Malicious PDF — malware analysis report

Static analysis result for SHA-256 15f2567d5726c43d…

MALICIOUS

PDF

50.3 KB Created: 2021-03-18 00:47:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: f6f6b0c26b94e0b701bf1a7a05521fec SHA-1: c3214a8beb40f712f8c0f0af98e05d53404d7a4c SHA-256: 15f2567d5726c43de2cb015c120ff0b1ebe6e091126d31d88f6ecb34aa8cf545
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7510

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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://dugedepap.ru/award?keyword=historia+de+los+derechos+humanos+resumen+pdf PDF link annotation
    • http://numulul.mygamesonline.org/12687853047.pdfIn PDF document text
    • http://electorat.org/wamureguxokoli01vk2.pdfIn PDF document text
    • http://getchambre.xyz/simplicity_broadmoor_25_48_reviewsn82oc.pdfIn PDF document text
    • http://lolkek.xyz/destination_a1_downloadb0627.pdfIn PDF document text
    • http://wojurimaxab.mywebcommunity.org/bofuzovozofix.pdfIn PDF document text
    • http://reawont.online/zevagujevuxokill7qqx.pdfIn PDF document text
    • https://67a4337f-2b79-4d04-9c1d-2578c80f4945.filesusr.com/ugd/964009_ac99d2089fdb41a7b6b6a80670f169b6.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/fffe9ae0-bb5d-49b5-be04-c5cdcc3f7d82/youtube_pinoy_channel_tv_patrol_today.pdfIn PDF document text
    • https://6acf0ca1-aa41-4771-8b91-54baff69ee7f.filesusr.com/ugd/7d1dc9_1a902a37faea4097819a72388c129c7e.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/vavabi/chloroform_isoamyl_alcohol_function.pdfIn PDF document text
    • https://s3.amazonaws.com/fuzafuzeruwit/eve_online_minmatar_ships_guide.pdfIn PDF document text
    • https://06ebba1c-c738-45d4-b58d-83edbdcc9420.filesusr.com/ugd/b14caa_6b66f4451dbc4648b0bce17d18f0a060.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/8eced398-4338-4958-aaa2-f16d42685e24/fajamug.pdfIn PDF document text
    • https://8d6920c1-aef5-45ed-b1a0-e693d63948fb.filesusr.com/ugd/0a593f_e887ea4faa3b47c08d0e2899c7256865.pdf?index=trueIn PDF document text
    • https://6ddb26ad-aa8e-4a3e-a925-5cef6fc035e1.filesusr.com/ugd/d3d820_f26d6169573b4a6c8f839725058729f0.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jasadavebaga/rabovuj.pdfIn PDF document text
    • http://tiluxusimutine.atwebpages.com/network_cabling.pdfIn PDF document text
    • https://49b821e7-ee7e-41b4-809b-d0417b8c1ddf.filesusr.com/ugd/927743_85d563708fdc4393868da2a7dd99b1b9.pdf?index=trueIn PDF document text
    • https://83f018a0-8e49-44f0-b57e-805e464a5f06.filesusr.com/ugd/10a4aa_94fa5abf01f54099bf613e250bc5eeae.pdf?index=trueIn PDF document text