Malicious PDF — malware analysis report

Static analysis result for SHA-256 d22b9c8f4ada2744…

MALICIOUS

PDF

68.9 KB Created: 2021-03-06 03:47:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: b79b6a6503a66b3b39fc95f2c2030921 SHA-1: 433a284f147cc47b1e49ff4119520c1d2de0edb7 SHA-256: d22b9c8f4ada2744468316e45fc83207cf12c54b574f136def537056b6a195b0
126 Risk Score

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
  • 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://jacksth.ru/wix?keyword=sadlier+oxford+level+e+unit+2+answers PDF link annotation
    • https://cdn.sqhk.co/tekemozuj/mKibzhi/47593217801.pdfIn PDF document text
    • https://cdn.sqhk.co/wafexumu/6ieggje/90100453530.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416790/normal_5fc7eae30113c.pdfIn PDF document text
    • http://gokojemisivuf.22web.org/bluestacks_4_pc_free.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4502268/normal_5fe20b515e1ea.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382621/normal_5ff90eb6216b6.pdfIn PDF document text
    • http://kexejadupuna.66ghz.com/43814594132.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381978/normal_5fe6c8c1ccd96.pdfIn PDF document text
    • http://figironeme.22web.org/network_master_speed_test.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450512/normal_6034d5a04180d.pdfIn PDF document text
    • https://cdn.sqhk.co/pefisemise/e8geB3o/power_music_group_rx_transform.pdfIn PDF document text
    • https://cdn.sqhk.co/pafitevet/znbjjeq/daily_checklist_app_windows.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383917/normal_5ffadb6040fbc.pdfIn PDF document text
    • https://cdn.sqhk.co/pidodalatip/pqwjjOJ/jebef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374839/normal_600d98ab332ad.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lunijikujapike.epizy.com/55642683922.pdfIn PDF document text
    • http://kizuwopo.epizy.com/7291976822.pdfIn PDF document text
    • http://riduxipilitaj.epizy.com/accu-chek_aviva_plus_blood_glucose_test_strips_50_ct.pdfIn PDF document text
    • http://lenumizisil.rf.gd/15204396537.pdfIn PDF document text
    • http://tatinovewetede.rf.gd/desk_calendar_2020_template_free.pdfIn PDF document text
    • http://kogopixipinal.epizy.com/16084670795.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_off0000d16c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD16C 5356 bytes
SHA-256: 4331f92f9703004c07521f4130bc722aee019a89a7708465ceada19c903b138b
font_01_sfnt_off0000e3c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3C8 9884 bytes
SHA-256: c88cf306af2d37815560bbc81764d6d245818348a97c2100cd72bc6c38cf6f4c