Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d3664e9b033ceda…

MALICIOUS

PDF

44.2 KB Created: 2020-08-01 06:46:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6847ee142597d9ed83a218b71433cb00 SHA-1: ec59e46835e643ff813962ca2dce88c65dfcefc6 SHA-256: 7d3664e9b033cedab93198912754cf0c4813ab56568d4a3cad910492b0e9c46f
202 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a game download, aiming to trick users into clicking it. The ML classifier strongly indicated maliciousness, and the presence of numerous links to external PDFs, some benign and some unknown, suggests a link farm or redirection strategy. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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.com/pify?keyword=digimon+masters+online+download In PDF document text
    • http://files.pianowithlisa.com/uploads/1/3/1/4/131406403/8421961.pdfIn PDF document text
    • http://files.intoutuotni.com/uploads/1/3/0/7/130738614/rijepobavepawe.pdfIn PDF document text
    • http://files.christinaedmondson.com/uploads/1/3/1/3/131397971/xususipabanasab.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/1/0428/9835/8432/files/xakikalimakimoxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7805/6091/files/45639626850.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9032/2335/files/lokefixir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/11085861466.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zurutadodusabexefiba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5314/6517/files/jipiwineb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8531/5737/files/bixepe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7743/4525/files/68397135961.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3374/7878/files/39525387776.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4854/3142/files/zatade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7316/6757/files/65900693183.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8949/4177/files/27590272610.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4914/0902/files/31728524644.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 5

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_off00006fc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FC0 5236 bytes
SHA-256: 422807dbd42bb30d310cf1226429b571acf86d19ebc3cadde50078fd9922543c
font_01_sfnt_off00008188.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8188 10100 bytes
SHA-256: 1bb0db1b69291c0f5f1eafcfbc9509c96e068e44a9943093e34dd2108f803a4e

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