Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc072d4d89cebef5…

MALICIOUS

PDF

70.6 KB Created: 2020-08-05 23:43:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9ca5c0fb788c444aa56d8d3b10651c27 SHA-1: fc7e641c220ede685a5b60fd0646c365446395ee SHA-256: fc072d4d89cebef51d05c3671686ba8a211a52877db5a3054f97299db4e5301c
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=enigma+otiliei+pdf+scribd'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains the same redirector URL, reinforcing the lure. The ML classifier also strongly indicated maliciousness.

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=enigma+otiliei+pdf+scribd In PDF document text
    • http://files.thompsonsteamer.com/uploads/1/3/2/6/132695569/motokonafanin.pdfIn PDF document text
    • http://files.2018vote.us/uploads/1/3/1/6/131637150/jumujarujosudopakez.pdfIn PDF document text
    • http://files.funthoughtsonlife.com/uploads/1/3/1/4/131483361/wazapoziwezowi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7677/2250/files/vurodolirufevawurijusije.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15074065918.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2449/6286/files/global_offensive_reddit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bararilisubolubudikolumo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5540/7519/files/73114316070.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1221/7241/files/mastercool_mcp44_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0676/2903/files/77062873713.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7753/2822/files/29422462894.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4684/6107/files/96284394033.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6787/5221/files/commentary_bible.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ca00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA00 5360 bytes
SHA-256: 827ff1851e71cf4164dd1e8765d3a1a87a5e91819683cd1d1c4db83ff38e82cd
font_01_sfnt_off0000dc19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC19 10240 bytes
SHA-256: 8caa9efa40ea8d152fc4fe60a3f78b75b911fb1ff72b9aa13fd46cfc150844cd
font_02_sfnt_off0000ff30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF30 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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