Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fc9748ac63aa95d…

MALICIOUS

PDF

58.4 KB Created: 2020-11-12 22:01:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 85f4e554d08af2a070238ecc8e941966 SHA-1: d8d80c7f7c54351b1c333dc8ab0a744f611e55f8 SHA-256: 7fc9748ac63aa95dd7209b1e5ee4b34b22078b291e9f0d4897eee6b5fcd27365
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 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://trafftec.ru/aws?utm_term=patola+audio+song+dj PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4421336/normal_5fac4234bcfbd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378160/normal_5f9ea802e3afe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447263/normal_5fa8ba0178ac1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367622/normal_5f9eb217699cb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391621/normal_5fa10f63a7aa9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389353/normal_5f99d53e81529.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/woxojuxafopuv/la_rams_injury_report_for_playoffs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc2d78db-1979-419c-82b1-4c0266818e39/9828381887.pdfIn PDF document text
    • https://s3.amazonaws.com/zetare/agastya_samhita_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6bd27207-975f-4cbb-abb3-8b2fdedb02a1/nisovivipijibovawuxa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7521a15d-bfce-4cb1-b6eb-8046f4b945d3/17773460175.pdfIn PDF document text
    • https://s3.amazonaws.com/kulinisokakewi/enteric_nervous_system_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6040857c-d847-4d53-bcbc-b82a0608ce30/dark_souls_3_s_scaling_weapons.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/29d4c5df-cb47-496e-af27-ce942e704f80/9898279564.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a2bcea9d-7d03-412c-8029-85345be4b04d/xuzevimowawalebozur.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5f34b504-0a4c-4784-a86c-01a86b7de9ed/77496982673.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_off0000ab24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB24 4976 bytes
SHA-256: b7883bd9e7b39f5f4a8b80a60bb987e585e7b4619b3c7b7cb2cdeca11117e628
font_01_sfnt_off0000bc28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC28 9548 bytes
SHA-256: 332311baf3857eb2808c937f7266944626cd57ec53a4083284d920e4b366dedd

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