Malicious PDF — malware analysis report

Static analysis result for SHA-256 47856b1577b646eb…

MALICIOUS

PDF

82.2 KB Created: 2021-08-18 12:57:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: 41ae352fd8e0cda8af853cbc03d4df39 SHA-1: 7533483897757e9768a2c250bb52f7c7d903da7e SHA-256: 47856b1577b646eb362b7c6809b377c043663580f10c6b588319ef69bc555f34
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/c0606404a7f4f838bffad0e5628e8727/sapox.pdf In PDF document text
    • https://syntellect.ru/Repository/file/ravufodaturagubaxes.pdfIn PDF document text
    • http://traditionsradio.com/wp-content/plugins/super-forms/uploads/php/files/3qlgofi3d4bla41j5jkv4h9496/kanepizixijijixigapekite.pdfIn PDF document text
    • http://botanicgardenscafe.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b8971c1921a---50358159518.pdfIn PDF document text
    • http://intelekt.biz/uploads/pages/files/98881776124.pdfIn PDF document text
    • https://pilisilovaskert.hu/ckfinder/userfiles/files/zomalosekaxusibusigimivof.pdfIn PDF document text
    • https://driftwoodcc.com/userfiles/files/91430714936.pdfIn PDF document text
    • https://avantkart.com/wp-content/plugins/super-forms/uploads/php/files/7s8kdh0mevfnfgj8m2r535tvpn/nekovubituponumutiropij.pdfIn PDF document text
    • http://travelshops.pl/userfiles/file/lekipoxarakipewesodizivi.pdfIn PDF document text
    • https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/djhvkfssnpp094jn0ong80m2tr/kedik.pdfIn PDF document text
    • https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cae5eea3434---guxomevodexetinawubed.pdfIn PDF document text
    • https://aonetreks.com/uploads/file/nanikotu.pdfIn PDF document text
    • https://stegopackaging.com/wp-content/plugins/super-forms/uploads/php/files/mljfc4j2bkkab4qa6nh4to399j/mebeberodepuro.pdfIn PDF document text
    • http://yngc.ru/admin/ckfinder/userfiles/files/bulawuxafisigipo.pdfIn PDF document text
    • https://airflow-skateboards.com/upload/file/16071339787.pdfIn PDF document text
    • http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160ae9dbd6eb08---vavorapoxijaxup.pdfIn PDF document text
    • https://akita-inu.lv/www/files/files/lixovawifimilatewajoxix.pdfIn PDF document text
    • http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607841049de13---lulapopijuxekimedavofeb.pdfIn PDF document text
    • http://elateridae.com/images/FCKeditor/file/33852741873.pdfIn PDF document text
    • http://raduzhniy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093b4da3ea93---36377763149.pdfIn PDF document text
    • https://novahealthclinic.ca/userfiles/file/78034538270.pdfIn PDF document text
    • http://angelcabrera.com/FCKfiles/file/2864566287.pdfIn PDF document text
    • https://hamasataccessories.com/userfiles/files/fezugoxirisatufadegifuw.pdfIn PDF document text
    • https://photographerin.agency/wp-content/plugins/super-forms/uploads/php/files/3l015oqbllo95qpmuh13dqpcv1/84321893536.pdfIn PDF document text
    • http://teusz.pl/UserFiles/file/xebupesiduxufakasixud.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=subway+surfers+cheat+codes+2021+mayPDF 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_off0000dd54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD54 16468 bytes
SHA-256: 85a398c69840ce5243a5dbb94298e64d5fac897282146be58b510b869fa4a24b
font_01_sfnt_off00010831.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10831 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012048.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12048 11308 bytes
SHA-256: 832f5c98751039c8ff039b1333500d617ebc6a41d485f410c6cfa14d6d03c015