guloader | 0dd2bc546cd4648d98c9d79e2e87810cb215bbff35b163edb71e75e10423cb4c

Analysis

max time kernel
148s
max time network
125s
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, 17:25

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General

Target
0dd2bc546cd4648d98c9d79e2e87810cb215bbff35b163edb71e75e10423cb4c.js
Size 85KB
Sample261027-vzfhtatt6m
SHA256 0dd2bc546cd4648d98c9d79e2e87810cb215bbff35b163edb71e75e10423cb4c
MD5 4c40e4c5767e353b93f8821282bdd3a3
SHA1 d3d0b1e10416b2dafe0c018e5713571e1c15c786
SHA512 d231041c9ee98c39a01793f032ecfba87e6bb502c1f520fbf89f372f3ef5dfed2c90253163c6a76de4cd331642542163abd0b1de0689431ea08fdd3ef9eb0738
SSDEEP 1536:SrKzZpI/sZObDjVFdQe8IBjcn59gL2mdeqmCULaVjlL/kvE:JpWsc3jVFH8IM7dQeqmCvVdmE
TLSH
T1DF832860CA1144778F87BB9CACB94660C6ACC325842749F0F9E8CB0D9509DECE77D66B
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	432	4804	cmd.exe	89

Badlisted process makes network request 1 IoCs

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

flow	pid	Process
7	868	powershell.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 TTPs 1 IoCs

defense_evasion

Debugger Evasion

T1622

pid	Process
868	powershell.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\__PSScriptPolicyTest_t4lb0okf.iso.ps1	powershell.exe
File created	C:\Windows\__PSScriptPolicyTest_kjixkq0j.m4l.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
432	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	backgroundtaskhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
868	powershell.exe
868	powershell.exe
868	powershell.exe
868	powershell.exe
868	powershell.exe
868	powershell.exe

Suspicious behavior: MapViewOfSection 1 TTPs 1 IoCs

defense_evasion privilege_escalation

Process Injection

T1055

pid	Process
868	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	868	powershell.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 432 wrote to memory of 3080	432	cmd.exe	92
PID 432 wrote to memory of 868	432	cmd.exe	93
PID 868 wrote to memory of 2464	868	powershell.exe	95
PID 868 wrote to memory of 4624	868	powershell.exe	96
PID 868 wrote to memory of 4624	868	powershell.exe	96

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\0dd2bc546cd4648d98c9d79e2e87810cb215bbff35b163edb71e75e10423cb4c.js
1⤵
- Reads the TCP/IP host and domain name from the registry
PID:3748

C:\Windows\system32\cmd.exe
cmd.exe /c echo ^%Sweese^% | %Circumpacific% -
1⤵
- Process spawned unexpected child process
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
PID:432
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /S /D /c" echo %Sweese% "
  2⤵
  PID:3080
- \??\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:868
- - C:\Windows\SysWOW64\backgroundtaskhost.exe
    "C:\Windows\SysWOW64\backgroundtaskhost.exe"
    3⤵
    PID:2464
- - C:\Windows\SysWOW64\backgroundtaskhost.exe
    "C:\Windows\SysWOW64\backgroundtaskhost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4624

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/868-14-0x0000000006D50000-0x0000000006D6A000-memory.dmp

Download

memory/868-24-0x0000000009360000-0x000000000CC31000-memory.dmp

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memory/868-2-0x0000000074340000-0x0000000074AFC000-memory.dmp

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memory/868-3-0x0000000005A50000-0x000000000609A000-memory.dmp

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memory/868-4-0x0000000074340000-0x0000000074AFC000-memory.dmp

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memory/868-5-0x0000000006150000-0x0000000006172000-memory.dmp

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memory/868-6-0x00000000061F0000-0x0000000006256000-memory.dmp

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memory/868-7-0x0000000006260000-0x00000000062C6000-memory.dmp

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memory/868-10-0x00000000063C0000-0x000000000671B000-memory.dmp

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memory/868-11-0x00000000067E0000-0x00000000067FE000-memory.dmp

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memory/868-12-0x0000000006810000-0x000000000685C000-memory.dmp

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memory/868-13-0x0000000008160000-0x00000000087DC000-memory.dmp

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memory/868-1-0x0000000002FC0000-0x0000000002FF6000-memory.dmp

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memory/868-0-0x0000000074352000-0x0000000074353000-memory.dmp

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memory/868-20-0x0000000074352000-0x0000000074353000-memory.dmp

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memory/868-17-0x0000000008DA0000-0x000000000935A000-memory.dmp

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memory/868-18-0x0000000074340000-0x0000000074AFC000-memory.dmp

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memory/868-19-0x0000000074340000-0x0000000074AFC000-memory.dmp

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memory/868-16-0x0000000007870000-0x0000000007892000-memory.dmp

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memory/868-21-0x0000000074340000-0x0000000074AFC000-memory.dmp

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memory/868-22-0x0000000074340000-0x0000000074AFC000-memory.dmp

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memory/868-23-0x0000000074340000-0x0000000074AFC000-memory.dmp

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memory/868-15-0x0000000007C30000-0x0000000007CC6000-memory.dmp

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memory/868-25-0x0000000074340000-0x0000000074AFC000-memory.dmp

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memory/868-27-0x0000000074340000-0x0000000074AFC000-memory.dmp

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memory/4624-26-0x00000000009B0000-0x00000000009DF000-memory.dmp

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