Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5e59220a3cbc770…

MALICIOUS

PDF

69.2 KB Created: 2021-02-05 19:55:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 7bb6148989d102c373a653deae4f8f16 SHA-1: 8bd487269f17e2d24f7c4d367eb139cadec167b8 SHA-256: e5e59220a3cbc77056d78ea4cbae69e1baf8e705d1b26a846b37afb1b751a0af
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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://druttle.ru/123?utm_term=indio+water+authority+standard+drawings PDF link annotation
    • https://dogenirifalalu.weebly.com/uploads/1/3/0/7/130775866/3b98e0c75ab8d2.pdfIn PDF document text
    • https://rufajesovulibo.weebly.com/uploads/1/3/4/2/134235528/pedusunobu-sokuzamubosotu.pdfIn PDF document text
    • https://sepanafawo.weebly.com/uploads/1/3/4/3/134316973/9937313.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465007/normal_6006fd677d904.pdfIn PDF document text
    • https://kamobukumigudeg.weebly.com/uploads/1/3/1/0/131069934/4496797.pdfIn PDF document text
    • https://puxugewukuniw.weebly.com/uploads/1/3/4/4/134492634/7622830.pdfIn PDF document text
    • https://cdn.sqhk.co/kojetovukufo/C6hbSji/chicken_invaders_3_play_online_yahoo_games.pdfIn PDF document text
    • https://xaredeni.weebly.com/uploads/1/3/1/8/131871979/2897200.pdfIn PDF document text
    • https://wuguxobexo.weebly.com/uploads/1/3/0/7/130739488/joximulodufureboba.pdfIn PDF document text
    • https://cdn.sqhk.co/tutabudoxuwa/hJpLygc/call_of_duty_mobile_battle_royale_new_mode.pdfIn PDF document text
    • https://cdn.sqhk.co/govazofaj/K9nhjDM/domobekoxasapufexepivolo.pdfIn PDF document text
    • https://zatakigufexip.weebly.com/uploads/1/3/0/7/130738978/narogabanamazisusu.pdfIn PDF document text
    • https://bobiguwifuza.weebly.com/uploads/1/3/5/9/135966914/36a3b2a71b.pdfIn PDF document text
    • https://napuraviseso.weebly.com/uploads/1/3/4/3/134322211/gibubetar_rulizo_kapido.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494429/normal_6011b4b37e048.pdfIn PDF document text
    • https://cdn.sqhk.co/jomububorava/aiagfaO/71800707316.pdfIn PDF document text
    • https://nigukaxo.weebly.com/uploads/1/3/1/4/131453065/3218144.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/bakoloj/rabivovabejor.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_off0000d105.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD105 5188 bytes
SHA-256: 6688ed2f818955873c2819e778759fc73827db7d9fa88404e5a6eff2d5416704
font_01_sfnt_off0000e2bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2BC 10412 bytes
SHA-256: 4f491a0486e6bf319e6168ca9d18acfb1f7d82eeb83e11802794e299179eb636