Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a4332470240221c…

MALICIOUS

PDF

57.5 KB Created: 2020-08-23 03:19:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4f3ff41ab7d8a4f227af52caebfa4fbd SHA-1: 34076d6434b74c67f29de66312cc304a5072b17e SHA-256: 4a4332470240221c69f8f92d167682addde9dbdc25f18debc76c714f6eeaf9b9
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=bobo+live+88+tv+apk', is designed to lure users to malicious infrastructure. The document also contains a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or SEO poisoning tactic. No scripts were extracted from this sample.

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.cc/pify?keyword=bobo+live+88+tv+apk In PDF document text
    • http://files.yachtingexperience.com/uploads/1/3/1/4/131454523/nasajoluzoporodefu.pdfIn PDF document text
    • http://files.angusyoungroofing.co.uk/uploads/1/3/1/6/131637679/boxuvidadulinu.pdfIn PDF document text
    • http://files.conancarpenter.com/uploads/1/3/0/8/130814411/xosigakoko.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/1/0434/1920/5789/files/game_controller_for_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6629/2389/files/zewezeborowodinudipozi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/395667921.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/5686/1077/files/mimi_s_cafe_menu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3887/4532/files/sweat_with_kayla.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7398/4919/files/4504032505.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8078/5823/files/84083584404.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5249/8070/files/9085420270.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0058/5636/files/binomial_distribution_when_to_use_and_cdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5943/7975/files/australian_animals_pictures.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2372/7783/files/achyuta_ashtakam_lyrics_in_telugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1922/2687/files/angular_4_tutorial_step_by_step.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

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000053e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53E6 12204 bytes
SHA-256: c9d4794f13f970dcd57385122683bef4320b729a8697cd74ac1c6e5e5ec641da
font_01_sfnt_off00007b78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B78 4728 bytes
SHA-256: 3d403181de9b7ac87030c42931783d7bbf7fbe3375247a96dd23692d96af15e5
font_02_sfnt_off00008b95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B95 12784 bytes
SHA-256: fdbddf189bb5a26869acd4f09634a10426c816b5067bdcc3505ed52f3ebd5777
font_03_sfnt_off0000b499.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB499 16416 bytes
SHA-256: b1a7be413c16529a3efb36790fb1ede9dbc47b99b1dcf399fe3ce16d881d47c9
font_04_sfnt_off0000ca8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA8B 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378