Malicious PDF — malware analysis report

Static analysis result for SHA-256 2daf2e326533315f…

MALICIOUS

PDF

38.4 KB Created: 2020-08-06 14:18:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 367b40c94008cba52c5af8bdcd3f3555 SHA-1: ab21906b567e82b52e79b3de1bff4bc3a9c9d823 SHA-256: 2daf2e326533315f57c7f17803d74f8bd1cbfe8faaf3668950ad0fec165d06a4
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector at 'https://ttraff.com/pify?keyword=acer+aspire+one+zg5+manual+pdf'. This indicates a phishing or scam attempt, likely to redirect the user to a malicious site. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains text related to the Acer Aspire One manual and the malicious URL, reinforcing the lure.

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.com/pify?keyword=acer+aspire+one+zg5+manual+pdf In PDF document text
    • http://tefitane.swannanoavet.com/uploads/1/3/1/3/131383544/vadewofedebalev-ludijefujejiwok.pdfIn PDF document text
    • http://files.schombergcommunityfarm.ca/uploads/1/3/1/3/131380868/c3c31a37f78ec7.pdfIn PDF document text
    • http://files.talking4health.org/uploads/1/3/2/6/132681877/8b1d1c7fb3bd25.pdfIn PDF document text
    • http://files.vrm365.com/uploads/1/3/1/3/131398197/6f7e5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9202/6271/files/dogideketonos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6163/1389/files/93293717224.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7235/6509/files/rikododovefipikalubovor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5820/8674/files/kutaluwegesizokuvowure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4211/1650/files/gudemodukeralo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1313/5774/files/55425897527.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5365/2895/files/toro_kohler_6._75_149cc_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5816/6941/files/chicken_soup_for_the_soul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0827/0244/files/rogekinokaxedatigi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3264/9636/files/89363325815.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 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_off00004a8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A8A 5440 bytes
SHA-256: 039dd15ebae5ef6b86f5c113008dba562549a1afeece134d62cfaddc27450588
font_01_sfnt_off00005cef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CEF 9788 bytes
SHA-256: 5b8c02dad2c41aee43bd1e6e167f00e14503dc97a2870766aa63158100b52451
font_02_sfnt_off00007e91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E91 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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