Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a55fdba844284ab…

MALICIOUS

PDF

41.8 KB Created: 2020-08-25 21:05:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 735b58be2fd4d5ab2bc7159bc36da118 SHA-1: 713bc45a3964e8f19e88a6c450c4d17825ec83b0 SHA-256: 2a55fdba844284ab29f11a07c390fb94bd94393546c31ae3805235a0b5c88f7f
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a critical heuristic identifying a redirector link to 'ttraff.club'. The document body also contains the same redirector URL, suggesting it is the primary lure. The file is likely a phishing document designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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.club/pify?keyword=2pac+hail+mary+mp3 In PDF document text
    • http://files.saikatahamed.com/uploads/1/3/1/4/131453061/fuxapebajolojov-pavidatinonobet.pdfIn PDF document text
    • http://files.rendonmediation.com/uploads/1/3/0/9/130969932/vadizitutilil-rebogukuj-kavavolo.pdfIn PDF document text
    • http://files.hausofv.com/uploads/1/3/1/8/131858592/rululirukidolukeg.pdfIn PDF document text
    • http://pilugoja.rinaldog.com/uploads/1/3/0/7/130776716/2745920.pdfIn PDF document text
    • http://files.awesomealgebra.org/uploads/1/3/0/7/130775970/917927.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3767/7989/files/cover_letter_copy_and_paste_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4656/8098/files/3551412441.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3000/3367/files/cisco_lab_book_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7699/3702/files/excel_combine_rows_from_multiple_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6373/6475/files/mariam_khan_reporting_live_written_episode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/62374455636.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3976/9254/files/safamiwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9240/1558/files/class_diagram_for_railway_reservation_system.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7766/4929/files/nubabukesoramoligevexoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3531/1784/files/4453915737.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0105/2323/files/nunarolotetuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6942/3269/files/aspidiotus_nerii.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_off000064e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64E3 5296 bytes
SHA-256: 559deff6827969da467e7640fae83e8d4e52bcca7f27fecffa5a6d120c87680d
font_01_sfnt_off000076bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76BF 10472 bytes
SHA-256: 05daceb551124c644a359480ef84de973c3695c832a5ee68f39bf3ebf0e3f37c

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