Malicious PDF — malware analysis report

Static analysis result for SHA-256 14772a9a18b1962b…

MALICIOUS

PDF

85.1 KB Created: 2021-04-01 00:38:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 4eb792f0ca569bdbed21c80b36881df2 SHA-1: 4c3606e76b8cceeb07a76c57bad736f64c0d320a SHA-256: 14772a9a18b1962b9d34f4b2effd4ef479da710f45da6216c091b4f658830dbf
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains an embedded URI pointing to 'botokaw.ru', which is likely a malicious domain used to host phishing content or distribute further malware. The document body, though heavily obfuscated, contains text related to a review, suggesting a lure to trick users into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://botokaw.ru/wix?keyword=kel+tec+pf9+review+2018 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4484363/normal_6015b8915b613.pdfIn PDF document text
    • https://cdn.sqhk.co/sunawopi/9hfgeji/coin_counter_locations_walmart.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422645/normal_601a02338c4b5.pdfIn PDF document text
    • https://cdn.sqhk.co/ruzudulo/eWfWjaI/android_tv_remote_control_keyboard_not_working.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403259/normal_5fdc0e1a5b897.pdfIn PDF document text
    • https://cdn.sqhk.co/pizililiv/idIEjeH/45869397348.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449629/normal_604ad00cc572d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500887/normal_605282bd19db4.pdfIn PDF document text
    • http://myirn.icu/doduwodesonugovodaggpip8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488332/normal_604aa5aa76536.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371524/normal_601640e03371b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387419/normal_6005e08c0f69f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365607/normal_5ffddffb7820f.pdfIn PDF document text
    • https://cdn.sqhk.co/zudoputasafe/vgiijgd/dead_by_daylight_beginner_s_guide_2019.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4394060/normal_5ff04823d955a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393628/normal_5fcfa543b4b95.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456663/normal_5fe284bd64b28.pdfIn PDF document text
    • https://cdn.sqhk.co/livulopo/fK8EWrJ/lovala.pdfIn PDF document text
    • http://letxxnx.org/what_mythology_are_dragons_from4pnfn.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zebepojeguxeb.epizy.com/face_detection_and_facial_expression_recognition_system.pdfIn PDF document text
    • http://nowapuporab.epizy.com/videosecu_ml531be_tv_wall_mount_installation_instructions.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_off00010b8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B8C 5420 bytes
SHA-256: 35dcf9033ba17edb4eadb255effb5072881dc4ba0a139409fd05df641c170ad0
font_01_sfnt_off00011e35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E35 11720 bytes
SHA-256: 622a4f19d54de584db2c51997e3add1a4fe21f59d4dc6306c3f75fbcc0d8ce3d

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