Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e42d2ebe0ecfb0c…

MALICIOUS

PDF

66.3 KB Created: 2021-04-10 12:55:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 5eb1408c9f425893b57812b8d7d5fd46 SHA-1: 52f5e3b74e30db9262ac1241748a4aa23eb55fb2 SHA-256: 5e42d2ebe0ecfb0cedc3958127d31af7b832b026b51e91971252ac324b4cce27
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. The document body, though heavily obfuscated, contains text related to 'Facebook customer service phone number united states', suggesting a social engineering lure. It also contains numerous embedded URLs, with `https://maypoin.ru/strik?utm_term=facebook+customer+service+phone+number+united+states` being a prominent example, likely leading to a phishing page or malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9636

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://maypoin.ru/strik?utm_term=facebook+customer+service+phone+number+united+states PDF link annotation
    • https://cdn.sqhk.co/lolajelor/pHgjsIP/launcher_android_10_q.pdfIn PDF document text
    • http://detozube.scienceontheweb.net/social_media_marketing_free.pdfIn PDF document text
    • https://cdn.sqhk.co/rutisifelom/6nhdWOo/2480117860.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402488/normal_601a61bbc3449.pdfIn PDF document text
    • http://dadivasim.sportsontheweb.net/how_to_write_a_short_story_response.pdfIn PDF document text
    • http://deliwubavamir.mypressonline.com/27231782907.pdfIn PDF document text
    • https://sarowamirubene.weebly.com/uploads/1/3/4/7/134736793/6fb6d57a1.pdfIn PDF document text
    • http://dewodalaluw.mygamesonline.org/lugopezor.pdfIn PDF document text
    • http://benaletuzulug.sportsontheweb.net/18856885969.pdfIn PDF document text
    • https://cdn.sqhk.co/sakiforivona/ExiewNf/dosifi.pdfIn PDF document text
    • https://zuwumepegowivos.weebly.com/uploads/1/3/1/0/131069935/2387626.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370785/normal_6045fcef0c00b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kugukokoner.myartsonline.com/49504529417.pdfIn PDF document text
    • http://wusozupit.myartsonline.com/antioxidant_activity_of_essential_oils.pdfIn PDF document text
    • http://jogakedom.epizy.com/79801544052.pdfIn PDF document text
    • http://liroporuki.myartsonline.com/how_can_you_tell_if_you_have_high_functioning_autism.pdfIn PDF document text
    • http://nipobotigopimon.rf.gd/muvil.pdfIn PDF document text
    • http://siboxep.epizy.com/kavegafukatipema.pdfIn PDF document text
    • http://lavuradisaxel.epizy.com/fbla_spreadsheet_applications_study_guide.pdfIn PDF document text
    • http://limufij.myartsonline.com/el_guion_para_cine_documental_carlos_mendoza.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d74d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD74D 5500 bytes
SHA-256: da875b47db3dfdfa4ebff28075f2603398edb4168f7c8b8e8ea9f9c864714cc5
font_01_sfnt_off0000e9db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9DB 10544 bytes
SHA-256: 7dfba71e5324df0f15f353aa3c0e292c5d1a7426dc3070ebc32705c4c5c2b147

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