guloader | 47237f24eb0c31a53ad11ffbe07612414ee8eff0b1f7d0bfbf777ba52b879c71

Analysis

max time kernel
149s
max time network
126s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
27/10/2026, 13:47

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General

Target
herman00102720262710.js
Size 85KB
Sample261027-q3rm2a118j
SHA256 47237f24eb0c31a53ad11ffbe07612414ee8eff0b1f7d0bfbf777ba52b879c71
MD5 427d65ddb0870c8a703aaa05eb2a29c3
SHA1 65fd168a2a336157f34fa3f76b0a071461537841
SHA512 207e1c7b12314a363c34cdca7ff56a4af9d0271b911cbedb454ff1be823a3fe260341c0388425080d3cf5fc1701160488513454453ed71498844fcefa91e5f96
SSDEEP 1536:SrZOfm/5tTOF4jVU+k0Ve8In3m8EANJq9oL2mdedIqUdKbjl8jny:hmxtSKjVUn8IvJS1QedIq/b8y
TLSH
T1628328A0CA0185778F87AB9CACA54660C6ACC325C52345F0F9E8C70E9509DECF77D66B
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

defense_evasion discovery downloader execution guloader privilege_escalation

Malware Config

Signatures

Family: Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader guloader

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	5716	4608	cmd.exe	89

Badlisted process makes network request 1 IoCs

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

flow	pid	Process
8	1924	powershell.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 TTPs 1 IoCs

defense_evasion

Debugger Evasion

T1622

pid	Process
1924	powershell.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\__PSScriptPolicyTest_qlq0xsj0.0ax.ps1	powershell.exe
File created	C:\Windows\__PSScriptPolicyTest_zex3mzo2.afr.psm1	powershell.exe

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007

Executes a command shell one-liner 1 TTPs 1 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
5716	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
1924	powershell.exe
1924	powershell.exe
1924	powershell.exe
1924	powershell.exe
1924	powershell.exe
1924	powershell.exe

Suspicious behavior: MapViewOfSection 1 TTPs 1 IoCs

defense_evasion privilege_escalation

Process Injection

T1055

pid	Process
1924	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1924	powershell.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 5716 wrote to memory of 4668	5716	cmd.exe	92
PID 5716 wrote to memory of 1924	5716	cmd.exe	93
PID 1924 wrote to memory of 4244	1924	powershell.exe	95
PID 1924 wrote to memory of 204	1924	powershell.exe	96
PID 1924 wrote to memory of 204	1924	powershell.exe	96

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\herman00102720262710.js
1⤵
- Reads the TCP/IP host and domain name from the registry
PID:880

C:\Windows\system32\cmd.exe
cmd.exe /c echo ^%Pirates^% | %Kobbers233% -
1⤵
- Process spawned unexpected child process
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
PID:5716
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /S /D /c" echo %Pirates% "
  2⤵
  PID:4668
- \??\c:\windows\syswow64\WindowsPowerShell\v1.0\powershell.exe
  "c:\windows\syswow64\WindowsPowerShell\v1.0\powershell.exe" -
  2⤵
  - Badlisted process makes network request
  - 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:1924
- - C:\Windows\SysWOW64\backgroundtaskhost.exe
    "C:\Windows\SysWOW64\backgroundtaskhost.exe"
    3⤵
    PID:4244
- - C:\Windows\SysWOW64\backgroundtaskhost.exe
    "C:\Windows\SysWOW64\backgroundtaskhost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:204

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

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/204-29-0x00000000018F0000-0x0000000001939000-memory.dmp

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memory/1924-14-0x0000000006A20000-0x0000000006A3A000-memory.dmp

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memory/1924-25-0x0000000074DB0000-0x000000007556C000-memory.dmp

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memory/1924-3-0x00000000057F0000-0x0000000005E3A000-memory.dmp

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memory/1924-4-0x00000000056E0000-0x0000000005702000-memory.dmp

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memory/1924-7-0x0000000074DB0000-0x000000007556C000-memory.dmp

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memory/1924-5-0x0000000005780000-0x00000000057E6000-memory.dmp

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memory/1924-6-0x0000000005E40000-0x0000000005EA6000-memory.dmp

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memory/1924-10-0x0000000005F70000-0x00000000062CB000-memory.dmp

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memory/1924-11-0x00000000064B0000-0x00000000064CE000-memory.dmp

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memory/1924-12-0x00000000064E0000-0x000000000652C000-memory.dmp

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memory/1924-13-0x0000000007C30000-0x00000000082AC000-memory.dmp

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memory/1924-0-0x0000000074DC2000-0x0000000074DC3000-memory.dmp

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memory/1924-2-0x0000000074DB0000-0x000000007556C000-memory.dmp

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memory/1924-15-0x0000000007900000-0x0000000007996000-memory.dmp

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memory/1924-21-0x0000000074DB0000-0x000000007556C000-memory.dmp

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memory/1924-18-0x0000000074DB0000-0x000000007556C000-memory.dmp

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memory/1924-19-0x0000000074DB0000-0x000000007556C000-memory.dmp

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memory/1924-20-0x0000000074DC2000-0x0000000074DC3000-memory.dmp

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memory/1924-17-0x0000000008870000-0x0000000008E2A000-memory.dmp

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memory/1924-22-0x0000000074DB0000-0x000000007556C000-memory.dmp

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memory/1924-23-0x0000000074DB0000-0x000000007556C000-memory.dmp

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memory/1924-24-0x0000000008E30000-0x000000000CEC0000-memory.dmp

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memory/1924-16-0x0000000007540000-0x0000000007562000-memory.dmp

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memory/1924-26-0x0000000074DB0000-0x000000007556C000-memory.dmp

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memory/1924-28-0x0000000074DB0000-0x000000007556C000-memory.dmp

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memory/1924-1-0x0000000002C60000-0x0000000002C96000-memory.dmp

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