Malicious PDF — malware analysis report

Static analysis result for SHA-256 92272847e413cdf0…

MALICIOUS

PDF

40.4 KB Created: 2020-08-04 00:28:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 877f29cdf3a861dcdd8f8468b2de94aa SHA-1: a92a98644215841a4c3c6d9b7dea0ce07b67c359 SHA-256: 92272847e413cdf0aab0de9e2facb55f69f47f96112d9f33fbb521508fd9ba10
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous embedded links, a technique often used for SEO poisoning or to direct users to malicious sites. One critical heuristic firing indicates a direct link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=best+pdf+reader+for+kali+linux'. The document body, though heavily obfuscated, also contains this URL, suggesting a lure to download a PDF reader or related content that ultimately leads to malicious infrastructure.

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.ru/pify?keyword=best+pdf+reader+for+kali+linux In PDF document text
    • http://files.psacollegecounseling.com/uploads/1/3/0/8/130874063/4844bd519b98.pdfIn PDF document text
    • http://files.polarcenter-bg.com/uploads/1/3/0/9/130970004/c40b681752.pdfIn PDF document text
    • http://files.keramaris.gr/uploads/1/3/0/7/130776822/lozipex_pidedit_retodagi_zedofi.pdfIn PDF document text
    • http://zolam.readingchristiannetwork.com/uploads/1/3/0/7/130740178/3653d.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/1/0432/4248/7972/files/dometic_penguin_ii_installation_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6888/2072/files/1117943140.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9289/2061/files/98207071567.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/87463685859.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3495/9256/files/66087782380.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1423/3000/files/59788795013.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7170/9092/files/zizasesape.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3321/5654/files/11217092280.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5338/3833/files/33338242872.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8413/6086/files/pidedifonixuvixob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0500/8293/files/97106525479.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0512/4516/files/25593075172.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9997/1999/files/battletoads_snes_loveroms.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 7

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_off0000614e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x614E 5216 bytes
SHA-256: 7e511a606cf12990fa9675f4496bc0e29cac50ac9990066afcdec84a3f52ba3e
font_01_sfnt_off00007322.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7322 9820 bytes
SHA-256: c5a92b2a601001dd950258a370b2dbb1cbca95577e396d87c6766b393bb4fad1

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