Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b885991c8ddf726…

MALICIOUS

PDF

61.0 KB Created: 2021-02-11 20:44:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 2dcf1b10784855a59aebe7692e289c3b SHA-1: 57661fc695fe5441494082b08a6888b0e7985f44 SHA-256: 2b885991c8ddf72675bf5dd2cf9970084daefe58e202a5a14aca7017c0bf8238
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://jottigo.ru/wix?keyword=graco+ashland+classic+crib+instructions PDF link annotation
    • https://cdn.sqhk.co/moleselofa/ibrhaii/sarigijunuvitug.pdfIn PDF document text
    • https://cdn.sqhk.co/vedanoderifu/ns6jcyP/44961414015.pdfIn PDF document text
    • https://cdn.sqhk.co/filodomazora/7LKr3ja/jio_online_recharge_399_free.pdfIn PDF document text
    • https://cdn.sqhk.co/savageven/f6Cgg5i/symantec_vip_access_windows_store.pdfIn PDF document text
    • https://cdn.sqhk.co/robimovule/iagiijg/pawenudimuj.pdfIn PDF document text
    • https://cdn.sqhk.co/dubutemaruxu/egWWhia/gewaromam.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453579/normal_6002465ce2d25.pdfIn PDF document text
    • https://cdn.sqhk.co/beratinuga/jhhgigh/68480517867.pdfIn PDF document text
    • https://cdn.sqhk.co/pirujezexod/hiihijh/91891924256.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gorefoverotiw.epizy.com/gintama_series_guide.pdfIn PDF document text
    • http://bexufomadixin.rf.gd/social_studies_official_ged_practice_test_answers.pdfIn PDF document text
    • http://xegewir.epizy.com/vevosuremolenefezu.pdfIn PDF document text
    • http://wosakev.epizy.com/semicolons_and_colons_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/bezorito/andium_homes_annual_report_2017.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_off0000b261.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB261 5200 bytes
SHA-256: fbe507ebb7d9ee42899df7ffae17a9f353720b12d284a5c77489c1c948360e63
font_01_sfnt_off0000c3fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3FE 10324 bytes
SHA-256: e5dc37194418e8bd8d244b98b8892d243a9fd96891395e7c4efc0d4564f3022a