Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b1f0286e8a158bc…

MALICIOUS

PDF

68.0 KB Created: 2021-03-07 10:02:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 33c233a306250a0267a73eccafd9044a SHA-1: 899e2c22a3a5438dddd08ba847dc0beacf5c8606 SHA-256: 6b1f0286e8a158bc3f8233d85e618a368d378c41a710f0a0c6e70945ecdcbba5
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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://baarspo.ru/award?keyword=garmin+gpsmap+60csx+driver+windows+10 PDF link annotation
    • https://xuxijewurinawux.weebly.com/uploads/1/3/4/6/134699439/fijeje.pdfIn PDF document text
    • http://odemebayisitrafik.com/negifefefekixoromovjoxid.pdfIn PDF document text
    • http://vknart.xyz/what_is_administrative_autonomy_meaning2x2iz.pdfIn PDF document text
    • http://fibipowokogo.sportsontheweb.net/76003669956.pdfIn PDF document text
    • http://fc-aromat.ru/biuret_test_journalhypse.pdfIn PDF document text
    • http://mosebuzixat.mywebcommunity.org/rinase.pdfIn PDF document text
    • https://lumosezuto.weebly.com/uploads/1/3/4/4/134499790/wepadamaneb_gijiditatifaden_pibozagilitef_mizajamosijuve.pdfIn PDF document text
    • http://gadatoreneperil.mygamesonline.org/32337911032.pdfIn PDF document text
    • http://konalofasu.mywebcommunity.org/edtpa_task_2_instruction_commentary.pdfIn PDF document text
    • https://kekufakaxuw.weebly.com/uploads/1/3/2/7/132740700/f3501cd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://1dab3517-3db0-43ff-9fd6-b65b51f65b60.filesusr.com/ugd/565485_d13ed50ed0954a3abb9229e351e23ec2.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/440bdab4-e080-4c09-a3ec-87e9bf8884be/the_tube_amp_book_aspen_pittman_download.pdfIn PDF document text
    • https://dbb1fad9-9c05-458f-9e32-bc0b7f65d7ec.filesusr.com/ugd/451461_e9a69c5a6eb9486098f80d1bdf8cd461.pdf?index=trueIn PDF document text
    • http://koduwutuvage.onlinewebshop.net/how_to_adjust_stride_on_fitbit_charge_2.pdfIn PDF document text
    • https://a3de454e-1598-42bb-a259-4eb69c42f179.filesusr.com/ugd/fb5067_90fe0ab59f8c49b28c1de0668eff8ae4.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/6b6d6bc1-b0a9-4900-8f36-b9b82b5debb4/43334718535.pdfIn PDF document text
    • https://c183b790-cb34-49aa-848e-1a9f2b14dda3.filesusr.com/ugd/d8966e_6c255619254d4d9abdcdb11134ba0498.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/bidivo/pidagopaguwa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7af9a0a1-0f85-4a47-a6fd-bf983b40b80a/harry_potter_editorial_salamandra_bolsillo.pdfIn PDF document text
    • https://01d7ec8a-e38e-4e33-8c76-1be31754498b.filesusr.com/ugd/24d943_725b387d20e449c99bda3c265b65a217.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/tenunud/zugodogoraw.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_off0000ccaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCAA 5960 bytes
SHA-256: f29cd8a1c9b77d77135d63938e239538c812bccfb8117b2c4861998e0a830480
font_01_sfnt_off0000e0fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0FD 9924 bytes
SHA-256: d998e64a45d2dc63ecc4b858358b9f799a68d6dc281d565b73808a4b21ca0aa8

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