Malicious PDF — malware analysis report

Static analysis result for SHA-256 f036e4532834d25e…

MALICIOUS

PDF

114.6 KB Created: 2020-08-11 22:25:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6450397768d38218f3f7685319280b82 SHA-1: b1633ca5059b22a47bd44cd315cca80f54266044 SHA-256: f036e4532834d25e330a86f729c4a3120b440e6ad05b232db6fa5e0b9d970987
234 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.ru'. The document body, though heavily obfuscated, contains the same URL, suggesting it's the primary lure. The PDF also exhibits characteristics of a link farm, embedding numerous external links, with 'cdn.shopify.com' being a dominant host for these links. This indicates a likely phishing or redirection campaign aiming to lead users to malicious sites.

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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://ttraff.ru/pify?keyword=martin+luther+on+christian+liberty+pdf.
  • 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=martin+luther+on+christian+liberty+pdf In PDF document text
    • http://files.thetimelesscollectionusa.com/uploads/1/3/2/6/132695874/dipasakaropodanub.pdfIn PDF document text
    • http://files.eyesonyoulashstudio.ca/uploads/1/3/0/7/130775607/rifesomesum-bukowemo-xedekigonaxotu.pdfIn PDF document text
    • http://mufilek.innovativetruth.org/uploads/1/3/1/8/131871390/217d3.pdfIn PDF document text
    • http://files.sellingmomma.com/uploads/1/3/1/8/131856290/ccdc41f969ab9.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/pegumi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8589/6609/files/47652908674.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8152/1560/files/55226468060.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9273/8201/files/14847391299.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5555/4470/files/calendrier_coupe_du_monde_rugby_2020_a_imprimer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6593/3973/files/carolyn_taylor_walking_the_talk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3139/5493/files/60913273066.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3183/6310/files/diablo_2_torrent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7388/8671/files/gilaxuvelazonawim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5468/6617/files/rewulupapefudilaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1769/9477/files/98802375644.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001786a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1786A 5372 bytes
SHA-256: 7b780403eb4a73f154a7530733c5504321ab0c0c8a8e9a26b476e5af61c639be
font_01_sfnt_off00018aa5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18AA5 10552 bytes
SHA-256: 8ca27bee6b2ef0673f3744abde3cf2c741353bda84861ea9dea2fc1d83d61c64
font_02_sfnt_off0001aea9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1AEA9 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c