Malicious PDF — malware analysis report

Static analysis result for SHA-256 2113cad6e6a85577…

MALICIOUS

PDF

87.5 KB Created: 2021-03-24 07:09:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 42bdc73a240f7878ce98119e3f0a59ac SHA-1: 8ba3770c9ec9906224f28b0b73340953758ad604 SHA-256: 2113cad6e6a855776c189f59c48cb592521babe34862a7394b49209e9a7c5f6c
156 Risk Score

Malware Insights

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

This PDF document contains a significant number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. The primary malicious URL, 'https://golowaki.ru/123?utm_term=miracle+thunder+2.+98', is likely used to redirect users to malicious content or phishing pages. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports the malicious nature of this file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://golowaki.ru/123?utm_term=miracle+thunder+2.+98 PDF link annotation
    • http://suwudera.22web.org/aishi_electrolytic_capacitor_datasheet.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461495/normal_5fca5b4b6f8d3.pdfIn PDF document text
    • http://vagebunav.iblogger.org/how_to_service_rainsoft_system.pdfIn PDF document text
    • http://bujufamamaw.22web.org/demolishing_supposed_bible_contradictions.pdfIn PDF document text
    • http://noxerazomefo.iblogger.org/kannada_chalanachitra_galu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369313/normal_5ffb870551ecd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368238/normal_604fcaf9aa3c8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://e1318bff-d970-45e2-bcea-45481503a18b.filesusr.com/ugd/75a96d_30fed35d6f2f4c2c8990c7e6a906a568.pdf?index=trueIn PDF document text
    • http://zitokobu.rf.gd/vewatovebureniduralep.pdfIn PDF document text
    • http://xifabemifuxiza.rf.gd/movie_mission_impossible.pdfIn PDF document text
    • https://s3.amazonaws.com/tevomenil/xilinx_kintex_ultrascale_plus_datasheet.pdfIn PDF document text
    • https://s3.amazonaws.com/rujimidujek/satokorelutabo.pdfIn PDF document text
    • https://c46c713f-5e69-4c64-aad4-d86f29440f76.filesusr.com/ugd/957c7b_ce2cdeb288274570b5a96bf426d258c7.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/dozuga/8005042625.pdfIn PDF document text
    • https://s3.amazonaws.com/dorobukasawituw/jiravevutokujebavel.pdfIn PDF document text
    • http://pawubiba.epizy.com/autotagger_pro_apk.pdfIn PDF document text
    • http://sevezogare.rf.gd/automated_hardware_testing_using_python.pdfIn PDF document text
    • http://vuwizovoxix.rf.gd/92274449402.pdfIn PDF document text
    • https://s3.amazonaws.com/mixanaz/glencoe_health_book_chapter_3_review_answers.pdfIn PDF document text
    • http://guxudapese.epizy.com/alucobond_cladding_installation_guide.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011a93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A93 5368 bytes
SHA-256: 8a36e5152a571521881c618f14d4d16d3e042537c07a1b447632ea7a987c06d7
font_01_sfnt_off00012cd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12CD6 10688 bytes
SHA-256: 90a627ec6098a867807b662fac8b2fe947ca31d1dc427f7631560561a1b226dd

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