Malicious PDF — malware analysis report

Static analysis result for SHA-256 24d2657d206d7cf6…

MALICIOUS

PDF

80.7 KB Created: 2021-02-10 15:00:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: ba0864b129d9d242651c3ac7ec668fea SHA-1: 9757e418ffb79e518d9d2df9265a2562afc84588 SHA-256: 24d2657d206d7cf639519db3db1a2d9aaff0d0164d182596ff9bc996215b34b9
126 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a link farm, which is a common tactic for phishing and malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, contains text that appears to be a lure for a specific search term, suggesting a phishing or scam attempt.

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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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=biblia+interlineal+strong+pdf PDF link annotation
    • https://cdn.sqhk.co/tosuwukiwate/hdqjjYV/crashing_season_3_episodes.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389370/normal_5ff6c6668ab7b.pdfIn PDF document text
    • http://naturka.space/tamil_movie_trailer_2019_isaimini._com85utc.pdfIn PDF document text
    • http://checkyourcredit.info/bitter_moon_tamil_dubbed_full_movie2ndze.pdfIn PDF document text
    • http://judijemavup.22web.org/apc_back-_ups_cs_650va_manual.pdfIn PDF document text
    • https://cdn.sqhk.co/wepurodapike/jeiagig/31990758596.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413019/normal_5ffab2671b9bc.pdfIn PDF document text
    • https://cdn.sqhk.co/sowojusawepu/FhgTZ31/duvojekupo.pdfIn PDF document text
    • http://de-bewertung-889562.icu/tepiviburaride8yu6w.pdfIn PDF document text
    • https://cdn.sqhk.co/zewezerezi/iUghLij/bimojip.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/mokuwanibof/carsguide_land_rover_discovery_sport.pdfIn PDF document text
    • http://kadegezopofog.rf.gd/kazanobodajobak.pdfIn PDF document text
    • https://s3.amazonaws.com/feseni/vebiz.pdfIn PDF document text
    • http://nogojituwizax.epizy.com/gma_news_weather_report_today.pdfIn PDF document text
    • https://s3.amazonaws.com/sizabo/australian_passport_application_checklist.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000becc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBECC 2912 bytes
SHA-256: 379102226829f3bab3a3c763e92e857047a50d0750f2cd7a3c42e86eaecd7746
font_01_sfnt_off0000c930.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC930 5184 bytes
SHA-256: 152d2a4f40a52672329a1b6414a09e00715e396621565746896bbfe899bde1c4
font_02_sfnt_off0000dac6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAC6 1796 bytes
SHA-256: 765b2ad1a38a94440f74f65db6bc516ebacd89c06915b0b5e704c447b4de4636
font_03_sfnt_off0000e3b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3B8 14248 bytes
SHA-256: 3a739e8d405c578bbde4a21e8791230b9288b8a38348e6b49e2f548d031cb2bf
font_04_sfnt_off00011167.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11167 16196 bytes
SHA-256: c0351e9a661e93b5b024187f5f22a3d8eef113da5d9b40302cc3ebd73b325851
font_05_sfnt_off000126a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x126A9 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

Open this report in the interactive analyzer, or submit your own file for analysis.