Malicious PDF — malware analysis report

Static analysis result for SHA-256 93e8780c2f05219a…

MALICIOUS

PDF

83.3 KB Created: 2021-03-21 21:20:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 38b84d54167bb4146a5d15a65dc33b38 SHA-1: b119639c50b56439fb7ded9df16f0a057cc47195 SHA-256: 93e8780c2f05219abc1ae6574068569fab4bb1b232258751848beb3d18a42894
154 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 routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://yafferge.ru/wix?keyword=bass+fitness+pdf In PDF document text
    • https://cdn.sqhk.co/wubunepan/pifAjhc/56126749070.pdfIn PDF document text
    • https://cdn.sqhk.co/nevupediwix/gchfji5/fezevoti.pdfIn PDF document text
    • https://cdn.sqhk.co/veludewozen/hbigEER/joaquin_phoenix_news_twitter.pdfIn PDF document text
    • https://cdn.sqhk.co/zofizitene/fcggyhe/free_wordpress_themes_for_writers_responsive.pdfIn PDF document text
    • http://dikagowoxi.sportsontheweb.net/43528316437.pdfIn PDF document text
    • http://vowewudimo.mypressonline.com/stay_with_me_guitar_chords.pdfIn PDF document text
    • https://cdn.sqhk.co/luwokiseg/Kniitdu/jimitodobubibojav.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/b20b50fa-1626-4b6b-a5c5-6aadfcdbd089/garmin_vivofit_3_music_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/divexikav/9704759027.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/743cb148-6d1a-4333-a884-4641c2e97d5c/dorian_gray_sabrina_imdb.pdfIn PDF document text
    • https://s3.amazonaws.com/tumuzu/mobelepexatisenatat.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b2333e05-eb9e-44b0-b4f9-6c13d7da2bf7/is_primerica_life_insurance_expensive.pdfIn PDF document text
    • https://s3.amazonaws.com/kukupunopedon/82890598491.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/825b62a4-ddc9-4dac-98e9-259d9a9aa61d/topakujewusot.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/488aec70-df17-43dc-9ef3-c2156675efd2/ximinirukebapuwesiboxaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/45f91789-1e3b-4bea-b57c-37b8c8c118b8/tegegesepapemududijide.pdfIn PDF document text
    • https://s3.amazonaws.com/vabedafozo/vidurodupidoxefajevetarin.pdfIn PDF document text
    • https://s3.amazonaws.com/zufaxepixiguxax/fishing_guide_osrs_2019.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5172a53b-f4c9-4a88-b717-454087c4d786/gitifi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b593dab6-79d4-4204-a22f-c688c56de174/76814294821.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_off00010af6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AF6 4956 bytes
SHA-256: dfe352cc29b087d4886950a3b3439ae281fc0236e261148815b642d65d44666f
font_01_sfnt_off00011bed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BED 10620 bytes
SHA-256: 41f49e11215df8aeb385f6b35150f7d9ce2b8fe9f705506a2bd97d0e09602b8b

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