Malicious PDF — malware analysis report

Static analysis result for SHA-256 61448de1a8e23ccc…

MALICIOUS

PDF

71.1 KB Created: 2020-08-03 09:16:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 927c08c5530c96a44a64084d2f8f36c8 SHA-1: 3839163a5f537c27bc37fa78e7935a488199d4bf SHA-256: 61448de1a8e23cccd5412c0cf7467a96cc65f8acb8755c0226172829e8289c63
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple links, including one to a known malicious redirector at 'https://ttraff.ru/pify?keyword=discord+mod+bot+copy+and+paste'. This redirector likely leads to a phishing or malware distribution site. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to lure the user into clicking it. The ML classifier strongly indicated maliciousness.

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=discord+mod+bot+copy+and+paste In PDF document text
    • http://files.shineeventdesign.com/uploads/1/3/2/6/132695273/9822435.pdfIn PDF document text
    • http://files.allofficefurnitureltd.com/uploads/1/3/1/4/131438464/2867456.pdfIn PDF document text
    • http://files.rugaruejerky.com/uploads/1/3/1/3/131383959/pegisegejadexobuxu.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/1/0437/6179/5230/files/22944360331.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6544/9371/files/nobofatilisosubived.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3720/3364/files/aarp_games_solitaire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3210/1543/files/52279127097.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5144/9496/files/makupefabesuku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6619/5106/files/22460220771.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3826/7809/files/49931335352.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7014/2117/files/29998722388.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5179/5107/files/2584536090.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6799/8359/files/28306494397.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 6

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_off0000c474.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC474 5428 bytes
SHA-256: 62b8c61f437587397d57e424383e94460729234c39d02e5f6c7e75aa9536b938
font_01_sfnt_off0000d6cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6CC 3488 bytes
SHA-256: 8faaa159215836f5498d61edea98657adaf17d42576c97c50cb69a6c0b4c144e
font_02_sfnt_off0000e4f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4F1 13216 bytes
SHA-256: 183ad4b117584836bf79313adc4b245125bd67cc8ade2865b3743e700a115f21

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