Malicious PDF — malware analysis report

Static analysis result for SHA-256 96f7ce093602a7ba…

MALICIOUS

PDF

81.7 KB Created: 2021-09-21 22:45:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: 6253249f8222e8d86fe9d5cbd5cf6d1c SHA-1: 5bb33fd6cdacac285acdd880080df2c240013906 SHA-256: 96f7ce093602a7ba4939354261d8ea9a4a3be4359d4528ad2b4204af3662d63b
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many of which point to distinct domains, suggesting a link farm or phishing lure. The presence of embedded JavaScript and a high ML classifier score further indicate malicious intent. ClamAV also detected this as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://huntic.ru/uplcv?utm_term=wild+hunt+mod+apk PDF link annotation
    • http://ufcnagykanizsa.hu/userfiles/file/tililokugivijukux.pdfIn PDF document text
    • http://splhardware.com/UploadFile/file/2021090423223873499.pdfIn PDF document text
    • https://www.champagne-cornevin.fr/ckfinder/userfiles/files/waxejanofejaselap.pdfIn PDF document text
    • http://chinalabware.net/d/files/livoseberilalinimoz.pdfIn PDF document text
    • http://aaykpn.com/uploads/editor/files/28106070227.pdfIn PDF document text
    • http://viettranslators.com/webroot/img/files/xipilamelunizukelevumib.pdfIn PDF document text
    • http://alltimescare.com/attachment/files/82024982063.pdfIn PDF document text
    • http://huspanda.com/data/ckfinder/files/favevunotabasa.pdfIn PDF document text
    • http://contrast.no/ckfinder/userfiles/files/mawemidifoz.pdfIn PDF document text
    • http://xiangzhuan.tw/upload/files/jawatonalulodu.pdfIn PDF document text
    • http://palestraarkadia.it/userfiles/files/taxujalosenewalom.pdfIn PDF document text
    • https://stayinbranson.com/ckfinder/triplebuserfiles/file/bigufefisetevoduxelem.pdfIn PDF document text
    • http://badischer-kunstverein.de/ckfinder/userfiles/files/17906876706.pdfIn PDF document text
    • http://eros-arena.name/eros/userfiles/file/72189428388.pdfIn PDF document text
    • http://hkwwta.org/userfiles/2338003370.pdfIn PDF document text
    • http://zaragozalawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/reviwusuwusepakojani.pdfIn PDF document text
    • https://ibericadearmerias.com/file/gijajafafuratifekegev.pdfIn PDF document text
    • http://itnetworkconsultingsf.com/helpdesk/app/webroot/img/userfiles/files/dawefibubuwefirivu.pdfIn PDF document text
    • http://steelfurniturecn.com/d/files/36184089960.pdfIn PDF document text
    • http://romengo.com/ckfinder/userfiles/files/74696782213.pdfIn PDF document text
    • https://www.rongoldmanlaw.com/system/js/back/ckfinder/userfiles/files/53661405066.pdfIn PDF document text
    • https://www.bramfordgc.co.uk/ckfinder/userfiles/files/gutoge.pdfIn PDF document text
    • https://equinox-e.com/upload/files/26618701590.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_off0000dc0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC0C 10440 bytes
SHA-256: 41142f5a12a80ccb8a6a5d52ece7dfcf84a764e5ae7989e045e1a7b40be32abc
font_01_sfnt_off0000f375.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF375 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010b87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B87 17588 bytes
SHA-256: 2991a54dca428ef986153fb1c89d363457b3d24908ee096771e6173cd6e1915f

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