Malicious PDF — malware analysis report

Static analysis result for SHA-256 afd22108070c7699…

MALICIOUS

PDF

83.1 KB Created: 2021-03-28 15:25:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: d131f43113218ab2926cebf1fa546d04 SHA-1: 4ab00ffc6e4714c0d2a88a3ed05c808b8b9e5637 SHA-256: afd22108070c76990bc7f72d7250bdf58b7250bd3aa597fdfce9ac55e91dd185
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'mezovuduw.ru' which is presented in a way that suggests a download link for a modified application. While no scripts were explicitly extracted, the PDF structure and embedded URI strongly indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://mezovuduw.ru/wix?keyword=traffic+rider+apk+mod+hack PDF link annotation
    • http://reduslim-shopofficial.site/sojerumuzoxojozyk3zj.pdfIn PDF document text
    • http://kind-insta.site/gatexakubopozimuy6pr.pdfIn PDF document text
    • http://vobafoselalulor.mypressonline.com/ritezulawizumilexapoginu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380411/normal_5fe39f53ce773.pdfIn PDF document text
    • http://wazepewazivulil.mywebcommunity.org/52941549556.pdfIn PDF document text
    • http://defokozixeral.sportsontheweb.net/volvo_bm_650_manual.pdfIn PDF document text
    • http://ubsvp.com/78093942099q57cw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402718/normal_6046769fcd174.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466154/normal_60016c27e457e.pdfIn PDF document text
    • http://astropsychology.website/ribomabepoguximerunupuzrd1x.pdfIn PDF document text
    • http://cancandance.org/what_do_you_capitalize_in_a_subject_lineyxsbm.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/nowonovege/joravugelarovukodumu.pdfIn PDF document text
    • https://s3.amazonaws.com/mejigavukolu/lirifi.pdfIn PDF document text
    • https://s3.amazonaws.com/zukogi/lease_agreement_sample_format.pdfIn PDF document text
    • https://30c74dc1-c3f2-4e71-8253-1ec84f3b94e1.filesusr.com/ugd/b8c6fa_15e0cc03fc8d455bb24ccb35a1c56372.pdf?index=trueIn PDF document text
    • https://88bec3ce-9cdd-4818-a95b-bcf8ac49d1e7.filesusr.com/ugd/72df48_6f4909a216e04997b326bd4667f3dead.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/veraxawewib/8673477863.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/84a5a4b3-ea0b-498b-9fd8-07193122a073/bissell_revolution_pet_pro_not_picking_up_water.pdfIn PDF document text
    • https://c6111751-42b6-464f-a8b1-832d492ff999.filesusr.com/ugd/3d0627_aa080cd9dec14115aa997e376485b35b.pdf?index=trueIn PDF document text
    • http://romakilax.myartsonline.com/zawak.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/46432b85-6962-4bc3-b8a6-c96614dcd633/liftmaster_professional_1_2_hp_installation.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/35200480-4941-4f78-ab7e-f8844e50bb4a/18931302193.pdfIn PDF document text
    • https://s3.amazonaws.com/dazuxujepov/carlyle_group_annual_report_2012.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c078689-0d53-4587-b192-dc28b3820b79/53107812230.pdfIn PDF document text
    • http://fepusum.onlinewebshop.net/2576_adj_datasheet.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_off0000fa7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA7A 5196 bytes
SHA-256: 06f1df2cb374b118842e4500a6e6b828afa01bfde13f8f0c2e961d4d9c1f3a88
font_01_sfnt_off00010c03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C03 23268 bytes
SHA-256: 304990248818f1a73d732cc5495616fcd194e95f96ff78fdd156f8ae3adc7542

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