File name:

273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c

Full analysis: https://app.any.run/tasks/3c46b814-05da-4d85-8840-4fa445a7ae5d
Verdict: Malicious activity
Threats:

GuLoader is an advanced downloader written in shellcode. It’s used by criminals to distribute other malware, notably trojans, on a large scale. It’s infamous for using anti-detection and anti-analysis capabilities.

Analysis date: May 10, 2025, 01:36:19
OS: Windows 10 Professional (build: 19044, 64 bit)
Tags:
guloader
Indicators:
MIME: application/vnd.microsoft.portable-executable
File info: PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archive, 5 sections
MD5:

9A3AE1E9A22CF99B4EA424A536909502

SHA1:

A026826851F8424615B004793D4DB42645F2D672

SHA256:

273531EA4C18E3BD797C54135FE5DE836AFEB980B9857F79CEDE86B395EF334C

SSDEEP:

49152:PcVsr31x1DUDMfHbeQoNGs4pCWECiOQL+zladHU+EEH7BM8YTWVtjbORDjWInzp4:PQsr31QIjeQoMhp8NbHdeei8YTmjbOJG

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distorted by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.
  • MALICIOUS

    • Executing a file with an untrusted certificate

      • 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe (PID: 7152)
      • 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe (PID: 2800)
    • GULOADER has been detected (YARA)

      • 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe (PID: 7152)
      • 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe (PID: 2800)
    • GULOADER SHELLCODE has been detected (YARA)

      • 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe (PID: 7152)
      • 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe (PID: 2800)
  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe (PID: 7152)
    • Malware-specific behavior (creating "System.dll" in Temp)

      • 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe (PID: 7152)
    • There is functionality for taking screenshot (YARA)

      • 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe (PID: 7152)
      • 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe (PID: 2800)
    • The process creates files with name similar to system file names

      • 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe (PID: 7152)
    • Application launched itself

      • 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe (PID: 7152)
    • Reads security settings of Internet Explorer

      • 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe (PID: 2800)
  • INFO

    • Reads the computer name

      • 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe (PID: 7152)
      • 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe (PID: 2800)
    • Checks supported languages

      • 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe (PID: 7152)
      • 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe (PID: 2800)
    • The sample compiled with english language support

      • 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe (PID: 7152)
    • Creates files or folders in the user directory

      • 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe (PID: 7152)
      • 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe (PID: 2800)
    • Create files in a temporary directory

      • 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe (PID: 7152)
    • Checks proxy server information

      • 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe (PID: 2800)
    • Reads the software policy settings

      • slui.exe (PID: 2136)
      • 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe (PID: 2800)
    • Reads the machine GUID from the registry

      • 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe (PID: 2800)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | Win32 Executable MS Visual C++ (generic) (42.2)
.exe | Win64 Executable (generic) (37.3)
.dll | Win32 Dynamic Link Library (generic) (8.8)
.exe | Win32 Executable (generic) (6)
.exe | Generic Win/DOS Executable (2.7)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2014:10:07 04:40:26+00:00
ImageFileCharacteristics: No relocs, Executable, No line numbers, No symbols, 32-bit
PEType: PE32
LinkerVersion: 6
CodeSize: 25088
InitializedDataSize: 186368
UninitializedDataSize: 2048
EntryPoint: 0x322e
OSVersion: 4
ImageVersion: 6
SubsystemVersion: 4
Subsystem: Windows GUI
FileVersionNumber: 2.5.0.0
ProductVersionNumber: 2.5.0.0
FileFlagsMask: 0x0000
FileFlags: (none)
FileOS: Win32
ObjectFileType: Executable application
FileSubtype: -
LanguageCode: English (U.S.)
CharacterSet: Windows, Latin1
Comments: assings
FileDescription: benzindunke nemheds evenblush
FileVersion: 2.5.0.0
LegalTrademarks: skiftedagens semiprofessionals peden
OriginalFileName: fuldskab grandstander.exe
ProductVersion: 2.5.0.0
No data.
screenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
134
Monitored processes
5
Malicious processes
2
Suspicious processes
0

Behavior graph

Click at the process to see the details
start #GULOADER 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe sppextcomobj.exe no specs slui.exe #GULOADER 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe slui.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
2136"C:\WINDOWS\System32\SLUI.exe" RuleId=3482d82e-ca2c-4e1f-8864-da0267b484b2;Action=AutoActivate;AppId=55c92734-d682-4d71-983e-d6ec3f16059f;SkuId=4de7cb65-cdf1-4de9-8ae8-e3cce27b9f2c;NotificationInterval=1440;Trigger=TimerEventC:\Windows\System32\slui.exe
SppExtComObj.Exe
User:
NETWORK SERVICE
Company:
Microsoft Corporation
Integrity Level:
SYSTEM
Description:
Windows Activation Client
Version:
10.0.19041.1 (WinBuild.160101.0800)
Modules
Images
c:\windows\system32\slui.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\bcrypt.dll
c:\windows\system32\user32.dll
2800"C:\Users\admin\AppData\Local\Temp\273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe" C:\Users\admin\AppData\Local\Temp\273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe
273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe
User:
admin
Integrity Level:
MEDIUM
Description:
benzindunke nemheds evenblush
Version:
2.5.0.0
Modules
Images
c:\windows\syswow64\mshtml.dll
c:\users\admin\appdata\local\temp\273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\apphelp.dll
6424C:\WINDOWS\System32\slui.exe -EmbeddingC:\Windows\System32\slui.exesvchost.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Activation Client
Version:
10.0.19041.1 (WinBuild.160101.0800)
Modules
Images
c:\windows\system32\slui.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\bcrypt.dll
c:\windows\system32\user32.dll
6620C:\WINDOWS\system32\SppExtComObj.exe -EmbeddingC:\Windows\System32\SppExtComObj.Exesvchost.exe
User:
NETWORK SERVICE
Company:
Microsoft Corporation
Integrity Level:
SYSTEM
Description:
KMS Connection Broker
Version:
10.0.19041.3996 (WinBuild.160101.0800)
Modules
Images
c:\windows\system32\sppextcomobj.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\bcrypt.dll
c:\windows\system32\oleaut32.dll
7152"C:\Users\admin\AppData\Local\Temp\273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe" C:\Users\admin\AppData\Local\Temp\273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe
explorer.exe
User:
admin
Integrity Level:
MEDIUM
Description:
benzindunke nemheds evenblush
Exit code:
0
Version:
2.5.0.0
Modules
Images
c:\users\admin\appdata\local\temp\273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\apphelp.dll
c:\windows\syswow64\user32.dll
Total events
2 231
Read events
1 671
Write events
560
Delete events
0

Modification events

(PID) Process:(7152) 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exeKey:HKEY_CURRENT_USER\Yndighedens\Duodenums105\plebiscite
Operation:writeName:candela
Value:
FFE73BC5
(PID) Process:(7152) 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exeKey:HKEY_CURRENT_USER\befordringsmidlers\kirkehistorien\holdbare
Operation:writeName:bobbet
Value:
%blodmelsfabrikken%\Slagsang.htm
(PID) Process:(7152) 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exeKey:HKEY_CURRENT_USER\Hjertecenter\artilleristerne\orthopedists
Operation:writeName:prisreduktioner
Value:
%skridfasteste%\salvoes.gif
(PID) Process:(7152) 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exeKey:HKEY_CURRENT_USER\soefolk\Uninstall\infinitude
Operation:writeName:kinders
Value:
1
(PID) Process:(7152) 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exeKey:HKEY_CURRENT_USER\SOFTWARE\Service
Operation:writeName:System_Check
Value:
kernel32::SetFilePointer(i r5, i 13101 , i 0,i 0)
(PID) Process:(7152) 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exeKey:HKEY_CURRENT_USER\SOFTWARE\Service
Operation:writeName:System_Check
Value:
kernel32::VirtualAlloc(i 0,i 15020032, i 0x3000, i 0x40)p.r2
(PID) Process:(7152) 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exeKey:HKEY_CURRENT_USER\SOFTWARE\Service
Operation:writeName:System_Check
Value:
kernel32::ReadFile(i r5, i r2, i 15020032,*i 0, i 0)
(PID) Process:(7152) 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exeKey:HKEY_CURRENT_USER\SOFTWARE\Service
Operation:writeName:System_Check
Value:
user32::EnumWindows(i r2 ,i 0)
(PID) Process:(7152) 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exeKey:HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\CLR\Start
Operation:writeName:CLR Start
Value:
2
(PID) Process:(7152) 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exeKey:HKEY_CURRENT_USER\isolationsmaterialer\resumnms
Operation:writeName:overpopulously
Value:
44F491
Executable files
1
Suspicious files
11
Text files
2
Unknown types
1

Dropped files

PID
Process
Filename
Type
7152273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exeC:\Users\admin\AppData\Local\Phalerated\polygenouss\Claudias.epi
MD5:
SHA256:
7152273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exeC:\Users\admin\AppData\Local\Phalerated\polygenouss\Operary\spidsningens.sim
MD5:
SHA256:
2800273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8binary
MD5:BA84A823ECC1631CBC8FB0B807F47A8B
SHA256:FAB6B3B8604F21D617E5F574A2035966607E33AF683A8932CF429F26A9944258
2800273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7B5FC60CCA5D8CF767A7572C65728CD6_80AA51F10C2F500DEBC45F3B2A97930Cbinary
MD5:27048FB54E8F19C992BE53584ABCE71A
SHA256:F16716C9918FBF3D62B6EA0EB35F04ABFF26583FA48F8DBDFDC8225FA5E2DCAC
7152273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exeC:\Users\admin\AppData\Local\Phalerated\polygenouss\Sarakolle.Tonbinary
MD5:0D57CE5E8C36E5B7BDCBF43B555E281A
SHA256:B0CD6A3398D744C0450C7296457F4C353858D8AE1ABA9037EAEB49484E3F7A95
7152273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exeC:\Users\admin\AppData\Local\Phalerated\polygenouss\Operary\goldweed.flubinary
MD5:78D1783115077754DFCBD8624CD5BA7D
SHA256:41CDC8E99FBC5E6054DAC19FC9B57FF4DDF15228FA638181BEEBE35E0668623E
7152273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exeC:\Users\admin\AppData\Local\Phalerated\polygenouss\Manacle.initext
MD5:56681246AE6EB5089B8753F8C50CEB8F
SHA256:5D06A547B587B502338768CFC2F76B5C322FA4E3A42F40A39A9E75884FE741F5
7152273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exeC:\Users\admin\AppData\Local\Phalerated\polygenouss\Operary\saleppen.txttext
MD5:5A176D335D0FF09D6F65F13709582423
SHA256:E98CCE51F0CC18C8D335EB55C44C33003B60FFA9E223BFF52193D48444892F2E
7152273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exeC:\Users\admin\AppData\Local\Temp\nswBA79.tmp\System.dllexecutable
MD5:3E6BF00B3AC976122F982AE2AADB1C51
SHA256:4FF9B2678D698677C5D9732678F9CF53F17290E09D053691AAC4CC6E6F595CBE
7152273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exeC:\Users\admin\AppData\Local\Phalerated\polygenouss\Huskies.Prebinary
MD5:E0415888322AFF96EDF270F027210FA1
SHA256:CCB21C7536972A5E7C69655A36B30E498F770ADC6910C19D5217206458AF7015
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
10
TCP/UDP connections
25
DNS requests
19
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
GET
200
23.48.23.176:80
http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl
unknown
whitelisted
GET
200
184.30.21.171:80
http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl
unknown
whitelisted
5496
MoUsoCoreWorker.exe
GET
200
184.30.21.171:80
http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl
unknown
whitelisted
6544
svchost.exe
GET
200
2.17.190.73:80
http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D
unknown
whitelisted
2800
273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe
GET
200
216.58.206.35:80
http://c.pki.goog/r/gsr1.crl
unknown
whitelisted
2800
273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe
GET
200
216.58.206.35:80
http://o.pki.goog/we2/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTuMJxAT2trYla0jia%2F5EUSmLrk3QQUdb7Ed66J9kQ3fc%2BxaB8dGuvcNFkCEH0th7t%2BrhK7Cmbia6iF80g%3D
unknown
whitelisted
2800
273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe
GET
200
216.58.206.35:80
http://o.pki.goog/we2/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTuMJxAT2trYla0jia%2F5EUSmLrk3QQUdb7Ed66J9kQ3fc%2BxaB8dGuvcNFkCEA85wFTvuwmlCdtY0UxEIqg%3D
unknown
whitelisted
2800
273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe
GET
200
216.58.206.35:80
http://c.pki.goog/r/r4.crl
unknown
whitelisted
6388
SIHClient.exe
GET
200
2.23.246.101:80
http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl
unknown
whitelisted
6388
SIHClient.exe
GET
200
2.23.246.101:80
http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl
unknown
whitelisted
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
4
System
192.168.100.255:137
whitelisted
2104
svchost.exe
51.124.78.146:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
51.124.78.146:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
23.48.23.176:80
crl.microsoft.com
Akamai International B.V.
DE
whitelisted
184.30.21.171:80
www.microsoft.com
AKAMAI-AS
DE
whitelisted
5496
MoUsoCoreWorker.exe
184.30.21.171:80
www.microsoft.com
AKAMAI-AS
DE
whitelisted
4
System
192.168.100.255:138
whitelisted
2112
svchost.exe
51.124.78.146:443
settings-win.data.microsoft.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted
3216
svchost.exe
172.211.123.249:443
client.wns.windows.com
MICROSOFT-CORP-MSN-AS-BLOCK
FR
whitelisted
6544
svchost.exe
20.190.160.65:443
login.live.com
MICROSOFT-CORP-MSN-AS-BLOCK
NL
whitelisted

DNS requests

Domain
IP
Reputation
settings-win.data.microsoft.com
  • 51.124.78.146
  • 20.73.194.208
whitelisted
google.com
  • 142.250.181.238
whitelisted
crl.microsoft.com
  • 23.48.23.176
  • 23.48.23.156
whitelisted
www.microsoft.com
  • 184.30.21.171
  • 2.23.246.101
whitelisted
client.wns.windows.com
  • 172.211.123.249
whitelisted
login.live.com
  • 20.190.160.65
  • 40.126.32.133
  • 20.190.160.17
  • 40.126.32.140
  • 20.190.160.3
  • 20.190.160.128
  • 20.190.160.5
  • 20.190.160.64
whitelisted
ocsp.digicert.com
  • 2.17.190.73
whitelisted
drive.google.com
  • 142.250.186.142
whitelisted
c.pki.goog
  • 216.58.206.35
whitelisted
o.pki.goog
  • 216.58.206.35
whitelisted

Threats

No threats detected
No debug info