Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb59d723603f82d9…

MALICIOUS

PDF

75.1 KB Created: 2021-04-23 03:46:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 6fe19444a9fc70c601f4318ca0a9712b SHA-1: 19eb88c1fcb463bd87518b73ae7a7d4345ac8d4c SHA-256: cb59d723603f82d92c9208edfb2f977a32cec7369acf7d0167d7b7bfde436390
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a significant number of external links, identified as a link farm, with many pointing to disposable hosting. The ClamAV detection 'Pdf.Phishing.Trojan' and the presence of numerous URLs suggest a phishing or malicious redirection scheme. While no scripts were explicitly extracted, the PDF structure and URL patterns are indicative of malicious intent, likely to lead users to compromised or phishing sites.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4828

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://maypoin.ru/strik?utm_term=what+is+red+box+cards+against+humanity PDF link annotation
    • https://vowipolijej.weebly.com/uploads/1/3/4/7/134713390/1178239.pdfIn PDF document text
    • https://xufizuwerab.weebly.com/uploads/1/3/0/7/130738786/76c7fc.pdfIn PDF document text
    • http://zasoremejoka.iblogger.org/sonutob.pdfIn PDF document text
    • https://libakitaxejadeg.weebly.com/uploads/1/3/4/0/134096258/2530531.pdfIn PDF document text
    • http://pakijuzovukuw.22web.org/norme_afnor_z44_005.pdfIn PDF document text
    • https://kimimidinom.weebly.com/uploads/1/3/1/4/131453749/kifokudodelanez.pdfIn PDF document text
    • https://cdn.sqhk.co/tefozakozup/gcBrdgj/tamil_ringtones_app_free_download.pdfIn PDF document text
    • http://gakivako.iblogger.org/fesupirosav.pdfIn PDF document text
    • https://cdn.sqhk.co/gobajejuz/jdgi9gf/final_fantasy_dimensions_review.pdfIn PDF document text
    • https://zewerigavuj.weebly.com/uploads/1/3/2/6/132681779/rulapomox_zurenonobefal_logogulizotim.pdfIn PDF document text
    • https://kolojadulosa.weebly.com/uploads/1/3/1/3/131397946/xobexafebutixu.pdfIn PDF document text
    • https://cdn.sqhk.co/gokarunedod/WhbptYT/54108220223.pdfIn PDF document text
    • https://texodixoxi.weebly.com/uploads/1/3/1/8/131857215/radupawofutaxoxefe.pdfIn PDF document text
    • https://ferofetilusef.weebly.com/uploads/1/3/5/3/135346026/wisuviv.pdfIn PDF document text
    • https://cdn.sqhk.co/runusamopit/chaywhe/happy_birthday_hubby_cake_images_download.pdfIn PDF document text
    • https://tebafazar.weebly.com/uploads/1/3/4/2/134265880/tamowimotupa.pdfIn PDF document text
    • http://xuvotawelotito.epizy.com/8d_problem_solving_technique.pdfIn PDF document text
    • http://tidovagupuwosep.rf.gd/definicion_de_cancer_de_pancreas.pdfIn PDF document text
    • https://s3.amazonaws.com/jadudusujuje/acronis_true_image_2018_bootcd.pdfIn PDF document text
    • https://s3.amazonaws.com/posufij/91044795753.pdfIn PDF document text
    • http://momoxorepuvo.epizy.com/xugijinupapeja.pdfIn PDF document text
    • http://desetezovadu.epizy.com/lividagezivezed.pdfIn PDF document text
    • https://s3.amazonaws.com/wemazun/32499203404.pdfIn PDF document text
    • https://s3.amazonaws.com/dibedamoka/xumazesojuvewomitobaride.pdfIn PDF document text
    • https://s3.amazonaws.com/satulibaren/50319087578.pdfIn PDF document text
    • http://sapeduz.epizy.com/kodoxuv.pdfIn PDF document text

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