Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed5ab0fba7cfa822…

MALICIOUS

PDF

350.9 KB Created: 2020-08-22 06:18:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f50d3305b85b25029d2bf52a6204e583 SHA-1: c6ef3f8bfffa61bb483c31f860d325f0f681dc89 SHA-256: ed5ab0fba7cfa82232bd57e016e74215de09c2fde995a9dc6cc26201f52118b2
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains an embedded JavaScript stream and a critical heuristic firing for a malicious redirector link. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. This suggests the PDF is designed to trick the user into clicking the link, likely leading to a phishing or malware download site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9788

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.
  • 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.cc/pify?keyword=kcpe+kiswahili+2018+answers In PDF document text
    • http://files.buddiesbooksandbrunch.org/uploads/1/3/1/3/131380619/9194975.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/1/0434/3191/9765/files/58467245123.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2965/9805/files/lemijenaguxuxetase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5507/0880/files/dasijajo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tiwimuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2344/0799/files/pinobuwosuseju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9864/5404/files/apology_letter_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8418/4728/files/46540259924.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4953/3088/files/posozorit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/69440205977.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5981/4306/files/carbohydrate_in_organic_chemistry.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005107f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5107F 5664 bytes
SHA-256: 641b15c2f799599d5108d383e6d4248340089e9c5c3beb8044d7a23d87f21c2b
font_01_sfnt_off000523ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x523CE 16012 bytes
SHA-256: 45326a4ab6a419d2f30bfcec2f73cf98a56c638e207389405baeddee5b287f21
font_02_sfnt_off0005555e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5555E 16224 bytes
SHA-256: fba59e47e8ca233e9d73a8be59979224962753e34c0dd5a07a2b9cc72f79e871

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