Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbd7bfcca4d2da14…

MALICIOUS

PDF

39.6 KB Created: 2020-08-19 19:33:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 36ac3a22f02a223aadcd4208e29a4a58 SHA-1: 1a6022da096aab9c05f9b42044d1324b8cc69189 SHA-256: cbd7bfcca4d2da146fe2e63667bb2058a65fb430d766dde4a39ad4518ea6c9f3
194 Risk Score

Malware Insights

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

The PDF contains a high density of links to external PDF files, a technique often used for SEO poisoning or to obscure malicious redirects. The primary link, 'https://ttraff.cc/pify?keyword=alaris+8110+syringe+pump+service+manual', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains references to the service manual and the malicious URL, indicating a lure to trick users into clicking the malicious link for potential malware download or phishing.

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=alaris+8110+syringe+pump+service+manual In PDF document text
    • http://files.koutsaris.com/uploads/1/3/0/7/130739892/rovelasisojod.pdfIn PDF document text
    • http://betepiwa.divinedishcatering.com/uploads/1/3/2/6/132696434/feed7186259565.pdfIn PDF document text
    • http://files.merynncandles.com/uploads/1/3/2/6/132695418/rajine-bowaludapa.pdfIn PDF document text
    • http://files.fbcbrockton.org/uploads/1/3/2/6/132681992/godoragakowito_papamerasu_kepilabubi_xatedagenu.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/1/0429/9731/7783/files/nolafovavinumoju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2371/9845/files/zowonofovovenetoxasa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6031/3763/files/eccentric_and_concentric_reducer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4204/5090/files/cormen_solutions_3rd_edition_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4923/8178/files/xidewajulufixonizebuse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4575/6833/files/lugovex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3519/6566/files/37892940214.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8107/1782/files/40054788036.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4196/4710/files/74646912045.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 4

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_off00005365.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5365 5792 bytes
SHA-256: 83cd8c7f3f66b4f1a7bd0974fa378efc6ed6d0e554e92351d9bbc83fa38032cc
font_01_sfnt_off0000670f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x670F 13628 bytes
SHA-256: bf68e5d544916cdccd40514f798e661fe288ab7d902e07c36076de8f7f980194

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