Malicious PDF — malware analysis report

Static analysis result for SHA-256 83b377f42f865736…

MALICIOUS

PDF

84.4 KB Created: 2021-02-21 03:43:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: c2d07236e77c16cb81956ff4b57c0944 SHA-1: 59cb2a900b1f4f2f1271ccbff4ffb59faee1b097 SHA-256: 83b377f42f865736710fa889e0b256b1492f6a5b8d1faf5b8e601a4586ea2238
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://leonvi.ru/wix?keyword=agario+hacked+unblocked PDF link annotation
    • https://cdn.sqhk.co/zojixemem/fFghz3d/hp_3d_printer_price_in_pakistan.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374859/normal_6016b6cbab734.pdfIn PDF document text
    • https://cdn.sqhk.co/paxepedamaxa/ExgeggN/61649060647.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406775/normal_5ff259d12fc39.pdfIn PDF document text
    • https://cdn.sqhk.co/gozigawefo/ejjAjgy/31440526365.pdfIn PDF document text
    • https://cdn.sqhk.co/jisepozidis/IEUjhhj/dth_recharge_app_all_in_one_mobile.pdfIn PDF document text
    • https://cdn.sqhk.co/zojixemem/ibCDggf/wejebigufexokuged.pdfIn PDF document text
    • https://cdn.sqhk.co/zobelekivix/QjarYgj/pinkfong_baby_shark_costume_for_adults.pdfIn PDF document text
    • https://cdn.sqhk.co/lekusovu/jjfqIjj/clash_royale_free_gems_generator_2017.pdfIn PDF document text
    • https://cdn.sqhk.co/potasuregoz/UCoaE8n/lokasi_u_mobile_centre_kota_bharu.pdfIn PDF document text
    • https://cdn.sqhk.co/wubukuxivupe/Ricifhg/bopuvibufenubez.pdfIn PDF document text
    • https://cdn.sqhk.co/mepapogivoma/lidhcwI/dragon_quest_anime_characters.pdfIn PDF document text
    • https://cdn.sqhk.co/jedelamodafa/LHJhaZS/reversible_belt_strap.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://s3.amazonaws.com/vatakefojunib/24379353359.pdfIn PDF document text
    • http://danetuxu.rf.gd/don_t_starve_pocket_edition_guide_apk.pdfIn PDF document text
    • http://sedilipabowarad.rf.gd/56772947800.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_off00010169.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10169 5016 bytes
SHA-256: d7789176e3b76ebc92a039c5bd25fca93cc6c1da9302625d52aa08612ce31487
font_01_sfnt_off0001125b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1125B 10648 bytes
SHA-256: ba769507d76f63fc3bdbe47f7adc5fae99db2f6a62d98f6dddcf365aa8a9fd8c
font_02_sfnt_off000136be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x136BE 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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