PDF malware analysis — malicious · 1f5c95b899e06d44

MALICIOUS

PDF

96.6 KB Created: 2021-06-30 05:16:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-08-25

MD5: bbb850897b24af072914979ccf7d7259 SHA-1: a114d57900ea639ab3fb8a524834cf24850ec33e SHA-256: 1f5c95b899e06d442e2519fb8388ba610c636f89d5b086b563a2b73685afebc0

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier, indicating malicious intent. It functions as a link farm, containing numerous URLs pointing to compromised WordPress sites and other disposable hosting, likely to lure users into phishing scams or download further malware. The document body is heavily obfuscated and appears to be generated content rather than user-readable text.

Machine Learning

Nyx PDF Classifier malicious score 0.9936

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://queure.ru/uplcv?utm_term=until+the+philosophy+which+hold+one+race+superior PDF link annotation
- http://asbufestival.com/uploads/FCK_files/file/lageraxusolabazisetiniz.pdfIn PDF document text
- https://mytutr.com/wp-content/plugins/super-forms/uploads/php/files/012115844f1413f98d6cf31652ef025e/luduvonuledutorax.pdfIn PDF document text
- https://awlights.com/wp-content/plugins/super-forms/uploads/php/files/b61984acdff51233a057f1f502389b22/7266466500.pdfIn PDF document text
- https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/707cb2411de4b3d19d06defef2d30531/64522201670.pdfIn PDF document text
- http://taskentcompany.com/userfiles/file/42543511047.pdfIn PDF document text
- http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608311e05c6b5---nizogigimujani.pdfIn PDF document text
- https://seroinstitute.com/wp-content/plugins/super-forms/uploads/php/files/1f180a1cbcedb42cba2d04d2f81e0e60/sotinixumoliwajisujosi.pdfIn PDF document text
- https://ottenburger.com/userfiles/file/12921657177.pdfIn PDF document text
- http://zonazero.es/userfiles/file/visunuluzewiguwofizuja.pdfIn PDF document text
- http://jorkurojus.com/userfiles/file/xomabab.pdfIn PDF document text
- https://fonixkoncert.hu/upload/file/72203570445.pdfIn PDF document text
- https://luxurytravel-show.com/wp-content/plugins/super-forms/uploads/php/files/660600985073ad4ce9eebbdcfccac06f/nisezodefagan.pdfIn PDF document text
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d994219c582---luzokuzugav.pdfIn PDF document text
- https://bokseinstituttet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16072bf110c5cc---vusokiwofupi.pdfIn PDF document text
- https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16096627d88b4a---senixobepidabusifiwi.pdfIn PDF document text
- https://aashianarealty.com/file/wugenokobujidiwajulexar.pdfIn PDF document text
- https://topclassgreenery.nl/images/file/58086940844.pdfIn PDF document text
- https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/c2916f785d4c3ad3b7aafecdcfc84088/3659017830.pdfIn PDF document text
- https://archltginc.com/wp-content/plugins/super-forms/uploads/php/files/b10915c61fc4d26706090d6801d85f5b/72183982616.pdfIn PDF document text
- https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/up77d7su9qo67lkij63mogkgsu/peravota.pdfIn PDF document text
- https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/u3ckkt5g9a6tuvvmbpn1erppsp/7533445120.pdfIn PDF document text
- https://binarbaidrealestate.com/public_html/userfiles/file/63615756433.pdfIn PDF document text
- https://vidolamerica.org/wp-content/plugins/super-forms/uploads/php/files/9f727887e6818a4d56fd2ebf1ee5bfc2/xifide.pdfIn PDF document text
- http://bluekeydigital.com/images/pic/file/gavaretomomaz.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000115ad.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x115AD	10916 bytes
SHA-256: `f87728083d2b01465dbbb25157cfe0a03473cb88a2d2b0ab33499b0ae7deb309`
`font_01_sfnt_off00012efa.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12EFA	17852 bytes
SHA-256: `ea98b1959a75e84718c34a32ef86546372d928c008109198ed92e9a952c95efc`
`font_02_sfnt_off00015d46.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x15D46	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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