Malicious PDF — malware analysis report

Static analysis result for SHA-256 959370ced44b6cb6…

MALICIOUS

PDF

73.0 KB Created: 2021-03-03 04:04:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 6e1273603ff585684f322be56ac84f49 SHA-1: 9d790238c9f29998a4914612f797d28c7c118f94 SHA-256: 959370ced44b6cb6d4247b660c64ecfbe76f86b1486239499b51f22c08f64216
146 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://leonvi.ru/award?keyword=etc+smartfade+software+download PDF link annotation
    • http://tehnopolis.org/manualidades_de_halloween_con_material_recicladofznox.pdfIn PDF document text
    • http://gbo.guru/62357146762cwgrs.pdfIn PDF document text
    • http://dayzcommunity.info/maytag_gemini_oven_element_replacement1q9qr.pdfIn PDF document text
    • https://cdn.sqhk.co/pigevikuwi/bMCWNgd/43138387266.pdfIn PDF document text
    • https://cdn.sqhk.co/xuteposidobi/jifRfo6/85960890348.pdfIn PDF document text
    • https://cdn.sqhk.co/digipexula/jghdjiv/kukabebejarogakit.pdfIn PDF document text
    • http://pogadai.xyz/237705896847tuxf.pdfIn PDF document text
    • http://naturebiolog.fun/72451943443p8057.pdfIn PDF document text
    • http://jirafka.space/new_york_guide_book_2019nclbr.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450156/normal_5ff5b8520123e.pdfIn PDF document text
    • https://cdn.sqhk.co/kugefiruxat/cdjdjcQ/gts_companion_ios.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459481/normal_600c16c5ccea4.pdfIn PDF document text
    • http://podjem2.club/roblox_game_online_free43j7j.pdfIn PDF document text
    • http://filanion.online/xugoj5iicl.pdfIn PDF document text
    • http://podeves.xyz/internet_archive_musicnhkbq.pdfIn PDF document text
    • http://scrlt.xyz/kunaxoxulelefokejivar6eth.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e1a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1A2 5216 bytes
SHA-256: f9094d106fe6383a1c125fa7acc6ca5b135d51d8b204bef5c0b96f9c713ed35a
font_01_sfnt_off0000f35c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF35C 10468 bytes
SHA-256: 80bff5866133f6b42169d0ecaf91d21497f25d76094905fdd4e3db025f507202