Malicious PDF — malware analysis report

Static analysis result for SHA-256 afba72f646e1f693…

MALICIOUS

PDF

47.0 KB Created: 2020-08-20 05:56:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7589c8830b63bb1d312ec0dd7efd1717 SHA-1: ebcc1e39cd929f9d27a038d3354325b3abd31407 SHA-256: afba72f646e1f693359ad22577e509b975f96aace1f2bccc51e30632f9e0874c
202 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious intent, including a link to a known malicious redirector and a link farm. The document body, though heavily obfuscated, contains a URL that is also flagged as malicious. The presence of a 'download button' lure further supports a phishing or social engineering attack pattern. The primary malicious URL is https://ttraff.cc/pify?keyword=synaptics+ps%252F+2+port+touchpad++windows+10, which redirects the user to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=synaptics+ps%252F+2+port+touchpad++windows+10 In PDF document text
    • http://vumivof.finstofeatherstaxidermy.com/uploads/1/3/0/7/130739275/ae2933ec624.pdfIn PDF document text
    • http://files.everydayevents.us/uploads/1/3/0/8/130874010/pebonurisoza.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/1/0431/6980/8535/files/21707238392.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8535/7463/files/1131745341.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8946/1410/files/29544499473.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1016/2837/files/35372866831.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8249/7701/files/gebobovufesawurokewum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7407/6315/files/95302122013.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7451/9201/files/68589927355.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/37687758373.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5537/3720/files/desekajurolede.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 1

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_off00006c78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C78 5788 bytes
SHA-256: c129f611bec68cf840a55212ec48c7fb1cfd61d2599a0f4b4b4ccd8090954b8d
font_01_sfnt_off0000803d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x803D 15316 bytes
SHA-256: f98bd51bf3f0ad8ddfbdac996fd71b74b9c45bcdff7dbe7b8ca03696b48a6b6f

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