Malicious PDF — malware analysis report

Static analysis result for SHA-256 be6a6211bf20f978…

MALICIOUS

PDF

37.3 KB Created: 2020-08-15 08:46:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f29b236fb93b07b7cf026b264d7ee5a7 SHA-1: 6af003431e6588249120605ff3c307eccbe75489 SHA-256: be6a6211bf20f97869c9dfafd5501519e1725418fed3b18fe503afa05f4bcaff
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.com, disguised as a driver download. The ML classifier strongly indicated maliciousness. The document body, though heavily obfuscated, contains URLs that are part of a link farm, likely for SEO poisoning to attract victims. The primary attack vector appears to be directing users to malicious infrastructure via a deceptive link.

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.com/pify?keyword=microsoft+natural+ergonomic+keyboard+4000+driver In PDF document text
    • http://sagixu.delaneydrywall.com/uploads/1/3/1/6/131606346/mijikexizova_puvofamilagewop.pdfIn PDF document text
    • http://files.qbhomepaintandsip.com/uploads/1/3/1/4/131453484/nezed-xutugu.pdfIn PDF document text
    • http://files.healingchorley.com/uploads/1/3/1/4/131437981/wogabixigelili-xefodojetibag-zewef-tosopizasatila.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/1/0430/1104/7575/files/32044957974.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8693/0329/files/plant_cryopreservation_a_practical_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85450973079.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4819/8556/files/39991185602.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5358/0439/files/53347226286.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3803/1518/files/guided_by_voices_awful_bliss.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/5827/0101/files/25773073386.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3988/2402/files/levopokebe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0110/1984/files/rudram_namakam_telugu_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7415/0809/files/xekibezanivodaba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9244/2264/files/11398045647.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 3

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_off00004658.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4658 5824 bytes
SHA-256: 616fe96fbb72cf1c588cd4a7b6cfea21e845e7f386f73ee6a5c86cde4fdc01dd
font_01_sfnt_off00005a1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A1F 9316 bytes
SHA-256: 0c55b730f0fe00e4ae4b9cd9985c1b93f4567639ff8f54b99b24aabd5d86df03
font_02_sfnt_off000079f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79F4 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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