Malicious PDF — malware analysis report

Static analysis result for SHA-256 271fef9602bc59ab…

MALICIOUS

PDF

45.7 KB Created: 2020-08-21 05:30:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f55026f13a24a0f6a8bbb0c739ae87e5 SHA-1: 303c39a05cfa5a576f5ae85db8a595fef1bb8089 SHA-256: 271fef9602bc59ab48ad1719ec73607d72d3423964ddb5c97277ecfbe9ca8425
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file contains multiple embedded links, with one heuristic identifying it as a malicious redirector. Another heuristic flags it as a link farm, suggesting an attempt to manipulate search engine results or distribute malicious content. The presence of a 'download button' lure further supports the malicious intent. The primary malicious URL identified is https://ttraff.ru/pify?keyword=cartoon+ki+picture+video, which likely serves as the initial point of compromise.

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.ru/pify?keyword=cartoon+ki+picture+video In PDF document text
    • http://files.dramaturgiesofparticipation.com/uploads/1/3/0/7/130775448/jaboxur_lokakor.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8181/0595/files/88501484581.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3061/8020/files/44598594190.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5401/3336/files/10956603003.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9026/4742/files/wivinomatefazemiguvegi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5175/2344/files/67859860379.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6616/2341/files/15092671525.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9368/0547/files/la_sonnambula_bottesini.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1754/3588/files/reregikegobifemosebemulo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7195/3301/files/lukupimilijuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5697/1432/files/nosafikutiwopabimizijew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1637/2892/files/50683402818.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000068e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68E7 4888 bytes
SHA-256: 70176750b25a8ec1ee54d9942dbe9df8be16ef16f2e96eacf766d6024f4c898d
font_01_sfnt_off0000799a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x799A 10148 bytes
SHA-256: 68d594dc1f87fb64c36cebca543e228adbb07081bcd65a6fede75280b5089529
font_02_sfnt_off00009c46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C46 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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