Malicious PDF — malware analysis report

Static analysis result for SHA-256 9add70d60f734a0b…

MALICIOUS

PDF

34.1 KB Created: 2020-08-03 09:56:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f04b35231ae23bc4f386e6e591617b86 SHA-1: 5c29055aa419f72265b8810231742f199ac3ff52 SHA-256: 9add70d60f734a0b2e0513fdd471d5bda97b1111a27ad33874e384f7a92e2f2d
194 Risk Score

Malware Insights

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

The PDF was flagged as malicious by an ML classifier and contains a large number of embedded links, many pointing to external PDFs hosted on Shopify. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is likely the primary malicious payload delivery mechanism. The document body contains garbled text and a URL that appears to be part of the SEO poisoning or redirection scheme.

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.cc/pify?keyword=molana+masood+azhar+bayan+mp3 In PDF document text
    • http://files.bsquarepro.com/uploads/1/3/0/8/130814877/sezilezazodud.pdfIn PDF document text
    • http://files.olibarnewrochelle.com/uploads/1/3/1/3/131398498/wexavekov-xopur.pdfIn PDF document text
    • http://files.lichunsu.com/uploads/1/3/1/8/131856991/1870506.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/1/0431/6381/2002/files/29358630515.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8411/8171/files/rilojiramumatemadi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8425/9231/files/the_luck_you_got.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57148414383.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5712/7336/files/rectangular_prism_calculator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7455/0950/files/13285398549.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6426/2818/files/bafitizute.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3468/1250/files/54468141278.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3110/9540/files/fanugadoxozazalabuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0087/8488/files/celf_5_scoring_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5269/5703/files/bekowebaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7249/5524/files/letirurusagebegomutaxene.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 7

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_off000047da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47DA 5660 bytes
SHA-256: 373f3ba6b3d80c255c4061ae46ffb1f0ac5ad13590671ce922edb04ca04c6417
font_01_sfnt_off00005b0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B0E 9580 bytes
SHA-256: f26f83f8d588e5d37d4b783537a90789528408ab4758ddfea68a440de007d53c

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