Malicious PDF — malware analysis report

Static analysis result for SHA-256 708487a6beb4ac6f…

MALICIOUS

PDF

41.6 KB Created: 2021-04-25 17:06:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: fae6a1827a6c5466dabcedb5e4682ebd SHA-1: 0f84e1b42ada34ed1594f55f75c290d1ccbcccb4 SHA-256: 708487a6beb4ac6f95695905b11159e33baeb9aeeee31f179dabaee26d65c830
144 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

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 and uses an image-based lure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8879

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
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 41 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://jumiwimov.ru/strik?utm_term=how+to+check+my+system+specs+ubuntu PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4385198/normal_602ab99720c0f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444877/normal_60141fcdcafd6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385038/normal_6023d79cb5a59.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408479/normal_5fcb21573939b.pdfIn PDF document text
    • http://iceteas.space/charades_rulesyag0m.pdfIn PDF document text
    • http://supportcopyright.net/pewamidabisikutewaxerow6j2e.pdfIn PDF document text
    • http://virona.org/lumugotoruwu2432o.pdfIn PDF document text
    • https://86b7bb9a-6a0b-496c-a062-e8aa60c365d0.filesusr.com/ugd/dcf311_962fb15b63b84704acdc6f83c7cb2667.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/lerezazo/9341629291.pdfIn PDF document text
    • https://91313464-3f42-441e-b0e8-b27065d471ad.filesusr.com/ugd/ee9d3f_0f55501bd4544a339bd23b820af777fc.pdf?index=trueIn PDF document text
    • https://ad177677-9664-42cd-9bf2-17a10eef6e1d.filesusr.com/ugd/f8915e_ea21163bc1764505ba3148065b1b82ad.pdf?index=trueIn PDF document text
    • https://2987c0f4-171e-4473-b3f1-a5468658115b.filesusr.com/ugd/75ff8a_26c96de774bf449b84eaf9e306a106d4.pdf?index=trueIn PDF document text
    • https://ce099f17-eb12-430b-a452-8d789b3ee5a8.filesusr.com/ugd/aef5b7_52fe583717174976a7b07c0a2c9283c7.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/webipejonavuv/acer_aspire_5532_bios.pdfIn PDF document text
    • https://s3.amazonaws.com/voropa/2006_mercury_75hp_4_stroke_oil_filter.pdfIn PDF document text
    • https://3a0d5408-2ea1-4258-8d29-5d96341cad2c.filesusr.com/ugd/79cb75_a391ce97dd9e40308b3f4faae1fda37d.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/7d5b6b1c-2098-470c-bf20-bde4b1aaf613/the_dark_tower_7_review.pdfIn PDF document text
    • https://70010cfe-69b1-4fe9-a336-bdfe2418dc1e.filesusr.com/ugd/f1d680_cda047f377b64b5ba85ad6dc15a344b3.pdf?index=trueIn PDF document text
    • https://a22c3535-4c29-4f26-bf6b-1e631d3648e5.filesusr.com/ugd/28986c_cd8a528661774a998102e22b1485f073.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/muwemivumazulax/crossfit_wod_double_dt.pdfIn PDF document text

Open this report in the interactive analyzer, or submit your own file for analysis.