Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa159d92cd10c3c5…

MALICIOUS

PDF

68.8 KB Created: 2021-03-07 18:45:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: dd4745d129628838da949aa9eeb6ac02 SHA-1: 394f2009a48487c28241db262540272da9c3e200 SHA-256: aa159d92cd10c3c580b5048aebc5837b3d7afbf71c737a44308b78eb8f5de3bc
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • 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://dugedepap.ru/wix?keyword=lol+summoner+search+euw PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4449618/normal_5fc604cae5687.pdfIn PDF document text
    • https://cdn.sqhk.co/fodexuxefeba/bjhdhdN/kaxekokofibibomukofos.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495525/normal_5fe26845aa7a3.pdfIn PDF document text
    • https://pudorexejuvaw.weebly.com/uploads/1/3/1/4/131455832/2fa6fe41889bf.pdfIn PDF document text
    • http://bewalunokonu.22web.org/73441813312.pdfIn PDF document text
    • https://resuzomesidi.weebly.com/uploads/1/3/4/7/134746605/mewixufilujisa-renopisetuw-bowazofosezub.pdfIn PDF document text
    • https://dafubadam.weebly.com/uploads/1/3/0/8/130874240/fifajesoga-wefemuje-vuzitufeba.pdfIn PDF document text
    • https://cdn.sqhk.co/wozejodes/fIjjm7O/crusher_toy_car.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485442/normal_6003a8d120971.pdfIn PDF document text
    • https://cdn.sqhk.co/vateviti/LjiiivL/jojubuvotasab.pdfIn PDF document text
    • http://vitefadu.iblogger.org/nancy_drew_the_hidden_staircase_book_report.pdfIn PDF document text
    • https://mitukuruzatag.weebly.com/uploads/1/3/5/3/135346955/5304729.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424991/normal_5fe9dac9965be.pdfIn PDF document text
    • https://rojukekodeb.weebly.com/uploads/1/3/4/6/134682316/xuridu-kazigepogufinip.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423454/normal_6003cbc5bdcdc.pdfIn PDF document text
    • https://cdn.sqhk.co/xuxofidipo/0b4rgeR/sapapinogage.pdfIn PDF document text
    • https://cdn.sqhk.co/lexoxuxoluvi/ghchhcP/police_sound_ringtones.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/joterige/bed_sheets_on_sale_at_walmart.pdfIn PDF document text
    • http://sozogakuvigoxev.epizy.com/93591763061.pdfIn PDF document text
    • https://s3.amazonaws.com/donake/bri_mobile_terbaru.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_off0000d01f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD01F 5072 bytes
SHA-256: a4895118391185ac7bee1d7ad579e2cc9679ad597a006a7f6b09926b0afaeab0
font_01_sfnt_off0000e13c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE13C 11596 bytes
SHA-256: cd07ea9cac8b0ff5a4215fe53e4a3d02a7208219f424f46a3c18e04d2d443b0d