Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ed2da54ff66235c…

MALICIOUS

PDF

77.0 KB Created: 2021-04-04 22:52:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: e20c5cbbbf50f98af10efc5ff9e47d7f SHA-1: 5221e3d86a89a7f45a09a3d9c02695d9d1ffa34b SHA-256: 9ed2da54ff66235cbdb6caee82af1d1dc1008c6cb7d53fcd07fe72c0eb34c904
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-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://lozipotod.ru/award?keyword=biceps+workout+at+gym+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4379474/normal_6060007db6665.pdfIn PDF document text
    • https://cdn.sqhk.co/xokebuzizo/cChgjfM/90505502981.pdfIn PDF document text
    • https://cdn.sqhk.co/xedufoga/ihijMhd/supreme_sling_bag_ss18.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404299/normal_60361ec2ed856.pdfIn PDF document text
    • https://cdn.sqhk.co/tedefoso/8hiMDxj/stuntman_ignition_ps3_trophies.pdfIn PDF document text
    • http://lulopoboxefon.scienceontheweb.net/wutoraji.pdfIn PDF document text
    • http://bagerisevi.scienceontheweb.net/lidiranudikujufifi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371005/normal_6006409a58297.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456712/normal_605afc7fdae26.pdfIn PDF document text
    • https://cdn.sqhk.co/dubutemaruxu/Hjfhcjd/stick_cricket_live_tips_and_tricks.pdfIn PDF document text
    • http://susekilimu.medianewsonline.com/9629802107.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485445/normal_60407f1974f20.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374851/normal_604bcc60c0352.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392869/normal_603caebfcf67d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418973/normal_5ffc697ba3730.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481409/normal_604010b4d1729.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494430/normal_5ffe0a913f352.pdfIn PDF document text
    • https://cdn.sqhk.co/pedidagow/jTejjjb/racing_car_2020_achievements.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379723/normal_5fca32d43ba96.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423155/normal_600ca1fc393ff.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/gixirojozogufux/irregular_verbs_list_spanish.pdfIn PDF document text
    • https://s3.amazonaws.com/lekizopiloref/laboj.pdfIn PDF document text
    • https://s3.amazonaws.com/fadadedezeker/adventure_island_4_in_1_apk.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ed57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED57 5752 bytes
SHA-256: 1ae7eff2a87a46df10838e220cec14a468c7b142db3395c0c625206cf4b8dbd5
font_01_sfnt_off000100fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100FA 11288 bytes
SHA-256: 2b7a152feaf56b61e6b2118e81cf8eb88181e674ce17c73fb1f585a8a84a83b1

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