Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c211415ed198f3b…

MALICIOUS

PDF

61.1 KB Created: 2021-02-07 18:00:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: ef4cbc61e9c2b2b8a821d7e9e6138138 SHA-1: 9638b9d1ffff7e0364d0d6d341ca141797ee74e1 SHA-256: 0c211415ed198f3b4dea1add2c653aaec401e297d73fb08baad76490112dc809
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wb?keyword=ansul%20210%20manual In PDF document text
    • https://cdn-cms.f-static.net/uploads/4406514/normal_6011edab23e92.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410443/normal_5ff14b122d30e.pdfIn PDF document text
    • https://cdn.sqhk.co/gixejefi/akgfvRe/niwopa.pdfIn PDF document text
    • http://kemytbok.xyz/aristotle_onassis_biographyg8f3a.pdfIn PDF document text
    • http://ridegibulas.22web.org/calgary_jobs_information_security.pdfIn PDF document text
    • http://organic100.fun/febuxuzaxipufoxanepen8kcx0.pdfIn PDF document text
    • https://dedopaka.weebly.com/uploads/1/3/4/4/134498192/gaxewunaguzige.pdfIn PDF document text
    • http://startovaya.ru/508839662195yhz2.pdfIn PDF document text
    • http://endi-itali.space/guilty_conscience_070_shake_tame_impala_lyricsacqr7.pdfIn PDF document text
    • https://cdn.sqhk.co/jonimaze/ZhcyKTJ/pukokivimira.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453134/normal_5fed5eb48db76.pdfIn PDF document text
    • http://cashfree.store/831067162520u9gg.pdfIn PDF document text
    • http://chategratis.online/538711062vpud5.pdfIn PDF document text
    • http://psylath.com/us_army_infantry_iphone_wallpaperkg4n8.pdfIn PDF document text
    • https://cdn.sqhk.co/wukufazujuv/idiideV/bein_sports_usa_cost.pdfIn PDF document text
    • https://cdn.sqhk.co/rolidofajug/gQnjcjg/14956232374.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rigirulame.epizy.com/cyber_security_information_security_specialist_salary.pdfIn PDF document text
    • http://kaveled.epizy.com/65532184097.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_off0000b70a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB70A 5048 bytes
SHA-256: 2b345f44c76cf2f3df2a4fe5aa87d178bf06e1a3f06a51a7019b71906f191449
font_01_sfnt_off0000c82b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC82B 9184 bytes
SHA-256: 2439f72fe85ab217349152c17e2554d43bd25f17be086149d4b72b85ee940d61