Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9bcf75af0f311c1…

MALICIOUS

PDF

80.0 KB Created: 2020-12-10 09:57:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: bcc5a92fbb08c421331bb031eb5d6706 SHA-1: 9292d09bc3882d9116c11ba2a448d3673d9f23bf SHA-256: f9bcf75af0f311c1c74e44671392cb7bca7316971389b2deb28ad02f1a1134ab
194 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses a clipboard-command (paste-and-run) lure. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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://gettraff.ru/aws?utm_term=brush+adobe+photoshop In PDF document text
    • https://cdn-cms.f-static.net/uploads/4423757/normal_5fbed9d71bfd4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462037/normal_5fa6e81ca59d7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384316/normal_5fa2d004e404e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477373/normal_5fc1589b9a743.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418401/normal_5fadf9e9297cf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401517/normal_5f941916021d8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464053/normal_5fb363e46f065.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bevekizadoxuj/almonds_nutrition_information_per_100g.pdfIn PDF document text
    • https://s3.amazonaws.com/jivala/hillsong_what_a_beautiful_name_spanish_lyrics.pdfIn PDF document text
    • https://s3.amazonaws.com/wumodukubaru/cuppycake_song_mp4.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fce9157be6ea76a20d7ef13/t/5fd0ac37cb6bfe602c55b8b8/1607511096011/xirotebofumotu.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc6c2e8bcf5f06bcb74575b/t/5fcc9e8e9aa2de0c648e9ac8/1607245456072/90700931179.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fce2dc706af1e3f448c2ec4/t/5fcfddf138f37379df3d15fc/1607458290118/7979192652.pdfIn PDF document text
    • https://s3.amazonaws.com/jepinebawo/nutrition_information_for_mashed_potatoes_and_gravy.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/04349fed-7152-4fb4-8212-6bed58242f14/mobimeet.ru__java.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b95424d6-1b0a-49f4-b3fd-f64164a78b94/62640277651.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbdf0f2e6d49a06bb563c6f/1606283507704/episode_mod_apk_download_for_android.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 7

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_off0000fbab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBAB 5204 bytes
SHA-256: 4fec53eeb42ad216c16564f4ce9a5a4dedf96bb5dee723921017c18255248b61
font_01_sfnt_off00010d4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D4D 11324 bytes
SHA-256: 6ccaad2d2fc04f482a306cbf7f7683af34e90a7b9e1f563a6a890edcaaf5937c

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