Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f80972f37a0d01e…

MALICIOUS

PDF

81.1 KB Created: 2021-09-22 20:37:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: 793fbe47ad7fe071b31581ef9bee96d6 SHA-1: 3395cc04d6067050e9dca1cbc0297207eab0c328 SHA-256: 8f80972f37a0d01e076cd956f22914424769cc80bc8400c304587a82c28c8380
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by ClamAV as a phishing trojan and a machine learning model assigned a high probability of maliciousness. It contains numerous links to external sites, many of which are hosted on compromised CMS platforms or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of 'utm_term=parasite+full+movie+free+download+720p' in one URL indicates a lure for pirated media.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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 http://alarmy-kamery24.pl/userfiles/file/ramidufezipipo.pdf In PDF document text
    • http://jlm-kg.com/uploads/file/4761427009.pdfIn PDF document text
    • https://alteanetworks.fr/img/file/rimeleralajar.pdfIn PDF document text
    • https://deconkhoemanh.com/wp-content/plugins/super-forms/uploads/php/files/g0mjlkhivv8r24f8fpp7jid3kn/nokosubovefuxiralaf.pdfIn PDF document text
    • https://wct.goldcrownresort.com/magazine_files/files/gamonefoporozexipavo.pdfIn PDF document text
    • http://recviem.ru/img/upload/82030035775.pdfIn PDF document text
    • http://americansemitruckparts.com/d/files/44211165843.pdfIn PDF document text
    • https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/7be471da5e609641bacbc41b0a2128ef/pazomawiliwuzud.pdfIn PDF document text
    • https://mi-stores.com/basketballtotaal/images/editor/file/39790651329.pdfIn PDF document text
    • http://ebiocell.com/uploadfile/file///2021090202173529.pdfIn PDF document text
    • http://www.kickcommerce.com/userfiles/file/70399283925.pdfIn PDF document text
    • http://pphjako.pl/userfiles/file/pepixamopikimadefot.pdfIn PDF document text
    • http://fongyoskert.hu/userfiles/files/xonomigejag.pdfIn PDF document text
    • http://thechitay.com/uploads/userfiles/file/69573019688.pdfIn PDF document text
    • http://ortopediaszombathely.hu/editor_up/geziderekagaxim.pdfIn PDF document text
    • http://caythuocdangian.net/images/files/54680935410.pdfIn PDF document text
    • https://mandalaconfeccao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613cba6893fb8---vadegedekazekotamuw.pdfIn PDF document text
    • https://salwangurugram.com/files/sivavave.pdfIn PDF document text
    • http://koreadramatour.com/FileData/ckfinder/files/20210915_9DF3AD4740CF56A7.pdfIn PDF document text
    • https://cfbadalona.net/ckdata/files/tupinifudiloxumobavopimut.pdfIn PDF document text
    • http://clearspace-design.com/CKEdit/upload/files/zorusin.pdfIn PDF document text
    • https://basalyemek.com/ckfinder/userfiles/files/7090682555.pdfIn PDF document text
    • http://celesteandtorsten.wedding/images/file/futopamanijogufuzowex.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=parasite+full+movie+free+download+720pPDF link annotation
    • 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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d45d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD45D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000ec6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC6F 18176 bytes
SHA-256: 9da1268ec62a077648fff704231bb6d9969a32142937d7e52f081f1cab29a866
font_02_sfnt_off00011c2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C2A 11204 bytes
SHA-256: ccc812d6ebb7346bb24de791f3b24e9b8380ebd601fc049a340c9f3efdab9d87

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