Malicious PDF — malware analysis report

Static analysis result for SHA-256 074d2f849f362ea5…

MALICIOUS

PDF

69.4 KB Created: 2021-03-05 05:18:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 204acea9c634a08feafa13e180c6a84e SHA-1: 19b72ef8a16037cb6e70e97b6aed51fc3788495e SHA-256: 074d2f849f362ea5508301a90593f322397c92317337b4d8c924151f29863a76
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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://druttle.ru/award?keyword=how+to+use+fixon+denture+adhesive+powder PDF link annotation
    • https://cdn.sqhk.co/pulizojiwim/jiuMjhk/77739594561.pdfIn PDF document text
    • http://ditilage.22web.org/52926014719.pdfIn PDF document text
    • https://cdn.sqhk.co/baxalelizop/jeicje8/24583003619.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389571/normal_603a869e3dcf3.pdfIn PDF document text
    • http://togilikosilit.22web.org/39994369779.pdfIn macro / runtime command snippet
    • https://static.s123-cdn-static.com/uploads/4451737/normal_60047d42434ac.pdfIn PDF document text
    • http://kitukotobov.medianewsonline.com/red_bull_annual_report.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444123/normal_5ffc90fdb08dd.pdfIn PDF document text
    • http://laluwaraselolar.mywebcommunity.org/harry_potter_book_1_quiz_questions.pdfIn PDF document text
    • https://cdn.sqhk.co/mopomotop/blfhhis/super_bunny_hop_cheat_gta_san_andreas.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368489/normal_5ff17652da92d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412170/normal_600320339d0f0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389571/normalIn macro / runtime command snippet
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dosalapasenow/teaching_music_through_performance_in_band.pdfIn PDF document text
    • https://s3.amazonaws.com/vawoginele/windows_10_enterprise_ltsb_2016_iso.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/34ee87fd-1631-44a0-8e1a-6abeb21e65fb/fekalomubofazesosur.pdfIn PDF document text
    • https://s3.amazonaws.com/sewamos/xozera.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dbc90a5a-b2c8-4d61-876e-87de6f6a5ced/mean_median_mode_range_standard_deviation_calculator.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6e29392b-1caa-4292-aa78-91307a485488/php_rest_client_curl.pdfIn PDF document text
    • http://sidepojedava.myartsonline.com/dokurizovumagikaleb.pdfIn macro / runtime command snippet
    • http://fefukidu.epizy.com/new_year_card_2019_template.pdfIn PDF document text
    • http://resilasijajatil.myartsonline.com/barbara_minto_pyramid_principle.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b6f57073-1ce9-4d48-81bf-515a01da2b23/why_does_urine_smell_like_vinegar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/18e1816b-6299-44f1-b4a3-458c333d9317/85138083597.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_off0000d1f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1F9 5280 bytes
SHA-256: 9e734e65249205ce1a2ade8d6b548c4df972d28f43de4563b777347633868647
font_01_sfnt_off0000e401.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE401 10624 bytes
SHA-256: abc5b94fa27b138ff7865012b2c64c55ee0cfeabf6cf58331bd59166243df26f