Malicious PDF — malware analysis report

Static analysis result for SHA-256 a68e6ff069a2f2a3…

MALICIOUS

PDF

77.3 KB Created: 2021-01-08 11:18:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 0d608e09b89809916e96a0132c0dcef1 SHA-1: c27ee3fec4316625143bdb01dc39153bd3d92aa8 SHA-256: a68e6ff069a2f2a316ff400222902fd0cddb2c8dab6e0c080a16aed84b3f39ec
176 Risk Score

Malware Insights

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

The PDF contains heuristics indicating it's a phishing lure and uses social engineering tactics like 'ClickFix' to trick users into running commands. The embedded URL suggests a download attempt. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for a phishing campaign that downloads further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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/123?utm_term=srttrail.txt+file+download PDF link annotation
    • https://cdn.sqhk.co/zikegasenar/igdhbr8/zagezuvida.pdfIn PDF document text
    • https://cdn.sqhk.co/zetanitanedo/W7iU6ya/100_years_love_with_a_vampire_new_orleans.pdfIn PDF document text
    • https://cdn.sqhk.co/vomuvojovi/bjd9YRk/99508434991.pdfIn PDF document text
    • https://cdn.sqhk.co/lezebulodiw/CRoiijg/81559579278.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/fotojipifuzitul/ximokipebabowegidoxeku.pdfIn PDF document text
    • https://s3.amazonaws.com/wesezuzuvalirik/capsela_toys_for_sale.pdfIn PDF document text
    • https://s3.amazonaws.com/jesidofefe/34035178698.pdfIn PDF document text
    • https://s3.amazonaws.com/falevi/93066314726.pdfIn PDF document text
    • https://s3.amazonaws.com/jinabisura/puritans_guiding_questions_document_b_answers_key.pdfIn PDF document text
    • https://s3.amazonaws.com/zetituri/ironman_2_putlockers9.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_off0000f02b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF02B 5020 bytes
SHA-256: 247aa9eb91e2d2270343caf8108a72fd7a983811e308c1b9d0245706bc4a1943
font_01_sfnt_off00010164.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10164 11496 bytes
SHA-256: 4551efc43614f4b8b0177c70666c192780107cf7bf5800170e6aea99423788ac

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