remcos | 47628bf5d571084ccd174e03c02efb2e2211b69d88a12445829344b1cdeea945

Analysis

max time kernel
148s
max time network
143s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
30/09/2026, 12:10

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General

Target
FEDEX-MR-26-093026-TS-DOC_M10-M26_GENERAL.js
Size 434KB
Sample260930-pb5j5stycs
SHA256 47628bf5d571084ccd174e03c02efb2e2211b69d88a12445829344b1cdeea945
MD5 d7430596c7d09fd39ab638f7d2cc40a0
SHA1 1e21225571a98edbfd9c41c530f13855fe1b20dd
SHA512 7da932abcf2995e101ff5fe408831c1b56182595e20802a2e5fa828676a39a26aface47800066678e874090a2f62ac2522391bf6fda2984ddb20e33bf93049f5
SSDEEP 12288:8We+w9v/m7JkOMNyo2xyybdkoehqksNKH:/eB3m7JkOOFEnZteEksgH
TLSH
T1A0945B20ED34067D0F471BA9FCE50B62CABD8619463650F5F6DA030E61069FCE3BE669
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

channels collection defense_evasion discovery execution remcos persistence privilege_escalation rat

Malware Config

Extracted

Family

remcos

Version

7.3.1 Pro

Botnet

CHANNELS

channel-facts.duckdns.org:56151
channel-factsbk.duckdns.org:60196

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
Remcos
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-KXK87P
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
take_screenshot_option
false
take_screenshot_time
5

Signatures

Family: Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	5672	4164	cmd.exe	89

Badlisted process makes network request 2 IoCs

Network request originating from process or tool commonly abused by malware.

flow	pid	Process
2	3248	wscript.exe
7	4740	powershell.exe

Accesses Microsoft Outlook profiles 1 TTPs 2 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key enumerated	\REGISTRY\USER\S-1-5-21-2304238888-3968896904-642854331-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	backgroundtaskhost.exe
Key opened	\REGISTRY\USER\S-1-5-21-2304238888-3968896904-642854331-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	backgroundtaskhost.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2304238888-3968896904-642854331-1000\Software\Microsoft\Windows\CurrentVersion\Run\Klatteriet = "%Womanizer% -windowstyle 2 (.'gp' 'HKCU:\\Software\\Embruting\\').'Ensignhood' \| %Womanizer% -"	reg.exe

Enumerates connected drives 3 TTPs 3 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

ioc	Process
\??\F:\	wscript.exe
\??\F:\	powershell.exe
\??\F:\	backgroundtaskhost.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\%SystemDrive%\ProgramData\Microsoft\Windows\Caches\cversions.2.db	backgroundtaskhost.exe
File created	C:\Windows\SysWOW64\%SystemDrive%\ProgramData\Microsoft\Windows\Caches\{DDF571F2-BE98-426D-8288-1A9A39C3FDA2}.2.ver0x0000000000000001.db	backgroundtaskhost.exe
File created	C:\Windows\SysWOW64\%SystemDrive%\ProgramData\Microsoft\Windows\Caches\{21123F33-09E6-4229-800E-607C7C27432A}.2.ver0x0000000000000001.db	backgroundtaskhost.exe
File created	C:\Windows\SysWOW64\%SystemDrive%\ProgramData\Microsoft\Windows\Caches\{6AF0698E-D558-4F6E-9B3C-3716689AF493}.2.ver0x0000000000000001.db	backgroundtaskhost.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 TTPs 1 IoCs

defense_evasion

Debugger Evasion

T1622

pid	Process
4604	backgroundtaskhost.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 TTPs 2 IoCs

defense_evasion

Debugger Evasion

T1622

pid	Process
4740	powershell.exe
4604	backgroundtaskhost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\__PSScriptPolicyTest_pkuzyk4f.crk.psm1	powershell.exe
File created	C:\Windows\__PSScriptPolicyTest_s0pxco1j.be0.ps1	powershell.exe

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007

Executes a command shell one-liner 1 TTPs 2 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
5672	cmd.exe
1408	cmd.exe

Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	wscript.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	wscript.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	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	backgroundtaskhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4740	powershell.exe
4740	powershell.exe
4740	powershell.exe
4740	powershell.exe
4740	powershell.exe
4740	powershell.exe

Suspicious behavior: MapViewOfSection 1 TTPs 1 IoCs

defense_evasion privilege_escalation

Process Injection

T1055

pid	Process
4740	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4740	powershell.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 5672 wrote to memory of 3500	5672	cmd.exe	92
PID 5672 wrote to memory of 4740	5672	cmd.exe	93
PID 4740 wrote to memory of 568	4740	powershell.exe	94
PID 4740 wrote to memory of 4604	4740	powershell.exe	95
PID 4740 wrote to memory of 4604	4740	powershell.exe	95
PID 4604 wrote to memory of 1204	4604	backgroundtaskhost.exe	96
PID 4604 wrote to memory of 1408	4604	backgroundtaskhost.exe	97
PID 1408 wrote to memory of 360	1408	cmd.exe	99

outlook_office_path 1 IoCs

description	ioc	Process
Key enumerated	\REGISTRY\USER\S-1-5-21-2304238888-3968896904-642854331-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	backgroundtaskhost.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\FEDEX-MR-26-093026-TS-DOC_M10-M26_GENERAL.js
1⤵
- Badlisted process makes network request
- Enumerates connected drives
- Reads the TCP/IP host and domain name from the registry
PID:3248

C:\Windows\system32\cmd.exe
cmd.exe /c echo ^%Frysediske^% | %Tiltnktes% -
1⤵
- Process spawned unexpected child process
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
PID:5672
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /S /D /c" echo %Frysediske% "
  2⤵
  PID:3500
- \??\c:\windows\syswow64\WindowsPowerShell\v1.0\powershell.exe
  "c:\windows\syswow64\WindowsPowerShell\v1.0\powershell.exe" -
  2⤵
  - Badlisted process makes network request
  - Enumerates connected drives
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4740
- - C:\Windows\SysWOW64\backgroundtaskhost.exe
    "C:\Windows\SysWOW64\backgroundtaskhost.exe"
    3⤵
    PID:568
- - C:\Windows\SysWOW64\backgroundtaskhost.exe
    "C:\Windows\SysWOW64\backgroundtaskhost.exe"
    3⤵
    - Accesses Microsoft Outlook profiles
    - Enumerates connected drives
    - Drops file in System32 directory
    - Suspicious use of NtCreateThreadExHideFromDebugger
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    - outlook_office_path
    PID:4604
  - - C:\Windows\SysWOW64\backgroundtaskhost.exe
      "C:\Windows\SysWOW64\backgroundtaskhost.exe"
      4⤵
      PID:1204
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "Klatteriet" /t REG_EXPAND_SZ /d "%Womanizer% -windowstyle 2 (.'gp' 'HKCU:\Software\Embruting\').'Ensignhood' | %Womanizer% -"
      4⤵
      Executes a command shell one-liner
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:1408
    - - C:\Windows\SysWOW64\reg.exe
        
        REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "Klatteriet" /t REG_EXPAND_SZ /d "%Womanizer% -windowstyle 2 (.'gp' 'HKCU:\Software\Embruting\').'Ensignhood' | %Womanizer% -"
        5⤵
        Adds Run key to start application
        System Location Discovery: System Language Discovery
        
        PID:360

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

JavaScript

T1059.007

Windows Command Shell

T1059.003

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Process Injection

T1055

Defense Evasion

Debugger Evasion

T1622

Modify Registry

T1112

Process Injection

T1055

Credential Access

Discovery

Debugger Evasion

T1622

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

__PSScriptPolicyTest_s0pxco1j.be0.ps1

Path C:\Windows\__PSScriptPolicyTest_s0pxco1j.be0.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

Submit Download

memory/4604-54-0x0000000000E00000-0x00000000020E6000-memory.dmp

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memory/4604-61-0x0000000000E00000-0x00000000020E6000-memory.dmp

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memory/4604-60-0x0000000000E00000-0x00000000020E6000-memory.dmp

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memory/4604-59-0x0000000000E00000-0x00000000020E6000-memory.dmp

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memory/4604-55-0x0000000000E00000-0x00000000020E6000-memory.dmp

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memory/4604-41-0x0000000000E00000-0x00000000020E6000-memory.dmp

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memory/4604-53-0x0000000000E00000-0x00000000020E6000-memory.dmp

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memory/4604-62-0x0000000000E00000-0x00000000020E6000-memory.dmp

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memory/4604-52-0x0000000000E00000-0x00000000020E6000-memory.dmp

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memory/4604-51-0x0000000000E00000-0x00000000020E6000-memory.dmp

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memory/4604-50-0x000000001ECD0000-0x000000001EDC7000-memory.dmp

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memory/4604-49-0x000000001ECD0000-0x000000001EDC7000-memory.dmp

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memory/4604-46-0x000000001ECD0000-0x000000001EDC7000-memory.dmp

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memory/4740-19-0x0000000006100000-0x000000000611E000-memory.dmp

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memory/4740-37-0x0000000074E60000-0x000000007561C000-memory.dmp

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memory/4740-25-0x0000000008590000-0x0000000008B4A000-memory.dmp

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memory/4740-26-0x0000000074E60000-0x000000007561C000-memory.dmp

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memory/4740-27-0x0000000074E72000-0x0000000074E73000-memory.dmp

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memory/4740-28-0x0000000074E60000-0x000000007561C000-memory.dmp

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memory/4740-29-0x0000000074E60000-0x000000007561C000-memory.dmp

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memory/4740-30-0x0000000074E60000-0x000000007561C000-memory.dmp

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memory/4740-31-0x0000000074E60000-0x000000007561C000-memory.dmp

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memory/4740-33-0x0000000074E60000-0x000000007561C000-memory.dmp

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memory/4740-34-0x0000000074E60000-0x000000007561C000-memory.dmp

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memory/4740-35-0x0000000008B50000-0x00000000098FB000-memory.dmp

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memory/4740-36-0x0000000074E60000-0x000000007561C000-memory.dmp

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memory/4740-24-0x0000000007330000-0x0000000007352000-memory.dmp

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memory/4740-23-0x0000000007390000-0x0000000007426000-memory.dmp

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memory/4740-22-0x00000000066C0000-0x00000000066DA000-memory.dmp

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memory/4740-21-0x0000000007950000-0x0000000007FCC000-memory.dmp

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memory/4740-20-0x0000000006160000-0x00000000061AC000-memory.dmp

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memory/4740-4-0x0000000074E72000-0x0000000074E73000-memory.dmp

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memory/4740-17-0x0000000005C00000-0x0000000005F5B000-memory.dmp

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memory/4740-9-0x0000000005A20000-0x0000000005A86000-memory.dmp

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memory/4740-11-0x0000000074E60000-0x000000007561C000-memory.dmp

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memory/4740-8-0x0000000005320000-0x0000000005342000-memory.dmp

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memory/4740-10-0x0000000005A90000-0x0000000005AF6000-memory.dmp

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memory/4740-6-0x0000000074E60000-0x000000007561C000-memory.dmp

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memory/4740-7-0x0000000005360000-0x00000000059AA000-memory.dmp

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memory/4740-5-0x00000000028C0000-0x00000000028F6000-memory.dmp

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