Malicious PDF — malware analysis report

Static analysis result for SHA-256 04ccecb81cc9e2c4…

MALICIOUS

PDF

95.9 KB Created: 2021-04-25 19:37:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: 6ebd9cf5352b8214acef3d2c838771de SHA-1: 9061275efda93f6ad0a39adad12aaff7920a2e5b SHA-256: 04ccecb81cc9e2c43a3a6dec09d807fcca218a9d9159e122db5ad58ff2a73319
126 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains numerous embedded URLs, with a primary suspicious URL being https://lozipotod.ru/strik?utm_term=blood+bowl+2020+best+teams, likely intended to redirect the user to a malicious site. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'Blood Bowl 2020 best teams'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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
  • 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://lozipotod.ru/strik?utm_term=blood+bowl+2020+best+teams PDF link annotation
    • http://astropsychology.site/the_road_less_traveled_book_coverxw0dj.pdfIn PDF document text
    • http://indital.space/hydrofoil_agitator_design1qfn9.pdfIn PDF document text
    • http://losamaresufalu.22web.org/alphabet_learning_worksheets_for_kindergarten.pdfIn PDF document text
    • http://reduslim-shop.website/gym_biceps_workout_chartv0k3p.pdfIn PDF document text
    • http://domavera.ru/navy_regulations_chapter_12whudz.pdfIn PDF document text
    • http://excschool.ru/dumigotobejeniouifx.pdfIn PDF document text
    • http://vewedomodisex.22web.org/music_sheet_notes_names.pdfIn PDF document text
    • http://prod-fruit.space/majetezaxipafelavov6j8d.pdfIn PDF document text
    • http://axecheat5.xyz/94977857948se2jb.pdfIn PDF document text
    • http://finovadi.iblogger.org/xexobus.pdfIn PDF document text
    • http://safetymirrors.xyz/30489674657qltzw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lulevewutowa.epizy.com/sodixixizutologeloxotiduw.pdfIn PDF document text
    • https://b6d28218-96ba-4f98-b9c1-0d78b4e6fe84.filesusr.com/ugd/47aa88_574092c1eeb6486ba7c62473b576581d.pdf?index=trueIn PDF document text
    • http://mitegoma.rf.gd/wopavasaz.pdfIn PDF document text
    • https://90138cf2-752b-46b9-a396-1872e0473e42.filesusr.com/ugd/02203e_fadc97b817f84b2eba1416d934e68810.pdf?index=trueIn PDF document text
    • https://43a2ba88-5de9-465b-b95f-6a4d82f2d06e.filesusr.com/ugd/dcbeda_7104e1ef73c04e0bac31137772b11be1.pdf?index=trueIn PDF document text
    • http://tepudalizebug.epizy.com/55678132808.pdfIn PDF document text
    • http://patuwovoparivi.rf.gd/22769925690.pdfIn PDF document text
    • https://7ed754b6-a209-4558-9281-0032c7ee8ade.filesusr.com/ugd/4329d7_12dabb6f51224950974ebd1a8545e14a.pdf?index=trueIn PDF document text
    • http://wekumut.epizy.com/14010943395.pdfIn PDF document text
    • https://dab7fb03-f2af-4a8e-9cb9-31de623bedb3.filesusr.com/ugd/58b596_e0e01c6aed4f45eab70e3bfa314a3b4d.pdf?index=trueIn 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_off00013ba4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13BA4 5428 bytes
SHA-256: a09b06efd39ee2d4657dddcfa7ab2566205cc1368bdfb7ec4deb40cd81c54479
font_01_sfnt_off00014e18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14E18 10772 bytes
SHA-256: 586fa96bf8f2f1c46575072c6300da92738a9a26399a0a29c9af5e7127ab0455

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