Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ae4276770cba58a…

MALICIOUS

PDF

90.1 KB Created: 2020-08-06 19:31:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7d83e620a33792ab8e8eacb7ab18cd66 SHA-1: 13888847606406475e012889123defc64a536f13 SHA-256: 2ae4276770cba58a8c6d0ff1e8471dd2b14ee89ead6622ce671c0647632e15c3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a significant number of embedded links, identified as a link farm. One of these links, https://ttraff.ru/pify?keyword=anterograde+tomorrow+pdf+espa%25C3%25B1ol, is flagged as a malicious redirector. This suggests the document's primary purpose is to lure users into clicking malicious links, likely leading to phishing pages or malware downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.ru/pify?keyword=anterograde+tomorrow+pdf+espa%25C3%25B1ol In PDF document text
    • http://files.counsellingandpsychotherapy.com.au/uploads/1/3/1/4/131406352/9657312.pdfIn PDF document text
    • http://files.aletalederwasch.com.au/uploads/1/3/1/6/131607075/1219477.pdfIn PDF document text
    • http://kelege.justisville.com/uploads/1/3/1/4/131437423/509e03f0b.pdfIn PDF document text
    • http://files.freshcafeandmarket.com/uploads/1/3/1/6/131636988/nisobikodege.pdfIn PDF document text
    • http://files.historyleadership.com/uploads/1/3/0/7/130776120/zeletevubazoku-limanaduwix-wuwulixipiza-vadugoxo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3432/0794/files/15331875978.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5761/8850/files/lobapamorozejas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3426/4220/files/28089493686.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8005/5965/files/crisis_adrenal_pediatria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8918/2376/files/tobalifafojatoforodika.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/73121007565.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9569/4239/files/5709370544.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8466/7287/files/84824029422.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7427/3948/files/96493171293.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3731/0632/files/if_file_exists_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9954/6010/files/safokujazixiseditujamesut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5187/4466/files/calabozos_y_dragones_5_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5533/3027/files/goposaguruwisaremubinaf.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e536.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE536 4464 bytes
SHA-256: 2af17e5d514b85517e6ad59741257935db259678f318874e9d183fbee98b25df
font_01_sfnt_off0000f4ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4EC 5652 bytes
SHA-256: 835cee4f7b7a6a27a986b7d9c2946133b15c4cddaa280986a3327231f96f185b
font_02_sfnt_off000107e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107E0 3796 bytes
SHA-256: 6961a9cdb4e588615c299c3c01ece33708099aa1c415284ed8f74c137cbb4800
font_03_sfnt_off000116ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116BA 4448 bytes
SHA-256: 5e2967689c7c440ab7984837ddac1ac307533e5910c45cda8c8425b25f303da4
font_04_sfnt_off00012507.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12507 10564 bytes
SHA-256: bc0ac4812b2dceabc1a50ab3cde093c96cdda9eca823d73b6d3f95b9e76381c8
font_05_sfnt_off00014929.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14929 3616 bytes
SHA-256: 3e5ef452a5f3859fe0f3419d52ee8501eb4fadae5255761c6620df1a990112a1

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