Malicious PDF — malware analysis report

Static analysis result for SHA-256 f86324ad4387d848…

MALICIOUS

PDF

67.8 KB Created: 2021-02-11 18:22:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: f6b3afadc4f8c53c2ae10400a0e1a738 SHA-1: ff34856252a43a6216558c964fd32a45c0d1c630 SHA-256: f86324ad4387d848d752a3f34776101bad87fe0b7f2ea3651418c869e8de2ca9
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 6

  • 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.
  • 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=los+adjetivos+posesivos+worksheet+answer+key PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4494452/normal_60220ef74444f.pdfIn PDF document text
    • https://cdn.sqhk.co/bitaxukezor/5Xv2oWw/ddpai_x2_pro_dual_dash_cam.pdfIn PDF document text
    • https://ridoduna.weebly.com/uploads/1/3/4/5/134528127/3fc8f0.pdfIn PDF document text
    • http://vostokzapad.su/yaadon_ki_barat_film_songsbb80y.pdfIn PDF document text
    • https://cdn.sqhk.co/fodumisux/dsja9ji/zombie_killer_car_squad_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/zivuputid/fijgigi/vizedaburujukapo.pdfIn PDF document text
    • http://womenita.fun/bob_anderson_stretching4ag4d.pdfIn PDF document text
    • http://iblack.space/foxugarodeujf5.pdfIn PDF document text
    • https://cdn.sqhk.co/muxaferamet/ihLjbig/27019628823.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486778/normal_5ffa804de42db.pdfIn PDF document text
    • https://zopokobo.weebly.com/uploads/1/3/1/3/131383813/4702600.pdfIn PDF document text
    • https://cdn.sqhk.co/gejikofoxaf/rhfhaHu/her_story_devotional_book.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475719/normal_6007b13143690.pdfIn PDF document text
    • http://bilkan.fun/philips_tv_manualspi5jp.pdfIn PDF document text
    • https://cdn.sqhk.co/kinanekoxo/jegiiae/free_kicks_fifa_2008.pdfIn PDF document text
    • https://cdn.sqhk.co/pidodalatip/OzUiege/fefix.pdfIn PDF document text
    • https://bejizasidofivi.weebly.com/uploads/1/3/4/2/134234705/7795e52010.pdfIn PDF document text
    • https://cdn.sqhk.co/tiwefuxab/Pijqhg2/free_litecoin_earning_app.pdfIn PDF document text
    • https://bujubupe.weebly.com/uploads/1/3/1/4/131437121/1445712.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414871/normal_5ff5a36762894.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449399/normal_6024bac6b0176.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gotuziput.epizy.com/macaron_template_walmart.pdfIn PDF document text
    • http://pupovedifa.rf.gd/grammar_worksheet_for_class_8_cbse.pdfIn PDF document text
    • http://gavutubawoxin.epizy.com/58448155769.pdfIn PDF document text
    • http://xifawuzegeliwag.rf.gd/a_s_e_r_full_form.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_off0000ccac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCAC 5348 bytes
SHA-256: 63b1bae02e6dc8967c2245ab4fbfb481d887f744ce3c3a76e0c5b028519e935e
font_01_sfnt_off0000defc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEFC 10036 bytes
SHA-256: c666c1807d2aaf6a10d67cc47cbb7606dab5ef49d64f5f8ed1b9fe7f836f23e6

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