Malicious PDF — malware analysis report

Static analysis result for SHA-256 c70c219121cccb18…

MALICIOUS

PDF

42.0 KB Created: 2020-08-10 14:21:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f20bf6fea6b28b39facf683be409040e SHA-1: ba5a11b26e970c85b4e10376377c0a69d95bb44f SHA-256: c70c219121cccb18bbd07b22dd51f5b74caec8c0b0de4db07ee303276bdae19e
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with one identified as a malicious redirector. The ML classifier also flagged this PDF as malicious. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=centre+songhai+pdf', which is a known malicious redirector. The presence of numerous external PDF links suggests a link farm or SEO manipulation tactic, potentially leading to malicious content.

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.cc/pify?keyword=centre+songhai+pdf In PDF document text
    • http://mizul.melissavanepps.com/uploads/1/3/0/8/130813612/romulufubegexotaxufu.pdfIn PDF document text
    • http://files.mywholelifeisshirts.com/uploads/1/3/2/6/132696029/6357115.pdfIn PDF document text
    • http://vavarezu.raffaelecassina.com/uploads/1/3/1/0/131071164/b5f6c.pdfIn PDF document text
    • http://files.polyroidcattery.com/uploads/1/3/0/7/130775830/juxojev.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/1/0434/7707/4086/files/rogifug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7869/7631/files/5000_followers_pro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4061/3286/files/48403108025.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8625/9100/files/72624118778.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6916/1110/files/the_psychology_of_esports_a_systematic_literature_review.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/12319118289.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99237037604.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3469/8147/files/39349468999.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2677/5196/files/7176616535.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0131/5491/files/1770368305.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8831/3506/files/gadavomunijijatuzavifek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8110/5562/files/81643938542.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 5

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_off00006594.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6594 5176 bytes
SHA-256: cdbf7e8d08562fda257e0b7afed9f3ed3ae3727a9c9762d43681211a6c2385fb
font_01_sfnt_off00007725.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7725 10500 bytes
SHA-256: 74568a967c89eb8f0be3401cddd13b13981f13589e01933477b1d27f1f9b8aa8

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