Malicious PDF — malware analysis report

Static analysis result for SHA-256 fece3bcec1161b0a…

MALICIOUS

PDF

77.7 KB Created: 2021-03-24 09:07:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 32dd57f2ee88acf4650e98c6ec8dc56b SHA-1: 5b8cae8ea70314f89dbc25d78b05f5d9e4ef7793 SHA-256: fece3bcec1161b0adb3a33f9e242065186c3e190a6deeea95afce846113261a4
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 0.9995

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
  • 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/123?utm_term=apocalypto+tamil+movie+online In PDF document text
    • https://cdn.sqhk.co/xuwadezab/kijmrjg/marooned_pink_floyd_meaning.pdfIn PDF document text
    • https://cdn.sqhk.co/xuwifoviwalo/dQMQjjO/nopapakutonifokewuju.pdfIn PDF document text
    • https://cdn.sqhk.co/nobutowug/ihgO2YL/warping_definition_wikipedia.pdfIn PDF document text
    • http://geloxexomub.iblogger.org/bulujexotegem.pdfIn PDF document text
    • https://cdn.sqhk.co/tinupolureg/jh1UjjT/sitidekogajodexuno.pdfIn PDF document text
    • https://cdn.sqhk.co/puwipaneke/6jaibpe/robidigasawodiborajena.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374976/normal_5fe8e81c1b1b8.pdfIn PDF document text
    • https://cdn.sqhk.co/rorajakura/hagdGKm/63157068181.pdfIn PDF document text
    • https://cdn.sqhk.co/sozodumupof/ggt4eig/best_app_to_read_sheet_music.pdfIn PDF document text
    • https://cdn.sqhk.co/pemejurove/FhiMhja/zororepeli.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474723/normal_601ba215ad382.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4493881/normal_6050501e036fb.pdfIn PDF document text
    • https://cdn.sqhk.co/futevanu/Na2igib/vujalidazi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/18682ed0-d461-407b-9641-1f00ab025bd6/gokilez.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aad5f742-ddc6-4c01-a85d-44ce93116103/20734431350.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/49fde2d1-b6f1-480b-8b64-20c6eb5100db/how_to_open_digital_sentry_safe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fdec2b09-5cca-45ad-bf54-a37b8d798aee/xumuvibabijijasibuk.pdfIn PDF document text
    • http://mapojadesagez.epizy.com/georgia_limited_driving_permit_form.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d1c7b6d-884d-49cd-b39b-77d4b3ebb132/cuisinart_coffee_maker_keurig_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5d2c1972-87b5-4bfa-9bf9-21c824d08339/ego_21_in._manual-push_lawn_mower_lm2101.pdfIn PDF document text
    • http://lojifasipok.rf.gd/legarixofipobizaz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/06560e0f-fbac-4f09-8c7c-da787a7472b3/44252342817.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e478.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE478 4744 bytes
SHA-256: 9be88f04c29a84ac02eb5558a7ec08d011f054c5a72b2fce9273acb3315d6b2f
font_01_sfnt_off0000f482.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF482 11524 bytes
SHA-256: 8cf4ce279ebe4188f154893a6f9fc993ba6d809a3ac1980dc03656d36c218176
font_02_sfnt_off00011b4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B4B 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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