Malicious PDF — malware analysis report

Static analysis result for SHA-256 edc52c66140452d3…

MALICIOUS

PDF

85.1 KB Created: 2021-03-27 19:44:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: d19e8411644d6e10e8677fe9dd59f91a SHA-1: 5f951c3414ba816f98878c30c8524d7ee21195af SHA-256: edc52c66140452d3eb70da109e31e39a42189510973a00499f4962b1c9023d9d
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 0.9998

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://dafemum.ru/wix?keyword=abnormal+psychology+11th+edition+pdf PDF link annotation
    • https://cdn.sqhk.co/nexoratuxi/8hiidia/suzojilogazubitexuj.pdfIn PDF document text
    • https://cdn.sqhk.co/guvawatuzax/ijdRgf9/assamese_shiv_bhakti_song.pdfIn PDF document text
    • http://sikufitunowapon.22web.org/16949528277.pdfIn PDF document text
    • http://pabesubibo.66ghz.com/live_wallpaper_for_iphone_5s.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/gowupuzokowuxes/brother_label_maker_manual_pt-_65.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e49754d-78be-4c9a-bb81-858972fca20f/breadman_plus_automatic_bread_maker_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a5fbb5e-7a06-46fb-b36d-c17e69d0fbcd/14224489866.pdfIn PDF document text
    • http://wamitut.epizy.com/ffxiv_drg_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/41b3cc78-7fa6-48cd-b0ce-15c1b26c5ef1/vodugar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/718456fb-f724-4d3f-9c84-2fab16a385be/lowrance_elite_7_ti_quick_start_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6fb804b4-9d42-45ab-aaf9-3e71489b4665/gedebupelikige.pdfIn PDF document text
    • https://s3.amazonaws.com/babetafaperaxov/valibotopeburenevomepugo.pdfIn PDF document text
    • http://xejimeve.rf.gd/30512204298.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/87ee398c-7781-48b0-97d8-0aa06eece7e9/28921627444.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c54e0447-f2fc-4ba6-bd0e-da0aed96712f/boss_delay_waza_craft_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/db824786-d624-4b0c-bdab-c9a816d877ed/zepenefofarifipevuzebolo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5860ead9-14b2-4ecf-a344-81d9274f78af/67407084016.pdfIn PDF document text
    • https://s3.amazonaws.com/petikamov/why_is_my_aux_button_not_working.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_off00010a27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A27 5852 bytes
SHA-256: 5ab1745339abda57f2cc56a0432b4e410bcd6a3f4868dfa49d31d6f0639c3ef4
font_01_sfnt_off00011ded.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11DED 11612 bytes
SHA-256: d48c4180b514f02f4e3159d17344030ed385da1c1b24963c4f80148ba8727f44

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