Malicious PDF — malware analysis report

Static analysis result for SHA-256 0de44b08d7ff57c5…

MALICIOUS

PDF

78.2 KB Created: 2021-03-16 05:09:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 9022bc45ec7d5d9c5a37534adbbd8add SHA-1: a86dfcc8bdfc8abf7ff388dafb3cb85ea2889e62 SHA-256: 0de44b08d7ff57c5177f37cc3b58c840218fbf053a5c2e8dc08a43e0c9ef3d53
156 Risk Score

Malware Insights

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

The PDF contains numerous external links, with one pointing to 'fokemale.ru', indicating a potential phishing or malware distribution attempt. The ClamAV detection and ML classifier strongly suggest malicious intent. Although no scripts were extracted, the PDF structure and embedded links are indicative of a lure to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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 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://fokemale.ru/strik?utm_term=can+you+tint+a+golf+cart+windshield PDF link annotation
    • http://daating19.site/icecream_converter_for_pcmcrpr.pdfIn PDF document text
    • https://vetitigozep.weebly.com/uploads/1/3/1/4/131437709/zosakovupuge-mojof-mavuve.pdfIn PDF document text
    • http://ibkreactiva2020.com/ignou_b.ed_entrance_exam_syllabusamw8b.pdfIn PDF document text
    • https://kuvomudoriri.weebly.com/uploads/1/3/1/4/131406544/3026559.pdfIn PDF document text
    • https://cdn.sqhk.co/pekotegafod/7tia0ig/99802572435.pdfIn PDF document text
    • https://cdn.sqhk.co/sotogademo/ekjcHSw/tuning_fork_test_interpretation.pdfIn PDF document text
    • https://bazofaxeretaw.weebly.com/uploads/1/3/4/8/134868688/5311942.pdfIn PDF document text
    • https://lozuninusagutog.weebly.com/uploads/1/3/5/3/135309735/0c697ca3d8aff5.pdfIn PDF document text
    • http://ulekschool.online/likoniwepawasafiraxonok8fnf3.pdfIn PDF document text
    • http://good-production11.site/mefikikogozofem19kv.pdfIn PDF document text
    • https://cdn.sqhk.co/sevigexew/yNvjbwz/zagizuwolab.pdfIn PDF document text
    • http://reestr.site/49561729386zv2gg.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/dapekufoxiraku/gadogoxejawuwisuwinoloxe.pdfIn PDF document text
    • https://s3.amazonaws.com/vovuzize/do_graphic_designers_make_album_covers.pdfIn PDF document text
    • https://2f60c0de-bae8-48d8-8f3f-ce7907f87c52.filesusr.com/ugd/badafb_ee46a89fbf5843cf8e292fbba2912dee.pdf?index=trueIn PDF document text
    • https://b5d51143-f34a-4a4f-9265-6917490cb775.filesusr.com/ugd/9f69bd_266e727ab1bf4e44919eb3dd8907ad29.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/fojaxexino/20777819653.pdfIn PDF document text
    • https://16fd3b15-5541-4454-9538-28daacbf497e.filesusr.com/ugd/e32576_4c8b832800814af99c5613fec392f612.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/fajeloninesitel/xagibe.pdfIn PDF document text
    • https://s3.amazonaws.com/kuboki/nolekexiji.pdfIn PDF document text
    • https://cb0920a4-0dfc-4587-8161-bd3bf883b043.filesusr.com/ugd/df391a_a86aaaf7afee4aa7b3bb19f8cf698cdd.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/puretulenuza/nesa_proficient_accreditation_report.pdfIn PDF document text
    • https://s3.amazonaws.com/robumuduluwise/22578620192.pdfIn PDF document text
    • https://s3.amazonaws.com/fizaxo/brother_mfc_7360n_replace_drum_reset.pdfIn PDF document text
    • https://4eff3ec4-d147-45d1-be73-876d9e1d0019.filesusr.com/ugd/efb3f0_adf9040919614baa82dcee13e51be7a9.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_off0000f23f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF23F 5384 bytes
SHA-256: 78b2d5ee1e0e7adffdef6f49996a17e030ce9e16fb5558d2a3528e093beb4e99
font_01_sfnt_off000104a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104A1 10720 bytes
SHA-256: 611f60fbe3d6897ede746b409eeef88d36fb4901f1558c48499c7a8090a5867d

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