Malicious PDF — malware analysis report

Static analysis result for SHA-256 16577049f1435da0…

MALICIOUS

PDF

72.0 KB Created: 2021-02-11 23:01:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: a5d18c00696bc522099e3d38e5434878 SHA-1: d7b4cc661270c15cac36fbc68955a05c895843a1 SHA-256: 16577049f1435da0948c5e5bfd4356d5bc94837d956479aa08c12be919822159
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://jottigo.ru/wix?keyword=rca+led46c45rq+manual PDF link annotation
    • https://cdn.sqhk.co/nubenirosife/f9mogjX/kujujujakiwak.pdfIn PDF document text
    • http://wirelessinfo.ru/jajukesefonos0hyc.pdfIn PDF document text
    • http://shop50off.info/hard_boiled_egg_diet_plank8o7y.pdfIn PDF document text
    • https://cdn.sqhk.co/rexixugepir/hiXjfbd/texas_hold_em_poker_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/vobevufubito/6dPMvgi/mlb_shop_free_shipping.pdfIn PDF document text
    • http://keysecret.ru/business_letter_format_example_templateoexav.pdfIn PDF document text
    • https://cdn.sqhk.co/sebidurubuze/4ggtB1I/80258308398.pdfIn PDF document text
    • https://cdn.sqhk.co/foroboreb/Sgejhgh/mejojenabi.pdfIn PDF document text
    • https://cdn.sqhk.co/bisegepamitu/gE90ge4/tesojepagizamij.pdfIn PDF document text
    • https://cdn.sqhk.co/nixafusoda/agfPnhd/slots_vegas_magic_free_casino_slot_machines_gametwist.pdfIn PDF document text
    • http://nemurirewokow.iblogger.org/rilufezeragomupoxo.pdfIn PDF document text
    • http://fruitik.space/24117630045ct37r.pdfIn PDF document text
    • http://women-ita.space/jezavigovasugug9chzx.pdfIn PDF document text
    • https://cdn.sqhk.co/denalivek/85ihidZ/battleground_survival_mod_apk_android_1.pdfIn PDF document text
    • http://leree4.club/stump_root_device_is_patched54g7m.pdfIn PDF document text
    • https://cdn.sqhk.co/numovasovev/yibbjaF/soccer_champions_real_dream_football_apk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jojisoxig.epizy.com/highland_laddie_sheet_music_bagpipes.pdfIn PDF document text
    • http://pobalupusovejo.epizy.com/47363250893.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_off0000dd36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD36 5408 bytes
SHA-256: a440ff5727f97ba2942e169752fe28784f492303b6f9fa151fd5c43aaf948c4c
font_01_sfnt_off0000ef8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF8F 9972 bytes
SHA-256: e96bd95b742d7e7a113c6dcd125b670d8dce6b00f85e161bd538122a68f023d9