Malicious PDF — malware analysis report

Static analysis result for SHA-256 f93b732502508764…

MALICIOUS

PDF

40.4 KB Created: 2020-08-20 22:46:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 52804771358f5976bc7ae8e9e77c7d73 SHA-1: 38db02f2aa130b0af8c77ec4790b6534cbcc17cc SHA-256: f93b7325025087644632a77f67eaa082ef50db93492e0f2cf203c0cb7ec71a7d
162 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=spreadsheet+compare++microsoft'. This indicates the document's primary purpose is to redirect users to a malicious site, likely for phishing or malware distribution. The presence of a PDF link farm heuristic further supports the malicious intent by indicating a large number of external links, many of which are hosted on Shopify. The document body, though heavily obfuscated, contains the malicious URL and references to spreadsheet comparison, reinforcing the lure.

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=spreadsheet+compare++microsoft In PDF document text
    • http://files.tenthstreetmiscellany.com/uploads/1/3/0/7/130739369/sifofagafexew.pdfIn PDF document text
    • http://files.topicalbiblestudylessons.com/uploads/1/3/1/6/131607029/naxitag.pdfIn PDF document text
    • http://files.watips.net/uploads/1/3/0/7/130775520/9695308.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/1/0433/8260/3927/files/22327702518.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5820/8672/files/jawurumatobivolus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/6341/4682/files/tapavezimobapuxumurug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7631/3503/files/workbook_software_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7431/3633/files/suvisarokizetenovot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2188/3816/files/vonodewudowamerupebe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8222/7617/files/lamulelemiwalijar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0600/0282/files/11027614668.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7356/7894/files/kudupazuzinijeki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5987/9841/files/52184446880.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lonuxifipepi.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_off00005fc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FC2 5464 bytes
SHA-256: 02b73c42d03524971a6331e26fa476706a006661a60ff6f68ccb050e86aec068
font_01_sfnt_off0000722d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x722D 10128 bytes
SHA-256: c8639433b4ea05aeb13f4e24c1941445d401875612278c4c8af68c40d0a7a965

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