Malicious PDF — malware analysis report

Static analysis result for SHA-256 55c6f20cc50b556d…

MALICIOUS

PDF

49.0 KB Created: 2020-08-04 22:24:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3ac21ffb9ed74152811b9ce246a78e5f SHA-1: f1f013c880fa11fe6ee109255da7daa2f5a4bb1d SHA-256: 55c6f20cc50b556db93e4efbb2839e752669ed26bf7e986d01831f47a6d8477a
202 Risk Score

Malware Insights

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

The PDF file contains a link farm with numerous embedded URLs, many of which point to Shopify domains. One critical heuristic indicates a malicious redirector link to 'ttraff.cc'. The document body, though heavily obfuscated, contains the target URL, suggesting a lure to a malicious site. The presence of a link farm and a malicious redirector points to a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=estrous+cycle+in+rats+pdf In PDF document text
    • http://files.misslorenz.com/uploads/1/3/1/4/131408798/funixowotike-zonuxazafizan-bevemezisugajo-sabigem.pdfIn PDF document text
    • http://podiwu.approfessionals.us/uploads/1/3/1/8/131857315/8500409.pdfIn PDF document text
    • http://files.gilberthighchoir.com/uploads/1/3/1/8/131871618/rivasuke.pdfIn PDF document text
    • http://files.cocowordcraft.com/uploads/1/3/0/9/130969505/xagom.pdfIn PDF document text
    • http://files.yogasolterra.com/uploads/1/3/1/3/131398406/9559f634ece9.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/1/0437/1054/6070/files/55095300245.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1872/2207/files/samotirirewuganapisig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8430/0959/files/89518710012.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7620/5209/files/bunomuzukegadefigemudud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2986/2312/files/copy_file_path_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3762/0386/files/60132454179.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9290/2039/files/50999147916.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9622/0572/files/zevesobivozevek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9481/9484/files/70469510434.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7772/9432/files/43283201151.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0195/3952/files/29939863052.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4913/9880/files/zorukabowe.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 6

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_off0000801d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x801D 5208 bytes
SHA-256: 88fbf402d31eb3f29b90e4363897ec9fea560b313b675d3d49c737a88ebf0b3c
font_01_sfnt_off000091f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91F5 10884 bytes
SHA-256: f121268b375b6210f940d4289c8d462d8d96eb0dcae233f666d5e68c4b1be5e8

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