Malicious PDF — malware analysis report

Static analysis result for SHA-256 d24e4c63c3160e8f…

MALICIOUS

PDF

77.6 KB Created: 2021-07-14 02:14:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-13
MD5: 08aed08a1bfebfd6bb6b7d21317ac8c3 SHA-1: 5e5212ea7eb6f9229c7e73517de2d897fa66d700 SHA-256: d24e4c63c3160e8f356e41c6d8954dc08b09afe6228d61ce123c473663f53e0e
156 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains numerous links to external websites, many of which appear to be compromised or disposable hosting, suggesting a link farm designed to redirect users. The presence of these links and the overall detection indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9963

Heuristics 6

  • 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.
  • 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://wastran.ru/uplcv?utm_term=bsba+college+dongargaon PDF link annotation
    • http://amphorabeautyclub.com/campannas/file/worixudigaxiri.pdfIn PDF document text
    • http://wittlich-luexem.de/userfiles/file/zavopoxotidasomanepirasif.pdfIn PDF document text
    • https://europeancustomtailor.com/wp-content/plugins/super-forms/uploads/php/files/76653f59fdabd44386b1dd3fbe1a7ccd/sibivusi.pdfIn PDF document text
    • https://photographerin.agency/wp-content/plugins/super-forms/uploads/php/files/isacmtggr962r7umi0am96ssl1/tafuvosekadax.pdfIn PDF document text
    • http://bearings-home.com/userfiles/file/54650487975.pdfIn PDF document text
    • https://leicht-spb.ru/wp-content/plugins/super-forms/uploads/php/files/e3f2d98ca77cbf04c9f14d3251ee2b1d/wujeroresotesapugibo.pdfIn PDF document text
    • https://mudateconmigo.cl/wp-content/plugins/super-forms/uploads/php/files/aa14a860bc37cfeb9e7b3679bf4df127/11306462881.pdfIn PDF document text
    • http://hillsdalehorseboarding.com/ckfinder/userfiles/files/xulor.pdfIn PDF document text
    • http://absolutelyneon.com/userfiles/file/1302142794.pdfIn PDF document text
    • https://bimetoor.com/basefile/bimetoorir/files/vavalewamezulesodamot.pdfIn PDF document text
    • https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/e47503deee1211d9781c7d0fcdd16a06/magelisefowasidufodiruv.pdfIn PDF document text
    • http://reszke.pl/fckeditor/editor/filemanager/connectors/php/file/xunofivexenatupu.pdfIn PDF document text
    • http://bawaconstructions.com/editorData/file/boxiweg.pdfIn PDF document text
    • https://www.wflorlando.com/wp-content/plugins/super-forms/uploads/php/files/24cfe7e03ec0e3977408782035d8dca0/96407076917.pdfIn PDF document text
    • https://www.idahomedia.com/wp-content/plugins/super-forms/uploads/php/files/7f71cb66e44edb2198a996daba51f337/68455639987.pdfIn PDF document text
    • http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c0a43c18124---30216777413.pdfIn PDF document text
    • https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609da3bdbed4e---24350440157.pdfIn PDF document text
    • https://mariapolis.net/ckfinder/userfiles/files/sozeruvowiwipotegakesurat.pdfIn PDF document text
    • http://drthchowdary.net/userfiles/file/73852676078.pdfIn PDF document text
    • http://greece-ex.com/images/blog//file/82567754072.pdfIn PDF document text
    • http://bachova-terapia.sk/images/file/fudunapoluver.pdfIn PDF document text
    • http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/160c17425a7000---rugisezisuwexutez.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_off0000cc7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC7F 10548 bytes
SHA-256: fdde09618d5c246e8753fa280ae035bb0479ece042867f0dd84f420d9b0868a7
font_01_sfnt_off0000e475.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE475 17236 bytes
SHA-256: d7729df1704a250918f23cd079f0bcd1ba8cc9217245f2b1635a26203c631781
font_02_sfnt_off000111a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111A6 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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