Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f29cbab2576bc4b…

MALICIOUS

PDF

83.9 KB Created: 2021-06-10 09:09:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: c80c187a2b3b40e203b69fa0e7422076 SHA-1: a2f2cb5f0d86aa3a67bc77c2873f97c605e49a7b SHA-256: 6f29cbab2576bc4b673536759c8dbfad35f9409abe52d88cfb3e9f009884c216
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document contains numerous URLs pointing to compromised websites, suggesting a link farm designed to redirect users to malicious content, likely a downloader for a second-stage payload. The presence of a download button lure further supports the phishing or scamming nature of this document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 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 https://crysiq.ru/uplcv?utm_term=five+nights+at+freddy%2527s+2+download+free+full+version+pc PDF link annotation
    • https://indacphuc.com/wp-content/plugins/super-forms/uploads/php/files/4eif2on9u2mtu3j6n08ljm1fsp/sukolojuzefu.pdfIn PDF document text
    • https://kolodezrus.ru/wp-content/plugins/super-forms/uploads/php/files/adf7f9994c2078c8982a7e0f1d5eac11/soduxovogixatavugukebe.pdfIn PDF document text
    • https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/c367162ceae6dfe2a24364aa8bb94407/50447034382.pdfIn PDF document text
    • http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/1606f3a0695071---38330147875.pdfIn PDF document text
    • http://gwhs79.com/clients/867100/File/xumuwelevorowozex.pdfIn PDF document text
    • https://gearforfree.com/wp-content/plugins/super-forms/uploads/php/files/kj314o902k0fdlg2sf9k9ccppf/24295973854.pdfIn PDF document text
    • https://sheenabusesandcoaches.com/userfiles/file/22175419046.pdfIn PDF document text
    • http://eko-inwest.eu/upload/file/44569048644.pdfIn PDF document text
    • https://leavereview.com/customerinterview/ckfinder/userfiles/files/92916336613.pdfIn PDF document text
    • https://bursac.net/userfiles/file/43357647588.pdfIn PDF document text
    • https://almoheetmanpower.com/public_html/userfiles/file/boteredazelikux.pdfIn PDF document text
    • http://ipsgroupjjn.org/userfiles/file/34592582992.pdfIn PDF document text
    • https://dermo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607688977c534---9740600156.pdfIn PDF document text
    • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16084dcc5de3a2---bixamiraporov.pdfIn PDF document text
    • http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ace68953348---20543267869.pdfIn PDF document text
    • https://businessservicesuk.com/userfiles/file/74046946155.pdfIn PDF document text
    • http://cleannshieldflorida.com/wp-content/plugins/super-forms/uploads/php/files/c76c6e595e18a11e1f0e30d5ecd20083/84224365515.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In 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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f8b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8B6 5676 bytes
SHA-256: f2824e1111af5906ae7f86d07ed0361c61a67578787e6d35545f62c46d81f851
font_01_sfnt_off00010c2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C2A 10968 bytes
SHA-256: eef74b69d90f909ef6c5694a573b9d3d81cf557f194c9790c1d318e88101074e
font_02_sfnt_off000131c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x131C1 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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