Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad645b93ae5888a9…

MALICIOUS

PDF

56.7 KB Created: 2020-08-15 03:36:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 628e0c814d870ebd1d5cea7b9f0cf992 SHA-1: f43401aef3014f79bb5f2bfa87be490f8573dc77 SHA-256: ad645b93ae5888a9185d17da713d854ac22834a93740c77c4a8e02c207f4826d
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body and heuristics suggest a lure related to database templates or file conversion, aiming to trick users into clicking the malicious links. The primary malicious link identified is https://ttraff.ru/pify?keyword=access+inventory+database+template+2010, which is likely used to redirect users to a compromised site or a phishing page.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=access+inventory+database+template+2010 In PDF document text
    • http://gemuzife.bibletruthfordeaf.net/uploads/1/3/1/6/131636725/7046512.pdfIn PDF document text
    • http://files.theprofbodyforum.org/uploads/1/3/1/6/131636845/gufifoja-dizidi-pefijazal-kajep.pdfIn PDF document text
    • http://files.tldrversion.com/uploads/1/3/0/7/130739916/7475644.pdfIn PDF document text
    • http://files.kmdschool.org/uploads/1/3/0/9/130970003/1726420.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/1/0436/2646/3385/files/pdf_to_word_converter_download_free_full_version_windows_7.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7405/9424/files/besisolazolivomepigurelu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3033/8966/files/panasonic_dmr_ez48v_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0769/7305/files/windows_10_usb_bootable_iso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6535/2093/files/53374454969.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8168/6439/files/time_and_work_shortcut_formula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6470/4662/files/gepevimag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8360/3876/files/arranged_by_nelson_riddle.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7214/4038/files/tituwe.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 5

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_off00008ff6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FF6 5624 bytes
SHA-256: 7e9b4906f2f0c76e4dec52513d7d47b04a9275e405df1973921d0b39b643137d
font_01_sfnt_off0000a2f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA2F5 10604 bytes
SHA-256: 50977e0bbdbb1235f8032570c5f0a80f4de59858e50179245e887ea1554df02c
font_02_sfnt_off0000c737.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC737 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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