Malicious PDF — malware analysis report

Static analysis result for SHA-256 849e6f50040b6059…

MALICIOUS

PDF

77.8 KB Created: 2021-03-19 09:28:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f606a757683caba298c539319c74df9d SHA-1: 772cb46af1e6989e38e84b2167442dfe37dcfc87 SHA-256: 849e6f50040b6059a4b3fa6010641aaf2edd5f1e5179a9970f5c93d2ab22744e
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF document flagged as malicious by ML classifiers and ClamAV, indicating it's a phishing or trojan delivery attempt. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to exploit users through a lure related to online games.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://ponafet.ru/123?utm_term=black+desert+online+character+customization
    • http://pycnidwzxc.info/kepasopojokipemozih46qb.pdf
    • http://sunshop.pro/sex_coloring_book_pages_disneyhc1mt.pdf
    • https://cdn.sqhk.co/mozepemera/1iagjBy/73874360321.pdf
    • https://cdn.sqhk.co/fuwufupi/e9hdgdy/4d_sniper_free_online_shooting_game_fps.pdf
    • http://covidcapsule.world/faposcm9dh.pdf
    • http://amsidgi.xyz/ua_apollo_8p_manual66jwp.pdf
    • https://cdn.sqhk.co/jakovenuz/Ijahkge/78530873365.pdf
    • http://devgm.design/hormone_reset_diet_reviewsgmt20.pdf
    • http://idealica-itufficiale.website/xuwezedipurolakof4527s.pdf
    • http://noksipals.online/rally_championship_2000_cheat_codesllk1x.pdf
    • https://cdn.sqhk.co/kapidibewomu/Djagx0B/15387908980.pdf
    • http://instup.xyz/what_is_the_big_star_in_the_west_tonight0v3su.pdf
    • http://p-kavkaza.ru/kevewagau0ugt.pdf
    • https://cdn.sqhk.co/kajurineg/ihhcdji/beckett_football_card_price_guide_2018.pdf
    • http://helplnstagram-confirm.com/lofabixiviruxaxagufitazi95rkv.pdf
    • http://loveantravel.xyz/ketorolaco_formas_de_presentacion1xmub.pdf
    • https://cdn.sqhk.co/foroboreb/giVvpRS/vopekopatisi.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/6232af1c-3eb7-484c-bb8c-0284deea0ea8/what_can_you_do_with_a_masters_in_operations_management.pdf
    • https://uploads.strikinglycdn.com/files/49483e1c-8d91-43a6-a64b-9bc4674a2437/what_does_reconditioning_mean_on_a_battery_charger.pdf
    • https://uploads.strikinglycdn.com/files/c5c55a34-8088-4f8f-b161-01eaf26160bb/52094425555.pdf
    • https://uploads.strikinglycdn.com/files/dead2306-dcaa-4001-8553-9a3288bb9477/33651213441.pdf
    • https://uploads.strikinglycdn.com/files/e352e35e-4106-400f-a01c-45a370a670ee/kitogulu.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f20e.bin
88f9335ec9eb080da91c13297546a142217565c4a983b0ac4d6b2aab10c8a064
pdf-font-stream PDF embedded font (sfnt) at offset 0xF20E 5344 bytes
font_01_sfnt_off00010415.bin
a1f64c22c631767dcb2a171b2fe99cd426bffc42211e711c6de432e7cb6bbcbf
pdf-font-stream PDF embedded font (sfnt) at offset 0x10415 10536 bytes