Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a0d75e2586ac760…

MALICIOUS

PDF

108.2 KB Created: 2020-08-24 03:50:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6379e23c61bb5bcedaccf1cd19a097b8 SHA-1: c49bc16d18be8755f7b046aff3cf52ea3cbcc1c1 SHA-256: 2a0d75e2586ac76019d4011363411fcda7a7ed8f993acd1f678d6442becf95f7
242 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. Additionally, it exhibits a PDF link farm pattern, suggesting an attempt to manipulate search engine results or distribute multiple malicious links. The 'SE_PAYMENT_REDIRECT_LURE' heuristic indicates a common business email compromise tactic. The document body, though heavily obfuscated, contains the malicious URL, reinforcing the attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=interim+budget+2019+summary+pdf In PDF document text
    • http://files.sacredspacepainting.com/uploads/1/3/1/8/131858661/moges.pdfIn PDF document text
    • http://files.minihorsedriving.com/uploads/1/3/1/1/131164573/zuwidatam.pdfIn PDF document text
    • http://files.thenesthudson.com/uploads/1/3/0/7/130776535/7956357.pdfIn PDF document text
    • http://files.rayewood.net/uploads/1/3/1/0/131070161/jemefawodogejofud.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/1/0435/3848/1311/files/40247663677.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5535/7852/files/21923900537.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3957/1616/files/gungeon_arcane_gunpowder.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5081/8969/files/40688122748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9716/9824/files/pdf_to_word_free_download_nitro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7396/1110/files/rizujosena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6785/0390/files/91923322402.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6214/0840/files/xuvubarobazezejiwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0495/2735/files/18375447030.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51108684678.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9587/3949/files/sokukeki.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00016ae3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16AE3 5992 bytes
SHA-256: e8656689b129fa9409c7167cf41669dd21d9a37efd96d3208997515e4c4ad2bf
font_01_sfnt_off00017f2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17F2C 10576 bytes
SHA-256: 846f20d30ff0a860b28a133836a5eef8010e42231180ffa0c2b2ae117c0b3cb0