Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c8e7a605e86317b…

MALICIOUS

PDF

72.3 KB Created: 2021-02-26 17:08:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 7eff7cdcf6df15f3af42f958dbe98eb7 SHA-1: de7259e52daeac1279bc20d244e88af64dc26cd1 SHA-256: 3c8e7a605e86317bdb53c8b435d50072da0c58f8ba44c7c4fca08cf0c0ddfb8f
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://lozipotod.ru/award?keyword=how+to+service+my+roomba PDF link annotation
    • http://kedugobepuged.mywebcommunity.org/how_to_turn_off_ice_maker_sub-zero_550.pdfIn PDF document text
    • http://rutakaganutidu.22web.org/manual_de_organizacion_de_la_empresa_coca_cola.pdfIn PDF document text
    • https://cdn.sqhk.co/subilikiwi/heBAmBB/five_nights_at_freddy_s_coloring_book.pdfIn PDF document text
    • http://fazejajogavu.medianewsonline.com/wozakegoguromokexab.pdfIn PDF document text
    • http://lofajemami.sportsontheweb.net/who_was_the_prime_minister_of_canada_during_ww1.pdfIn PDF document text
    • https://cdn.sqhk.co/wibafozadil/gjihDif/blackpink_jennie_solo_song_lyrics_english.pdfIn PDF document text
    • https://cdn.sqhk.co/javabufe/gcijibt/science_and_warfare.pdfIn PDF document text
    • https://cdn.sqhk.co/javufikari/RQiCCOx/siren_head_vs_cartoon_cat_rap_battle_reaction.pdfIn PDF document text
    • http://roburupagosode.iblogger.org/87384543364.pdfIn PDF document text
    • https://tozikogok.weebly.com/uploads/1/3/5/3/135330875/9877769.pdfIn PDF document text
    • http://kojazunupetip.mygamesonline.org/73223828783.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://joxumokuri.epizy.com/chimney_and_stack_inspection_guidelines.pdfIn PDF document text
    • http://migusopugaj.epizy.com/rubik_cube_3x3_solution_guide.pdfIn PDF document text
    • http://sulasusiramoti.epizy.com/58983297739.pdfIn PDF document text
    • http://lixumogal.epizy.com/475175253.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_off0000df6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF6D 5268 bytes
SHA-256: e9c653965b8dfd5227ecae22217aba891bab5582a1811eb80269700ca573a711
font_01_sfnt_off0000f15b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF15B 10264 bytes
SHA-256: 6a82a79f37c92ae661f11a292e5afc45d41184ee8bbcf24b0a79f43f11567cd6