Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe26f0b2df9dd675…

MALICIOUS

PDF

118.1 KB Created: 2021-05-30 20:48:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 11ccce56de959355324a6eaef37cbee1 SHA-1: 7b1c7871d32149b7027b08a0be3fe435035193f8 SHA-256: fe26f0b2df9dd6759d34322f5012bccc9dea874b2b154b656d43ca06faeb1bb3
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file is identified as malicious by multiple heuristics and a machine learning classifier, specifically flagged as a phishing trojan. It contains a large number of external links, indicating a link farm or a distribution mechanism for further malicious content. The document body, though partially corrupted, suggests a lure related to 'Destiny 2 weapon perks guide'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://dugedepap.ru/123?utm_term=destiny+2+weapon+perks+guide PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4445343/normal_60107fe816562.pdfIn PDF document text
    • https://gipuwibozomaz.weebly.com/uploads/1/3/4/8/134891778/a58286c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459035/normal_6006e4ca9ab81.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448343/normal_5fdcbc4f65958.pdfIn PDF document text
    • https://static.s123-cdn-static-d.com/uploads/4452834/normal_60affee4aa483.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377679/normal_6017331d3b92d.pdfIn PDF document text
    • https://fisabovetusita.weebly.com/uploads/1/3/4/5/134597566/gogisirobewozoma.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366341/normal_5fdf4c596925a.pdfIn PDF document text
    • https://popoxalisasuper.weebly.com/uploads/1/3/0/7/130775362/8784266.pdfIn PDF document text
    • https://zuretajobujab.weebly.com/uploads/1/3/1/4/131483148/3760771.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403560/normal_5ff38f2e678a3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495843/normal_5ff09717c75b7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389376/normal_5fdbc8a3652bc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427509/normal_602d6cee26d77.pdfIn PDF document text
    • https://vabusise.weebly.com/uploads/1/3/4/3/134385335/vugegefejofo_difimapiduwizoj_fizur_gisexazi.pdfIn PDF document text
    • https://nedetufajazigaf.weebly.com/uploads/1/3/1/6/131606803/8b0455bc.pdfIn PDF document text
    • https://static.s123-cdn-static-d.com/uploads/4413363/normal_60affd9454d4c.pdfIn PDF document text
    • https://ridawijobufori.weebly.com/uploads/1/3/5/3/135318292/fijigoxawovakag-burebovuw-xamivoniguw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501374/normal_6004ec4699191.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421478/normal_5fe3f1aad336b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off00019320.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19320 5484 bytes
SHA-256: 6607b6aabeba48c4dc2e3298d151d6358b631491ac3b8e9d1c591c20c5c0c4a5
font_01_sfnt_off0001a5f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A5F7 11064 bytes
SHA-256: dc455b42c42dde90e0ed7d5df091e1daa74efcc8587ca114ab4a97e887b51ea8

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