Malicious PDF — malware analysis report

Static analysis result for SHA-256 63be3189a7c9e7e0…

MALICIOUS

PDF

87.6 KB Created: 2021-02-06 22:35:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 9a3529779f97dd2941285363fe06c80a SHA-1: 300d88140a2bf4e346dabfc0f7ea831aec9ed665 SHA-256: 63be3189a7c9e7e071648e5b96d8a4e69df3b977f76f40bed8db1e286c3ebbfb
136 Risk Score

Malware Insights

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

The file is a PDF document flagged by multiple heuristics as malicious, including a high-confidence ML classifier and ClamAV detection. The 'SE_ADVANCE_FEE_SCAM_LURE' heuristic indicates the document's content is designed to trick users with promises of prizes or funds, requiring them to take further action. The embedded URL points to a suspicious domain, likely serving as the next stage of the attack, potentially leading to phishing or malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://maypoin.ru/123?utm_term=www.survey.walmart.com+survey+homepage PDF link annotation
    • https://cdn.sqhk.co/xurawupo/4hijhjQ/space_chase_odyssey.pdfIn PDF document text
    • https://cdn.sqhk.co/gabamulijawe/MfjbifO/ridorelusovajigupivanuti.pdfIn PDF document text
    • https://cdn.sqhk.co/jepogedofuz/tjgVKgj/binonukameke.pdfIn PDF document text
    • https://cdn.sqhk.co/jufebarur/cUhcigm/best_cheap_3_point_shooters_nba_2k20.pdfIn PDF document text
    • https://cdn.sqhk.co/jogekiluse/Y2ibibG/12668043243.pdfIn PDF document text
    • https://cdn.sqhk.co/gedugari/jaTjjhi/39768572966.pdfIn PDF document text
    • https://cdn.sqhk.co/gisanewat/aLhgIgf/39332812705.pdfIn PDF document text
    • http://medugogubi.22web.org/bubble_shooter_mod_apk_unlimited_coins.pdfIn PDF document text
    • https://cdn.sqhk.co/gudopokobipa/kijib2J/how_to_get_minecraft_education_edition_on_chromebook.pdfIn PDF document text
    • https://cdn.sqhk.co/baxorurifina/LicrGQL/don_t_touch_my_phone_wallpapers.pdfIn PDF document text
    • https://cdn.sqhk.co/gisanewat/jbpEQH1/shelter_from_the_storm_lyrics_chris_martin.pdfIn PDF document text
    • https://cdn.sqhk.co/pifonode/aN8hbjc/schleich_42481_farm_world_pony_agility_training.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/jinotugiwomo/rilavevuwo.pdfIn PDF document text
    • https://s3.amazonaws.com/rokuwapesu/electronic_properties_and_band_theory.pdfIn PDF document text
    • https://s3.amazonaws.com/pegebunov/adobe_acrobat_pro_11_link.pdfIn PDF document text
    • http://bapibalapu.rf.gd/tenuma.pdfIn PDF document text
    • http://nidubopavoxu.rf.gd/marriage_biodata_format_in_tamil_language.pdfIn PDF document text
    • https://s3.amazonaws.com/nelizenejakarug/balarama_digest_in_malayalam_free.pdfIn PDF document text
    • https://s3.amazonaws.com/xipavir/amiga_forever_plus.pdfIn PDF document text
    • https://s3.amazonaws.com/gedesisumi/homophone_worksheets_for_2nd_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/bisute/sivawigitexumu.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_off000118be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118BE 5644 bytes
SHA-256: 67f47f42d7bc56a3fe7f21222da4c6f1d2958d2e2f8fae951009fcf796222c2a
font_01_sfnt_off00012bfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12BFD 10704 bytes
SHA-256: eb9731b37099139abd636197312e2e685dfb96a0bf3c9f80ec1dff728547b14a

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