PDF malware analysis — malicious · af3f6254b1b12e1b

MALICIOUS

PDF

85.9 KB Created: 2021-06-25 22:05:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12

MD5: ae8fe30515d48ba4349cacc390b530e3 SHA-1: 2dee95dcac36e339887ea2fc79aeffa701f49f20 SHA-256: af3f6254b1b12e1bcdf7fc8146bfc1abdca3727a274f3ed1cdc31e19db9e9434

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF file exhibits characteristics of a phishing lure, employing a link farm hosted on compromised websites to direct users to potentially malicious content. The presence of multiple URLs, including one with a 'firmware download' term, suggests an attempt to trick users into downloading further malware. ClamAV detection as 'Pdf.Phishing.Trojan' strongly supports this assessment.

Machine Learning

Nyx PDF Classifier malicious score 0.5472

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM

PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
External URI info PDF_URI

PDF contains an external URL action
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://drafthe.ru/uplcv?utm_term=iphone+6+firmware+download PDF link annotation
- http://gongotour.com/FileData/ckfinder/files/20210601_A40FAE069772FDFB.pdfIn PDF document text
- https://pankalconstructora.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d24d7141b6---vapuzexakegexox.pdfIn PDF document text
- http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072ab692e00a---73993542980.pdfIn PDF document text
- https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/33413745c17384e62d86eaaaddc17ef5/notuvumefom.pdfIn PDF document text
- http://drstevealbrecht.com/wp-content/plugins/super-forms/uploads/php/files/5999fa031b3b5a0bd77239f214ae2ae9/gibijopoparisefajutogab.pdfIn PDF document text
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606f936c8f77a---73522565361.pdfIn PDF document text
- http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160846b4a6b0c5---pefuxezusatekeremi.pdfIn PDF document text
- https://hiddencliff.kr/FileData/ckfinder/files/20210625_6E312C666AF897A7.pdfIn PDF document text
- https://saraelv.no/wp-content/plugins/formcraft/file-upload/server/content/files/1608676347f0c6---77076370230.pdfIn PDF document text
- https://www.officinadelgustoroma.com/wp-content/plugins/super-forms/uploads/php/files/d882d868bf1cb2803dce3ddac4f686b6/kovirosopuxejuj.pdfIn PDF document text
- https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/160812e6f5147d---pukadowofarikukumaraz.pdfIn PDF document text
- https://lerong.vn/wp-content/plugins/super-forms/uploads/php/files/410c2b18e8a61eac40929b817f66a1c7/18866826635.pdfIn PDF document text
- http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/160b409446b4d2---filuz.pdfIn PDF document text
- https://www.tangelo.no/wp-content/plugins/formcraft/file-upload/server/content/files/1608b53e235c5c---lijafexot.pdfIn PDF document text
- http://profisystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1609f9cf427b56---xuvuxesojusuzopekazi.pdfIn PDF document text
- http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160a404b8bce62---rajatubade.pdfIn PDF document text
- https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/e2200c79545653bea59c993552d47033/zutuvunufobafakonududu.pdfIn PDF document text
- https://naseeha.org/wp-content/plugins/super-forms/uploads/php/files/bbbeff90fc02ab6910267ba24b76d3e7/fedepo.pdfIn PDF document text
- http://www.hydro-tg.pro/upload/file/78109751641.pdfIn PDF document text
- http://classicalgardenstatues.com/uplds/file/wejojanab.pdfIn PDF document text
- https://apexforestservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071814c205fd---58852956001.pdfIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00010d4f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10D4F	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off00012561.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12561	17692 bytes
SHA-256: `f9babb32aad9c107f6687d89ab383a4420af8f0f7c368b1f31e4c0364c67b9dd`

Open this report in the interactive analyzer, or submit your own file for analysis.