Malicious PDF — malware analysis report

Static analysis result for SHA-256 169f5f3002788cbf…

MALICIOUS

PDF

68.6 KB Created: 2021-02-15 12:39:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 631696a48483cf0eae95d0102bc4a240 SHA-1: 828007a3f842937bab35e4d9f47c18df31ada60f SHA-256: 169f5f3002788cbfff139971fc3e5ac9e7cab1130dbdc87e2605e1add5aeddd7
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL `https://bologen.ru/wix?keyword=papa%2527s+taco+mia+download` suggests a phishing or malware distribution lure, likely attempting to trick users into downloading unwanted software. The document body, though heavily obfuscated, contains references to 'Papa's taco mia download' and the authoring application 'wkhtmltopdf', further supporting the lure of a fake download. No scripts were extracted, but the presence of external URLs and the ML detection strongly suggest a phishing or malware delivery attempt.

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://bologen.ru/wix?keyword=papa%2527s+taco+mia+download PDF link annotation
    • http://doordash.link/galaxy_tie_dye_patterns_step_by_stepvh3bg.pdfIn PDF document text
    • http://podarokinsta.online/quicksand_nella_larsen1h1fc.pdfIn PDF document text
    • http://lnstagramverifiedbadge-media.com/133501954837zgco.pdfIn PDF document text
    • http://app-3null.com/98489337998vsfs1.pdfIn PDF document text
    • https://cdn.sqhk.co/kojetovukufo/f2iimS6/cia_world_factbook_mexico_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/samanugutu/ijicIgh/95020886213.pdfIn PDF document text
    • https://cdn.sqhk.co/zoxinugokas/jeIgfV6/84070420242.pdfIn PDF document text
    • https://cdn.sqhk.co/bikegola/ipghvhh/16862426108.pdfIn PDF document text
    • http://sarkife.site/60256961977czvzb.pdfIn PDF document text
    • http://serdyukov.pro/89802389050bam9o.pdfIn PDF document text
    • http://tophomework.space/soccer_heads_premier_league_2020u6d4e.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/gurafoga/lofesogovukemoritagagane.pdfIn PDF document text
    • https://s3.amazonaws.com/voxulija/catalogo_calentadores_solares.pdfIn PDF document text
    • https://s3.amazonaws.com/vabedafozo/53560270496.pdfIn PDF document text
    • https://s3.amazonaws.com/dudigonifu/87006444084.pdfIn PDF document text
    • https://s3.amazonaws.com/teximikamukubo/oxford_dictionary_english_to_swahili.pdfIn PDF document text
    • https://s3.amazonaws.com/veraxawewib/wixutawokenumesuji.pdfIn PDF document text
    • https://s3.amazonaws.com/farefasejikap/basic_tactics_for_listening_free.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_off0000d079.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD079 5248 bytes
SHA-256: b0ff7dac6f67f6b1e869e035b4cf6b85a4f157b7c4a3b8b5c5ab94d5e53c5da9
font_01_sfnt_off0000e258.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE258 10280 bytes
SHA-256: 6f15fdf9209a7af283e316e796f191b2fd156ad0afe5aeea8f5ca7c6d14e2695

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