Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cee51064a6739ac…

MALICIOUS

PDF

73.9 KB Created: 2021-05-02 03:16:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 53745d6eb01a70d0dad2df05af587c4a SHA-1: e28eab85a52c6c5f29bc98eb2bcfb10e18a14803 SHA-256: 2cee51064a6739ac7a77a49af92f80a460a277bca064ccb9e13a69105dfc31fb
156 Risk Score

Malware Insights

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

The PDF file contains numerous external links, with the primary malicious URL being 'https://lozipotod.ru/strik?utm_term=how+to+rout+demons+by+john+eckhardt'. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, suggesting an attempt to create a link farm or distribute malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://lozipotod.ru/strik?utm_term=how+to+rout+demons+by+john+eckhardt PDF link annotation
    • http://pc-remont.website/air_pollution_control_a_design_approach_4th_edition_solutionsgcvau.pdfIn PDF document text
    • https://cdn.sqhk.co/nomelafu/jgjjfiz/die_in_100_ways_uptodown.pdfIn PDF document text
    • http://onlineeshop24.xyz/bodoridoke9k1vl.pdfIn PDF document text
    • https://cdn.sqhk.co/xikokopek/leLcSep/dp_mts_admit_card_sarkari_result.pdfIn PDF document text
    • https://cdn.sqhk.co/nepofigiper/Cggopge/best_buy_ps5_launch_day_shipping.pdfIn PDF document text
    • http://matras-24.ru/how_to_boot_into_windows_repair_moder157l.pdfIn PDF document text
    • https://cdn.sqhk.co/bijukipuj/2GVLChj/mafixedare.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/tedowafomaru/98698402810.pdfIn PDF document text
    • https://s3.amazonaws.com/falevi/1520545355.pdfIn PDF document text
    • https://ebd73b9a-b255-48a5-b781-2bd84b483b4c.filesusr.com/ugd/956c05_3a9090d6478d403b8109a7984e7f25a2.pdf?index=trueIn PDF document text
    • https://387a498e-9551-4239-9507-3183ba214552.filesusr.com/ugd/cd403b_a4a5786a3d8b434a94517e48e8b26946.pdf?index=trueIn PDF document text
    • http://kariwukopufemu.rf.gd/thomas_mann_buddenbrooks_english.pdfIn PDF document text
    • http://rarazimefuv.rf.gd/harry_potter_ebooks.pdfIn PDF document text
    • http://polebofoxajiras.rf.gd/51308298938.pdfIn PDF document text
    • https://s3.amazonaws.com/lulelepese/estimating_decimals_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/waxapoz/autocad_lt_2014_mac.pdfIn PDF document text
    • http://mabidorozo.rf.gd/44018168636.pdfIn PDF document text
    • https://s3.amazonaws.com/sizadagazagaj/30135958265.pdfIn PDF document text
    • http://zixagoku.rf.gd/carenado_pc12_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/nafoxuda/4_week_look_ahead_schedule_template.pdfIn PDF document text
    • https://s3.amazonaws.com/zumezeviwakiz/5611069529.pdfIn PDF document text
    • https://s3.amazonaws.com/luropi/disney_piano_music_sheet_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_off0000e295.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE295 5584 bytes
SHA-256: 9969ae13e6c3c309360d93b07d8ddf93ba9d7f9d1e0bedea5d0e3461fac5771d
font_01_sfnt_off0000f579.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF579 10648 bytes
SHA-256: afc5327e39b821a7493b332dc1e014b75341ef4b0b3dd14f5ad2941e111cbcd3

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