Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9bf2e9870866188…

MALICIOUS

PDF

81.4 KB Created: 2021-04-25 15:41:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 5e0a4625176023f5e3a64550762f2595 SHA-1: 3c955e7441e849b2d4a91acddf60ea16462e552d SHA-256: a9bf2e98708661887915e5ece66ad9a81a4d97962f8cf479d8b5a60cb598d532
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://mezovuduw.ru/strik?utm_term=what+are+good+makeup+brush+sets PDF link annotation
    • http://interior.estate/mdanderson_careers_katyi8a6x.pdfIn PDF document text
    • http://gatorama.fun/what_generation_of_programming_language_is_pythonp8mt4.pdfIn PDF document text
    • https://sudiseva.weebly.com/uploads/1/3/4/4/134470115/rorudonujadamid-dogezasevawil-duwupijuze.pdfIn PDF document text
    • https://zuseluxutiv.weebly.com/uploads/1/3/4/6/134686448/tapupelibejotub.pdfIn PDF document text
    • http://100p-f.ru/tissot_1853_t461_manualkw6df.pdfIn PDF document text
    • http://natorg.fun/wifapumebukolonezafebcfxjp.pdfIn PDF document text
    • https://dubitofux.weebly.com/uploads/1/3/4/4/134458445/xetometufej-vewer-jubaja-luwofe.pdfIn PDF document text
    • http://marinarus.space/vernier_caliper_practice_problems_with_answershrurq.pdfIn PDF document text
    • http://job-finder.space/31419440391t57rq.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/zobuwubedak/28292827568.pdfIn PDF document text
    • https://s3.amazonaws.com/safago/coway_ap-1512hh_price_history.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6f238e52-f118-4db5-abc4-ab1f5168203a/common_core_math_word_problems_2nd_grade.pdfIn PDF document text
    • https://b354d503-40d1-4c97-84b4-bc0b16c12f35.filesusr.com/ugd/8c7d07_bbbfa518b37c4381ad1fccb2ee3ead3f.pdf?index=trueIn PDF document text
    • https://0eb00d84-361a-45dc-b346-1af5c8eb785c.filesusr.com/ugd/d79848_51a1fe455314433b89dd669b42c992e3.pdf?index=trueIn PDF document text
    • https://4dd4a32c-aced-41d2-87e6-7ff9ca8080d7.filesusr.com/ugd/6d6f33_75f645a978bf400c998b7be02051a5d4.pdf?index=trueIn PDF document text
    • https://53f03ce6-db0b-4f41-9bfc-6956ba41e1f4.filesusr.com/ugd/727e0f_8a7a33bdba204bac80c44deeb0d9d20c.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/a565d397-263b-4446-b8d7-50833bb28171/liftmaster_security_2.0_remote_programming.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e004145-4847-41d7-bb68-eb815cd663be/zavurug.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5b378ce-8702-4255-be12-0238657ddd8b/bob_evans_menu.pdfIn PDF document text
    • https://s3.amazonaws.com/sirilagewuga/el_guardian_entre_el_centeno_capitulo_2.pdfIn PDF document text
    • https://s3.amazonaws.com/pajeriramal/tewawesesaf.pdfIn PDF document text
    • https://s3.amazonaws.com/dazuxujepov/50983518032.pdfIn PDF document text
    • https://ed59cdd8-0d75-4634-8bb2-7afdb9da103e.filesusr.com/ugd/9cb112_e9042f4b9b1d4ca98e65d53b7b1d60c5.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/acc6f685-f7cb-4a02-b132-f2a13eed9ee3/diretomufatanenolegapux.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 8

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_off0000fd38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD38 5560 bytes
SHA-256: 43c3b6de3dd1ecd9b769d7633fa9b8db3316896722db3d58ca32919566a9a1c3
font_01_sfnt_off00010ff5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FF5 11876 bytes
SHA-256: 9668d33e4f7ad8d9a033a43617937d33bc92149f463b0487efcbca7a3804506a

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