Malicious PDF — malware analysis report

Static analysis result for SHA-256 c17f489a0b729f7b…

MALICIOUS

PDF

88.5 KB Created: 2021-03-18 13:06:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: e54bf3a2fafd8b2f54441c518f1fc03c SHA-1: b625465970884c9b379c9c0e5de8eb05b713eada SHA-256: c17f489a0b729f7bb448288fef40c7a3a1ab64e66702cd4fa3cba30e3f777cf3
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 0.9989

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://jumiwimov.ru/strik?utm_term=how+do+you+say+my+love+in+different+languages PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4402294/normal_60388f1986c5e.pdfIn PDF document text
    • https://cdn.sqhk.co/rajexizeba/hahiVii/free_rap_music_ringtones_for_my_phone.pdfIn PDF document text
    • http://reflectionss.space/dozumufateduxemurj47y1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486367/normal_6047d437a87cd.pdfIn PDF document text
    • https://cdn.sqhk.co/jarixizotib/Rojco95/zevulirugugenutoguno.pdfIn PDF document text
    • https://cdn.sqhk.co/xavaxonad/aZ97p2T/transloc_rider_lsu.pdfIn PDF document text
    • http://onlinekartiadesi.com/washington_dc_airport_american_airlineskikrd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473445/normal_6026a78cc2ba6.pdfIn PDF document text
    • http://study-english-02.space/avengers_endgame_script_signed9vsxq.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423780/normal_600dcad5966e7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485014/normal_6046d7f6b80ce.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e319f9a-959b-4e00-b3e5-bab98b5132b0/pidira.pdfIn PDF document text
    • https://s3.amazonaws.com/fopalew/91662674300.pdfIn PDF document text
    • https://s3.amazonaws.com/bejikefowu/61776079214.pdfIn PDF document text
    • https://s3.amazonaws.com/kitakilesa/42025591241.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5ef5748-8fb5-4b70-a0a4-25c37a7e33db/danupinulijisejew.pdfIn PDF document text
    • https://s3.amazonaws.com/mujevubutukoxu/gusavuxevigepokafunotemi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f4c3187-f2b8-4e3b-9316-0c2e30924bc7/jamepuvulubesajur.pdfIn PDF document text
    • https://s3.amazonaws.com/wumodukubaru/bogasedesiborusove.pdfIn PDF document text
    • https://s3.amazonaws.com/zemunomipazikez/calendar_maker_excel_template.pdfIn PDF document text
    • https://s3.amazonaws.com/ximupuv/rogexuzowogewezowimofali.pdfIn PDF document text
    • https://s3.amazonaws.com/vosimalume/24135078008.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b7bb2306-e40a-42ed-b24c-553baf22768a/how_to_draw_digitally_for_beginners.pdfIn PDF document text
    • https://s3.amazonaws.com/wozowuledij/what_is_meant_by_system_engineering.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_off0000f1e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1E0 8472 bytes
SHA-256: 26abf91e7b418e26c029caff5fa806640e7ae05010b7693249f7e68376dfa466
font_01_sfnt_off00010e81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E81 5440 bytes
SHA-256: 1d64fe35bf6827f1ce007e32254f1adbb3792d6ed02fd002b49f6d828ea7812b
font_02_sfnt_off0001210e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1210E 16492 bytes
SHA-256: 3854adf60a0dd5b986fd0e759a6955c17fd372fb267f1a5e3e2fd910b6a586e7

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