Malicious PDF — malware analysis report

Static analysis result for SHA-256 30435d69ce364ccc…

MALICIOUS

PDF

44.7 KB Created: 2020-08-20 23:18:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b1c400be87ae64577cb57b4b338229e1 SHA-1: 57f7043d664b5c23756a014138493ceab04ee220 SHA-256: 30435d69ce364ccc5ac391943bc976db9f4b95fa1e068de1091132873caf66d0
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, disguised as a 'becil registration form'. The document body and heuristics confirm the presence of numerous embedded links, many pointing to Shopify domains, likely part of a link farm to obscure the malicious destination. The ML classifier strongly indicates maliciousness. The primary attack vector appears to be social engineering via a deceptive form lure, leading to the malicious redirector.

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=becil+registration+form+2017 In PDF document text
    • http://buwaxun.liquidnitrogenphoto.com/uploads/1/3/2/7/132712336/3e6f135d76c7cd.pdfIn PDF document text
    • http://rasup.wisconsinwaterlaw.com/uploads/1/3/1/4/131409236/lijugamukuluduwaw.pdfIn PDF document text
    • http://files.broeifionydd.com/uploads/1/3/2/6/132682230/tidazadipowes.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/1/0428/9835/8432/files/kuvesagapixunijibofalase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5901/9933/files/61949938759.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3971/1655/files/budawamezo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6116/4697/files/23152486447.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9414/6200/files/27835955708.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1001/5910/files/73204202987.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5548/7905/files/30769772859.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7849/2062/files/4061914505.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3599/0936/files/mibutigawotugo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5706/0769/files/33224359555.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1055/5041/files/noginajuno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/3697/8850/files/80403844896.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5906/9599/files/40797091263.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 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_off000061cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61CF 5444 bytes
SHA-256: 706b5c4ffa1afcf853658882b0980f8f38ea26f87712800ee54588cd20ce5279
font_01_sfnt_off00007438.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7438 10516 bytes
SHA-256: f653b4f7dd9eeb0b2a62c16382a5b29d337f3d5293710c47549e69b6123bca17
font_02_sfnt_off000097fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97FD 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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