Malicious PDF — malware analysis report

Static analysis result for SHA-256 edf54d9aabfb4adc…

MALICIOUS

PDF

94.0 KB Created: 2021-03-06 06:38:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-13
MD5: 72276f1bb8eae47cd625c98bd45c34d8 SHA-1: 81a6cd50b51bfd04d4ebc6386fbe2b36c3868438 SHA-256: edf54d9aabfb4adcbdd4be1da7f0a91a4c02ea5f1e3af3def3d55c363e02016d
96 Risk Score

Malware Insights

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

This PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL pointing to 'fokemale.ru', which is likely used to deliver a malicious payload or redirect the user to a phishing site. The document body, though heavily obfuscated, suggests a lure related to 'Ova and ovf full form'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

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://fokemale.ru/wix?keyword=ova+and+ovf+full+form PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4447497/normal_6033a3ee0a1d9.pdfIn PDF document text
    • https://cdn.sqhk.co/vaxarogajib/gqedQio/rankedin_spt_trelleborg.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487424/normal_603375fe71968.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407780/normal_6026189b86b4e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445573/normal_5fee5555f182c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413362/normal_5ffe8d60dc182.pdfIn PDF document text
    • http://tofuvuniz.iblogger.org/glee_defying_gravity_sheet_music.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455883/normal_600bbf29eab12.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502870/normal_6035dd62ef4b7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484818/normal_5ff54ebfcd680.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4504047/normal_601dc9d944e84.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368481/normal_5fcd812898b8e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496381/normal_600af71d1c130.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418788/normal_5fd8064cdca45.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469847/normal_5fde0fb1cc870.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387920/normal_5fe5719b9de06.pdfIn PDF document text
    • https://cdn.sqhk.co/rubuxupab/hijgjhh/banana_kong_blast_mod_apk_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469852/normal_5fe72653a9552.pdfIn PDF document text
    • https://cdn.sqhk.co/xesozugis/glgeyDq/slither._io_zoom_mod_safari.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418984/normal_6023059f2dfdc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420224/normal_5fff6accb0028.pdfIn PDF document text
    • http://gasorutika.iblogger.org/doretunajiledope.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422909/normal_601d755db7029.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nunoxemimo.rf.gd/60389717523.pdfIn PDF document text
    • http://daxilutoxin.rf.gd/gujesikixizobatokeduju.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f5e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5E4 16284 bytes
SHA-256: bebe6f973798a8f92487fdc3ac34e1328951fbc3628e60a1c3347bb6119a0807
font_01_sfnt_off00012b0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B0D 4960 bytes
SHA-256: 7bb639abc9c4c751115748a809aacfa3040c52e1656da2336e08b4f7252ee1eb
font_02_sfnt_off00013be1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13BE1 14508 bytes
SHA-256: f7f5d0470304146afc7d8ddaa34f9f662b72020f360fb846b47549d5338bdb73

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