Malicious PDF — malware analysis report

Static analysis result for SHA-256 92e22dcc14ddb40c…

MALICIOUS

PDF

70.1 KB Created: 2021-09-16 08:06:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-31
MD5: 4a66d1c10a73e2d14ca0292812811c33 SHA-1: 4acf871582751fdc50fc163de028fd9b92959c65 SHA-256: 92e22dcc14ddb40c7e1fd7e915986bdde239d84e4a940b5e092e9d0d68cd8b5d
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document is identified as malicious by ML classifiers and ClamAV, exhibiting characteristics of a phishing lure. It contains embedded JavaScript and multiple external URIs, suggesting an attempt to redirect users to malicious websites. The heuristic 'SE_CALLBACK_LURE' further indicates a potential callback phishing or tech-support scam pattern, aiming to exploit user trust.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 70 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://wastran.ru/uplcv?utm_term=watch+bollywood+2020+indian+full+movies+online+hd+print+free+download PDF link annotation
    • http://ebslang.net/_UploadFile/Images/file/podulinozalunazetakozav.pdfIn PDF document text
    • http://yangs-ns.com/ckfinder/userfiles/files/20210914192541.pdfIn PDF document text
    • http://rlangkhan.com/upload/userfiles/files/sepowuj.pdfIn PDF document text
    • http://skupka23.ru/upload/m/50430311602.pdfIn PDF document text
    • https://best-of-geldanlagen.de/userfiles/file/94437947761.pdfIn PDF document text
    • http://modelseafarm.com/kweb/ckfinder/userfiles/files/dufeder.pdfIn PDF document text
    • https://buka.ru/sadm_files/9876299792.pdfIn PDF document text
    • http://romovi.net/sgi_userfiles/userfiles/files/54206009835.pdfIn PDF document text
    • http://resortcrimea.com/ckfinder/userfiles/files/dotezoniwibipozulurag.pdfIn PDF document text
    • http://www.xn----9sbkvfu2aex3d.xn--p1ai/ckfinder/userfiles/files/70248455542.pdfIn PDF document text
    • http://itcck.org/upload/editor/file/zokarepesazi.pdfIn PDF document text
    • http://nano-vip.com/ckfinder/userfiles/files/51429643174.pdfIn PDF document text
    • https://nonbodepsg.com/uploads/files/powomudaserewerinu.pdfIn PDF document text
    • http://www.nisbd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142abba91859---25152467890.pdfIn PDF document text
    • http://rootbeadmill.com/upload_fck/file/2021-9-1/20210901182416113297.pdfIn PDF document text
    • http://thewhitmerlawfirm.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/busokamiwumem.pdfIn PDF document text
    • http://xn--9w3b270a7kf.kr/ckfinder/userfiles/files/55341263999.pdfIn PDF document text
    • http://sva-jeanroze.com/xmedia/file/luputupevologumebosomo.pdfIn PDF document text
    • https://dortmundpools.com/contents/files/88011218748.pdfIn PDF document text
    • http://perila-vrn.ru/userfiles/file/rovidemipoge.pdfIn PDF document text
    • http://standdominica.org/files/files/teguzijukemitipesarebut.pdfIn PDF document text
    • http://kurumakaitori-one.com/js/upload/files/wojataluzegage.pdfIn PDF document text
    • http://adamlegal.com/userfiles/file/dopifusogilade.pdfIn PDF document text
    • http://fluitec.fr/ressource/site-image/files/pidedalarovuxatogoguga.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_off0000b240.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB240 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000ca52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA52 13848 bytes
SHA-256: b9cafd6dade1e0bdca3266e9045572908e70391cbbd010639739a2eb5f8b1b50
font_02_sfnt_off0000ec99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC99 11624 bytes
SHA-256: 827d597c042417475ab70f9883d6fb5164aed92335ad6c91a40f0a442ae1c5fe

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