Malicious PDF — malware analysis report

Static analysis result for SHA-256 578472080a74deb5…

MALICIOUS

PDF

82.1 KB Created: 2021-04-02 13:49:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: c8b0f41e432ac014a3ad98dcbf2ba3ee SHA-1: 816d63753ecbd8d794dc0650bbb8c2651c9f0c04 SHA-256: 578472080a74deb5e89e6b70bc49444f68dffe863d854782f268bff3a4915726
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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://mezovuduw.ru/123?utm_term=alberta+rental+accommodation+inspection+report PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4484821/normal_6013388b98163.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415331/normal_604055694104c.pdfIn PDF document text
    • https://cdn.sqhk.co/faroziwe/ifskhja/zebovenos.pdfIn PDF document text
    • http://pewodebepefawi.scienceontheweb.net/the_art_of_botanical_illustration_wilfrid_blunt.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460460/normal_6056d4e88811a.pdfIn PDF document text
    • http://site-shop.xyz/vidmate_video_downloader_download_video_from_websitensid3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450628/normal_602610bcdf3ab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379477/normal_6056d83e66ff2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4505837/normal_5ff04c83d7799.pdfIn PDF document text
    • https://cdn.sqhk.co/fezifoxunif/jhidShb/wuvazowuxavixikejeje.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445550/normal_6039d2060cd5a.pdfIn PDF document text
    • http://dusamoka.mywebcommunity.org/les_autres_et_moi_isabelle_filliozat.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447447/normal_5ff7c795e2fad.pdfIn PDF document text
    • https://cdn.sqhk.co/xiwasazafu/ahacsjb/82647210878.pdfIn PDF document text
    • http://drovazvenigorod.ru/623397972687yq7f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410217/normal_5fd347168b776.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444104/normal_5fe3be452ccf2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zutaturusix.myartsonline.com/96053704300.pdfIn PDF document text
    • http://pidodexogejax.myartsonline.com/botupig.pdfIn PDF document text
    • http://xizokenimufewom.atwebpages.com/pidonabepixari.pdfIn PDF document text
    • http://lurarapekakaka.atwebpages.com/anatomy_of_flowering_plants_neet_mcq.pdfIn PDF document text
    • 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://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001024a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1024A 5348 bytes
SHA-256: faeb85d214a53eb3c682f8c4fc2df795aded195eeda92f68343cbef0ef478688
font_01_sfnt_off00011454.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11454 10856 bytes
SHA-256: 6780bb7e1f1a202144149b045243545b9e2f834f8ef82fa9bcf133070e41efc6

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