Malicious PDF — malware analysis report

Static analysis result for SHA-256 13fcda30035699f2…

MALICIOUS

PDF

82.0 KB Created: 2021-05-17 21:37:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: dfce9a2e9128c0de6df03f34d0501d0d SHA-1: d6d2983ed5fb17a233cc5c247aff0cf1742695ce SHA-256: 13fcda30035699f277a0b49a71eb4450c27c034d0c9fb50a34836a5619af9e09
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 0.9996

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
  • 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://baarspo.ru/strik?utm_term=is+logic+pro+x+available+for+macbook+air PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4498992/normal_5fc7c99acd4ce.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421957/normal_6032c94960e50.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384851/normal_60552db9a96b8.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/bd61e594-41ee-47df-a863-21c26d5e6aac/tigejiju.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/88100299-ef5b-43f9-bd82-8a7700991e20/lopojovavefugo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50485f81-1154-46d1-bb0a-141910002f5e/subject_verb_agreement_worksheets_for_grade_10.pdfIn PDF document text
    • https://s3.amazonaws.com/selivuvumepaveb/delta_34-444_splitter.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0355661d-2f35-4639-9622-dab6e494a232/what_is_folk_culture_in_sociology.pdfIn PDF document text
    • https://s3.amazonaws.com/pipaneku/68182514251.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee2d63db-df0f-4496-9d6f-9430e9197e9f/48218600130.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2801bcb9-18fc-46ab-839c-a464419c9e7c/el_ser_uno_descargar_gratis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d6e1ff0-4b7e-4a07-b179-029cfa485e6f/organic_chemical_reactions.pdfIn PDF document text
    • https://s3.amazonaws.com/farowug/ardab_mutiyaran_movie_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/belapawerezuju/vestir_past_tense_yo_form.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/834aa05d-a1dd-4308-8af4-bf2e8c53314c/monthly_financial_report_template_powerpoint_presentation.pdfIn PDF document text
    • https://s3.amazonaws.com/wejuvono/34941781486.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/db002a11-76ad-464d-8766-004a224747bb/tipobajugufap.pdfIn PDF document text
    • https://s3.amazonaws.com/lolijexejomak/53260769451.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/21b7b7fe-f953-4284-b1d1-a2fecf43c316/where_is_pi_on_ti_36x_pro.pdfIn PDF document text
    • https://s3.amazonaws.com/daniwodug/vexokirawesuwe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/34ca6737-126b-4c06-aa0a-0c3dc48040be/pexowa.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 2

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f178.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF178 5204 bytes
SHA-256: 724f1e3958120809ce5302fdd4c69c718eea0376050e24fe3140faed86f68973
font_01_sfnt_off00010335.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10335 11632 bytes
SHA-256: 2881316b9c4c3f01e7f482d45961e0789d626494dd2c080486d85ffa815b3b76
font_02_sfnt_off00012a89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A89 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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