Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e1550398f16443d…

MALICIOUS

PDF

68.7 KB Created: 2021-02-13 18:55:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: c6ebe57e034f454c82cff5273eb797de SHA-1: 015d18377e7942b662af2282741ca06f944e7b46 SHA-256: 3e1550398f16443dc94a1657fc09016c849dc75385eafa944fbcc52aa6bb4b6f
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://maypoin.ru/wix?keyword=husqvarna+440+service+manual+pdf PDF link annotation
    • https://cdn.sqhk.co/jugomuzuteb/GibWhbv/zuxuwura.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475863/normal_5ff60b3bde69c.pdfIn PDF document text
    • https://ligofaxudatejot.weebly.com/uploads/1/3/0/7/130739538/4fe19593ad4ece.pdfIn PDF document text
    • https://bimevaxufozuz.weebly.com/uploads/1/3/2/6/132683359/bobeluzeroj-joxobetad-rubifix-munomabune.pdfIn PDF document text
    • https://cdn.sqhk.co/jirudumom/shbpeig/gamexamaxepabixuvajakob.pdfIn PDF document text
    • https://cdn.sqhk.co/luvutagawata/KQjbuFv/change_background_color_of_image_in_photoshop_7.pdfIn PDF document text
    • https://cdn.sqhk.co/tenerinirik/hhFYhba/super_r_type_2_rom.pdfIn PDF document text
    • http://digitalmicroteter.xyz/ways_to_watch_shows_with_friends_onlineiw2by.pdfIn PDF document text
    • https://mokizafot.weebly.com/uploads/1/3/5/3/135347773/semopanaxu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381541/normal_60086cfce3d35.pdfIn PDF document text
    • http://ryduslim.website/the_pirate_plague_of_the_dead_treasure_guided91h6.pdfIn PDF document text
    • http://hookup154.fun/148712391896qaae.pdfIn PDF document text
    • https://paruralevefux.weebly.com/uploads/1/3/0/7/130775474/pomudo_taribategigamav_mefumesa_kirigobu.pdfIn PDF document text
    • http://boevoenlp.com/purga_e_armadilha_vs_headspacep0ucy.pdfIn PDF document text
    • http://thesimplycompleteseries.com/wewuravuxozefpswwi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xifenarubomes.rf.gd/consolidated_balance_sheet_example_uk.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_off0000cfdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFDF 5676 bytes
SHA-256: 3e1c1ddd7474be09cb158ae67ad5e7619d2c33bd39bda3f13c15348e93f5c716
font_01_sfnt_off0000e31d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE31D 10116 bytes
SHA-256: 30177cde734a613a99bdaeb6dec0ec6f21e6f63ee9ec027961255c924f86cc4e

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