Malicious PDF — malware analysis report

Static analysis result for SHA-256 d722f8576e3cfcb9…

MALICIOUS

PDF

73.8 KB Created: 2021-02-14 18:55:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 033f228e005d0c3350c9aaaf91bdbdc0 SHA-1: 782db08427d3edf0e70c9dab0c16c61f6807da4d SHA-256: d722f8576e3cfcb9fef2b84bc4ed57beafbfdaeb67db60b64a37f70dc27be088
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://maypoin.ru/aws?utm_term=carnal+knowledge+movie+free PDF link annotation
    • http://whysmall.space/how_to_think_when_you_draw_with_lorerxqmj.pdfIn PDF document text
    • https://cdn.sqhk.co/tulotunofuz/cuenVic/beat_swiper_download.pdfIn PDF document text
    • https://cdn.sqhk.co/tuxonewebuke/ijjb4fY/48119589766.pdfIn PDF document text
    • http://bujufamamaw.22web.org/aspergillus_guidelines_2017.pdfIn PDF document text
    • https://pipenuxoj.weebly.com/uploads/1/3/1/4/131406698/jixiger.pdfIn PDF document text
    • http://xbet1.fun/22644819250lixp.pdfIn PDF document text
    • http://cyberlife.store/17827423917uapff.pdfIn PDF document text
    • http://shoop-fr.ru/dash_micky_adventure_minnie_mousex0695.pdfIn PDF document text
    • http://dutusejutax.22web.org/minecraft_mountain_village_map.pdfIn PDF document text
    • http://itawegan.fun/norton_intro_to_literature_13th_editvx0lw.pdfIn PDF document text
    • http://prostochillforum.fun/illusion_of_lifehm1ti.pdfIn PDF document text
    • http://getchambre.xyz/can_you_itunes_onto_chromebook3disx.pdfIn PDF document text
    • http://repair-monokoles.ru/38053353735lwgq8.pdfIn PDF document text
    • https://cdn.sqhk.co/webepinovet/2VK88jd/vuzojumawisigub.pdfIn PDF document text
    • http://wowezixuxaxu.22web.org/u_android_zestech.pdfIn PDF document text
    • https://nafutitis.weebly.com/uploads/1/3/6/0/136053715/retojaku-xokojipagades.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fulisawuxulinis.rf.gd/biwixiwub.pdfIn PDF document text
    • http://fuguxudurod.rf.gd/mulberry_silk_charmeuse_sheets.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_off0000e165.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE165 5168 bytes
SHA-256: 503d8c769d6b6eaafa015b0097750e66c687e50676afd6b9b2add30db8020b73
font_01_sfnt_off0000f303.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF303 11680 bytes
SHA-256: 07ae609a2a248887ed9b4d97e3903a1597e4d280fcda6ea2e558afbc47192be4