Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6d4ea079915a921…

MALICIOUS

PDF

72.6 KB Created: 2021-02-13 23:41:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: c51827b8464aebe834bf6ebb335fd490 SHA-1: 07c7864734e1bb052b226007db1a37b07b4f6d9e SHA-256: e6d4ea079915a921dfb6b02e3938fabf1414061e325c3773ccb27412909d40ca
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://bologen.ru/wix?keyword=abiotic+factors+estuaries+affect PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4448986/normal_600e10492b6e6.pdfIn PDF document text
    • http://kufemotobenin.66ghz.com/xufugirosikijenexesusa.pdfIn PDF document text
    • http://zedukibawubige.22web.org/boyhood_with_gurdjieff.pdfIn PDF document text
    • http://salea.site/parmak_fence_charger_wiring_diagramwtn3q.pdfIn PDF document text
    • https://cdn.sqhk.co/xeduwukaxusa/bVmxgf2/simovewo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461763/normal_601e410a49e96.pdfIn PDF document text
    • http://mini-cam-v2.club/mtg_does_first_strike_work_blockingf9r6d.pdfIn PDF document text
    • https://cdn.sqhk.co/tezofugowura/hc2gdA4/52003037591.pdfIn PDF document text
    • http://lomigizukifomor.22web.org/scratch_installer_1._4_exe.pdfIn PDF document text
    • https://cdn.sqhk.co/durotula/hea8Bij/vanajobejagakodafaralu.pdfIn PDF document text
    • http://meetsucre.pro/solving_trigonometric_equations_worksheet_doc11l8m.pdfIn PDF document text
    • http://idealica-itufficiale.website/cabinet_minister_of_odisha_2020q5vhi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495997/normal_5fe1713b97f33.pdfIn PDF document text
    • https://cdn.sqhk.co/birenejar/Khajcu0/hashtags_for_tiktok_get_views_followers_likes.pdfIn PDF document text
    • https://cdn.sqhk.co/tunuviju/c1Ehahb/bitcoin_wallet_address_cash_app.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
    • https://s3.amazonaws.com/vidadaviwal/73349914101.pdfIn PDF document text
    • http://puligop.epizy.com/xidatu.pdfIn PDF document text
    • https://s3.amazonaws.com/muvemasoxaji/81617530056.pdfIn PDF document text
    • https://s3.amazonaws.com/rojalexipokadaz/battle_brothers_modding_guide.pdfIn PDF document text
    • http://panafinuniro.epizy.com/timisakuvejunawanozagusa.pdfIn PDF document text
    • http://zotuxegusam.epizy.com/sixosinewapotupeliz.pdfIn PDF document text
    • https://s3.amazonaws.com/wifiduxezo/lotaji.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_off0000d618.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD618 4748 bytes
SHA-256: 346113e01459f3111e87e8b2eff8e61535dc97a61f8d8fc622b80695aaba67ca
font_01_sfnt_off0000e64a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE64A 9668 bytes
SHA-256: c2f252a7b9fcaad804c6be2d42dac924b4456fadaaf998cd803745f9f6f051b5
font_02_sfnt_off0001070f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1070F 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f