Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d6613d10b078915…

MALICIOUS

PDF

42.7 KB Created: 2020-08-21 11:57:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 97361de779cae8992a7c865d5aa962ed SHA-1: eb0c2bc1d88bda3c33681ee2371eafd6eb9b02cb SHA-256: 5d6613d10b0789151692dce5175c9da0147e752d3b73bb1b7b971544a32a9a53
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded links, many of which point to a redirector service. The primary lure appears to be for an 'Indycall app for android', directing users to the malicious URL https://ttraff.cc/pify?keyword=indycall+app++for+android. This suggests a phishing or scam attempt designed to lead users to malicious content. The ML classifier strongly supports the malicious nature of this PDF.

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.
  • 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.cc/pify?keyword=indycall+app++for+android In PDF document text
    • http://defori.eastshorechurch.net/uploads/1/3/0/9/130969873/b550b.pdfIn PDF document text
    • http://files.dollysgallery.com/uploads/1/3/1/3/131383207/3ad79961b0.pdfIn PDF document text
    • http://vivame.harrisonandellison.com/uploads/1/3/1/6/131606490/gibonuvireja.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/1/0434/4581/3414/files/lupos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0679/3627/files/54375395958.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0360/8231/files/83820569502.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/79265304831.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2756/9576/files/rufene.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bizem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8680/7201/files/zubejupelupasexivejebasuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1918/7862/files/casting_call_poster_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1541/3661/files/rogovosuwopuvifuwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2175/4787/files/91818119347.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4777/8469/files/36922746906.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2010/7428/files/42250590459.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6888/3097/files/kinulonad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8095/7598/files/metikerorufagavikenev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7868/0727/files/arduino_genuino_101_datasheet.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 2

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A0A 5012 bytes
SHA-256: 65f38cd8d0b88b30289aae1cf1a00e3225c706072646eb0231282771abdcd9d5
font_01_sfnt_off00007b24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B24 10120 bytes
SHA-256: f0c6cf459886426f934f520b43ea1c4e2788a44a769bd8c5141e621bce67ae30

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