Malicious PDF — malware analysis report

Static analysis result for SHA-256 48152120059cfcc8…

MALICIOUS

PDF

96.3 KB Created: 2021-03-03 19:46:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: 2b7c0aa90eb952137d2d70d3a418cfc2 SHA-1: 98e4c4b6b2858c66e7edbe93ea81d0609d10d6c8 SHA-256: 48152120059cfcc8f4a5972edc7de6dcac78c3a7a05bc34d4717852aed81168d
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely part of a lure to download further malicious content or redirect to a phishing site. The document body, though heavily obfuscated, suggests a pretext of offering a free PDF, aligning with common phishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://leonvi.ru/wix?keyword=anodea+judith+wheels+of+life+free+pdf PDF link annotation
    • https://cdn.sqhk.co/lebogomatoze/m3jhUDQ/88841745863.pdfIn PDF document text
    • https://cdn.sqhk.co/medujebukoma/Wgi0jhC/gikoxojugevo.pdfIn PDF document text
    • https://cdn.sqhk.co/mitebosareki/rxjhjjM/10851113861.pdfIn PDF document text
    • http://gilumesu.mypressonline.com/how_to_clean_bosch_ascenta_dishwasher.pdfIn PDF document text
    • http://lulopoboxefon.scienceontheweb.net/91021894426.pdfIn PDF document text
    • http://xemokajoled.medianewsonline.com/lurivape.pdfIn PDF document text
    • http://bixaxivajujojar.mypressonline.com/kujufusome.pdfIn PDF document text
    • https://cdn.sqhk.co/jalosemuv/hgbgjfe/juwujagaroduserosibi.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/zidenigad/bayfield_high_school_uniform.pdfIn PDF document text
    • https://s3.amazonaws.com/gudukupir/brideshead_revisited_tv_series.pdfIn PDF document text
    • https://s3.amazonaws.com/nijosinizo/49086894754.pdfIn PDF document text
    • https://s3.amazonaws.com/penefelomiju/aha_ebook_bls_provider_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/bisazabe/executive_summary_template_microsoft_word.pdfIn PDF document text
    • https://s3.amazonaws.com/jivagajamav/angular_6_radio_button_formcontrolname.pdfIn PDF document text
    • https://s3.amazonaws.com/vexeliku/43617208212.pdfIn PDF document text
    • https://s3.amazonaws.com/viregujipowuru/bibolifozaw.pdfIn PDF document text
    • http://vimixof.onlinewebshop.net/what_is_a_gy6_ruckus.pdfIn PDF document text
    • https://s3.amazonaws.com/defujo/code_vein_gift_giving_guide.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_off00013def.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13DEF 5288 bytes
SHA-256: 5156d42d99970c3d7555aec698f50cb6a43b8647bfd0104e1775e1190ccdce26
font_01_sfnt_off00014ffc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14FFC 10492 bytes
SHA-256: 4853f87e27cb99897d9fc155e94d59f6d709f587895f3bbdf903d917e43558a6

Open this report in the interactive analyzer, or submit your own file for analysis.