Malicious PDF — malware analysis report

Static analysis result for SHA-256 974c5011722dac57…

MALICIOUS

PDF

74.4 KB Created: 2021-05-03 06:22:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: df2a600ebec6b84ffa9b3dad960bb843 SHA-1: 6ef04c8fd07b388d219ef03327c89d9b1a7ec1e2 SHA-256: 974c5011722dac5726b79848b267ad89932274b59b4cda0ee69425a5817d5fd9
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL leading to a phishing site. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. The document body, though heavily obfuscated, suggests a lure related to hardware troubleshooting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://ponafet.ru/strik?utm_term=what+is+troubleshooting+hardware PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4483586/normal_60383ba693e13.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369762/normal_603819971e5da.pdfIn PDF document text
    • https://cdn.sqhk.co/tumufiwusifo/j2ib0oE/the_lost_vikings_2_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447265/normal_604fdbf82d6c3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367294/normal_606a63bb906fa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500425/normal_5ff814ed91c64.pdfIn PDF document text
    • http://xufelaketodo.getenjoyment.net/94931129718.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497081/normal_605162179cac4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451565/normal_605c168017f48.pdfIn PDF document text
    • https://cdn.sqhk.co/xafiguzi/XqjjiaZ/scream_sound_ringtone_download_song.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407062/normal_5fd630e40258e.pdfIn PDF document text
    • https://cdn.sqhk.co/zufosupiz/j4bhggh/music_equalizer_lite_ultra_sound_bass_boosters.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418180/normal_5ff5806c25b4a.pdfIn PDF document text
    • https://cdn.sqhk.co/mapelimujeku/hjLijfg/big_emoji_stickers_wastickerapps.pdfIn PDF document text
    • http://lugirepapirizo.scienceontheweb.net/20227364531.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/dazawojob/wenovakojagalilasipak.pdfIn PDF document text
    • https://s3.amazonaws.com/dazuxujepov/reporter_live_streaming.pdfIn PDF document text
    • https://s3.amazonaws.com/seriposuj/how_to_change_hepa_filter_hoover_windtunnel.pdfIn PDF document text
    • https://s3.amazonaws.com/falufusu/nibugowozipawubemilaka.pdfIn PDF document text
    • https://s3.amazonaws.com/napoledunadigo/eating_habits_questionnaire_template.pdfIn PDF document text
    • https://s3.amazonaws.com/woxojuxafopuv/rutebugemodulefitabamijut.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_off0000e702.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE702 5332 bytes
SHA-256: 11db7f177c7cf40dc10a64bb8018e81662c9807d70ae48117048fbcc3f7cf2d6
font_01_sfnt_off0000f92d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF92D 10292 bytes
SHA-256: f0976730ce13d140ee4ef61f12a4572bbd22def7df3e73202f06a9d99dc19259

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