Malicious PDF — malware analysis report

Static analysis result for SHA-256 ecfacaad0442b7fc…

MALICIOUS

PDF

62.8 KB Created: 2020-08-19 15:42:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: df59d7020aac1167231cbda486055169 SHA-1: 2d38bc5d02be31d5036b12b084fd97d3831f0f10 SHA-256: ecfacaad0442b7fc2fcc2da9ff638199d69b8dec29ec11c262edc858440d98d8
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a link farm pointing to known malicious redirector infrastructure. The primary malicious URL identified is https://ttraff.com/pify?keyword=mayakka+devi+chinchni+song. While the document body is largely unreadable due to encoding issues, the presence of these links strongly suggests a phishing or malware distribution attempt.

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=mayakka+devi+chinchni+song In PDF document text
    • http://files.pbadesigngroup.com/uploads/1/3/1/4/131437724/fulizuzibepi_felularopi_gizuburokir.pdfIn PDF document text
    • http://kepop.finsoc-fms.org/uploads/1/3/2/7/132740649/7355520.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/5578033559.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9825/0141/files/occupational_therapy_in_mental_health_a_vision_for_participation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7089/7824/files/gurazijakigafifere.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8406/2622/files/65487320290.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lewajoranuputefikilos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9812/1119/files/behavioral_theories_of_motivation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5297/1685/files/chrome_viewer_disable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8038/4674/files/nisex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5624/1557/files/fodufavuketovofi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mubexuv.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_off0000aae4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAAE4 5304 bytes
SHA-256: 0385e39e26ab6f0eb9901707803a476adf781b05bede812fb5fec57cd3342599
font_01_sfnt_off0000bd00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD00 15480 bytes
SHA-256: 242b7697cb4fc6b45a45c7f513deedf6a3464d622055db3667566cda9421b007

Open this report in the interactive analyzer, or submit your own file for analysis.