Malicious PDF — malware analysis report

Static analysis result for SHA-256 069ed378ca7dd040…

MALICIOUS

PDF

76.9 KB Created: 2021-06-29 03:33:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-08-20
MD5: e7e294616032804986f9893fb8fdc429 SHA-1: 05415746f09e92e8f5d74dfc6c116383cc5215fd SHA-256: 069ed378ca7dd040460b2c51aec1754ce882db579db1d13abe1aa0f5d2b5eb99
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous external URIs and link farm patterns, indicating an attempt to direct users to potentially malicious websites. The ClamAV detection and ML classifier strongly suggest malicious intent, likely for phishing or SEO abuse. No scripts were extracted from this sample, and the document body was unreadable.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9943

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://synerhu.ru/uplcv?utm_term=how+to+convert+a+garageband+file+to+mp3+on+mac PDF link annotation
    • https://www.uniqueartzz.com/wp-content/plugins/super-forms/uploads/php/files/46vl4dmqsh8h1bpueakkdvm37q/77671978908.pdfIn PDF document text
    • https://fitnessrev.net/wp-content/plugins/super-forms/uploads/php/files/ph71ktjr96ge78mb7koqa0o26p/64141253865.pdfIn PDF document text
    • http://bigband-ulm.de/userfiles/files/61539408157.pdfIn PDF document text
    • http://zeminyerkaplama.com/upload/ckfinder/files/zodipilafesarevejaxak.pdfIn PDF document text
    • https://www.onestopnaturalstore.ca/wp-content/plugins/super-forms/uploads/php/files/0mra8l39pijj2vvltfnr1mlpa5/88727014204.pdfIn PDF document text
    • http://targhevaticane.it/userfiles/files/nadita.pdfIn PDF document text
    • https://aprilboya.com/userfiles/file/13235464234.pdfIn PDF document text
    • https://csom.cz/wp-content/plugins/super-forms/uploads/php/files/55c1e8be67958daa970f6e8d586ac37c/96149528447.pdfIn PDF document text
    • https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/1607b116b83f03---misipofaretumotapitej.pdfIn PDF document text
    • http://lyzebrno.cz/userfiles/file/46275515492.pdfIn PDF document text
    • https://aldurra.ly/images-editeur/img/file/mizazamimiboxarusokekumu.pdfIn PDF document text
    • https://gauravkankariya.com/wp-content/plugins/super-forms/uploads/php/files/1dcondoq0cv21lrf0s1409ubh0/vowawufixeji.pdfIn PDF document text
    • http://theopenhouseclub.com/wp-content/plugins/super-forms/uploads/php/files/3070dc7207366287df2c0e2fd0d5d560/63698491744.pdfIn PDF document text
    • http://sgyscom.com/upload_fck/file/2021-6-21/20210621024605589442.pdfIn PDF document text
    • http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/160bcd5972e35e---75548998621.pdfIn PDF document text
    • http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d87558243e---tekemixosuluxigudowonuvo.pdfIn PDF document text
    • https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac10b308947---23915198099.pdfIn PDF document text
    • https://paklya.su/design/img/upload/file/bejalujazugulowijexomonon.pdfIn PDF document text
    • https://k2salight.com/wp-content/plugins/super-forms/uploads/php/files/1d5707663426330aded9de60d75c3a5f/23456590104.pdfIn PDF document text
    • http://cartonwrappingmachine.com/userfiles/file/wedopobesikenejebas.pdfIn PDF document text
    • https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/4ho4fp49mags33vndcd9ndjfg6/25745136536.pdfIn PDF document text
    • http://saamfactory.com/wp-content/plugins/super-forms/uploads/php/files/1e223e0df1597350dad3f26c69189eac/73274527505.pdfIn PDF document text
    • http://www.k-24.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089f3b4346a4---kanamavazalarubus.pdfIn PDF document text
    • http://igigeothermal.jp/userfiles/file/25386373598.pdfIn PDF document text
    • http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc5d0d0e4f---bukabovaw.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_off0000c992.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC992 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e1a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1A9 11248 bytes
SHA-256: c8de33cea933b9837e76c7ab4680e8f53889586407ed7c19d6e235f61f4e6bb9
font_02_sfnt_off0000fba0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBA0 16296 bytes
SHA-256: 908081ea45d208247cf30948fc2ac5700828cbcd5903d93a905d9d38458b583c