Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a1c317699f394b8…

MALICIOUS

PDF

56.2 KB Created: 2020-09-17 12:07:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2ce28336f561d570556830507089ed14 SHA-1: 6c8d68f70a0f020f20380c3c154cfd5bedc6513e SHA-256: 7a1c317699f394b84cf96269b80fd17a7a87018352cd759e39cde372fa9267cb
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous embedded links, with at least one redirecting to a known malicious domain (ttraff.link). The document body and embedded links suggest a lure to download further content, likely malicious. The presence of multiple SEO-style links and a redirector indicates a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.link/wix?keyword=grep+manual+regex In PDF document text
    • http://kimapaxup.bbt-livonia.com/uploads/1/3/2/3/132303354/18d0dca34.pdfIn PDF document text
    • http://gumofovu.michaelcullipher.com/uploads/1/3/1/3/131379012/vujil.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/1/0437/0720/3739/files/72374528424.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2276/7512/files/causes_of_induced_abortion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4488/1059/files/92551739871.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6594/1917/files/problemas_psicologicos_en_nios.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9236/1887/files/zikemigixinow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53741046047.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3146/8951/files/aneurisma_cerebral_2020.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_off0000890a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x890A 5060 bytes
SHA-256: 57af233cc272fc280b6aa2a2d2ccaa72bb874d5d53bf4d7a50d64ff3a7559fea
font_01_sfnt_off00009a32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A32 10844 bytes
SHA-256: 36144ae0cc07db2dfe45a8d6e526d32070eb2ef9517f3783484fcdff254fee15
font_02_sfnt_off0000beed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBEED 16244 bytes
SHA-256: d1c727812a8f964882f1301a824b6764c0f15d18538cb9e0ca36d9eb6e966c11