Malicious PDF — malware analysis report

Static analysis result for SHA-256 431212c7ff805d63…

MALICIOUS

PDF

69.8 KB Created: 2020-08-02 12:04:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 81847f29a44c09d3b96aaf6bd7074fd0 SHA-1: 96d20cbcf9594ec579b15ec09c6e3c645c49e582 SHA-256: 431212c7ff805d63f31d37e721ec081514d9383eebfab9c97f518f3aefaa1668
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains multiple embedded URLs, with one identified as a malicious redirector. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags the URL https://ttraff.ru/pify?keyword=suzuki+bandit+1250cc as malicious. Additionally, the PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, with the first being https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85450973079.pdf. The document body contains text related to a Suzuki motorcycle and also includes the malicious URL, suggesting a lure to a potentially malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://ttraff.ru/pify?keyword=suzuki+bandit+1250cc In PDF document text
    • http://files.banchoryeastchurch.com/uploads/1/3/2/7/132710661/dd2e8307.pdfIn PDF document text
    • http://files.pregnancycentergadsdencounty.org/uploads/1/3/0/8/130813975/mijefixomawu.pdfIn PDF document text
    • http://files.milkywayfarms.net/uploads/1/3/1/8/131856770/3705256.pdfIn PDF document text
    • http://files.foodfightdenver.com/uploads/1/3/1/4/131453260/tuzuvikozuwu-zubotufara-dajenoxasuw.pdfIn PDF document text
    • http://files.nomadicsteve.com/uploads/1/3/1/4/131437538/42cb4690f8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85450973079.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3986/4485/files/litonipifagufinirixulusew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15636630427.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0144/4512/files/12047870584.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3459/8809/files/guponimobekoguraxiga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/19085525902.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/73792904944.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7027/3174/files/epsxe_sound_plugin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4145/5254/files/66680249909.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4420/8797/files/97772791067.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1248/8343/files/8533867769.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7396/1125/files/39790235715.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4489/6917/files/tkinter_cheat_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1772/2280/files/17611858701.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a57c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA57C 5088 bytes
SHA-256: 4adb84292d4994a19bb1b97882e604b518de93a434768d6b63c6cb1d49afd20d
font_01_sfnt_off0000b6da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB6DA 15616 bytes
SHA-256: dbc67bf312ccba831e14a8cae9c07c45ce09fa3fdb8666dbe6bad35930cf254b
font_02_sfnt_off0000e73d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE73D 16060 bytes
SHA-256: c43c81af3addadc619f1b50b0eb79006c69e58cb90abf43f7a5fbd940e22698c
font_03_sfnt_off0000fbd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBD1 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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