Malicious PDF — malware analysis report

Static analysis result for SHA-256 efdede4aecee8b3d…

MALICIOUS

PDF

48.8 KB Created: 2020-08-02 04:44:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8e0c6d4f9fd5a34ed09023c033138861 SHA-1: e89105308428ff1ae2b1721b596d183d561a5b3c SHA-256: efdede4aecee8b3d0485457ab151a517c34babc8a8e0674bb9dbeff0864ac1ae
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector at https://ttraff.ru/pify?keyword=autotune+in+garageband. This suggests the document's primary purpose is to redirect users to malicious infrastructure. The document body, though heavily obfuscated, contains this URL, reinforcing the malicious intent. No scripts were extracted, limiting the analysis of further stages.

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.ru/pify?keyword=autotune+in+garageband In PDF document text
    • http://files.chiefetchbergerfoundation.org/uploads/1/3/2/6/132696325/vawap.pdfIn PDF document text
    • http://files.theonealexyoung.com/uploads/1/3/2/3/132302764/fa06e.pdfIn PDF document text
    • http://files.bluemarlin3grancanaria.com/uploads/1/3/2/6/132681694/80d662ad70.pdfIn PDF document text
    • http://files.mcspg.com.au/uploads/1/3/1/8/131855992/5324397.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/1/0430/7861/5189/files/15536720236.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8080/0674/files/moviebox_ios_10._2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/33374625424.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4130/8319/files/31993102183.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/71299233386.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9373/8143/files/rexikoresopusofenumom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1903/5033/files/luvorasoxavixokugeziju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0521/3847/files/zukenunagugituduwad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3426/4231/files/jujokiwobudigudenato.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4829/6857/files/dogetizugebaxosigumav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3860/5461/files/purofuruzivibavetugus.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

Related samples 8

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_off00006bf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BF6 4912 bytes
SHA-256: 24d5e0fa318d1cda48047fd379c848de2e1e23343ce95b06c72f02a7d6f3d610
font_01_sfnt_off00007cb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CB7 10360 bytes
SHA-256: 2195c065c04f9bddc1f7d6e4be8b7e3a9798bc6b0e2cb52741973f71ece6ee2a
font_02_sfnt_off0000a069.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA069 16568 bytes
SHA-256: 3f8ab2d0dd01035a0516477c01324681448b3b74ca8b6fee773bed620f7f6ab7

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