Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a58476b958c4c2f…

MALICIOUS

PDF

92.9 KB Created: 2021-03-12 03:43:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: 05e0795d26dbe8228db1650482d16462 SHA-1: 3fb3822b600b3bb66737e4df8910567bde6dfd10 SHA-256: 3a58476b958c4c2fd2de9e693de8e0be499599e122af334517f6a421de9d35ce
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URL pointing to a suspicious domain, which is likely used for phishing or to deliver a malicious payload. The document body, though heavily obfuscated, contains keywords related to 'Walmart pharmacy prescription refill', suggesting a lure for a fake service or phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9967

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://lozipotod.ru/wb?keyword=walmart%20pharmacy%20prescription%20refill%20canada PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4371010/normal_6008b15896d72.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414689/normal_5fccb385e6431.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390383/normal_5fe50ff56e3bc.pdfIn PDF document text
    • http://vepekideku.iblogger.org/free_employee_incident_report_template.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405946/normal_5fe92dbdd38d7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477910/normal_5fe7c7594c978.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486984/normal_5fcc1e12c455e.pdfIn PDF document text
    • http://zazonowipudu.66ghz.com/cleveland_browns_injury_report_today.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455208/normal_6015e4884dde5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476946/normal_5fc75bb1739a2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419832/normal_5fd082ae327db.pdfIn PDF document text
    • http://tezatigobupuvu.22web.org/3d_blueprints_for_minecraft_pro_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419822/normal_60309a055cfc8.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/salosibejodod/6833909218.pdfIn PDF document text
    • https://d451e762-8e00-4155-9971-9512d28d2528.filesusr.com/ugd/b52961_aa28eae1962d4edeac55f6d492318279.pdf?index=trueIn PDF document text
    • http://vusomon.epizy.com/how_to_play_spades_card_game_2_players.pdfIn PDF document text
    • https://s3.amazonaws.com/dipafuxe/learn_korean_books.pdfIn PDF document text
    • https://2b81f3f0-3f46-42ff-87a7-5865dd96cd3c.filesusr.com/ugd/fb41f9_29f2deb7355446258c7f0495d04509c6.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/nuselufuzo/vomoxeli.pdfIn PDF document text
    • http://wabipoxagapez.rf.gd/tensile_test_lab_report_conclusion.pdfIn PDF document text
    • http://gevewodex.epizy.com/basic_thai_phrases.pdfIn PDF document text
    • http://zakuvusebaj.epizy.com/varuxuxilukimuwo.pdfIn PDF document text
    • http://xonukekavufimil.epizy.com/how_to_learn_spanish_for_beginners.pdfIn PDF document text
    • https://0d555108-1732-4721-8d72-76d747b2053a.filesusr.com/ugd/1b0481_0845394e97ce4723ae3897164709714b.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jufowokedunod/462208882.pdfIn PDF document text
    • https://e5447efa-8854-4d04-834e-f0bbd7438c8b.filesusr.com/ugd/ac612b_d690c782d13a4b5f906105c5b0169da4.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_off00012dee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12DEE 5508 bytes
SHA-256: bb7f1142f9bb13585b3355b3f254db6cdb86586db7d4532de5f8410ee1c45312
font_01_sfnt_off00014093.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14093 10932 bytes
SHA-256: 75c58438874a6e07cb48a93f73f802451c019dc6cbb1c3671f18eded6d04b8b3

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