Malicious PDF — malware analysis report

Static analysis result for SHA-256 e36273450e0f65a8…

MALICIOUS

PDF

43.8 KB Created: 2020-08-19 22:27:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 826f06563953be62a14a373a1b512c0a SHA-1: a4e55b2b1904a394c66ea46da6db4fa33892049d SHA-256: e36273450e0f65a8751eefc69f6ebb39894a62e7c6ea19e44af97f862086ff2d
202 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one critical heuristic identifying a malicious redirector. The embedded URL and document body text both point to a lure for downloading 'utorrent apk android tv'. This suggests the document's primary purpose is to redirect users to malicious sites, likely for malware distribution or phishing.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.com/pify?keyword=utorrent+apk+android+tv In PDF document text
    • http://files.toddpellandphotography.com/uploads/1/3/2/6/132695697/5873277.pdfIn PDF document text
    • http://sikizos.anniesshineandsparkle.com/uploads/1/3/0/7/130738714/3157006.pdfIn PDF document text
    • http://files.mariecharpentier.net/uploads/1/3/1/4/131483019/batipaxadas.pdfIn PDF document text
    • http://files.moosejooce.com/uploads/1/3/1/4/131453283/tuxuxu.pdfIn PDF document text
    • http://files.destinationsint.com/uploads/1/3/1/4/131453574/jukukopegiruje.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/1/0428/8253/1481/files/wiwotikazegiwipewixom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8391/4654/files/sowubudaremuluzixow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9051/8940/files/30480186515.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2476/0484/files/definition_of_e_marketing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4748/3552/files/58283058004.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3263/2730/files/everything_is_figureoutable_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2782/2752/files/vba_excel_2016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1984/5284/files/jewugedomoxubiwovimupariz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5178/5109/files/deadlock_recovery_in_operating_system.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2782/2749/files/53464825680.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9420/3806/files/34470647552.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0594/1672/files/video_maker_free_full_version.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6045/3791/files/10978219495.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000572e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x572E 4860 bytes
SHA-256: 75c6f186547a554bb06213cf37d687721e850e2fee32c484fb89668e6eeed2d4
font_01_sfnt_off000067c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67C8 10588 bytes
SHA-256: 22b78af5269dc92131752f1a03f85c70555515b3a06da0f54fa1fe3e2b108be1
font_02_sfnt_off00008c3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C3A 16316 bytes
SHA-256: 43c1ee616dc3be43b5b024fbb240f2c1c65d323ab86308c39a248d24909b890d