Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7e995be06356d8a…

MALICIOUS

PDF

85.1 KB Created: 2021-09-21 11:21:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-31
MD5: fcfa2c5516a84adb2e4a19578e242fbd SHA-1: 7edc5b19c5f6a41c85653e46503ac9219fbc42d4 SHA-256: e7e995be06356d8a22828b4da5c1995d032cebd2b7cb4f77206bf06f879949fb
134 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm on disposable hosting, containing a download button lure. The numerous external URIs pointing to various domains suggest a phishing or malware distribution campaign, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=unlimited+pokecoins+in+pokemon+go PDF link annotation
    • https://qualitygums.com/userfiles/file/beliwixegepowev.pdfIn PDF document text
    • https://handinhand-daycare.com/ckfinder/userfiles/files/weranerux.pdfIn PDF document text
    • http://inoxquochoang.com/app/webroot/files/images/pages/files/2407755931.pdfIn PDF document text
    • http://dh-cell.net/ckfinder/userfiles/files/74036688694.pdfIn PDF document text
    • http://www.gonouvellezelande.com/files/22561945221.pdfIn PDF document text
    • http://skogsformedling.se/bilder_umeny/File/fededinaviwetaseraje.pdfIn PDF document text
    • http://fazendasaojudastadeu.net/fotosempresa/files/90169504773.pdfIn PDF document text
    • https://www.khaosanpools.org/ckfinder/userfiles/files/nikuxotujetexexetup.pdfIn PDF document text
    • http://eyela.kr/uploadfile/fckeditor/file/15512888692.pdfIn PDF document text
    • http://de.ruben.pl/ckfinder/userfiles/files/kawutesimivodidobag.pdfIn PDF document text
    • https://nghiepvu.udicmanpower.vn/uploads/news_file/47141007166.pdfIn PDF document text
    • http://warehousetraining.ie/images/3650576778.pdfIn PDF document text
    • https://easy2ticket.com/upload/files/xigove.pdfIn PDF document text
    • http://innotack.com/userfiles/files/30302452010.pdfIn PDF document text
    • http://www.pattyn360.com/upload/forum/files/liwajejorijalo.pdfIn PDF document text
    • http://floridare.ru/app/webroot/img/uploads/file/070307_venipa.pdfIn PDF document text
    • http://dmychadla.eu/UserFiles/File/mibixubavozuwe.pdfIn PDF document text
    • https://www.babetravelling.com/ckfinder/userfiles2/files/jiporaputavakagojabadule.pdfIn PDF document text
    • https://webbsoil.com/home/webb/public_html/ckfinder/userfiles/files/8683844458.pdfIn PDF document text
    • https://livnica-metalurg.com/images/pages/file/93990759928.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_off0000e296.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE296 10696 bytes
SHA-256: 4d3d00b13a32807a6aaffc761ab1b28b386f589c3eadb05d55cfbf5fddd4364b
font_01_sfnt_off0000fad3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAD3 19856 bytes
SHA-256: 129cfaf9160ec1bbfe1e44e3c1142c170a3a4a5436b8ebe7f5360bb2d6232426
font_02_sfnt_off00012e9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E9A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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