Malicious PDF — malware analysis report

Static analysis result for SHA-256 093de6496b05de6e…

MALICIOUS

PDF

77.1 KB Created: 2021-06-26 01:29:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-08-25
MD5: b5b725eb8da366cf1339954cfcd6fd84 SHA-1: 5a52b4286a19b61d06e9f78856c03c5331b88c8a SHA-256: 093de6496b05de6e6921e877d9a9295e1bc69e3cae938a2cb95889c60e981b3d
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external websites, many of which are hosted on compromised WordPress installations or disposable domains, indicating a phishing or malware distribution attempt. The ClamAV detection and ML classifier strongly suggest malicious intent. The embedded URLs are likely used to redirect the user to malicious content, potentially exploiting PDF vulnerabilities or serving further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9943

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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.
  • 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://huntic.ru/uplcv?utm_term=steamed+broccoli+and+cauliflower PDF link annotation
    • https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/e74ff405f938a98a732376c719bfef0f/lobakivov.pdfIn PDF document text
    • http://nakatka.com/files/file/40062959032.pdfIn PDF document text
    • https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160c328a1cfbf1---24882432296.pdfIn PDF document text
    • http://daiichilogistics.com/uploads/news_file/99104871123.pdfIn PDF document text
    • https://asiatravel.kg/wp-content/plugins/super-forms/uploads/php/files/5696c87e4383fabf5bb0977519100ea0/13805377099.pdfIn PDF document text
    • https://tolgyesvolgy.hu/userfiles/file/xupofazakuvaro.pdfIn PDF document text
    • http://dush-kz.ru/uploads/fck/file/30481512403.pdfIn PDF document text
    • http://gymostrov.org/gymostrov/userfiles/file/kidatikeselis.pdfIn PDF document text
    • https://drainscovers.com/wp-content/plugins/super-forms/uploads/php/files/9be0f2997e78e0e1adb0894dcfa9465a/wibefeb.pdfIn PDF document text
    • https://digireg.cz/upload/32983235775.pdfIn PDF document text
    • http://thaiboxes.com/piceditor/file/39639974818.pdfIn PDF document text
    • https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/160a10fb498dc2---1935184520.pdfIn PDF document text
    • https://capitaleny.com/wp-content/plugins/super-forms/uploads/php/files/71100972c93f84cf7b3b44505c69dd3d/soluwidofoganizi.pdfIn PDF document text
    • https://hosvagyok.hu/userfiles/file/50448114409.pdfIn PDF document text
    • http://lichnyiybrand.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160ade1c146e84---94711603313.pdfIn PDF document text
    • https://andrejc.si/files/file/48107179361.pdfIn PDF document text
    • https://yourtuscanyguide.com/wp-content/plugins/super-forms/uploads/php/files/c27gj2vcqes48pk4h836rorrn6/palirojusejonawotujivo.pdfIn PDF document text
    • https://freedomhypnosisnyc.com/wp-content/plugins/super-forms/uploads/php/files/05c0b13a04abb29dd2e2bda1184969b5/18400969710.pdfIn PDF document text
    • https://www.oneirishrover.com/wp-content/plugins/super-forms/uploads/php/files/2fbe66dc009180a15c80eb3e15bbdc86/ligidovajawifi.pdfIn PDF document text
    • https://1877painters.com/FCKeditor/file/viwoxedarojexolufelabi.pdfIn PDF document text
    • https://anmimar.com/royal/userfiles/file/tagisazeganavata.pdfIn PDF document text
    • https://solarconsulting.org/wp-content/plugins/super-forms/uploads/php/files/c60f2df3e9dfc35ac44b1735b2432f2a/61521835715.pdfIn PDF document text
    • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/f2a6esbvl0i0hnkmqo78on52s0/jifixodivok.pdfIn PDF document text
    • https://n95america.com/wp-content/plugins/super-forms/uploads/php/files/c0be4272016777a0157a281b1839fd91/ponipumoweluzu.pdfIn PDF document text
    • https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/e9fb321a1162eeae143145ee863bb4df/12118872238.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c6c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6C0 10872 bytes
SHA-256: 5c9c1349cb7bb2deb7b938ea6b07cdf5af2e27a2ba53687de6127d8d6d153a99
font_01_sfnt_off0000dfdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFDF 17432 bytes
SHA-256: 2683c02279e2490c8fd16c187e3148e8874debc3ecda9150ae37ac0bd9393e14
font_02_sfnt_off00010d55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D55 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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