Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7c1987d0195b468…

MALICIOUS

PDF

81.9 KB Created: 2021-09-01 08:11:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: 8a2e5a62e7e94246fe44667f1828f44e SHA-1: 02fb2348847f6f7ace4af0d7d2694f0ddd28f342 SHA-256: e7c1987d0195b468c2a28ae61e1e378400aeaf335d848b55389c44ad2f2fac1d
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It functions as a link farm, containing numerous URLs that point to compromised WordPress uploads and other disposable hosting sites. These links are likely intended to redirect users to phishing pages or download further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

Heuristics 6

  • 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.
  • 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://www.ikedatosou.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a61c895cd58---14004766084.pdf In PDF document text
    • http://longchimvac.net/app/webroot/uploads/files/jiduziluvedowegedonumipep.pdfIn PDF document text
    • http://ilovechardonnayhills.com/userimages/vegasegunovarotate.pdfIn PDF document text
    • https://sanagustin.cl/files/88791674495.pdfIn PDF document text
    • https://www.litesourcenc.com/wp-content/plugins/super-forms/uploads/php/files/5c608eb975e25cf194f435d82a0e6b32/44832109822.pdfIn PDF document text
    • http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/161193d3d30d35---gusekisumufuzepir.pdfIn PDF document text
    • http://bayernglobal.de/userVZ/file/98406808788.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ecb41608d7f---wapozitisakoleme.pdfIn PDF document text
    • https://smarttactic.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160876b2c920ef---vipiniduwogenusi.pdfIn PDF document text
    • https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/86e42706d7333660ab10cc527e4baf15/dapatagudomevirexane.pdfIn PDF document text
    • http://irs-messtechnik.at/upload/mizakowuzozebevudezif.pdfIn PDF document text
    • http://murphysbeads.com/clients/54316/File/31356751080.pdfIn PDF document text
    • http://wasserentkalkung.at/ckfinder/userfiles/files/gopogexebik.pdfIn PDF document text
    • http://dermalab.pl/userfiles/file/sasim.pdfIn PDF document text
    • http://ofitecnic.es/files.ofitecnic/fck_up/file/malenavonedipixizetimosak.pdfIn PDF document text
    • http://nprofit.hk/userfiles/59501664259.pdfIn PDF document text
    • https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160ac39a24c5e7---80380473455.pdfIn PDF document text
    • https://emmaushuis.org/pages/mesijimisewafaz.pdfIn PDF document text
    • http://nsdadventist.org/FCKData/file/97279566606.pdfIn PDF document text
    • https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/8e2ca735171b3ed613298e16c53287ec/votuzofikanowagixun.pdfIn PDF document text
    • https://nhanloc.net/userfiles/file/babilexu.pdfIn PDF document text
    • http://peneleos.pl/userfiles/file/dekut.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=best+deck+in+south+park+phone+destroyerPDF 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

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_off0000d9b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9B4 10924 bytes
SHA-256: 11bd4aafd24c7f88be88e2b854b05423777410a39c6cad57cb86150a1640891f
font_01_sfnt_off0000f30a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF30A 17444 bytes
SHA-256: 167390d7bebad497e4cf11c3e6483d666446e7bac5f128bc8188d3708a6b2535
font_02_sfnt_off00012086.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12086 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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