Malicious PDF — malware analysis report

Static analysis result for SHA-256 84d5589a2175c6c0…

MALICIOUS

PDF

81.7 KB Created: 2021-03-20 21:14:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 312b3dc0f5dc400aa2d7b77f3d07ff2b SHA-1: f676a657b4f3b578a93ec51a0e9ccc6b0321a888 SHA-256: 84d5589a2175c6c07cdf667f366c752607c5b1fc9e7961b4abe63e7646066ccd
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URL that directs users to a suspicious domain, likely for further exploitation. The document body, though heavily obfuscated, appears to be a lure related to cultural symbolism, consistent with phishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://jottigo.ru/strik?utm_term=what+does+the+tree+of+life+symbolize+in+mexican+culture PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4484355/normal_60109c289e1ce.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387430/normal_6030d054438f8.pdfIn PDF document text
    • http://pinoxisar.iblogger.org/angular_2_template_driven_form_group_validation.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411219/normal_60469338ebe8d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479923/normal_602e674d45a10.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/74d0c734-beee-493c-a453-6cfc89488578/vadonetofodijufememuf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c8c5310-7906-43cb-9a95-33f47ee356bd/48736397963.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/92bf6d07-8f95-4d22-a6a5-7bff1c65785a/wijonitamipimovowowobirob.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a7a9675a-26c7-434b-b370-dc2fbac30f0b/how_to_look_up_driver_license_number.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1a82ae06-ec26-46b2-89b0-5a8f6239e466/savenujikolawadafedopix.pdfIn PDF document text
    • http://sedegagagojuwej.epizy.com/28350936447.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/16089bbf-48a8-4d8e-b716-dd43c238e9e3/roxudavop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6fc9a255-adcf-46f1-a2aa-997921dc12fc/we_were_liars_movie_2021.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b027e5d-1984-4a6a-90f9-10cb60c705cc/26342555281.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c7257b82-216b-4c2e-8034-3d348b46d2dd/3451722034.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/893f5228-d943-4bd5-a3df-d5eb941a4c2d/9749284984.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0110544f-4e56-46d1-9c75-0a20138fa0c9/what_are_the_12_biomes.pdfIn PDF document text
    • https://s3.amazonaws.com/pirosisob/53950320557.pdfIn PDF document text
    • http://wuzuvulas.epizy.com/vemoxelerojabapexuw.pdfIn PDF document text
    • https://s3.amazonaws.com/gizonukorad/getug.pdfIn PDF document text
    • http://papujov.epizy.com/60058915956.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/241fd59b-1947-4b38-ab95-8b0fbdbb7dc4/bilofoloximejolufokubojo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/29c26432-7759-4ce0-92a4-46afb75ebea2/how_to_start_writing_suspense_fiction_patricia_highsmith.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_off0000f34a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF34A 5516 bytes
SHA-256: 3768dab5ac76461c4a21d00a9bd084e88b269394859a299c35ea4831f190d508
font_01_sfnt_off00010600.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10600 11040 bytes
SHA-256: 6f47d6eebdb142b7cae5bcfba3f5dafb0850987ca921b5d037d4a918d69847d6
font_02_sfnt_off00012ab6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12AB6 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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