Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdd85efe2d281269…

MALICIOUS

PDF

44.4 KB Created: 2020-07-31 00:32:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8992fdccd0fdf3b09b7cc2ccd9269d90 SHA-1: db2ff2737fab543dce7690f32ef9fbd47cfe3a3b SHA-256: bdd85efe2d281269c60a2a736f12f8e901ec0abe465bad96e030b31fdd45a54d
202 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link and a mass external PDF link farm, indicating an attempt to direct users to malicious content. The presence of a visual download button further supports a social engineering lure. The document body is heavily obfuscated and unreadable, but the heuristics clearly point to a malicious redirection workflow.

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=the+human+machine+george+bridgman+pdf+download In PDF document text
    • http://files.cobaltcounselor.com/uploads/1/3/2/6/132682882/dfca1db518c.pdfIn PDF document text
    • http://files.km4kate.com/uploads/1/3/1/4/131409210/ba05194255.pdfIn PDF document text
    • http://files.littlesprouts.org.uk/uploads/1/3/0/8/130874566/dekaraladofare.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/1/0434/5970/7037/files/22561385237.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2738/1920/files/kejimanulikarimesefukej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8890/3325/files/xoximalebuzeza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5005/0460/files/40369361459.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9915/1768/files/56740504636.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7896/6691/files/22646675916.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8166/2613/files/lavegavezezulum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0976/7584/files/2743508840.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0369/9615/files/dexefotevusiwarujuja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7101/2006/files/74996025272.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5286/6463/files/towijunajinawi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4519/9777/files/dokotatemat.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000070af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70AF 5376 bytes
SHA-256: e84a72720ddc71b8338e7c8a0e9daa9a3b7e98b8183afdf18279f4fb33c23c6e
font_01_sfnt_off000082d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82D0 9868 bytes
SHA-256: 26f598f64e780194705ee1e10c7be4fbcf8f41e8e65b9b85c397beb902e1bc5b

Open this report in the interactive analyzer, or submit your own file for analysis.