Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9f560687067a6d0…

MALICIOUS

PDF

45.3 KB Created: 2020-08-24 07:01:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 75b67f423e76f0499dae7f5798833ae0 SHA-1: 17249768167832727b943cdf95034f8425748189 SHA-256: b9f560687067a6d0fb600725572791783c465497f44a491cd190f9fff0eac766
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious domain, disguised as a worksheet. The PDF also contains a large number of external links, many of which point to Shopify domains, suggesting a link farm or SEO manipulation tactic. The primary malicious URL is ttraff.ru, which is used to redirect the user to potentially harmful content.

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=types+of+sentences+worksheet+2nd+grade In PDF document text
    • http://files.mileslens.com/uploads/1/3/1/3/131383493/toxulagikokapewigaf.pdfIn PDF document text
    • http://moben.georgektan.com/uploads/1/3/0/7/130739113/gewidoj.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/1/0460/2416/3487/files/madden_19_rookie_ratings_spreadsheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/6500/3423/files/26110896402.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8427/5100/files/free_download_edit_files_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7827/1641/files/75637649562.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6373/6475/files/shyam_baba_bhajan_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5679/0695/files/25465446654.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1054/6071/files/workout_at_home_without_equipment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2873/2314/files/13156709675.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4565/0586/files/kukoruwafosevun.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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_off00005d20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D20 5724 bytes
SHA-256: 0d77ded509d963915f2866d5ac8881ca8714295d30c32cd9b3c25f02b12db5c7
font_01_sfnt_off000070ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70BA 10088 bytes
SHA-256: 2e717c368c31a4886c7ca100b52b2820d3788d09cc258450028ea9dbcc547f7d
font_02_sfnt_off00009363.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9363 16116 bytes
SHA-256: edc33fe94617b35fa5734827a91efdc9665031ac3a5a8b8018a6396f4204b3d2

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