Malicious PDF — malware analysis report

Static analysis result for SHA-256 149cf12a596d7901…

MALICIOUS

PDF

108.1 KB Created: 2021-06-29 04:14:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: c447e3ddaccf97e2dc31c528c121f78b SHA-1: 9df72cebd14fb3c39b11db6d56111969ea544079 SHA-256: 149cf12a596d790147dd5db669108387d1be2b7141c538eddb2c8a189ce35de0
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 ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The file functions as a link farm, containing numerous URLs pointing to compromised websites, likely to lure users into phishing scams or download further malware. The presence of multiple external URIs and link farm heuristics strongly suggests this is a phishing or redirection document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9797

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://philabc.ru/uplcv?utm_term=condo+association+rules+and+regulations PDF link annotation
    • https://vigiweb.cl/dinamicos/files/file/97427645896.pdfIn PDF document text
    • http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084d32c635a0---daxiloku.pdfIn PDF document text
    • http://boulderdivorcelaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160838d6ba58c1---vunasejajilawutitokefoz.pdfIn PDF document text
    • http://creativeindustries.ru/uploads/userfiles/file/96926013092.pdfIn PDF document text
    • https://rebates.forex/wp-content/plugins/super-forms/uploads/php/files/jiu54vnbhrk75v3limjtj8jmj5/94565750694.pdfIn PDF document text
    • https://shaplaconsulting.com/app/webroot/ckfinder/userfiles/files/favogojogulo.pdfIn PDF document text
    • https://bf-pomosch.ru/wp-content/plugins/super-forms/uploads/php/files/7d1kge416trg06lk6fdedc8vj1/77429487177.pdfIn PDF document text
    • https://yidinfo.net/wp-content/plugins/super-forms/uploads/php/files/pepirgute1v0fv2ohvdv2civ81/75399109195.pdfIn PDF document text
    • http://eurekaelearning.com/upload/news/file/gevodazovivi.pdfIn PDF document text
    • https://www.stamfordtaxis.com/wp-content/plugins/super-forms/uploads/php/files/8552jjs4innt6bpqi3jbsp6r1v/76671802688.pdfIn PDF document text
    • https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/160b13acde0f3d---nunedugivubutidopipunumup.pdfIn PDF document text
    • https://www.idahomedia.com/wp-content/plugins/super-forms/uploads/php/files/f2f2fb433a1804127e64c12efdacd779/48594000873.pdfIn PDF document text
    • https://vsetinrally.cz/userfiles/file/jamagebadidobimer.pdfIn PDF document text
    • http://zwickerfoto.hu/_user/file/29698757034.pdfIn PDF document text
    • https://connect.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/a69e325a0bb4e415687de6ac0fdf15d0/55223276568.pdfIn PDF document text
    • http://primehorseproperty.com/userfiles/files/62432648015.pdfIn PDF document text
    • https://oiweld.com/wp-content/plugins/super-forms/uploads/php/files/b42baa9dac9e942afb08cfae8381da22/90312850091.pdfIn PDF document text
    • https://rebates.forex/wp-content/plugins/super-forms/uploads/php/files/ha0qcvp0u6590qkt7akbairnu3/lawurodixokugawituvidel.pdfIn PDF document text
    • http://msci.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/1609b4b1c072a6---vanugegovowozupasogetapi.pdfIn PDF document text
    • https://www.pharmaright.ca/wp-content/plugins/super-forms/uploads/php/files/828lcf0hfa43vao9m7rv0nltp5/2836538011.pdfIn PDF document text
    • http://ekolojikweb.net/upld/userfiles/file/65760098633.pdfIn PDF document text
    • https://aimhc.com/userfiles/file/82506403430.pdfIn PDF document text
    • https://jagominum.com/contents//files/37499355782.pdfIn PDF document text
    • https://www.infratechgroep.nl/wp-content/plugins/super-forms/uploads/php/files/2f6ad180c12b474a82496b3194c905c1/71770561025.pdfIn PDF document text
    • http://thegioichuyendong.info/app/webroot/upload/files/71382031198.pdfIn PDF document text
    • http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/qspkhcl3p00ndiv90atj4ph4h3/miluwowasit.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.

FilenameKindSourceSize
font_00_sfnt_off00014689.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14689 10676 bytes
SHA-256: e90c3a9a87b22e34db2c29c02c9e87c3db26eae629b259dc359f5a370c313cc4
font_01_sfnt_off00015efb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15EFB 16756 bytes
SHA-256: a45437a017a6180e7778ebe08f3cd4a5c4ad9f1fb92584035680c32d6f0e1716
font_02_sfnt_off00018ac2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18AC2 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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