Malicious PDF — malware analysis report

Static analysis result for SHA-256 943083a4b9fc704a…

MALICIOUS

PDF

40.5 KB Created: 2020-08-17 05:48:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8588611a153e3d56ee375db2b37eef24 SHA-1: 07bb13356430bba81801b72813f0e994b21d05ab SHA-256: 943083a4b9fc704a10fb11be31cb84104bc43631872c959623086ca47e4047b9
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=release+of+liability+form+texas+template'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains text related to a 'release of liability form', suggesting a social engineering pretext to encourage link clicks. The primary malicious IOC is the redirector URL.

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=release+of+liability+form+texas+template In PDF document text
    • http://letexiju.lbidreammakers.com/uploads/1/3/2/8/132814930/tasosupam-nedoz.pdfIn PDF document text
    • http://files.hermanus-festivals.com/uploads/1/3/1/4/131411539/6379834.pdfIn PDF document text
    • http://files.maryrosemedium.com/uploads/1/3/2/8/132814250/kufutiped.pdfIn PDF document text
    • http://files.dazzlinks.com/uploads/1/3/1/8/131856339/61bf8f7f.pdfIn PDF document text
    • http://rowaw.theuniversalgospel.com/uploads/1/3/1/4/131407668/wukupajerofumisibamu.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/1/0437/7749/1105/files/75745985904.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4373/2126/files/sufopudutesajiver.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9540/0356/files/rumozigiwomozutix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4430/6086/files/32243302833.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0515/7284/files/cpa_reviewer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9694/8382/files/26562436560.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/7868051279.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9818/6652/files/28274844467.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/1694/8633/files/assurdo_tredici_pietro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7542/0835/files/59124320991.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 7

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_off00006082.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6082 5364 bytes
SHA-256: c83dcc359b62f6f8fab0813c329b327a2e70cfa32bfc06223d880d2c7f0230f7
font_01_sfnt_off000072b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72B7 10052 bytes
SHA-256: 5034a24ff55c3958e0e1a4c536fd02154cff9f65ee58b1068ad232f77dc7ad8c

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