Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f536b20a98f4aed…

MALICIOUS

PDF

71.7 KB Created: 2021-03-04 16:55:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 636e9ef875054d65af3f0c57b49a8004 SHA-1: 3294573c4f5990ce0f119dde6170a71c98fa2bf5 SHA-256: 2f536b20a98f4aed27344c3e995f98c2510268d391effd1eba9c2b59d36dbfc3
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://nipisod.ru/wix?keyword=vampire+the+masquerade+toreador+clanbook+pdf PDF link annotation
    • http://show-visitor.xyz/netgear_router_wps_button_not_workingwgxs6.pdfIn PDF document text
    • https://garanokuwepo.weebly.com/uploads/1/3/0/8/130874617/5878748.pdfIn PDF document text
    • http://espaceabone.com/how_do_you_program_a_directv_remote_to_an_emerson_tvebzep.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466368/normal_6002d98a03621.pdfIn PDF document text
    • http://zobotalemogi.sportsontheweb.net/air_hogs_millennium_falcon_xl_charger_cord.pdfIn PDF document text
    • http://my-credit.info/womens_nike_air_force_1_pixel_ghost_aquarjnxn.pdfIn PDF document text
    • http://4kuhd.me/34175462535c8y9l.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488314/normal_5ff2c0df58660.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413004/normal_6032ef1b2fed6.pdfIn PDF document text
    • http://sdek-24.cc/fudutoziwunagmjf2w.pdfIn PDF document text
    • http://eurostore.info/5_v_big_datanbsn7.pdfIn PDF document text
    • https://voloripilobolim.weebly.com/uploads/1/3/4/6/134635915/sasuzoweso.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480382/normal_601b0c475505c.pdfIn PDF document text
    • https://nafuvazufu.weebly.com/uploads/1/3/1/4/131407552/bevojenop-xarujukomopu-wizokefebugevaw-fatafis.pdfIn PDF document text
    • https://tedawubav.weebly.com/uploads/1/3/4/3/134376018/vikatitiduwe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/78078307-5cd1-45da-9b19-2762359c6ad5/17298872858.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee14cb2f-13a4-4390-b634-2f1867a7c15b/66613603053.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/51bd5c6b-5a7e-4548-923e-847923bf452a/is_your_learners_permit_number_the_same_as_your_license_number.pdfIn PDF document text
    • http://pulutugorivexek.atwebpages.com/piforadukajegewijibe.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_off0000daff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAFF 5688 bytes
SHA-256: cd5d0de351b4e0cc6778b09ec3021583171954514223300653ec431d684b7de2
font_01_sfnt_off0000ee2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE2F 10304 bytes
SHA-256: b6fdd9c4342ff7504ff3126c9f8d6ac638c7c419a3c69e78081287cdcc916824

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