Malicious PDF — malware analysis report

Static analysis result for SHA-256 57fb217447c733d7…

MALICIOUS

PDF

41.5 KB Created: 2020-08-20 06:09:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 113a565e3ebc57ff86e15fb88aa94154 SHA-1: 0cba9d183d1c3198907f688504c70db27f9c82f9 SHA-256: 57fb217447c733d74dbcbae5532c35ea631b8aa23b23e9e5841df0af3e8e3853
162 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL, https://ttraff.com/pify?keyword=adobe+photoshop++for+pc+windows+xp, is designed to lure users to potentially harmful content. The document body, though heavily obfuscated, contains references to software downloads, 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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=adobe+photoshop++for+pc+windows+xp In PDF document text
    • http://files.nickstvs.com/uploads/1/3/1/8/131856279/bosinoku.pdfIn PDF document text
    • http://files.janetbelsky.net/uploads/1/3/1/4/131407572/wukitiguleve_zoxeses_nawimixo_kibakonag.pdfIn PDF document text
    • http://files.thehillchristianfellowship.com/uploads/1/3/1/3/131381553/0e1518b285c.pdfIn PDF document text
    • http://files.nualacenter.com/uploads/1/3/2/6/132695505/082c6339518fb.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/1/0433/3764/6245/files/47547219936.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5214/6587/files/86048784680.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9004/3285/files/xogumevifiposij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0833/4751/files/javascript_date_format_am_pm.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9240/1558/files/lubowepirimisumapimix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8434/1657/files/zemobetufofito.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9104/9115/files/game_karne_ka_tarika_computer_me.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0599/3375/files/pukimemirorebatuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9249/9877/files/rexesebewolonose.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8127/7342/files/sugubukoxukitinuxupoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5815/0046/files/borders_for_word_documents.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64EB 5292 bytes
SHA-256: b6dbb751b702aea6c72def05e553ca397b77a283ad4be5797af4e5d1a721a399
font_01_sfnt_off000076f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76F9 10040 bytes
SHA-256: 74ce85188904684a6cfbf0bcaa9b56ad97620c4277da5cba13ab432ecd0fb627

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