Malicious PDF — malware analysis report

Static analysis result for SHA-256 2902c95a1109e42b…

MALICIOUS

PDF

43.4 KB Created: 2020-08-24 08:14:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2fbd70babbed2d2ffe5e31cb3ae9ca94 SHA-1: 81478acf104195050e52cf6cf217fcb396d3e540 SHA-256: 2902c95a1109e42bdcfa07fba51e263515c936a44c82e557fde6a70f926175eb
194 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.com, and a large number of embedded links to external PDF files, many hosted on Shopify. This indicates a likely attempt to drive traffic to malicious content or phishing pages. The ML classifier strongly flagged this PDF as malicious, supporting the observed link farm and redirector behavior. No scripts were extracted from this sample.

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=imo+video+call++please In PDF document text
    • http://files.cloudcatchermedia.com/uploads/1/3/1/4/131437172/mijizav.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/1/0432/0159/3505/files/11714895094.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/6756/8291/files/buzejonoxuvutemazekulutef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1607/7991/files/kenep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5279/2982/files/nogukirov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7438/8119/files/dj_audio_songs_telugu_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7365/9290/files/35119242163.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6963/5746/files/putufuwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0458/1346/5254/files/31377001575.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/32950145126.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7656/7711/files/7945522436.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7784/2584/files/95108141547.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 1

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_off00005643.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5643 5120 bytes
SHA-256: 8bab99e185071302f6a4458f62a6f4819eaa826b95f14bfa8ed6cf2297d2c57c
font_01_sfnt_off0000679d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x679D 10484 bytes
SHA-256: d5ed77b410c8ba9c8b29285cacffcb82707524159b3803a8c55f1a4d68e0cca1
font_02_sfnt_off00008b99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B99 16248 bytes
SHA-256: a75c19cb4705f41c978fc0d44fd89890753b832f2378094bceb28796b9bce1f5

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