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

    • GULOADER has been detected (YARA)

      • 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe (PID: 7152)
      • 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe (PID: 2800)
    • Executing a file with an untrusted certificate

      • 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe (PID: 2800)
      • 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe (PID: 7152)
    • 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)
    • Application launched itself

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

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

      • 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)
  • INFO

    • Creates files or folders in the user directory

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

      • 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe (PID: 7152)
      • 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe (PID: 2800)
    • Reads the computer name

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

      • 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe (PID: 7152)
    • Reads the machine GUID from the registry

      • 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

      • 273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe (PID: 2800)
      • slui.exe (PID: 2136)
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\Content\B46811C17859FFB409CF0E904A4AA8F8binary
MD5:1FBB37F79B317A9A248E7C4CE4F5BAC5
SHA256:9BF639C595FE335B6F694EE35990BEFD2123F5E07FD1973FF619E3FC88F5F49F
7152273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exeC:\Users\admin\AppData\Local\Phalerated\polygenouss\Beseeched\cabiritic.ansbinary
MD5:43E4AF3EF346295C7EA92C00C0AD7DE9
SHA256:57CAC735C3CF1C8D01D5B6B5AAB6B717202636359C7104A2F03340D0C80D3DBA
7152273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exeC:\Users\admin\AppData\Local\Phalerated\polygenouss\Huskies.Prebinary
MD5:E0415888322AFF96EDF270F027210FA1
SHA256:CCB21C7536972A5E7C69655A36B30E498F770ADC6910C19D5217206458AF7015
7152273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exeC:\Users\admin\AppData\Local\Phalerated\polygenouss\Sarakolle.Tonbinary
MD5:0D57CE5E8C36E5B7BDCBF43B555E281A
SHA256:B0CD6A3398D744C0450C7296457F4C353858D8AE1ABA9037EAEB49484E3F7A95
7152273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exeC:\Users\admin\AppData\Local\Phalerated\polygenouss\Operary\saleppen.txttext
MD5:5A176D335D0FF09D6F65F13709582423
SHA256:E98CCE51F0CC18C8D335EB55C44C33003B60FFA9E223BFF52193D48444892F2E
2800273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12binary
MD5:4E53E707C5F5794D0DE33538161EA950
SHA256:95C62A8C8D2485DAABF512CC938603A3AFB4535425C4662893C6B0CE06C457B3
2800273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7B5FC60CCA5D8CF767A7572C65728CD6_80AA51F10C2F500DEBC45F3B2A97930Cder
MD5:184A0946FB17FC1927361E4173627C17
SHA256:CC30B0BA0BA880258DC9001D2E122AE268656ADBBF73D7A2B5FAE1F0BC3031EB
2800273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exeC:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8binary
MD5:BA84A823ECC1631CBC8FB0B807F47A8B
SHA256:FAB6B3B8604F21D617E5F574A2035966607E33AF683A8932CF429F26A9944258
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
5496
MoUsoCoreWorker.exe
GET
200
184.30.21.171:80
http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl
unknown
whitelisted
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%2BxaB8dGuvcNFkCEA85wFTvuwmlCdtY0UxEIqg%3D
unknown
whitelisted
2800
273531ea4c18e3bd797c54135fe5de836afeb980b9857f79cede86b395ef334c.exe
GET
200
216.58.206.35:80
http://c.pki.goog/r/r4.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
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
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
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