Malicious PDF — malware analysis report

Static analysis result for SHA-256 771e061e93bb346d…

MALICIOUS

PDF

71.6 KB Created: 2020-12-01 03:18:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 27fbabdd0eee813aa2bf3b42a396dc71 SHA-1: d8fdf843e8e7c9904aee9d73795966fd269384c8 SHA-256: 771e061e93bb346df4a91072ff14efb76b8aaef202037863b8eb4229fd6815f9
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafffi.ru/aws?utm_term=caravan+and+camping+club+insurance+claim+form PDF link annotation
    • https://gunobodupisar.weebly.com/uploads/1/3/4/6/134677737/mesesubaxenifo_dazodedowu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416806/normal_5fba23d5587d7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379049/normal_5f9c26a69e0b8.pdfIn PDF document text
    • https://xizodekez.weebly.com/uploads/1/3/4/7/134769153/b7cc15d4b.pdfIn PDF document text
    • https://nobinetezo.weebly.com/uploads/1/3/0/9/130969761/439493.pdfIn PDF document text
    • https://jasebezaf.weebly.com/uploads/1/3/4/6/134630561/dbfd1f24.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497370/normal_5fb80015b229b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf6987f3de5e49b55cc76e/1606379913608/mega_filmes_hd_7.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/343bc1de-db76-4bb6-9394-d8247c19ce03/18444983546.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc37bd13dfdd95b60e57127/t/5fc3ffa83485235c86424f68/1606680494894/line_and_rotational_symmetry_worksheet.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0c1729955c744b53acf23/t/5fc5779e7acac6192a7ba2cb/1606776736116/the_broadview_anthology_of_british_literature_volume_a_second_edition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e0187f91-44f2-4431-bfd6-efaeb2c2cc4c/rejavugurubola.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/96979008-bc54-4e89-bc21-570be818d8e9/petrucci_font_mac_download.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dd59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD59 5580 bytes
SHA-256: 93c544cfd81b332bff00766a8ed714e10a0d9c354819639f3e7782d86b2c6b6d
font_01_sfnt_off0000f03d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF03D 9776 bytes
SHA-256: 59cde23293dd9b52800be5f744f58208a1b3a4a932f85d91a5257fbe4a407552

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