Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6d3e70f5d20c346…

MALICIOUS

PDF

44.0 KB Created: 2020-08-18 22:55:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b817c1fc13c5e7bc5b5ffdd34f4ba872 SHA-1: 80066400f22f202702f1bac5fcb6091dea3bfdce SHA-256: e6d3e70f5d20c346450eb9892d287d49aaa104da63aea60bc35a5a526e4b5f5c
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF file contains a critical heuristic indicating it's a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=filezilla++mac+os+x+10.+6'. Additionally, another critical heuristic flags it as a PDF SEO link farm, with numerous links hosted on cdn.shopify.com, including 'https://cdn.shopify.com/s/files/1/0430/4306/1913/files/99709556719.pdf'. The document body also contains text related to 'Filezilla mac os x 10. 6' and MFA lure, suggesting a phishing attempt to harvest credentials or session tokens.

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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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.ru/pify?keyword=filezilla++mac+os+x+10.+6 In PDF document text
    • http://files.libbysaylor.com/uploads/1/3/0/7/130739308/dapizenize.pdfIn PDF document text
    • http://files.thebadinvestor.com/uploads/1/3/1/8/131856706/dasubanobab_dijamipobemoz.pdfIn PDF document text
    • http://fidoge.peakdistributingia.com/uploads/1/3/0/7/130776208/tululofes_pavafeja_tobifavozum_juxejidam.pdfIn PDF document text
    • http://files.royaloakschoolsfoundation.org/uploads/1/3/1/4/131454270/bijefasoba.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/1/0430/4306/1913/files/99709556719.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9888/9621/files/zufejixugenasibudaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6674/4220/files/finding_percentages_worksheet_tes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0151/1077/files/adolescence_psychology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1391/5303/files/63173770250.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85583151980.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0459/1254/files/wiwilaxezepabugul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5407/9910/files/canon_t3i_firmware_1._0._2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0115/9575/files/autocad_drawing_viewer_for_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3343/5032/files/opposite_adjectives_in_english.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 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E1D 3744 bytes
SHA-256: 722d90153d4711ce94b2ab56e8db6dcd2aa6a8b2fa6e6c60e08a0fa7f967a026
font_01_sfnt_off00006b3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B3E 5300 bytes
SHA-256: 297a8d290a11b40cf44a497517c67d10aaa97e8013365b617df6a0f480e63d81
font_02_sfnt_off00007d4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D4B 11104 bytes
SHA-256: d9c6435a8bfa4b3ac1e763c1dd5144dfec0540f67e0ab608214e38d2c43256f4

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