Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9438414d83b6b1e…

MALICIOUS

PDF

47.7 KB Created: 2020-07-29 17:39:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1ce7343af5556350b60f484d1ac4de2d SHA-1: ce94391d14a4adbf93d06bb2cfe80aaeca783edc SHA-256: e9438414d83b6b1e5291abf1eaa708bbe34e01d70325a3494c5fe0db37762c3b
202 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically identified as a malicious redirector. The presence of a 'download button' heuristic and the document body's suggestive text indicate a social engineering attempt to trick the user into clicking the malicious link. The primary malicious IOC is the ttraff.com redirector URL.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.com/pify?keyword=medical+fitness+certificate+for+school+pdf In PDF document text
    • http://files.jpactm.org/uploads/1/3/0/7/130739558/956628.pdfIn PDF document text
    • http://files.stemacademyband.com/uploads/1/3/1/4/131437862/7097380.pdfIn PDF document text
    • http://files.ontarioovationtwirlers.com/uploads/1/3/1/3/131379803/vowinuga.pdfIn PDF document text
    • http://files.biomems-supply.com/uploads/1/3/1/1/131164425/livupipolixib-mizul-vupoz-sabasudejuj.pdfIn PDF document text
    • http://files.cs4il.org/uploads/1/3/0/9/130969003/sajaliwelil-lalurakeluje.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/1/0428/0611/6511/files/78044326120.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vexib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0392/7973/files/gozirupofomavafugel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8516/0857/files/widariremidafevin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2004/1886/files/sevadijikekujozo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4276/5976/files/54890997518.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5680/8607/files/56279295859.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6051/0376/files/10787546947.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5543/2348/files/kixukotapetirixutaka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1335/7214/files/56226696291.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5604/7004/files/nezifofivafasezites.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_off00007ebd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EBD 5036 bytes
SHA-256: af0a3db77891c2582482dccd16741a20122580ed6a8722be33cfc05b50e1334c
font_01_sfnt_off00008fc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FC8 9892 bytes
SHA-256: 8fa4d6f5d2895a06d816c1cb0573acd1217fabfc88eb3c0b193ff0ebfb27f79f

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