Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b50ef42780f5252…

MALICIOUS

PDF

66.1 KB Created: 2021-03-07 10:41:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: ee4b19aab2259a90a7ddc749e114147d SHA-1: 8b113bc0d3c387a906ea1938cbe0756fc49f2566 SHA-256: 7b50ef42780f52528499af1056d9a0e09ea5763ebb9974d2f3c3d8f473762057
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://gimoguvi.ru/award?keyword=monster+vault+4e+pdf PDF link annotation
    • http://gidilakapajuke.mywebcommunity.org/how_do_you_open_the_graco_snugride_30_stroller.pdfIn PDF document text
    • http://naworigexoz.iblogger.org/song_bechara_dil_kya_kare.pdfIn PDF document text
    • https://cdn.sqhk.co/fuxuduxexi/ymhighI/dragon_ball_raging_blast_cheat_codes_ps3.pdfIn PDF document text
    • http://mateguwokalidub.getenjoyment.net/does_graco_snuglock_work_with_click_connect.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420767/normal_5fe9e0b6ec010.pdfIn PDF document text
    • https://cdn.sqhk.co/lutidofele/zgdwhdB/74192971286.pdfIn PDF document text
    • https://cdn.sqhk.co/xavexapoxiv/jhaJ2ha/sonic_the_hedgehog_coloring_pages.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448100/normal_602c98df235e6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://b01cffea-7a05-49e8-9781-04202a21c04b.filesusr.com/ugd/d5d855_bd2c7ca55e554ae598ae994007340732.pdf?index=trueIn PDF document text
    • https://307a23dc-bb60-4906-9a68-69e45957aa19.filesusr.com/ugd/d2057d_79215053771541d0b8bb3113356a6116.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/18aeb906-34db-48ba-b37f-116b289404bf/suntrust_bank_payoff_address_nashville_tn.pdfIn PDF document text
    • http://lutepotazor.onlinewebshop.net/how_to_use_canon_mg3500_scanner.pdfIn PDF document text
    • http://suxudogakol.myartsonline.com/zamutuwiwaxeditudikes.pdfIn PDF document text
    • https://aa6d2f86-95e2-42cc-897e-6bbd71c3a116.filesusr.com/ugd/78daac_9cee069dd1564f748d021e077aa646c5.pdf?index=trueIn PDF document text
    • https://626fb5af-1d67-41cb-86ce-204163677ff0.filesusr.com/ugd/9d869b_4c575c55a3484f0dab27f3d07086007b.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a75229d-63b6-4705-8505-09921d53e9e9/ap_music_theory_sight_singing.pdfIn PDF document text
    • http://jowatazurusu.epizy.com/xudupuj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e3ce378d-f653-4391-9392-50c2f07def46/ruwobuvagafifusuvabesado.pdfIn PDF document text
    • https://c140f178-ee45-427e-91fe-a3c5f821f67e.filesusr.com/ugd/ebc5f9_fc1a2345ae5f4228a4589dc0a5a384bb.pdf?index=trueIn 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_off0000c890.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC890 5188 bytes
SHA-256: 9534341c7595d1dee0a20a47c8322d1d59c25bbe7709c499624a34aef47fa7a3
font_01_sfnt_off0000da5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA5D 9788 bytes
SHA-256: ad2cb76b675472ac2439d3fa29a5c84e0f51ec532fa6ade69a1bbdb52c89990c

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