guloader | 47628bf5d571084ccd174e03c02efb2e2211b69d88a12445829344b1cdeea945

Analysis

max time kernel
23s
max time network
36s
platform
windows10-2004_x64
resource
win10v2004-20260911-en
resource tags

arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
30/09/2026, 14:06

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General

Target
47628bf5d571084ccd174e03c02efb2e2211b69d88a12445829344b1cdeea945.js
Size 434KB
Sample260930-rem6datfld
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 defense_evasion discovery downloader execution guloader remcos privilege_escalation rat

Malware Config

Extracted

Family

remcos

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: Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader guloader
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	2452	4116	cmd.exe	86

Badlisted process makes network request 2 IoCs

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

flow	pid	Process
4	2644	wscript.exe
20	552	powershell.exe

Enumerates connected drives 3 TTPs 2 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

Suspicious use of NtSetInformationThreadHideFromDebugger 1 TTPs 2 IoCs

defense_evasion

Debugger Evasion

T1622

pid	Process
552	powershell.exe
1256	backgroundtaskhost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\__PSScriptPolicyTest_xlekmtgi.bcs.ps1	powershell.exe
File created	C:\Windows\__PSScriptPolicyTest_sjnbeaph.jyh.psm1	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
2452	cmd.exe
1100	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 2 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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	backgroundtaskhost.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
552	powershell.exe
552	powershell.exe
552	powershell.exe
552	powershell.exe
552	powershell.exe
552	powershell.exe

Suspicious behavior: MapViewOfSection 1 TTPs 1 IoCs

defense_evasion privilege_escalation

Process Injection

T1055

pid	Process
552	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	552	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2452 wrote to memory of 1212	2452	cmd.exe	93
PID 2452 wrote to memory of 552	2452	cmd.exe	94
PID 552 wrote to memory of 1592	552	powershell.exe	101
PID 552 wrote to memory of 1256	552	powershell.exe	102
PID 552 wrote to memory of 1256	552	powershell.exe	102
PID 1256 wrote to memory of 2228	1256	backgroundtaskhost.exe	103

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\47628bf5d571084ccd174e03c02efb2e2211b69d88a12445829344b1cdeea945.js
1⤵
- Badlisted process makes network request
- Enumerates connected drives
- Reads the TCP/IP host and domain name from the registry
PID:2644

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:2452
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /S /D /c" echo %Frysediske% "
  2⤵
  PID:1212
- \??\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:552
- - C:\Windows\SysWOW64\backgroundtaskhost.exe
    "C:\Windows\SysWOW64\backgroundtaskhost.exe"
    3⤵
    PID:1592
- - C:\Windows\SysWOW64\backgroundtaskhost.exe
    "C:\Windows\SysWOW64\backgroundtaskhost.exe"
    3⤵
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1256
  - - C:\Windows\SysWOW64\backgroundtaskhost.exe
      "C:\Windows\SysWOW64\backgroundtaskhost.exe"
      4⤵
      PID:2228
  - - 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
      PID:1100
    - - 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⤵
        
        PID:4584

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

Privilege Escalation

Process Injection

T1055

Defense Evasion

Debugger Evasion

T1622

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

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

__PSScriptPolicyTest_xlekmtgi.bcs.ps1

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

Submit Download

memory/552-24-0x0000000008210000-0x00000000087B4000-memory.dmp

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memory/552-30-0x00000000087C0000-0x000000000956B000-memory.dmp

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memory/552-7-0x0000000004D90000-0x0000000004DB2000-memory.dmp

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memory/552-8-0x00000000055D0000-0x0000000005636000-memory.dmp

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memory/552-9-0x00000000056B0000-0x0000000005716000-memory.dmp

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memory/552-5-0x00000000023B0000-0x00000000023E6000-memory.dmp

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memory/552-17-0x0000000005760000-0x0000000005AB4000-memory.dmp

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memory/552-18-0x0000000005D50000-0x0000000005D6E000-memory.dmp

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memory/552-19-0x0000000005DE0000-0x0000000005E2C000-memory.dmp

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memory/552-20-0x00000000075E0000-0x0000000007C5A000-memory.dmp

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memory/552-21-0x00000000062C0000-0x00000000062DA000-memory.dmp

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memory/552-22-0x0000000007000000-0x0000000007096000-memory.dmp

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memory/552-23-0x0000000006F90000-0x0000000006FB2000-memory.dmp

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memory/552-4-0x00000000048F0000-0x0000000004900000-memory.dmp

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memory/552-6-0x0000000004F30000-0x0000000005558000-memory.dmp

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memory/552-27-0x00000000048F0000-0x0000000004900000-memory.dmp

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memory/552-25-0x00000000048F0000-0x0000000004900000-memory.dmp

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memory/552-28-0x00000000048F0000-0x0000000004900000-memory.dmp

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memory/552-29-0x0000000007D30000-0x0000000007D33000-memory.dmp

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memory/552-26-0x00000000048F0000-0x0000000004900000-memory.dmp

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memory/552-31-0x00000000048F0000-0x0000000004900000-memory.dmp

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memory/552-32-0x00000000087C0000-0x000000000956B000-memory.dmp

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memory/552-34-0x0000000007D30000-0x0000000007D33000-memory.dmp

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memory/552-35-0x00000000087C0000-0x000000000956B000-memory.dmp

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memory/1256-39-0x0000000001200000-0x0000000002454000-memory.dmp

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memory/1256-44-0x000000001EB50000-0x000000001EC47000-memory.dmp

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memory/1256-48-0x000000001EB50000-0x000000001EC47000-memory.dmp

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memory/1256-47-0x000000001EB50000-0x000000001EC47000-memory.dmp

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memory/1256-55-0x0000000001200000-0x0000000002454000-memory.dmp

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