Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfc7ad9d1b9a8168…

MALICIOUS

PDF

74.7 KB Created: 2021-03-10 12:41:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: e39722b7ca59ee0eea656fca22974eb0 SHA-1: 09a7f6920f13307137eda82be7f59b2fc004a399 SHA-256: bfc7ad9d1b9a81681ae05b30e5e1a33fa6dca9e1a5c35454d59cf247d23fb6a6
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://fokemale.ru/wix?keyword=fantasy+fighter+mod+apk+unlimited PDF link annotation
    • http://sport-stavki.fun/56577517688z0eid.pdfIn PDF document text
    • https://gitikaru.weebly.com/uploads/1/3/4/9/134901111/mugesozegikek.pdfIn PDF document text
    • http://my-favshopg.online/can_low_growth_hormone_cause_hypoglycemia5y677.pdfIn PDF document text
    • http://afracheat7.xyz/armor_of_god_kids6tyx5.pdfIn PDF document text
    • https://gefivogixofix.weebly.com/uploads/1/3/0/9/130969648/6cebb28.pdfIn PDF document text
    • http://pubgmobiie.com/gupatonadowu4m4qe.pdfIn PDF document text
    • https://takibuvekinapix.weebly.com/uploads/1/3/4/4/134456834/6309654.pdfIn PDF document text
    • https://sazezikamujut.weebly.com/uploads/1/3/1/4/131438312/6149965.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://46c0acaa-de7d-4f46-84f0-c2cf1d8ff7d9.filesusr.com/ugd/ac1638_0bdcd69d87384dfea9014f23d7eb85f7.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/22e6058d-8467-498d-8f62-1e7f6a3e5b3f/kikajijaramax.pdfIn PDF document text
    • https://s3.amazonaws.com/gaxuremewuger/46024249866.pdfIn PDF document text
    • http://vovakupalujum.onlinewebshop.net/how_to_apply_rossi_gel_polish.pdfIn PDF document text
    • https://bf6af823-cb0d-4ee8-9d5b-4f0b1de5ed24.filesusr.com/ugd/9eb187_7fb1dd9338624427b772b6772e892742.pdf?index=trueIn PDF document text
    • https://b3079848-b07e-4d89-9244-05dfa5dd91fe.filesusr.com/ugd/3ab5ed_a09eacf6b77a455babe20a5c32d1ff8f.pdf?index=trueIn PDF document text
    • http://zevesijuduma.atwebpages.com/79561649207.pdfIn PDF document text
    • https://s3.amazonaws.com/jobavo/juvavomasejulosiwim.pdfIn PDF document text
    • https://s3.amazonaws.com/nelizenejakarug/bromatologia_veterinaria.pdfIn PDF document text
    • http://newemepakirid.myartsonline.com/graco_ready_to_grow_double_stroller_chicco_car_seat.pdfIn PDF document text
    • https://s3.amazonaws.com/kobivimelelo/infective_endocarditis_guidelines_esc.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1882eeaa-4be1-4116-8c8d-5764a24cd291/1088458966.pdfIn PDF document text
    • https://s3.amazonaws.com/nupotukig/blister_in_the_sun_drum_sheet_music.pdfIn PDF document text
    • http://vidugozu.atwebpages.com/kodafovusema.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d64a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD64A 5456 bytes
SHA-256: 29ed0ad3202e37e3c8ca0871d748671a055a964a787ca797e08c3a82eed98be2
font_01_sfnt_off0000e8b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8B5 10776 bytes
SHA-256: c7a3db62786c590191f5a6a4feefe7c9e0fd269c4a0854a885def23630867d68
font_02_sfnt_off00010d24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D24 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361