Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f05b84ace30d0d9…

MALICIOUS

PDF

33.3 KB Created: 2020-08-16 23:42:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1d0d6930b076d01060f4700fccb53bc5 SHA-1: 3bd12742f209ba6d788f2fe5e04a0b12c2a2e751 SHA-256: 2f05b84ace30d0d9c28084a2767a083eab30ae09e8bb2bdea3978a5598bfe4a3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF document was flagged by a machine learning classifier and contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=bansuri+song+ringtone+free', which is likely used to redirect users to malicious content. The presence of a large number of external PDF links suggests a link farm designed to manipulate search engine results or distribute further 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=bansuri+song+ringtone+free In PDF document text
    • http://files.everythingconnects.org/uploads/1/3/0/7/130776393/4707946.pdfIn PDF document text
    • http://files.root2seedonline.com/uploads/1/3/2/6/132695387/7634264.pdfIn PDF document text
    • http://nonowola.cconsultingsa.com/uploads/1/3/2/7/132740362/6066127.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/1/0428/9835/8432/files/loxidunadubufurepetiverox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6701/5335/files/bupamutise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7320/7446/files/asap_mob_lord_never_worry.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1020/3556/files/fixorabunoziraxazuriz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8617/6665/files/82454065477.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5358/0441/files/94760845860.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7998/1470/files/wiwunad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1682/2692/files/revirilasan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6341/9814/files/4726512363.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1829/6232/files/90960012209.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5650/4744/files/vilatorumowomurunedop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4556/0220/files/causes_of_social_media_addiction.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 2

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_off00004660.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4660 4952 bytes
SHA-256: 45805029fa96f4e4f7a8f645488c34f2f2097b392025fad8686d0557ca7719a5
font_01_sfnt_off00005745.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5745 9908 bytes
SHA-256: 5c2649610a11dfacd00fe91d18dd9aedf30ea5588db2ccd1042151f7358ae538

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