Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c5d9bc19a672a58…

MALICIOUS

PDF

73.9 KB Created: 2021-03-29 23:03:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 17f8f222965888d53b8a23ced48037d5 SHA-1: 1140330823f272b4879c4c3257abc18caa7bd6c1 SHA-256: 0c5d9bc19a672a5867cd6c4fc922025a42180382ed4c9c926373cb0050d66f1c
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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 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://ponafet.ru/aws?utm_term=survival+backpack+kit+with+food PDF link annotation
    • http://moneyindia.site/why_are_there_chinatownsrvhf0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375896/normal_5feb077328ff5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369332/normal_6038ed5f89eb3.pdfIn PDF document text
    • https://cdn.sqhk.co/kufejeni/ibHqhi7/80s_mania_wrestling_tokens.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412388/normal_604a12a7e9614.pdfIn PDF document text
    • http://tublitalia.fun/the_chronicles_of_narnia_prince_caspian_full_movie_in_hindi_download_filmywapyehdw.pdfIn PDF document text
    • https://cdn.sqhk.co/kekagate/bozqgcT/marriage_anniversary_greetings_images_free.pdfIn PDF document text
    • https://cdn.sqhk.co/gizafimode/igthfhb/cooking_burger_shop_games.pdfIn PDF document text
    • http://nodefiw.medianewsonline.com/15459906522.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446400/normal_600296ba467bc.pdfIn PDF document text
    • http://insurancecarusa.com/comprehension_worksheet_for_second_gradexu4jv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484610/normal_6010d7c113d14.pdfIn PDF document text
    • https://cdn.sqhk.co/wimiwupo/fjcPP3o/europe_front_apk_data.pdfIn PDF document text
    • https://cdn.sqhk.co/xitilesuxiw/ghf4aia/70936668289.pdfIn PDF document text
    • https://cdn.sqhk.co/dikizumi/kijJjii/anonymous_chat_room_app.pdfIn PDF document text
    • http://wepisoja.mypressonline.com/4754747668.pdfIn PDF document text
    • http://gromstroy.com/mcdonalds_online_applicationiy1wj.pdfIn PDF document text
    • https://cdn.sqhk.co/gaduwifawide/bggjd9u/earth_wind_and_fire_devotion_meaning.pdfIn PDF document text
    • http://koparikamoze.scienceontheweb.net/kefuvevatano.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://forezepolutaju.onlinewebshop.net/30773291685.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

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e455.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE455 5524 bytes
SHA-256: 962c3685f94c58d60a970b7cc5df5f18ddb64b250efa7858e85f5dc74005c32e
font_01_sfnt_off0000f72d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF72D 10324 bytes
SHA-256: 366d92fbe0d1790bf9bc8f0e91f5673951cda8ca4b6ab0bc94615d2c75d951cd

Open this report in the interactive analyzer, or submit your own file for analysis.