Malicious PDF — malware analysis report

Static analysis result for SHA-256 85fa5de8fb14bcdd…

MALICIOUS

PDF

52.8 KB Created: 2020-08-18 17:55:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 822614d0acd3f7d3427ac7e6e29f3143 SHA-1: 918980a95ee881eb21aa1ef4d162ccf5cc54c150 SHA-256: 85fa5de8fb14bcdd90b9a09097fa22f62b770341896980aec08ddac0fcccff63
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to a redirector service identified as malicious. The document body, though heavily obfuscated, contains text suggesting a lure related to a 'car repair business plan template'. The presence of a malicious redirector URL strongly indicates an attempt to lead the user to a malicious site for phishing or malware distribution.

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=car+repair+business+plan+template In PDF document text
    • http://files.stgeorgecountrydancing.com/uploads/1/3/1/4/131407080/3562928.pdfIn PDF document text
    • http://files.teaysvalleyfire.com/uploads/1/3/1/3/131380052/6576158.pdfIn PDF document text
    • http://files.shureunderwater.com/uploads/1/3/2/8/132814949/8479f5.pdfIn PDF document text
    • http://files.monmouthfppa.com/uploads/1/3/0/7/130739238/af2cb0a8c3b.pdfIn PDF document text
    • http://files.naomibourque.com/uploads/1/3/0/8/130813427/5235001.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/1/0447/3955/9578/files/ridiwirefojomenabovisujet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2677/6227/files/kopofuziregebusezuduvab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6989/8914/files/37667917211.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4659/0872/files/statistical_process_control_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1701/1353/files/69433921109.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5857/7064/files/35814614219.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5848/6678/files/talagexizeboxikinipeze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7129/7943/files/arabesque_no_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8806/8254/files/hamara_quetta_fa_fsc_date_sheet_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8199/0295/files/22466335736.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 5

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_off0000923d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x923D 5012 bytes
SHA-256: 692f14e13c18f6518f274ac47e58376a01b79d3925ee5208abe4049974479a4c
font_01_sfnt_off0000a323.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA323 10248 bytes
SHA-256: 6e19112aa6c0d80b0d75c2481756da1b57400329b96a6026a12233be3b3eeea9

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