Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b7702fc0fc49c8c…

MALICIOUS

PDF

70.4 KB Created: 2021-03-04 09:16:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: b33b6698682a0b171bf1894f9b8b35e5 SHA-1: bd000e101182d3f18e099078007ef2d8949745d2 SHA-256: 7b7702fc0fc49c8cba1ea1312987ae4fc83232d17fdb90f6d714d95225d71de1
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/award?keyword=rancilio+silvia+v3+manual PDF link annotation
    • https://cdn.sqhk.co/wowixepis/GI0gicZ/mafoforenumixawalo.pdfIn PDF document text
    • https://tevidozeji.weebly.com/uploads/1/3/4/8/134887032/gevaxonogadaf-fozala.pdfIn PDF document text
    • https://cdn.sqhk.co/fibafape/jeichib/63119814067.pdfIn PDF document text
    • http://eglo.club/garmin_vivofit_jr_2_bands_canadaw60zm.pdfIn PDF document text
    • https://cdn.sqhk.co/tezasevimab/NjhSAs5/lovecraft_country_season_2_date.pdfIn PDF document text
    • https://webapifupa.weebly.com/uploads/1/3/4/7/134706955/1722033.pdfIn PDF document text
    • https://tabivivefevevu.weebly.com/uploads/1/3/4/8/134889686/tufit.pdfIn PDF document text
    • https://fewupebotugap.weebly.com/uploads/1/3/0/7/130739906/8766757.pdfIn PDF document text
    • https://cdn.sqhk.co/vefuwatak/gehe1Gr/86063065710.pdfIn PDF document text
    • https://cdn.sqhk.co/lilanoto/Gyijjfn/can_you_get_turbo_dismount_on_xbox_one.pdfIn PDF document text
    • https://pefiritiz.weebly.com/uploads/1/3/1/4/131453982/1619375.pdfIn PDF document text
    • http://efarbok.xyz/bifunepowazewibagenud5lj2.pdfIn PDF document text
    • https://cdn.sqhk.co/fubafonu/WZjhXM1/sarah_j_harris_agent.pdfIn PDF document text
    • https://cdn.sqhk.co/jedelamodafa/pnpjaie/call_of_duty_cold_war_leaked_trailer.pdfIn PDF document text
    • https://wozizagozesa.weebly.com/uploads/1/3/4/8/134848764/4944683.pdfIn PDF document text
    • https://puwulafu.weebly.com/uploads/1/3/5/3/135329465/296275a349d47e6.pdfIn PDF document text
    • http://ig-verifiedsbadge.com/spotify_lite_mod_apk_xdafdp9k.pdfIn PDF document text
    • https://lapebezufidasaz.weebly.com/uploads/1/3/4/3/134316617/gimekapoxogufozin.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/wazotojemov/prudential_singapore_annual_report_2016.pdfIn PDF document text
    • https://s3.amazonaws.com/palevijuj/fodabeto.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_off0000d844.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD844 5080 bytes
SHA-256: 08e12aa6da2305a853979df6c3b8f8d6f87020e7859777a4284d192bc1c84cd4
font_01_sfnt_off0000e985.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE985 10184 bytes
SHA-256: a69dc22109d87505e5018c4f7a2000d5a40f16c5f683718d5b63c930b881deed

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