Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e3244212eb75bd9…

MALICIOUS

PDF

79.6 KB Created: 2021-03-04 03:32:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 8a006f566f31ddb58328d3ea655a5c2e SHA-1: 14debdd66f7a963def13d7611ecba097ef91e5b4 SHA-256: 2e3244212eb75bd91a5e599fec3857e7cac911470a85c8ee2d027d1f8b6cc0c4
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://soxebez.ru/award?keyword=ipad+mini+5th+generation+cover+amazon PDF link annotation
    • https://cdn.sqhk.co/madeparev/U5hfjeP/26987645359.pdfIn PDF document text
    • https://cdn.sqhk.co/ruwonumatag/fC3Zjfk/34844124818.pdfIn PDF document text
    • http://betmoy54.com/xaxunadedoxse2st.pdfIn PDF document text
    • http://inter-kalinka.ru/3319624347798rwo.pdfIn PDF document text
    • http://busibear.com/homelite_blower_26b_not_startingkgayy.pdfIn PDF document text
    • https://cdn.sqhk.co/kukabelek/hVgdQjd/fanatical_football_mod.pdfIn PDF document text
    • http://helpcreditscore.info/zawiwusidc1oxm.pdfIn PDF document text
    • https://cdn.sqhk.co/baxorurifina/iiiiig5/xirewufexowogijomebaki.pdfIn PDF document text
    • https://cdn.sqhk.co/jivonaxadu/L5hdZiT/xisukewi.pdfIn PDF document text
    • https://vabemeraronoj.weebly.com/uploads/1/3/1/4/131452983/lorawudiwosomi-zurab.pdfIn PDF document text
    • http://sehq.xyz/67173678800tideq.pdfIn PDF document text
    • https://cdn.sqhk.co/nagigureti/Xididia/wabemilelomijatakom.pdfIn PDF document text
    • https://cdn.sqhk.co/niserutom/Fhbp5he/pilir.pdfIn PDF document text
    • http://wersita.space/82308023399tc10c.pdfIn PDF document text
    • http://fortuneocredit.com/8th_grade_math_textbook_answerso7o4u.pdfIn PDF document text
    • https://cdn.sqhk.co/gotuxixovumu/BJidDja/42638633269.pdfIn PDF document text
    • https://tekofudarazot.weebly.com/uploads/1/3/1/3/131381521/9d34dd.pdfIn PDF document text
    • https://cdn.sqhk.co/guzufaseba/jjnEV6K/borebad.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_off0000f854.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF854 5448 bytes
SHA-256: b7c460a5b438f3ad18ea4411fe34db26fbe2a77e7cca2e0b225c3ad6e92e24ea
font_01_sfnt_off00010ac5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AC5 10856 bytes
SHA-256: c55bdf197207577f56664f3af0b7a40c1928bbdc711cbc5c3db4113468b2fec0