Malicious PDF — malware analysis report

Static analysis result for SHA-256 91371ada6c70283c…

MALICIOUS

PDF

58.1 KB Created: 2020-08-02 08:39:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 696d2ceb12bf1c347df5e632662df4fc SHA-1: 356ed48e18fb96ddc06abd960c0a6351fee053bd SHA-256: 91371ada6c70283c95c37926a3643a37096c5a821cce75bb1106c1afe45c4c69
194 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links, a common tactic for SEO poisoning and redirecting users to malicious sites. One prominent link, 'https://ttraff.com/pify?keyword=gom+player+mac', is flagged as a malicious redirector. The document body text and metadata suggest a lure related to 'Gom player mac', likely intended to trick users into clicking the malicious links.

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.com/pify?keyword=gom+player+mac In PDF document text
    • http://files.mswoodsclass.com/uploads/1/3/1/3/131384025/vutowabunutuvo-pasumuwekupot.pdfIn PDF document text
    • http://files.joanneclarkephotography.com/uploads/1/3/1/1/131163723/xavetu-dagulolatuf-numevanoduw-foxojina.pdfIn PDF document text
    • http://files.felipevis.com/uploads/1/3/0/7/130775470/4965137.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/1/0429/0487/9271/files/texazuvi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/39086675177.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3864/4136/files/87553144210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xodowowesibaxen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2270/1976/files/40271138832.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4567/5420/files/46370047198.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3272/4124/files/92689919552.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1171/8820/files/26768958073.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dubisetebezurazoxodo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5455/4533/files/16718013120.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3734/3387/files/the_getaway_black_monday.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3275/5875/files/tewodurugofa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1063/7476/files/zobosufowasazevuwoti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7005/4805/files/gojiri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3076/4955/files/luxewamar.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_off000072c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72C9 4588 bytes
SHA-256: 786655edbd6ca727075c453dbbe489f13657cee6133561299d341808c0c0cee8
font_01_sfnt_off0000825d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x825D 3888 bytes
SHA-256: 3790d9a7d1b1b111912d3e51df2d80ab8bc470b3e8a118982e762fa7e09add40
font_02_sfnt_off00009182.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9182 10420 bytes
SHA-256: 083c711259a24b61fdc2d84e00175535f6d19a34808e007d7fbc0e6a577c9ed5
font_03_sfnt_off0000b55c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB55C 17332 bytes
SHA-256: 54dd535e5f9fde366691e69436fb31b02b6358b68c90b25a8101269e2ff26ed1
font_04_sfnt_off0000ccdd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCDD 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333