Malicious PDF — malware analysis report

Static analysis result for SHA-256 4043094d2687efa0…

MALICIOUS

PDF

197.7 KB Created: 2021-03-18 22:17:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 4274dd9f0cf6a7f7f3a764cfe2daf574 SHA-1: 583609b16abea8402976e55b2c6acbbc729255c8 SHA-256: 4043094d2687efa03a3a81763e9aca8af63a64d468a388bacb4e8ae8e78a1387
104 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9902

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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://ponafet.ru/wix?keyword=sunshine+s-off+cracked+apk PDF link annotation
    • http://pufegusikozig.22web.org/88051059007.pdfIn PDF document text
    • https://fumewalifo.weebly.com/uploads/1/3/4/8/134884483/92874c.pdfIn PDF document text
    • https://zexorekimapuwip.weebly.com/uploads/1/3/4/7/134702453/lokut.pdfIn PDF document text
    • https://joripulugafu.weebly.com/uploads/1/3/4/3/134318872/zogitu-vunujorudike-mejorewiduwu.pdfIn PDF document text
    • https://jajaleregonu.weebly.com/uploads/1/3/4/2/134235513/jikobizekunajap-pusalux-jupakogujas-ramunupetanigu.pdfIn PDF document text
    • https://mizunemaki.weebly.com/uploads/1/3/4/8/134850414/kegeratanizagikuzad.pdfIn PDF document text
    • https://genexopeg.weebly.com/uploads/1/3/4/6/134661587/f367e.pdfIn PDF document text
    • https://nogonosexenepe.weebly.com/uploads/1/3/4/6/134674491/7101946.pdfIn PDF document text
    • http://zoxowopivuk.iblogger.org/ancient_magus_bride_ruth_english_voice_actor.pdfIn PDF document text
    • http://wokelegekak.66ghz.com/triangle_congruence_test_review_answers.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://8c8a1d26-85df-410e-9d08-38b72659c452.filesusr.com/ugd/63f22d_f48940c789c74569a0e8e9a72ff27109.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/39742280-68d0-4aed-8622-2de3e5fd6939/zofadawa.pdfIn PDF document text
    • https://2d841ef3-a248-4e6a-996b-2d54d6713fdd.filesusr.com/ugd/1decf9_efdd654bb3af459ea1ca034b293ca6c4.pdf?index=trueIn PDF document text
    • http://popewap.epizy.com/88092294960.pdfIn PDF document text
    • https://fccd5518-64e1-462d-9dbe-8d8d8a19ca7a.filesusr.com/ugd/eb005d_edaa4e39d1e544ebbff45d224c4027ee.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/8bd0466a-e55e-4f41-9cf1-3fcca101ba61/hidden_secrets_of_the_bible_history_channel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/84687a8c-6eee-44f1-a747-47a3679cb228/sallys_baking_addiction_pizza_crust.pdfIn PDF document text
    • http://vukekabexipog.rf.gd/tommy_igoe_groove_essentials_mp3.pdfIn PDF document text
    • http://mafakizukizunof.epizy.com/anaconda_movie_1997.pdfIn PDF document text
    • https://26c1613e-5d28-4fa3-89cb-3d2c9ab59faf.filesusr.com/ugd/fe83c3_40c6f5de76c1449697e1c0c2050731a8.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002a7fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A7FA 5212 bytes
SHA-256: 23aea0c9c5689abe0676208e6bfa6186aaca1581bae2d98f08f41313a6999841
font_01_sfnt_off0002b99c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B99C 12720 bytes
SHA-256: 25451b1dd4de7dd9418739fa69b163b03e609aca8ae230a18dd103bf03c760c7
font_02_sfnt_off0002e498.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E498 16296 bytes
SHA-256: 15128285344048d76b584a6587ab2ccb2c75eee889948d4c665368cae9e92c8f
font_03_sfnt_off0002fa15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FA15 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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