Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa2f310a6759ed1f…

MALICIOUS

PDF

35.9 KB Created: 2020-08-04 05:22:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 107fac87244bda01fce2cb1bd71a2279 SHA-1: dfe3b41634bb0f3150c409af0fa0ab5d582a3e14 SHA-256: aa2f310a6759ed1f3aac065efec948b2248d6e36accaeeaa6e4c7600be5e4a87
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with one specifically pointing to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body appears to be obfuscated or corrupted, but the presence of the URL 'https://ttraff.ru/pify?keyword=baboning+kitab+primbon+pdf' within the document body and the PDF link farm heuristic suggest a phishing or redirection attack. The primary goal appears to be directing users 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=baboning+kitab+primbon+pdf In PDF document text
    • http://files.spacentral.net/uploads/1/3/1/8/131871909/7295241.pdfIn PDF document text
    • http://files.jacobicpa.com/uploads/1/3/2/6/132695602/2811364.pdfIn PDF document text
    • http://files.apexcoachingsolutions.com/uploads/1/3/1/4/131437889/5530266.pdfIn PDF document text
    • http://files.genesisoutdoorservices.com/uploads/1/3/1/4/131437615/3467b6c691.pdfIn PDF document text
    • http://files.twelve2outdoors.com/uploads/1/3/0/7/130740053/7f71d1b52415b54.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/1/0432/6470/4662/files/52971057883.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8517/5713/files/27191535358.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0246/9285/files/nudovararal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2861/9168/files/bulojosovave.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6341/0845/files/26310054466.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1604/5222/files/28483540294.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9807/1450/files/tusabubu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7079/9510/files/zoxota.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6107/6375/files/12955272724.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6703/1200/files/leroner.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1329/7560/files/xogadexewemuzulefo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7426/3963/files/38120656232.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_off00004e88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E88 5404 bytes
SHA-256: 1d5383c9de8800259867d079d5298a7484c9edc1f6c4534bf33ee72a46f79b1a
font_01_sfnt_off000060d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60D8 9948 bytes
SHA-256: 4919f8d5d8a1b19fa22e1bc19989d6829ac8e5ef8b979f60469f63e28b44ae37

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