minute /mo 1 /tn CleanSweepCheck /tr C:\Users\Admin\AppData\Roaming\dllhost.exe
5⤵
- Creates scheduled task(s)
PID:1792

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Hidden Files and Directories

1

T1158

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Impair Defenses

1

T1562

Modify Registry

1

T1112

Hidden Files and Directories

1

T1158

Credential Access

Discovery

System Information Discovery

1

T1082

Query Registry

1

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Service Stop

1

T1489

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Downloads

C:\Users\Admin\AppData\Local\Temp\~ZY1E2C.tmp
Filesize
32KB

MD5
97ad4704dac3a3e05dab32f5952e5122

SHA1
fe121757efc0e1898ee2b07d243ba8b17b446989

SHA256
86a9b3365ad9eb2e912253ffea5b42fe427c9a9bed310812ae66a07c233eef9d

SHA512
bf11f0341eb6bf7c45b4e00db44c3d124bfaba86ece487d341a805b3c24f841b8334424c3c242fd1d6763aa55572f42290b341b1bfd03204d3a4ec8bb6092b8a

Download Submit
C:\Users\Admin\AppData\Local\Temp\~ZY1E2C.tmp
Filesize
32KB

MD5
97ad4704dac3a3e05dab32f5952e5122

SHA1
fe121757efc0e1898ee2b07d243ba8b17b446989

SHA256
86a9b3365ad9eb2e912253ffea5b42fe427c9a9bed310812ae66a07c233eef9d

SHA512
bf11f0341eb6bf7c45b4e00db44c3d124bfaba86ece487d341a805b3c24f841b8334424c3c242fd1d6763aa55572f42290b341b1bfd03204d3a4ec8bb6092b8a

Download Submit
C:\Users\Admin\AppData\Roaming\dllhost.exe
Filesize
32KB

MD5
97ad4704dac3a3e05dab32f5952e5122

SHA1
fe121757efc0e1898ee2b07d243ba8b17b446989

SHA256
86a9b3365ad9eb2e912253ffea5b42fe427c9a9bed310812ae66a07c233eef9d

SHA512
bf11f0341eb6bf7c45b4e00db44c3d124bfaba86ece487d341a805b3c24f841b8334424c3c242fd1d6763aa55572f42290b341b1bfd03204d3a4ec8bb6092b8a

Download Submit
C:\Users\Admin\AppData\Roaming\dllhost.exe
Filesize
32KB

MD5
97ad4704dac3a3e05dab32f5952e5122

SHA1
fe121757efc0e1898ee2b07d243ba8b17b446989

SHA256
86a9b3365ad9eb2e912253ffea5b42fe427c9a9bed310812ae66a07c233eef9d

SHA512
bf11f0341eb6bf7c45b4e00db44c3d124bfaba86ece487d341a805b3c24f841b8334424c3c242fd1d6763aa55572f42290b341b1bfd03204d3a4ec8bb6092b8a

Download Submit
C:\Users\Admin\AppData\Roaming\dllhost.exe
Filesize
32KB

MD5
97ad4704dac3a3e05dab32f5952e5122

SHA1
fe121757efc0e1898ee2b07d243ba8b17b446989

SHA256
86a9b3365ad9eb2e912253ffea5b42fe427c9a9bed310812ae66a07c233eef9d

SHA512
bf11f0341eb6bf7c45b4e00db44c3d124bfaba86ece487d341a805b3c24f841b8334424c3c242fd1d6763aa55572f42290b341b1bfd03204d3a4ec8bb6092b8a

Download Submit
\Users\Admin\AppData\Local\Temp\~ZY1E2C.tmp
Filesize
32KB

MD5
97ad4704dac3a3e05dab32f5952e5122

SHA1
fe121757efc0e1898ee2b07d243ba8b17b446989

SHA256
86a9b3365ad9eb2e912253ffea5b42fe427c9a9bed310812ae66a07c233eef9d

SHA512
bf11f0341eb6bf7c45b4e00db44c3d124bfaba86ece487d341a805b3c24f841b8334424c3c242fd1d6763aa55572f42290b341b1bfd03204d3a4ec8bb6092b8a

Download Submit
memory/868-76-0x000000001B210000-0x000000001B4F2000-memory.dmp

Filesize
2.9MB

Download
memory/868-77-0x00000000026A0000-0x00000000026A8000-memory.dmp

Filesize
32KB

Download
memory/868-79-0x00000000026F0000-0x0000000002770000-memory.dmp

Filesize
512KB

Download
memory/868-78-0x00000000026F0000-0x0000000002770000-memory.dmp

Filesize
512KB

Download
memory/868-80-0x00000000026F0000-0x0000000002770000-memory.dmp

Filesize
512KB

Download
memory/868-81-0x00000000026FB000-0x0000000002732000-memory.dmp

Filesize
220KB

Download
memory/916-62-0x0000000001FD0000-0x0000000002050000-memory.dmp

Filesize
512KB

Download
memory/916-60-0x0000000000190000-0x00000000001A4000-memory.dmp

Filesize
80KB

Download
memory/916-59-0x0000000000130000-0x0000000000138000-memory.dmp

Filesize
32KB

Download
memory/980-68-0x00000000002E0000-0x00000000002E8000-memory.dmp

Filesize
32KB

Download
memory/980-69-0x0000000001F00000-0x0000000001F80000-memory.dmp

Filesize
512KB

Download
memory/1704-61-0x0000000011000000-0x0000000011083000-memory.dmp

Filesize
524KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads