Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb331fbce191c8f1…

MALICIOUS

PDF

158.9 KB Created: 2020-08-23 16:16:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 36222317d8a53a39ea3ca79bb428eb5e SHA-1: aaa6fca43d0c29a7ad9e2a79efe05087d5708fad SHA-256: eb331fbce191c8f102e9bf4107b63a1c9c07461ce2561650d17f6813dcc05e1b
134 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains the same URL, suggesting the primary intent is to lure the user to this malicious site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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.
  • 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=buderus+logamax+plus+gb062+manual In PDF document text
    • http://files.iamcarlageorge.com/uploads/1/3/2/7/132740274/2307492.pdfIn PDF document text
    • http://files.pyramidodi.com/uploads/1/3/1/6/131636746/8673200.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In 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/1/0431/6761/3087/files/kasus_askep_bronkopneumonia_pada_anak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/1107/5222/files/65900560338.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6954/7431/files/petsafe_wireless_fence_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/0782/3259/files/frame_of_reference_occupational_therapy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1084/1000/files/2013_chevy_cruze_repair_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3601/6803/files/cute_couple_image_baby.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1356/0729/files/nebisamabemewose.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4298/7423/files/texatijukopijak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2258/0886/files/20927880224.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5371/9452/files/neurological_assessment_nursing_procedure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1629/8393/files/62724821787.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 8

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000204f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x204F8 3372 bytes
SHA-256: c76c0a2cee841f29f4ac7b56d118ebc3e63190b516e715da9ab50ade9457098d
font_01_sfnt_off0002126f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2126F 5964 bytes
SHA-256: fc0e724a3ee093664c522bc78c9d8426955576c0eeaee605267aae3a98a15b9a
font_02_sfnt_off0002269f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2269F 16012 bytes
SHA-256: a4d33f9b125fa786ed7f38f677de8a0d82cebe6cae4b01d827a2c02603ad1513
font_03_sfnt_off000258ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x258ED 16060 bytes
SHA-256: d78d7cc1a68daa951b4fbccbcfb906d5a08ad384f187125596154666a45abe72

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