Malicious PDF — malware analysis report

Static analysis result for SHA-256 030d027f935ed189…

MALICIOUS

PDF

92.2 KB Created: 2021-07-14 06:01:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-21
MD5: 3010dc98745ddb4483c1c24fe81ac885 SHA-1: c139acf2562e190e82cde3fba451ef25f5237f9f SHA-256: 030d027f935ed1895772321f96e1ad80cf280abfe510740fe5cbf2ab1d6fb6ea
156 Risk Score

Malware Insights

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

This PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links pointing to compromised WordPress sites, suggesting an attempt to redirect users to malicious content. The presence of multiple external URIs and link farms indicates a likely phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

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 http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b2efab0929f---zusafexedasa.pdf In PDF document text
    • http://simmsfamilyreunion.com/clients/9/98/98d47f1658d09d39d77ba56043454c9c/File/94335920594.pdfIn PDF document text
    • http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/pj5lu4rkbm16ffujdv6l2sems4/siloserutoben.pdfIn PDF document text
    • https://mattweidnerlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160898dd25d735---foxipaposuja.pdfIn PDF document text
    • http://vasilii-orlov.fun/wp-content/plugins/super-forms/uploads/php/files/0bc0ae48d435baa582ba43dfb377bc3c/somuxuxalegijeligadop.pdfIn PDF document text
    • http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d98694f5b8---55948120636.pdfIn PDF document text
    • http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/160811082d5a65---11868777537.pdfIn PDF document text
    • http://kagoshimakojintaxi.com/userfiles/file/gijokitiwuxigenisirumino.pdfIn PDF document text
    • http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be0cea67a8e---70485194150.pdfIn PDF document text
    • http://yangpupark.com/uploadfile/files/vuribijeli.pdfIn PDF document text
    • https://certifiedmoversinc.com/wp-content/plugins/super-forms/uploads/php/files/676d276085e18c23a1910401947a8964/30085897133.pdfIn PDF document text
    • http://taxilitomerice.cz/ckfinder/userfiles/files/69025529610.pdfIn PDF document text
    • https://ccveg.org/wp-content/plugins/super-forms/uploads/php/files/8t2a9osvja2hb25mtggvrm62de/xitopagisuwum.pdfIn PDF document text
    • https://www.servicioscalibrados.com/wp-content/plugins/super-forms/uploads/php/files/bc08fd297f4b672ff704d2e8d6079249/52425934887.pdfIn PDF document text
    • https://bloomlight.pl/_bloom/file/18565885500.pdfIn PDF document text
    • http://geodez.com/pliki/file/89489885800.pdfIn PDF document text
    • http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075f8548532a---38867390102.pdfIn PDF document text
    • https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/7a3def25447280fdb7b86cfad5fa7b89/22440881241.pdfIn PDF document text
    • http://danies.ru/ckfinder/userfiles/files/26146848852.pdfIn PDF document text
    • https://newat.ru/wp-content/plugins/super-forms/uploads/php/files/7a4721f4964f9672344e8481b818c826/14354992366.pdfIn PDF document text
    • http://yakutiaprime.ru/SITE/files/editor/file/11691941847.pdfIn PDF document text
    • https://www.superioreagle.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076260b39d4a---rozurinukel.pdfIn PDF document text
    • https://coil.hk/upload/files/85650605264.pdfIn PDF document text
    • https://dispomydeal.com/wp-content/plugins/super-forms/uploads/php/files/e0eb51f66dfb074ef5fb11c62d499ed3/zexelogumefokuvatovifidaw.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=miscarriage+after+seeing+heartbeatPDF link annotation
    • 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_off00010520.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10520 16932 bytes
SHA-256: 18c43430d0618c50885e5fa07c15a1b6fe962cfa4723d682bca646d14f8d11b6
font_01_sfnt_off00013154.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13154 10580 bytes
SHA-256: 01870806c769c2c0a7da651c53e154f72fa5550f6049f142a4d7f277d1601b4e
font_02_sfnt_off00014973.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14973 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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