Malicious PDF — malware analysis report

Static analysis result for SHA-256 7acccf63ba874cbd…

MALICIOUS

PDF

79.4 KB Created: 2021-03-21 02:02:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 2542ad5e2204feab127b602345172886 SHA-1: 7ad0a2ffae1c015c9153719c9999a43d111037b7 SHA-256: 7acccf63ba874cbd61796839f5855ca617557eabb5f86c505efdd101ecd4e38f
176 Risk Score

Malware Insights

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

The PDF file contains a lure related to 'Mooresville high school football' and redirects to the URL 'https://ponafet.ru/wix?keyword=mooresville+high+school+football'. This URL is flagged as a redirector for phishing and SEO purposes, suggesting an attempt to lure users to a malicious site. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic indicates that the document may instruct users to decrypt a password-protected archive, a common tactic to bypass gateway scanning. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://ponafet.ru/wix?keyword=mooresville+high+school+football PDF link annotation
    • http://ampinternational.org/dugegowojesutojuku1j013.pdfIn PDF document text
    • http://fitness-ital.fun/the_roommate_netflix_trailer90q17.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464524/normal_60327712c3b76.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370080/normal_604eb68ee86ef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376601/normal_604423b4971fb.pdfIn PDF document text
    • http://ighelperscenter.com/how_to_write_an_argumentative_essay_samplezbg9c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421365/normal_5fd369392f204.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407316/normal_601a6b5407061.pdfIn PDF document text
    • http://stroymarketmetal.ru/839408965386kket.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390071/normal_602e0e6fa70b4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387590/normal_603f02c222a9b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/5df8d909-d3ab-423b-850e-beefa8b13e4f/35651049320.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d879d82c-bb76-4c53-ba37-3d44eac71399/50975661115.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8dec2084-5e21-4cca-a3b0-5a872bd41450/posiwavezugirobebagux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/02d4e5f9-5d34-4a8e-96c0-c961306684b9/fikoj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3acae18b-6a40-4d8d-96a4-7baf68eaec8a/30202502631.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a7167a7e-5f80-4d9c-b8a6-47d265a8c46e/tabela_fipe_carros_usados_ford_new_fiesta.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fedbc773-7345-4de6-a730-a67145940dd7/mini_weapons_of_mass_destruction.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/851f99f5-387f-4367-b25a-d24a76c50f93/eureka_lightspeed_cordless_vacuum_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cd5b05d1-5f70-4645-bab2-ab7f7c62bc44/is_porsche_cayenne_expensive_to_maintain.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB9F 5028 bytes
SHA-256: 90735803120e4d04d60d86d5948b62dc1abb3f59cc0acb7450ebc59a914c9baa
font_01_sfnt_off0000fce1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCE1 11076 bytes
SHA-256: d03320b0ff688833807360d11d6ed0a276b816b5ca8795735734491fbd16d50e
font_02_sfnt_off00012261.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12261 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3