Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc0162b82d1be955…

MALICIOUS

PDF

76.6 KB Created: 2021-03-21 11:30:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: d27aa837dd9dc8765694380d966100e2 SHA-1: c56f5d07d5311988513fda8eedaaef8dedb23f73 SHA-256: cc0162b82d1be955b5f7676a89a2c69b5f9e29f58e796428f2b482a0e1a75d63
96 Risk Score

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 embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://leonvi.ru/123?utm_term=4g+net+speed+app PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4449768/normal_5fdfa34847fdc.pdfIn PDF document text
    • https://cdn.sqhk.co/kujusiru/dhdjh46/kiwik.pdfIn PDF document text
    • https://cdn.sqhk.co/gewewoturila/Ygcugey/aimpoint_micro_t-_2_red_dot.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418192/normal_60535c8f87f28.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448124/normal_603e790f8daeb.pdfIn PDF document text
    • https://cdn.sqhk.co/lufelumad/czObOji/archer_master_castle_defense.pdfIn PDF document text
    • https://cdn.sqhk.co/fusifanux/j5jhGjd/22857553356.pdfIn PDF document text
    • https://cdn.sqhk.co/vekuperik/gjThbgh/billion_builders_money_drone.pdfIn PDF document text
    • https://cdn.sqhk.co/xexanodu/ccjiKih/caregivers_for_compromise.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/befe78b7-dbcf-4b83-8e66-8e1300d464f6/html_css_javascript_jobs.pdfIn PDF document text
    • https://s3.amazonaws.com/kelageketisefuv/sociology_summary_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/dalava/amazon_prime_movies_to_phone.pdfIn PDF document text
    • https://s3.amazonaws.com/vazisi/bash_script_example_mac.pdfIn PDF document text
    • https://s3.amazonaws.com/viromibukoleliw/how_to_take_steps_back_in_a_relationship.pdfIn PDF document text
    • https://s3.amazonaws.com/vipuxafol/guwikovixa.pdfIn PDF document text
    • https://s3.amazonaws.com/wesezuzuvalirik/fuxowepapivajemawadef.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0e1aa618-640c-41e5-8c7e-c91273029626/barthes_camera_lucida.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a93e4b64-a7b0-41e7-b36d-1bdf5fe7435c/85502508655.pdfIn PDF document text
    • https://s3.amazonaws.com/ditiruz/jogixizexapara.pdfIn PDF document text
    • https://s3.amazonaws.com/lanorolowu/cafissimo_pure_manual.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_off0000eed6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEED6 4992 bytes
SHA-256: e46f3d01d52847f46c00d033b242d84d7463bf1c6af3ce90ec54c7b1b0a86eb3
font_01_sfnt_off0000ffed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFED 11088 bytes
SHA-256: 4b3a985d4243c1a2a31c52504724b21d845181e52717ccebed662abe3d5ebf42