Malicious PDF — malware analysis report

Static analysis result for SHA-256 b80b7913a4a62170…

MALICIOUS

PDF

44.3 KB Created: 2020-07-27 08:55:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 65d83399443df33a698e7609e0e8c0d9 SHA-1: 82198db7da6b439683166ec8c2a817900d307f45 SHA-256: b80b7913a4a62170e4a85a69381e6fd13140e141e4018ecab504fc164d6bf62d
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a 'PDF SEO Link Farm'. One of these links points to a known malicious redirector, 'ttraff.cc', which is likely used to obscure the final destination and potentially deliver malware or phishing content. The document body, though heavily obfuscated, contains text related to Android call issues, suggesting a lure to trick users into clicking the malicious links.

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=android+can%2527+t+answer+incoming+call In PDF document text
    • http://files.heatherleeanndesigns.com/uploads/1/3/1/4/131482884/946513.pdfIn PDF document text
    • http://files.reseeworks.com/uploads/1/3/0/7/130739891/banirowirexuzolis.pdfIn PDF document text
    • http://files.melissamasonphotography.com/uploads/1/3/1/6/131606174/pimefivanat-bobazalajo-wemilifes.pdfIn PDF document text
    • http://files.resonant-bodywork.com/uploads/1/3/1/4/131437930/xalozabajuzo_fazigelidumimit_kesufalurud.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/1/0433/3414/0056/files/firexujamesutemizilej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3098/6400/files/lifolafebonolona.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4506/8699/files/31452214676.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8068/6497/files/satapivepafawipibabu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1616/7328/files/wivipabinezugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4651/0504/files/85141019318.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5417/7185/files/siwat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0744/2072/files/rasudevenugipisuwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0548/3942/files/3197919542.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2073/0011/files/sonuguxatujukas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6394/3067/files/47793323804.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5179/5107/files/73067551309.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8524/1245/files/98267683929.pdfIn PDF document text
    • https://forums.androidcentral.com/showthread.php?t=463326&s=10b7d3eb8d396bdf2d7e8b1fce0dce33In 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
    • https://forums.androidcentral.com/showthread.php?t=463326&s=10b7d3eb8d396bdf2d7e8b1fce0dce33In 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007007.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7007 5164 bytes
SHA-256: 1f04eecb2942926d651f06551ef5f569b65133c17c440eda12009d7ba8f9e854
font_01_sfnt_off00008187.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8187 10108 bytes
SHA-256: d5afa14783c76e054dab56c85dff8ea876e6bdd575a80066cbf3ebde2ebc378a

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