Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6c6632935764e77…

MALICIOUS

PDF

62.7 KB Created: 2021-03-05 09:34:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 0c4a3c8d26026c13d990fc16cd40dedb SHA-1: d26316769fd5da42acb1899a29f37255926e3b27 SHA-256: a6c6632935764e7764980f6b03d63d3af253e8efa8078b60e69363925c3fa6d8
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9136

Heuristics 4

  • 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.
  • 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 https://zajinet.ru/award?keyword=taxi+driver+translation+in+spanish PDF link annotation
    • http://homeolimp.com/xulovonakugojuvavtfe4k.pdfIn PDF document text
    • http://vanimerukaguto.scienceontheweb.net/bazugogu.pdfIn PDF document text
    • http://gafabotipunofu.mywebcommunity.org/23605381892.pdfIn PDF document text
    • http://sunufosabupes.scienceontheweb.net/hp_1102w_wireless_setup_windows_10.pdfIn PDF document text
    • http://allfreebets.ru/mojevixadumubewigefuvize3aa1w.pdfIn PDF document text
    • http://rukozhop-guide.com/nixafunafezuzudezeropovdkjl7.pdfIn PDF document text
    • http://setokanekema.mygamesonline.org/najitivaduvibugab.pdfIn PDF document text
    • http://zebiripu.mygamesonline.org/betuzuletofutizam.pdfIn PDF document text
    • http://outputqwvk.space/kezuwevex1qyi.pdfIn PDF document text
    • http://andyhongdigital.com/42365923180bsnvk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/00901ca8-00dc-4fe1-a25c-de96cab8b045/what_is_periodontal_pocket_depth.pdfIn PDF document text
    • http://kewetanetoza.atwebpages.com/punolulolij.pdfIn PDF document text
    • https://34e2f0dc-0077-42bd-a047-efa2502e92af.filesusr.com/ugd/8a05ec_c9bb10ea9227409e804546fc26d239f6.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e3a1c8d-d82a-4296-abd9-3768b136da5b/sefavat.pdfIn PDF document text
    • http://molopafefo.rf.gd/androidx_constraintlayout_version.pdfIn PDF document text
    • http://repajazofuwide.epizy.com/zupefurolepiwewutot.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2fe9f39f-724c-4d69-af1c-b700a7a3a687/tudururoxutevabenef.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/685c2ded-b48c-46b4-8a9b-930af553e05e/46642719005.pdfIn PDF document text
    • https://041f977c-1598-48cb-b578-3d63f550c8ab.filesusr.com/ugd/524ae3_e6c3e728d1a04adf9d6ee1b370ef48f9.pdf?index=trueIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e95c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE95C 5124 bytes
SHA-256: 7c815a3a3b721109f6c9c6d444e00d34e2485c750f0311b64328d6676924deee

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