Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c7caf5766da9641…

MALICIOUS

PDF

73.1 KB Created: 2021-02-28 17:27:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 9631672158a9f8122cb48f9610b1fcba SHA-1: 91dc495d2a783441fa2264cdce7624be96899408 SHA-256: 3c7caf5766da9641ef50e76ee0c1588a979202cd3fc55ac741c1905f91796604
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://pelibifir.ru/wix?keyword=i+am+flying+to+the+moon+hacked PDF link annotation
    • https://naroxelilokatud.weebly.com/uploads/1/3/1/3/131384214/kebakurek-rafurukup.pdfIn PDF document text
    • https://dofazodasi.weebly.com/uploads/1/3/0/8/130873943/4406100.pdfIn PDF document text
    • http://jojidasusesot.sportsontheweb.net/marriage_bible_study_lessons.pdfIn PDF document text
    • https://nunevebola.weebly.com/uploads/1/3/4/8/134846747/daxadowozifoxenuto.pdfIn PDF document text
    • http://xawamiwupajev.mygamesonline.org/gadavexupagore.pdfIn PDF document text
    • http://reznitskygallery.com/32900624071hhak.pdfIn PDF document text
    • https://cdn.sqhk.co/dofubetu/4gfhdgf/draw_a_stickman_epic_2_free_download_ios.pdfIn PDF document text
    • http://siwosupegejolop.medianewsonline.com/56747419517.pdfIn PDF document text
    • http://mnogoturov.com/subewigipologogifaximitipj71z.pdfIn PDF document text
    • https://jafuxudaxifi.weebly.com/uploads/1/3/0/7/130739212/2386642.pdfIn PDF document text
    • https://saxenivimagi.weebly.com/uploads/1/3/0/8/130813604/likukogoxanigo-vekaruka-xebananavavef-nowawaw.pdfIn PDF document text
    • https://bovuvodesibos.weebly.com/uploads/1/3/4/3/134377535/pepilajokituzud.pdfIn PDF document text
    • https://pejegenipejixe.weebly.com/uploads/1/3/4/8/134848799/5774301.pdfIn PDF document text
    • https://pevaluxuduta.weebly.com/uploads/1/3/4/5/134502983/witagujerozufifopa.pdfIn PDF document text
    • http://mon-cmbretagne.best/angry_birds_rio_game_apkpureiwh9d.pdfIn PDF document text
    • https://lebotowim.weebly.com/uploads/1/3/1/4/131438344/5bd68f97.pdfIn PDF document text
    • https://waripeseditalas.weebly.com/uploads/1/3/4/0/134012866/kodowiki-latet.pdfIn PDF document text
    • http://korogesubelokut.mypressonline.com/63605872717.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
    • http://zikoliduxa.atwebpages.com/57207696981.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_off0000d5ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5EF 5052 bytes
SHA-256: 26b5d6b658ccb8e57d4f48db974d393f44843b00fa890380fb1a5fbb28975749
font_01_sfnt_off0000e6f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6F5 10028 bytes
SHA-256: 9e863950ae81b9bab6223b168548e7abc5e342761561f1ac7151f929651fb5fd
font_02_sfnt_off00010932.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10932 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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