Malicious PDF — malware analysis report

Static analysis result for SHA-256 d84bb81a74e634d9…

MALICIOUS

PDF

73.1 KB Created: 2021-02-13 21:46:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: f93510fe2cfa7defd3ac2d832a4dddb6 SHA-1: d3a947b55b41b1fca488848ffb3c148c2dc03d44 SHA-256: d84bb81a74e634d9590beecb809a568f36839904134e5040453406eb0f98cf9b
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://leonvi.ru/wix?keyword=download+goat+simulator+payday+apk PDF link annotation
    • http://abistrans.ru/luwuradisamitexac91r3.pdfIn PDF document text
    • https://nuzewotamomumaf.weebly.com/uploads/1/3/4/7/134701518/4516787.pdfIn PDF document text
    • https://fuwurukuzubefek.weebly.com/uploads/1/3/0/9/130969433/jetaf.pdfIn PDF document text
    • https://ponatuxo.weebly.com/uploads/1/3/4/5/134596183/7913068.pdfIn PDF document text
    • https://cdn.sqhk.co/bovokolel/xKhciiL/flight_club_jordans_real.pdfIn PDF document text
    • https://zemokozovoxepuj.weebly.com/uploads/1/3/0/7/130776726/8277079.pdfIn PDF document text
    • https://gegoviboz.weebly.com/uploads/1/3/4/8/134876631/2fa039.pdfIn PDF document text
    • https://bepizapumi.weebly.com/uploads/1/3/5/3/135349865/5a8010f9.pdfIn PDF document text
    • https://cdn.sqhk.co/xogedusov/AxKidij/musically_songs_2015.pdfIn PDF document text
    • http://heymama.store/the_eraser_thom_yorke_sheet_musicpvits.pdfIn PDF document text
    • http://findssldz.xyz/la_reina_del_sur_cast_1h59c4.pdfIn PDF document text
    • https://kupalupatumer.weebly.com/uploads/1/3/1/8/131857031/wiper.pdfIn PDF document text
    • http://docita.fun/tutuxutunivajubedasun7ko43.pdfIn PDF document text
    • https://cdn.sqhk.co/rarinuva/jjijNLG/last_hope_sniper_zombie_war_hack_mod_apk.pdfIn PDF document text
    • https://wumaviki.weebly.com/uploads/1/3/0/8/130874148/mizofoki_xavebazivu_xemodiro_wezekibozibom.pdfIn PDF document text
    • https://budamasut.weebly.com/uploads/1/3/4/9/134903336/bdea6819517430.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/betefowubevat/416878258.pdfIn PDF document text
    • https://s3.amazonaws.com/liluvad/sezegidomoja.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_off0000e1ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1AB 5536 bytes
SHA-256: 133a3a0a27a98b55659f4e1dfe1e55b26d66a507c9abd1392b166868ca2eb13d
font_01_sfnt_off0000f48d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF48D 10244 bytes
SHA-256: 9fccf42755fc670b781f9456e850bf157822651ebcebd4f78d3a0213cf10104a

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