Malicious PDF — malware analysis report

Static analysis result for SHA-256 803cecd97193dbd2…

MALICIOUS

PDF

91.8 KB Created: 2021-06-26 08:44:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: de1f6671c597cc8477a18442db233faa SHA-1: 8054683f30c0bce8dfc07ba0ee2a646d0afd0930 SHA-256: 803cecd97193dbd2d4332d66f19436cef95d60e56fb966bc0496a38a7dfff54b
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The file was detected as malicious by ClamAV and an ML classifier, and exhibits characteristics of an advance-fee scam lure. It contains numerous links, many pointing to compromised WordPress sites, suggesting an attempt to distribute further malicious content or phish users. The primary purpose appears to be a social engineering lure for financial fraud.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9935

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://claphamjunction.com.au/wp-content/plugins/super-forms/uploads/php/files/c6d2336246731dac059e37416e284434/94505106875.pdf In PDF document text
    • https://dentinale.eu/wp-content/plugins/super-forms/uploads/php/files/106da36ea4fcf8498ca6122730b69c97/debofukifikoguzap.pdfIn PDF document text
    • http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c18dc4bb6c2---33132902597.pdfIn PDF document text
    • http://taiyoaquris.cn/upload/userfiles/files/20210619134547.pdfIn PDF document text
    • https://edoxmarketing.com/wp-content/plugins/super-forms/uploads/php/files/v6cati50uf56u1n3ndg2vajc1q/zubidajinikusil.pdfIn PDF document text
    • http://ifa-astrologie.de/userfiles/file/pifamuvudajutugagesidexu.pdfIn PDF document text
    • https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a683d03e58a---pevofuzu.pdfIn PDF document text
    • https://paloaltospeakerseries.com/wp-content/plugins/super-forms/uploads/php/files/4cb4a0a887363f7377e683e42e87e790/belomibe.pdfIn PDF document text
    • https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/7jugevkdgk1de8rlkog3a57lae/25947607032.pdfIn PDF document text
    • https://www.reparaciondebomba.com.ar/wp-content/plugins/super-forms/uploads/php/files/5spvcb14qp6io7etanqks51754/ropajobotibubomumukibi.pdfIn PDF document text
    • http://n-production.com/upload/fckeditor/file/bomizodoforovolofagenawa.pdfIn PDF document text
    • https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/k4h86aues2bi12v1b79ltffo48/wowoz.pdfIn PDF document text
    • https://cakenepal.com/userfiles/file/50796539771.pdfIn PDF document text
    • http://mtsskzy.com/userfiles/file/15206663564.pdfIn PDF document text
    • https://muzeumkonstancina.pl/attachments/file/womidonejikafigojig.pdfIn PDF document text
    • https://www.3dreamchurch.com/wp-content/plugins/super-forms/uploads/php/files/983328e10a5bffc1f425e6c1ca86f94b/guribokenexoketiwofonumam.pdfIn PDF document text
    • http://northcity.rs/slike/files/busitup.pdfIn PDF document text
    • https://www.blackandwhite-salon.com/wp-content/plugins/super-forms/uploads/php/files/dae08f75ae5a4923178eb852ef437356/komujusinedug.pdfIn PDF document text
    • https://airbays.com/userfiles/file/40296381994.pdfIn PDF document text
    • https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/1607eed2133481---97456889315.pdfIn PDF document text
    • http://tachikawa-derma.biz/ckfinder/userfiles/files/minitejanazo.pdfIn PDF document text
    • https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16087c3e763eb7---89612846181.pdfIn PDF document text
    • https://hiampelectric.com/wp-content/plugins/super-forms/uploads/php/files/6287d20bdb576351f11bab356e2d6b17/91027341486.pdfIn PDF document text
    • http://abimobiliare.pl/pliki/File/xufinanuxurapep.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=state+of+michigan+enhanced+driver%27s+licensePDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001021d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1021D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00011a34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A34 11100 bytes
SHA-256: 8970a30d2bed0beea41f90dc013553208520138bcaf18209d1c6c14251f4e449
font_02_sfnt_off000133b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x133B7 17528 bytes
SHA-256: 55be604624d9776da4c445749fe7f44c51f6b2949faa954d4c2927da25b6c057

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