Malicious PDF — malware analysis report

Static analysis result for SHA-256 464030f0ea4b8f45…

MALICIOUS

PDF

81.2 KB Created: 2021-03-13 14:04:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: 3671ec242a86630b5f6c9640987b2d14 SHA-1: b3a34e53e54c7528a9b336552a5d1b6a307dff4e SHA-256: 464030f0ea4b8f45b7059f40c4ed34d32bb8e1e53ea3c2b860ceeacb670f4393
126 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains numerous embedded URLs, with a primary suspicious URL being https://nipisod.ru/award?keyword=logistics+analytics+pdf, suggesting a lure for users interested in logistics analytics. The heuristic PDF_SEO_DISPOSABLE_LINK_FARM further supports the malicious intent by identifying the PDF as a link farm hosted on disposable domains.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://nipisod.ru/award?keyword=logistics+analytics+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4453579/normal_5fd1255e8cbd2.pdfIn PDF document text
    • http://itdiscount.info/bifijojefaj64.pdfIn PDF document text
    • http://stingeksoj.online/camelot_1967_moviekaa8j.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368969/normal_60339c43d7554.pdfIn PDF document text
    • https://cdn.sqhk.co/madufuxenuw/hgha739/fast_racing_2_mod_apk_android_republic.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502336/normal_6045bf7569051.pdfIn PDF document text
    • http://dufifudusimube.mygamesonline.org/que_es_dispositivo_de_salida_y_ejemplos.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375073/normal_5ff14494a7281.pdfIn PDF document text
    • http://segaruzobuguses.scienceontheweb.net/fafepisiratejep.pdfIn PDF document text
    • http://wawesoja.sportsontheweb.net/teachers_day_essay_in_bengali_language.pdfIn PDF document text
    • http://ideal-it.fun/80969425475cnqjf.pdfIn PDF document text
    • https://cdn.sqhk.co/womibakok/0jhhiRK/48261482408.pdfIn PDF document text
    • http://sokixatov.mywebcommunity.org/bin_sachivalay_exam_paper_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/wewisadavoj/oeihjjh/swot_analysis_examples_powerpoint_template.pdfIn PDF document text
    • https://cdn.sqhk.co/jotenitix/hcdibQk/goddess_kiss_dmm_wiki.pdfIn PDF document text
    • https://cdn.sqhk.co/nowonipewo/gjbSYTZ/zamigigipamez.pdfIn PDF document text
    • http://suzupuwejal.mygamesonline.org/bofuwevadodolujujemubasu.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/37181186-b6b6-4c43-b32a-57680a9fc627/95391030143.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1cf85501-a6dd-4896-a43f-cc3eeaf8879c/ea_sports_ufc_2014_pc_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/93279749-c448-499a-98f3-e8f027edf77b/53481129367.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b37ba72e-9e84-46e5-ada2-8103443250c9/dejaro.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ac83330f-1361-41ca-abde-af37599d7968/iphone_5_5se_5s_otterbox_apple_iphone_case_defender_series.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4eb744af-ddd0-48eb-ad20-c18e2343400c/lcm_worksheets.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a73a385b-55f3-4ff4-b376-b864de2377e5/49779542356.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_off0000fd0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD0D 5268 bytes
SHA-256: fc1b555b0a4f9d1d643cf9567683af288f80e673c4e0e2f782a74314be0c7a60
font_01_sfnt_off00010f2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F2A 11472 bytes
SHA-256: a498eb606966e1dbdef2150a22ab451822de1749f77d826bb47de317f76da3d6