Malicious PDF — malware analysis report

Static analysis result for SHA-256 55fb9c3b595c0e3b…

MALICIOUS

PDF

42.1 KB Created: 2020-08-03 04:36:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6347a532c2ca79682d2e8a55283c288a SHA-1: a75491c28a9a68e1f5b9dc56cad6a27b560a6ee6 SHA-256: 55fb9c3b595c0e3b8a3c6b97705ec27cb045a05bd3411e37ac3184d85a51be71
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.cc/pify?keyword=separation+agreement+ma'. This indicates the document is designed to redirect users to malicious sites. Additionally, a PDF link farm heuristic was triggered, suggesting a broad attempt to distribute malicious links. The document body, though heavily obfuscated, contains the same redirector URL, reinforcing its malicious intent.

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.cc/pify?keyword=separation+agreement+ma In PDF document text
    • http://files.thundercounseling.org/uploads/1/3/0/7/130775249/1486454.pdfIn PDF document text
    • http://files.charishomes.com/uploads/1/3/2/7/132710601/6545090.pdfIn PDF document text
    • http://files.loenerhof.com/uploads/1/3/1/3/131378779/nobopa-sisolesumip-wivovumuwuzidil-xiduxodax.pdfIn PDF document text
    • http://files.joydanielle.net/uploads/1/3/0/7/130739991/61405.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/1/0433/2155/7150/files/sazugofimofuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85947343199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0084/5720/files/39494864621.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7608/4117/files/41176422575.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/89120948070.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8544/6824/files/sulomifim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3427/2159/files/wavomepub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0868/6237/files/57633031575.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0255/1716/files/13087383640.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4347/1003/files/sibabasabi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0415/8375/files/levijuwubevuradeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9452/3552/files/pesovawuzudufule.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_off0000674d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x674D 5032 bytes
SHA-256: 24fe666c9f8bbe05f424a79ab6157e527978df6558464eda0c852d80eedd4fb4
font_01_sfnt_off00007858.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7858 10336 bytes
SHA-256: 088c1cda3305a3ea7a23f193bcfad79c345ea499053ac531601411bb6af5fb4c

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