Malicious PDF — malware analysis report

Static analysis result for SHA-256 874c07b6ebaba018…

MALICIOUS

PDF

65.1 KB Created: 2020-08-04 19:50:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: abed10ef6ac4b9f2cd0b5d2bcd856037 SHA-1: 98c235e1fa78c33d2886ecef211918491d2f0ae2 SHA-256: 874c07b6ebaba0188555a5fab0b5977718f91bffb6102d07ca9d93b9cbc5ef06
202 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, all pointing towards a phishing or scam attempt. The embedded URL 'https://ttraff.com/pify?keyword=ielts+writing+task+2+pdf+simon' is a primary indicator of this malicious redirection. The document body, though heavily obfuscated, contains the same URL, reinforcing its role as a lure.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=ielts+writing+task+2+pdf+simon In PDF document text
    • http://files.greenrabbitpress.com/uploads/1/3/2/3/132303245/javiwepanu_vepuzoletaro_sivit_zefemak.pdfIn PDF document text
    • http://files.susannebrandstaetter.com/uploads/1/3/2/6/132695990/gamozin-nixomaj-papew.pdfIn PDF document text
    • http://files.icellw.com/uploads/1/3/2/7/132740250/37c24f.pdfIn PDF document text
    • http://files.pvvikingfootball.com/uploads/1/3/2/7/132712614/belobekuz_xamawilufovafok.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/1/0433/0687/7080/files/dofupuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7835/2034/files/54784134255.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5905/9615/files/waximofijefires.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9762/9596/files/binivoxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6710/4668/files/class_sr-_only.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2674/1405/files/66238326712.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4121/6929/files/82877905222.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3846/6467/files/47281457768.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/puneson.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vasopamomakazemujavinis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4737/9356/files/gorabevejewafuti.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c04f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC04F 5588 bytes
SHA-256: 8e58e97b5e982bc0158723f8d6bca68bad4b859da9b617b73670acf0bd5b7afb
font_01_sfnt_off0000d352.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD352 10584 bytes
SHA-256: 89de07e6fbcfef38f778a82776c72d09be16584b02ce4a9b254b4acbb5251231

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