Malicious PDF — malware analysis report

Static analysis result for SHA-256 c135615a39961da1…

MALICIOUS

PDF

76.4 KB Created: 2021-04-12 08:16:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 415ee6cde813ad73f272525c1572b224 SHA-1: 1588123b5ef6f068df054c899d919176022ec6fc SHA-256: c135615a39961da1547ded13f61923479caf52684db58c8dd9834709a5a243c2
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses brand-impersonation credential phishing. 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 0.9991

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://gipazekafasulal.weebly.com/uploads/1/3/4/6/134600210/bb59d76.pdf.
  • 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://nipisod.ru/strik?utm_term=how+many+quarts+of+oil+for+2006+infiniti+g35 PDF link annotation
    • http://ronifibofizet.medianewsonline.com/44909229408.pdfIn PDF document text
    • http://toppiksnack.xyz/desutitira8iof7.pdfIn PDF document text
    • http://kaxiwemusemoj.mypressonline.com/33116328105.pdfIn PDF document text
    • http://nuzidixiwetor.22web.org/3_digit_subtraction_with_regrouping_worksheets_2nd_grade.pdfIn PDF document text
    • http://agent-ritual495.online/99392936385n189w.pdfIn PDF document text
    • http://kuworekokinig.medianewsonline.com/44048223735.pdfIn PDF document text
    • https://gipazekafasulal.weebly.com/uploads/1/3/4/6/134600210/bb59d76.pdfIn PDF document text
    • https://tugokuwotim.weebly.com/uploads/1/3/1/3/131379049/119043.pdfIn PDF document text
    • http://mujuwowewo.22web.org/bts_anpanman_lyrics_mp4.pdfIn PDF document text
    • https://tivofemexire.weebly.com/uploads/1/3/4/0/134012880/2ccb13c7217bdb.pdfIn PDF document text
    • http://losqutoq.online/tadujoxeoho9f.pdfIn PDF document text
    • http://pro-komp-master.website/john_deere_316_accessoriesr6t53.pdfIn PDF document text
    • http://twoup-viktoria.online/minecraft_bedwars_map_download_1._16._12vrru.pdfIn PDF document text
    • https://puxezemugip.weebly.com/uploads/1/3/4/3/134311794/1223558.pdfIn PDF document text
    • https://gejiraje.weebly.com/uploads/1/3/2/7/132740564/sifolom.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/goveruduzewoxu/what_is_considered_precocious_puberty.pdfIn PDF document text
    • https://s3.amazonaws.com/zepifudoxapo/15474475562.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/55e4e9f9-6f4b-452a-a8dc-9ef7fca2414d/how_to_add_web_link_to_facebook_story.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9346081c-784b-46c3-8d3a-31eb7cc87482/73661848503.pdfIn PDF document text
    • http://laxufazekez.atwebpages.com/certificado_medico_de_salud.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a499e84-a979-412a-bfc0-26b77eace501/4803559143.pdfIn PDF document text
    • https://s3.amazonaws.com/woxojuxafopuv/33173385652.pdfIn PDF document text
    • https://s3.amazonaws.com/vatakefojunib/90618300546.pdfIn PDF document text
    • https://s3.amazonaws.com/dezajok/23736534227.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_off0000e93e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE93E 6084 bytes
SHA-256: 6e47dde544f50d4babab2e0e622c841a05817e350c5e480d97235a99401c40f4
font_01_sfnt_off0000fdf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDF3 11128 bytes
SHA-256: e0439ae4ce48527b0a3dd51860b0763da52c0f0eed4434a6273ef21b8b075c6d

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