Malicious PDF — malware analysis report

Static analysis result for SHA-256 82816885ddda0357…

MALICIOUS

PDF

34.1 KB Created: 2020-08-11 14:32:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e2d57223fee78d0830b95f511deaa742 SHA-1: c81e4c7024c0ce82be9571543b1770698230dff2 SHA-256: 82816885ddda0357d00eb7f812822dc6e8d6f84e2fe8182c16d05d99a8a3fde2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting an attempt to drive traffic to malicious sites. The document body, though partially corrupted, contains text and URLs that align with a lure for phishing or malware distribution. The primary malicious URL identified is https://ttraff.cc/pify?keyword=aha+take+on+me+piano+pdf, which is flagged as a malicious redirector.

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=aha+take+on+me+piano+pdf In PDF document text
    • http://files.shauneb.co.uk/uploads/1/3/1/4/131438557/sexujenugoxu_zorebipikivekip_zojezaxelenobap_derepifetuxo.pdfIn PDF document text
    • http://mivisu.thebeaverindustries.com/uploads/1/3/1/4/131409309/miwimiduxo.pdfIn PDF document text
    • http://files.crowdedbedcreations.com/uploads/1/3/1/8/131872096/jabemenule-mimibumak-tiletozutimeta-leravu.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/1/0429/8804/4442/files/74862163817.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9551/4535/files/malformation_anorectal_cours.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6566/1845/files/install_java_8_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9032/2342/files/3429907213.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1124/2144/files/xatesilenamoke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3293/5574/files/toduwuvisadoledako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56655156305.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3605/5454/files/arduino_rgb_led.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6489/3344/files/52799592571.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1503/5290/files/pikeru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8174/1976/files/nusebe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3637/6231/files/wowexilizamumi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1322/6139/files/fufopipiwo.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 6

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_off00004732.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4732 5028 bytes
SHA-256: d45201e4eb207e2f4a2ccc3fb6751d7dded80f44369b7c94c6ed818c227b26e8
font_01_sfnt_off00005826.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5826 10260 bytes
SHA-256: b2e12de878c084a8d040eb9e6b41b2e6481adb1a88e89fe3b15990a25a7c44f3

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