MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d4471111f0e92ea1d7760bd2cc6f75ce16bc8245d077edc47d56181f23a96cea. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry



GuLoader


Vendor detections: 12


Intelligence 12 IOCs YARA File information Comments

SHA256 hash: d4471111f0e92ea1d7760bd2cc6f75ce16bc8245d077edc47d56181f23a96cea
SHA3-384 hash: 0b35f9b69e2540e0c182332fa5f435557a2dd3bf16fc37c7b4d4c28929dc3341440640ff6f5b66f957e682aae4c0074c
SHA1 hash: e3673862248c0024d69c68017f4f936162163b3e
MD5 hash: 636e07fb2b1e998de37b36e2ed284c69
humanhash: angel-hydrogen-twenty-cardinal
File name:admindemo.exe
Download: download sample
Signature GuLoader
File size:627'403 bytes
First seen:2023-12-14 16:24:56 UTC
Last seen:2023-12-18 08:51:45 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash e221f4f7d36469d53810a4b5f9fc8966 (118 x GuLoader, 28 x RemcosRAT, 21 x Formbook)
ssdeep 12288:tlwZvN3v7OCAiBROyYEXhdCVhkvRLQKzU3Gj503GjlA:cvpAoayhdAkZnIgiz
Threatray 7 similar samples on MalwareBazaar
TLSH T1E6D40152E6E688DFEC2A07F1AC3BDD1111576DAEB4B1261F16AF742063B3393105BD0A
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 0d01035941010d00 (2 x GuLoader)
Reporter James_inthe_box
Tags:exe GuLoader

Intelligence


File Origin
# of uploads :
3
# of downloads :
321
Origin country :
US US
Vendor Threat Intelligence
Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a file in the %AppData% subdirectories
Сreating synchronization primitives
Creating a process from a recently created file
Creating a process with a hidden window
Sending an HTTP GET request
Launching a process
Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control installer lolbin overlay packed shell32
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
FormBook, GuLoader
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
Found suspicious powershell code related to unpacking or dynamic code loading
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Snort IDS alert for network traffic
Suspicious powershell command line found
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Very long command line found
Writes to foreign memory regions
Yara detected FormBook
Yara detected GuLoader
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1362264 Sample: admindemo.exe Startdate: 14/12/2023 Architecture: WINDOWS Score: 100 40 www.skinnovations.xyz 2->40 42 www.zenithwave.net 2->42 44 18 other IPs or domains 2->44 68 Snort IDS alert for network traffic 2->68 70 Malicious sample detected (through community Yara rule) 2->70 72 Antivirus detection for URL or domain 2->72 76 2 other signatures 2->76 12 admindemo.exe 22 2->12         started        14 wab.exe 3 1 2->14         started        16 wab.exe 1 2->16         started        signatures3 74 Performs DNS queries to domains with low reputation 40->74 process4 process5 18 powershell.exe 12 12->18         started        signatures6 62 Suspicious powershell command line found 18->62 64 Very long command line found 18->64 66 Found suspicious powershell code related to unpacking or dynamic code loading 18->66 21 powershell.exe 11 18->21         started        24 conhost.exe 18->24         started        process7 signatures8 78 Writes to foreign memory regions 21->78 26 wab.exe 6 21->26         started        process9 dnsIp10 52 kyfh.mypi.co 193.163.203.13, 443, 49715 FR-RENATER-LIMOUSINReseauRegionalLimousinEU Denmark 26->52 80 Maps a DLL or memory area into another process 26->80 30 msDvHXmUIbwVwDMRgf.exe 26->30 injected signatures11 process12 process13 32 rasdial.exe 1 13 30->32         started        signatures14 54 Tries to steal Mail credentials (via file / registry access) 32->54 56 Tries to harvest and steal browser information (history, passwords, etc) 32->56 58 Writes to foreign memory regions 32->58 60 3 other signatures 32->60 35 msDvHXmUIbwVwDMRgf.exe 32->35 injected 38 firefox.exe 32->38         started        process15 dnsIp16 46 onstatic-fr.setupdns.net 81.88.57.68, 49754, 49755, 49756 REGISTER-ASIT Italy 35->46 48 alfiomarchini.com 51.254.223.196, 49749, 49750, 49751 OVHFR France 35->48 50 9 other IPs or domains 35->50
Threat name:
Win32.Trojan.GuLoader
Status:
Malicious
First seen:
2023-12-14 06:29:51 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
12 of 37 (32.43%)
Threat level:
  5/5
Result
Malware family:
guloader
Score:
  10/10
Tags:
family:guloader downloader persistence
Behaviour
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Adds policy Run key to start application
Guloader,Cloudeye
Unpacked files
SH256 hash:
d4471111f0e92ea1d7760bd2cc6f75ce16bc8245d077edc47d56181f23a96cea
MD5 hash:
636e07fb2b1e998de37b36e2ed284c69
SHA1 hash:
e3673862248c0024d69c68017f4f936162163b3e
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


The table below shows additional information about this malware sample such as delivery method and external references.

  
Delivery method
Other

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