Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1271db16e41f9ac…

MALICIOUS

PDF

70.0 KB Created: 2021-03-01 10:02:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 1a579c4894edf4ce13f8204376ee22d3 SHA-1: 8a92dc6a9c3970d1fbbaad14a74e715201e3820d SHA-256: b1271db16e41f9ac84a1b3be2a92de4ac8445783f1a5e05cf1a769ac415acf5a
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://pelibifir.ru/wb?keyword=graphic%20designer%20resume%20template%20psd PDF link annotation
    • http://x-bionic.shop/android_9_dark_theme_samsung3k5e2.pdfIn PDF document text
    • http://goodnatural.space/best_android_games_to_compete_with_friendsk5k46.pdfIn PDF document text
    • http://ighelpcenter.xyz/crossfit_journal_workout_of_the_dayokdd3.pdfIn PDF document text
    • https://zazanopub.weebly.com/uploads/1/3/2/7/132712119/6320326.pdfIn PDF document text
    • https://xesapexoxes.weebly.com/uploads/1/3/4/6/134633169/xeketuno.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420924/normal_60145a64afbea.pdfIn PDF document text
    • https://cdn.sqhk.co/samojusive/ihfiahg/dusttale_sans_theme_remix_1_hour.pdfIn PDF document text
    • https://junimadegerozo.weebly.com/uploads/1/3/4/0/134096607/nijuzidezuz.pdfIn PDF document text
    • https://cdn.sqhk.co/sogupavetut/R2FPHm5/daburoj.pdfIn PDF document text
    • https://lovivusopeme.weebly.com/uploads/1/3/6/0/136095788/e66362.pdfIn PDF document text
    • http://hdsamara.ru/a1275_transistor_datasheetavjce.pdfIn PDF document text
    • http://shmelev.pro/bivufuzefurolugafr91y.pdfIn PDF document text
    • http://likelid.xyz/31120365447rjte0.pdfIn PDF document text
    • http://health2health.online/wukabiwigwkbcu.pdfIn PDF document text
    • http://grinallex.shop/queen_platform_bed_with_headboard_storage8dq9c.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_off0000d5f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5F8 5520 bytes
SHA-256: 1546a9d10ce4ba4fe5aa83a265e5788f7163b2e9ef3c3681161989f55b90860a
font_01_sfnt_off0000e88f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE88F 10024 bytes
SHA-256: c4766ae37033a00f3253eff326258fde3e7807ebb5cf6d11e0e4331f1da15fa3