njrat | 898ac001d0f6c52c1001c640d9860287fdf30a648d580e9f5dd15e2ef84ab18e

Analysis

max time kernel
36s
max time network
40s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
28-09-2024 01:00

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General

Target

Remcos 2022.exe
Size

17.7MB
MD5

efc159c7cf75545997f8c6af52d3e802
SHA1

b85bd368c91a13db1c5de2326deb25ad666c24c1
SHA256

898ac001d0f6c52c1001c640d9860287fdf30a648d580e9f5dd15e2ef84ab18e
SHA512

d06a432233dceb731defd53238971699fef201d0f9144ee50e5dd7d6620dfdd6c298d52618bf2c9feb0519574f4565fb0177b00fd8292768fbd8b85dd11e650d
SSDEEP

393216:GYuGvp8EHb+in8f4Zg41+Q4AXf5ZZcyfHDMxVpSc+q+eOFxdx:3mqSi8fN4sAXfrZcyfo7p0eYHx

Score

10^/10

njrat hacked discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

dllsys.duckdns.org:3202

Mutex

3b570ffeeb3d34249b9a5ce0ee58a328

Attributes

reg_key
3b570ffeeb3d34249b9a5ce0ee58a328
splitter
svchost

Signatures

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
2264	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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	Remcos 2022.exe

Executes dropped EXE 2 IoCs

pid	Process
696	Remcos Professional Cracked By Alcatraz3222.exe
1052	taskhost.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
696	Remcos Professional Cracked By Alcatraz3222.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4324 set thread context of 1052	4324	Remcos 2022.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 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 8 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Remcos 2022.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Remcos Professional Cracked By Alcatraz3222.exe

Checks SCSI registry key(s) 3 TTPs 3 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000	taskmgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A	taskmgr.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\FriendlyName	taskmgr.exe

Suspicious behavior: EnumeratesProcesses 51 IoCs

pid	Process
4324	Remcos 2022.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
696	Remcos Professional Cracked By Alcatraz3222.exe
696	Remcos Professional Cracked By Alcatraz3222.exe
696	Remcos Professional Cracked By Alcatraz3222.exe
696	Remcos Professional Cracked By Alcatraz3222.exe
3996	taskmgr.exe
3996	taskmgr.exe
4324	Remcos 2022.exe
3996	taskmgr.exe
4324	Remcos 2022.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
1052	taskhost.exe
1052	taskhost.exe
1052	taskhost.exe
1052	taskhost.exe
1052	taskhost.exe
1052	taskhost.exe
1052	taskhost.exe
3996	taskmgr.exe
3996	taskmgr.exe
4324	Remcos 2022.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
696	Remcos Professional Cracked By Alcatraz3222.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	4324	Remcos 2022.exe
Token: SeDebugPrivilege	3996	taskmgr.exe
Token: SeSystemProfilePrivilege	3996	taskmgr.exe
Token: SeCreateGlobalPrivilege	3996	taskmgr.exe
Token: SeDebugPrivilege	1052	taskhost.exe
Token: 33	1052	taskhost.exe
Token: SeIncBasePriorityPrivilege	1052	taskhost.exe
Token: 33	1052	taskhost.exe
Token: SeIncBasePriorityPrivilege	1052	taskhost.exe

Suspicious use of FindShellTrayWindow 46 IoCs

pid	Process
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
696	Remcos Professional Cracked By Alcatraz3222.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe

Suspicious use of SendNotifyMessage 46 IoCs

pid	Process
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
696	Remcos Professional Cracked By Alcatraz3222.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe
3996	taskmgr.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
696	Remcos Professional Cracked By Alcatraz3222.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4324 wrote to memory of 696	4324	Remcos 2022.exe	82
PID 4324 wrote to memory of 696	4324	Remcos 2022.exe	82
PID 4324 wrote to memory of 696	4324	Remcos 2022.exe	82
PID 4324 wrote to memory of 5092	4324	Remcos 2022.exe	84
PID 4324 wrote to memory of 5092	4324	Remcos 2022.exe	84
PID 4324 wrote to memory of 5092	4324	Remcos 2022.exe	84
PID 4324 wrote to memory of 4452	4324	Remcos 2022.exe	86
PID 4324 wrote to memory of 4452	4324	Remcos 2022.exe	86
PID 4324 wrote to memory of 4452	4324	Remcos 2022.exe	86
PID 4452 wrote to memory of 4776	4452	cmd.exe	88
PID 4452 wrote to memory of 4776	4452	cmd.exe	88
PID 4452 wrote to memory of 4776	4452	cmd.exe	88
PID 4324 wrote to memory of 1908	4324	Remcos 2022.exe	89
PID 4324 wrote to memory of 1908	4324	Remcos 2022.exe	89
PID 4324 wrote to memory of 1908	4324	Remcos 2022.exe	89
PID 4324 wrote to memory of 1052	4324	Remcos 2022.exe	93
PID 4324 wrote to memory of 1052	4324	Remcos 2022.exe	93
PID 4324 wrote to memory of 1052	4324	Remcos 2022.exe	93
PID 4324 wrote to memory of 1052	4324	Remcos 2022.exe	93
PID 4324 wrote to memory of 1052	4324	Remcos 2022.exe	93
PID 4324 wrote to memory of 1052	4324	Remcos 2022.exe	93
PID 4324 wrote to memory of 1052	4324	Remcos 2022.exe	93
PID 4324 wrote to memory of 1052	4324	Remcos 2022.exe	93
PID 1052 wrote to memory of 2264	1052	taskhost.exe	98
PID 1052 wrote to memory of 2264	1052	taskhost.exe	98
PID 1052 wrote to memory of 2264	1052	taskhost.exe	98

C:\Users\Admin\AppData\Local\Temp\Remcos 2022.exe
"C:\Users\Admin\AppData\Local\Temp\Remcos 2022.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4324
- C:\Users\Admin\AppData\Local\Temp\Remcos Professional Cracked By Alcatraz3222.exe
  "C:\Users\Admin\AppData\Local\Temp\Remcos Professional Cracked By Alcatraz3222.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  PID:696
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c copy "C:/Users/Admin/AppData/Local/Temp/Remcos 2022.exe" "%temp%\Profile Remcos\Update_Lock_Remcos.exe" /Y
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5092
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows" /v Load /t REG_SZ /d "%temp%\Profile Remcos\Update_Lock_Remcos.exe.lnk" /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4452
- - C:\Windows\SysWOW64\reg.exe
    reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows" /v Load /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\Profile Remcos\Update_Lock_Remcos.exe.lnk" /f
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4776
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c echo [zoneTransfer]ZoneID = 2 > %temp%\Profile Remcos\Update_Lock_Remcos.exe:Zone.Identifier
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1908
- C:\Users\Admin\AppData\Local\Temp\taskhost.exe
  "C:\Users\Admin\AppData\Local\Temp\taskhost.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1052
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\taskhost.exe" "taskhost.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2264

C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /4
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:3996

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Profile Remcos\Update_Lock_Remcos.exe

Filesize
17.7MB

MD5
efc159c7cf75545997f8c6af52d3e802

SHA1
b85bd368c91a13db1c5de2326deb25ad666c24c1

SHA256
898ac001d0f6c52c1001c640d9860287fdf30a648d580e9f5dd15e2ef84ab18e

SHA512
d06a432233dceb731defd53238971699fef201d0f9144ee50e5dd7d6620dfdd6c298d52618bf2c9feb0519574f4565fb0177b00fd8292768fbd8b85dd11e650d

Download Submit
C:\Users\Admin\AppData\Local\Temp\Remcos Professional Cracked By Alcatraz3222.exe

Filesize
17.4MB

MD5
c3c21fa4c2186deb641455482ab0d3aa

SHA1
2f4b49e8383e073ccb965943ce970de403412567

SHA256
4ea203509d0fdff3e31f976413c546ca3d36133bc708e9a1301860961cc3a8d9

SHA512
31db2963f1bd49f7b4a6ee38e54940d20120d6c05ef7bf34ec97eb93051bee6d5428e9e1271e4ae8f5544b824188ac7278315e2e2c27be302a312eebbf8c3fb7

Download Submit
C:\Users\Admin\AppData\Local\Temp\Remcos_Settings.ini

Filesize
32B

MD5
902927c48d191e30067d84a53158e2ba

SHA1
95dd6d3508790b98d1a576f0b2057bdcc2099247

SHA256
b408602c7d2107d819b18d47cbc196a307ab6435bbc819173f300e76573e616c

SHA512
328af5e697278b2c8150534162c330b11e9cc3024ee676cf9321a248701d99322cc1341694904d0ca5c6898e74e39419cd36765499d6992934075b08276c8eeb

Download Submit
C:\Users\Admin\AppData\Local\Temp\taskhost.exe

Filesize
256KB

MD5
8fdf47e0ff70c40ed3a17014aeea4232

SHA1
e6256a0159688f0560b015da4d967f41cbf8c9bd

SHA256
ed9884bac608c06b7057037cc91d90e4ae5f74dd2dbce2af476699c6d4492d82

SHA512
bd69d092ed4f9c5e1f24eaf5ec79fb316469d53849dc798fae0fcba5e90869b77ee924c23cc6f692198ff25827ab60ad47bb46cadd6e0aadde7731cbafb013be

Download Submit
memory/696-33-0x0000000002B90000-0x0000000002B91000-memory.dmp

Filesize
4KB

Download
memory/696-30-0x0000000002B50000-0x0000000002B51000-memory.dmp

Filesize
4KB

Download
memory/696-56-0x0000000000762000-0x000000000181E000-memory.dmp

Filesize
16.7MB

Download
memory/696-34-0x00000000030C0000-0x00000000030C1000-memory.dmp

Filesize
4KB

Download
memory/696-35-0x00000000030D0000-0x00000000030D1000-memory.dmp

Filesize
4KB

Download
memory/696-58-0x0000000000400000-0x0000000002991000-memory.dmp

Filesize
37.6MB

Download
memory/696-29-0x0000000000762000-0x000000000181E000-memory.dmp

Filesize
16.7MB

Download
memory/696-36-0x00000000030E0000-0x00000000030E1000-memory.dmp

Filesize
4KB

Download
memory/696-40-0x0000000000400000-0x0000000002991000-memory.dmp

Filesize
37.6MB

Download
memory/696-37-0x00000000030F0000-0x00000000030F1000-memory.dmp

Filesize
4KB

Download
memory/696-32-0x0000000002B80000-0x0000000002B81000-memory.dmp

Filesize
4KB

Download
memory/696-31-0x0000000002B70000-0x0000000002B71000-memory.dmp

Filesize
4KB

Download
memory/1052-59-0x0000000005320000-0x000000000532A000-memory.dmp

Filesize
40KB

Download
memory/1052-49-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1052-54-0x0000000005570000-0x0000000005B14000-memory.dmp

Filesize
5.6MB

Download
memory/1052-57-0x0000000005150000-0x00000000051E2000-memory.dmp

Filesize
584KB

Download
memory/3996-22-0x0000025E74750000-0x0000025E74751000-memory.dmp

Filesize
4KB

Download
memory/3996-16-0x0000025E74750000-0x0000025E74751000-memory.dmp

Filesize
4KB

Download
memory/3996-24-0x0000025E74750000-0x0000025E74751000-memory.dmp

Filesize
4KB

Download
memory/3996-25-0x0000025E74750000-0x0000025E74751000-memory.dmp

Filesize
4KB

Download
memory/3996-26-0x0000025E74750000-0x0000025E74751000-memory.dmp

Filesize
4KB

Download
memory/3996-27-0x0000025E74750000-0x0000025E74751000-memory.dmp

Filesize
4KB

Download
memory/3996-28-0x0000025E74750000-0x0000025E74751000-memory.dmp

Filesize
4KB

Download
memory/3996-18-0x0000025E74750000-0x0000025E74751000-memory.dmp

Filesize
4KB

Download
memory/3996-17-0x0000025E74750000-0x0000025E74751000-memory.dmp

Filesize
4KB

Download
memory/3996-23-0x0000025E74750000-0x0000025E74751000-memory.dmp

Filesize
4KB

Download
memory/4324-0-0x0000000074E4E000-0x0000000074E4F000-memory.dmp

Filesize
4KB

Download
memory/4324-55-0x0000000074E40000-0x00000000755F0000-memory.dmp

Filesize
7.7MB

Download
memory/4324-45-0x0000000074E4E000-0x0000000074E4F000-memory.dmp

Filesize
4KB

Download
memory/4324-4-0x000000000DFC0000-0x000000000F142000-memory.dmp

Filesize
17.5MB

Download
memory/4324-3-0x0000000074E40000-0x00000000755F0000-memory.dmp

Filesize
7.7MB

Download
memory/4324-2-0x0000000006920000-0x00000000069BC000-memory.dmp

Filesize
624KB

Download
memory/4324-1-0x0000000000C70000-0x0000000001E1E000-memory.dmp

Filesize
17.7MB

Download
memory/4324-105-0x0000000074E40000-0x00000000755F0000-memory.dmp

Filesize
7.7MB

Download