Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae2a1763d79b0e28…

MALICIOUS

PDF

40.6 KB Created: 2020-08-20 06:54:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4a45e6b3038cc517e73c92a6b0912066 SHA-1: 31d9e6799a1a42944b2d235c0815bda3c693752d SHA-256: ae2a1763d79b0e287df23e3e68ec12e76343499155fe645aa19e3836db1ef8a5
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1204.002 Malicious Link

The PDF contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=vpn+phone+free'. The document body also contains this URL and other Shopify links, suggesting a link farm or phishing lure. The 'SE_CLIPBOARD_COMMAND_LURE' heuristic indicates the document may also instruct users to interact with command-line tools, further increasing the malicious intent.

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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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=vpn+phone+free In PDF document text
    • http://files.ps142m.org/uploads/1/3/1/4/131437530/6377fb0da2.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/1/0434/7196/2265/files/tonawikurisi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/7042/7031/files/lead_acid_battery_chemical_reaction.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/81108552740.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8288/2980/files/23340067992.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2574/4547/files/87140399914.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5723/3576/files/zuwud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0885/2117/files/pavijupukokigimabigi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4170/2567/files/70388634816.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5153/2963/files/cambridge_exams_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2462/9411/files/bekudonoxazoladide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5906/7550/files/34414282919.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7852/4831/files/85751583617.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/4263/9765/files/micelles_formation.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_off0000636a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x636A 4536 bytes
SHA-256: e98b0c3bf3f279267996cccdb972f3741afbd57a43930010bda581729225ffd5
font_01_sfnt_off000072d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72D1 10296 bytes
SHA-256: 01744da479724c27f9d7459f8eea36d7b4d8b6df6be1d4fcd385645c63ae65b7

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