Malicious PDF — malware analysis report

Static analysis result for SHA-256 62b2684382f43e57…

MALICIOUS

PDF

64.2 KB Created: 2020-12-15 23:22:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 311f012b8ba193ed00f6b6f10be78a58 SHA-1: 1e572e37cfda0111246154e74429e7e3e75c3a0a SHA-256: 62b2684382f43e5740444df5656fe31212c3bb0f44fb75c3ad03dfa4ab28a7c4
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 0.9998

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://trafffi.ru/strik?utm_term=how+to+crack+hickory+nuts+video PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366401/normal_5f87165409038.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421474/normal_5fa957b0bb8a7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490936/normal_5fd176d682513.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380530/normal_5f9c1d5e52cc1.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/5fc4d73311f6a419849eeda5/t/5fc53c88f81c9a2a0c4df977/1606761611809/61061190470.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fcf86a0db6f322e656fdfc9/t/5fd6ca35ffab5d3c560a243b/1607911990901/54572373546.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/distress_tolerance_scale_dts.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcfcfeef3361272aec3bb5/1606221055160/weber_spirit_200_manual.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc64c582e537a05ef2dcca0/t/5fc8a9c48eecd53e39f00ac4/1606986182834/nemubuwawazimosiwujig.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e844cd1e280355d45049/t/5fc1471964571256546ad215/1606502170357/minecraft_pet_mod_1.16.2.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2af36df132613bbc92a03/t/5fc8dd81b74dd54858e3780f/1606999425998/among_us_hack_free_skins_and_pet_ios.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0cdff40f1034a5ca84dce/t/5fc982784e3f3d25173203dd/1607041657021/wiwokagupize.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwenoxuzasila/17619806336.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_off0000c3a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3A0 5276 bytes
SHA-256: 26142b27d510787bfbcd4c38e82beec00275df8c7c219dc72cbf7c60a3b4a348
font_01_sfnt_off0000d5a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5A0 8888 bytes
SHA-256: f4676c283ddf4221f9fcacdf177bf42dfb7a91c59a69fed5795afb88a15c3ec3

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