Malicious PDF — malware analysis report

Static analysis result for SHA-256 752f807a64ae37cd…

MALICIOUS

PDF

72.5 KB Created: 2021-02-11 16:49:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 64e786f0f0525baecd1d37aebe88b135 SHA-1: c8471deaa77b6ad6cacdf0e0a2e0dab305d70eed SHA-256: 752f807a64ae37cdcef1b17466e72f94ef1992574d35b592f00b952236e061d4
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://jottigo.ru/wix?keyword=letter+school+apkpure PDF link annotation
    • https://cdn.sqhk.co/xufatirumina/iigjOhh/bingo_battle_online_pikmin_3.pdfIn PDF document text
    • https://cdn.sqhk.co/saboxiwago/cogevhf/wusewudokixadar.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475582/normal_5ff7ff8364f44.pdfIn PDF document text
    • http://inmyshtangen.xyz/1246472672qhez2.pdfIn PDF document text
    • http://liketsven.xyz/developing_mental_toughness_in_runningv7nm2.pdfIn PDF document text
    • http://dkmz3.club/vtech_kidizoom_watch_gamesqe1vb.pdfIn PDF document text
    • http://daliadiago.com/driving_process_improvement6rz38.pdfIn PDF document text
    • https://cdn.sqhk.co/dolitife/ggigaQB/sweet_house_donuts_and_ice_cream_conway_ar.pdfIn PDF document text
    • http://myirn.icu/hero_x_zombies_apk_modcq28f.pdfIn PDF document text
    • https://cdn.sqhk.co/pozedezupase/hjIiagi/skydiving_san_diego_oceanside.pdfIn PDF document text
    • http://instasurprise.online/ralenatojopap34ci.pdfIn PDF document text
    • https://cdn.sqhk.co/tipefimex/gcEidgh/17733279127.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459787/normal_6016ce2fe2a41.pdfIn PDF document text
    • https://cdn.sqhk.co/tumosirewuw/icdjche/7803940803.pdfIn PDF document text
    • http://alcozerox.com/star_defender_pc_games_free_downloadlnzrj.pdfIn PDF document text
    • https://cdn.sqhk.co/levowexesu/LhiVgj1/32335125443.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471455/normal_6015b3bda6e47.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457838/normal_5fec1f0185349.pdfIn PDF document text
    • http://dutov.org/abraham_maslow_self_actualizationur54k.pdfIn PDF document text
    • https://cdn.sqhk.co/giganopof/egjpHyf/25956666725.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://memegimowa.epizy.com/19747710444.pdfIn PDF document text
    • http://bemurulorax.rf.gd/39793853236.pdfIn PDF document text
    • http://tikokowekujuw.epizy.com/equivalent_fractions_grade_3_worksheet.pdfIn PDF document text
    • http://favekagopu.epizy.com/42518016761.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_off0000e0a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0A1 5028 bytes
SHA-256: e3489f444c778754c00e1ab1121eba5306be6804702831528a45bc202bdd5af2
font_01_sfnt_off0000f1b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1B7 10192 bytes
SHA-256: f9e16aeb50888d12f1a3c612d3f00d405785ee02f774a83eccea0f3c1a53e9f9

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