Malicious PDF — malware analysis report

Static analysis result for SHA-256 1eb6b671cf34ec3d…

MALICIOUS

PDF

77.6 KB Created: 2021-09-19 20:02:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: 207a5b29ef23bfa9902ee6878903e9bc SHA-1: 531dd88e23e91a349c988220dc9d49b819989245 SHA-256: 1eb6b671cf34ec3d7d68e4bbafb6cf9af0046c8f112397a15720e1f4084c8592
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of links, many of which point to disposable hosting or compromised CMS upload directories, indicating a link farm designed to distribute malicious content or phish users. ClamAV also detected this file as a phishing trojan. While no scripts were explicitly extracted, the PDF structure and URL patterns strongly suggest malicious intent.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4752

Heuristics 5

  • 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
  • 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://lmleadmanagement.com/userfiles/files/75483846965.pdf In PDF document text
    • https://delaneyllc.cfonewsletter.com/ckfinder/userfiles/files/tujosivawowana.pdfIn PDF document text
    • http://moestuinwebshop.nl/userfiles/file/vigoguxusesumusejawuboden.pdfIn PDF document text
    • http://handbook.hu/upload/page/file/sukepenakibogigupujadive.pdfIn PDF document text
    • http://mobiliteit.nu/files/zitasokisiwowosup.pdfIn PDF document text
    • https://amrapalispot.com/userfiles/file/piwimaviwubikoligudokemax.pdfIn PDF document text
    • http://phanphoiongnhuahoasen.vn/upload/files/pupakutudemages.pdfIn PDF document text
    • http://arci-mp.fr/admin/File/86557041743.pdfIn PDF document text
    • https://biocoils.com/img/file/95430303846.pdfIn PDF document text
    • http://tuvantindat.com/uploads/2021-09-09/images/files/40681448208.pdfIn PDF document text
    • https://fonixkoncert.hu/upload/file/gawadinuweposaworefamo.pdfIn PDF document text
    • http://balashixa.inhome360.ru/admin/ckfinder/userfiles/files/12343684231.pdfIn PDF document text
    • http://bjavc.com/filespath/files/20210908015015.pdfIn PDF document text
    • http://magiepourenfants.com/images/mediamanager/file/bunabusaratedatax.pdfIn PDF document text
    • http://lenosada.sk/editor_uploads/files/ganofojufulugo.pdfIn PDF document text
    • http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140fff045301---93215070432.pdfIn PDF document text
    • http://huspanda.com/data/ckfinder/files/zerodixabatoneke.pdfIn PDF document text
    • https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/16145ee90cca4d---57606556808.pdfIn PDF document text
    • http://eviljoy.com/UserFiles/File/rodixarofudagepekasize.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f4bbf36a47---xerupifogukuzikalit.pdfIn PDF document text
    • http://krr-nfe.com/suratnfe/UserFiles/File/sawipow.pdfIn PDF document text
    • https://www.ideaklinikbakirkoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141dab34a0fa---fakifirujavupevijon.pdfIn PDF document text
    • http://sriraghavendratemple.com/ckfinder/userfiles/files/16120372416.pdfIn PDF document text
    • https://arizonapoolcontractor.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613527aead023---notawezexak.pdfIn PDF document text
    • http://stevis.cz/files/file/21466233313.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=the+kissing+booth+movie+watch+onlinePDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f260.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF260 10924 bytes
SHA-256: 30d16d57f4262b37d7cb408934ea44e35e118c7bac1381b79a91b24d79f26401
font_01_sfnt_off00010b9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B9E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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