Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd02f0f631fb5431…

MALICIOUS

PDF

78.6 KB Created: 2021-02-05 18:56:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: 5fb09e5989c6e9230c28e6a2432e00a1 SHA-1: 70da1c7677a263ae8b0180a925f91e801a8ca6aa SHA-256: fd02f0f631fb54318fef594489c1b4967c412306d52db5028e32e7c75f4c2795
96 Risk Score

Malware Insights

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

The file is a PDF document that contains embedded URLs, one of which is flagged as malicious. The ML classifier and ClamAV detection strongly indicate malicious intent. The document likely serves as a lure to a phishing or malware distribution site, disguised as a product advertisement.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://leonvi.ru/123?utm_term=bunn+ultra+2+slush+machine PDF link annotation
    • https://xaporavuxeboj.weebly.com/uploads/1/3/2/6/132695407/moloponajopite.pdfIn PDF document text
    • https://wusoditada.weebly.com/uploads/1/3/1/4/131406121/kixizu.pdfIn PDF document text
    • https://sijanobodebalu.weebly.com/uploads/1/3/4/6/134639398/ff09429e.pdfIn PDF document text
    • https://cdn.sqhk.co/lerapuraroke/ibt4wja/oregon_ducks_spring_game_2020.pdfIn PDF document text
    • https://dowosebiz.weebly.com/uploads/1/3/1/8/131871919/saxabumasa.pdfIn PDF document text
    • https://cdn.sqhk.co/dubutemaruxu/Qgjgdkt/train_your_brain_book_in_telugu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487186/normal_601d4e0055d0e.pdfIn PDF document text
    • http://velavedi.iblogger.org/94277053127.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386613/normal_600cca035d7ae.pdfIn PDF document text
    • https://notesorujul.weebly.com/uploads/1/3/1/4/131407176/184956a29df2.pdfIn PDF document text
    • http://wokelegekak.66ghz.com/beethoven_virus_pump_it_up.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/biwubeleba/21814525856.pdfIn PDF document text
    • https://s3.amazonaws.com/wixamupelinere/meridofedineziko.pdfIn PDF document text
    • https://s3.amazonaws.com/dufekifaral/baxter_elastomeric_pumps_patient_guide.pdfIn PDF document text
    • http://tuxexagixib.rf.gd/40190764191.pdfIn PDF document text
    • https://s3.amazonaws.com/tajimipojimo/microsoft_branding_guidelines.pdfIn PDF document text
    • http://guxozuzemonixe.epizy.com/33278689272.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
    • 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_off0000e129.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE129 5220 bytes
SHA-256: b2adc3d944485f58722aa3d5d51f68ddd728f7b4a660ca7eea01a254b0f47f76
font_01_sfnt_off0000f2be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2BE 10904 bytes
SHA-256: 6f6f0564b6ee1cbe0bcaa8a86b550256f56c115c922f5b575e193321f8a0f9d9
font_02_sfnt_off00011805.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11805 16208 bytes
SHA-256: fe139538347d724e6b27dab22ead91fbb1eb3470a850438049392072e7f85921