Malicious PDF — malware analysis report

Static analysis result for SHA-256 0482e421c588aa6a…

MALICIOUS

PDF

72.8 KB Created: 2021-01-25 01:51:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: bb6a646cf8bf87b1c41f4beb2662b45a SHA-1: 9018eb910a3346415e8838f268103c69cb77202d SHA-256: 0482e421c588aa6ad312a5d778f53704f289b0af8b26709d79bdab7e822461e7
244 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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 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.
  • 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://yafferge.ru/123?utm_term=what+is+a+halide+torch In PDF document text
    • https://cdn.sqhk.co/lilavokolet/Eheii60/44406625297.pdfIn PDF document text
    • https://cdn.sqhk.co/bezorufuv/ghqgdOo/the_trip_to_bountiful_movie_cast.pdfIn PDF document text
    • https://cdn.sqhk.co/jowowibow/jXH9aqI/clash_of_clans_hack_gems_coins_and_elixir.pdfIn PDF document text
    • https://cdn.sqhk.co/fobonelaga/cNhiOjj/terry_kiser_weekend_at_bernie_s_3.pdfIn PDF document text
    • https://cdn.sqhk.co/vilomikov/khdgi21/mimisadilawotafajozipibu.pdfIn PDF document text
    • https://litisenos.weebly.com/uploads/1/3/1/0/131071047/zixuwuxexogela.pdfIn PDF document text
    • https://xepesirivow.weebly.com/uploads/1/3/1/4/131408502/00edb623.pdfIn PDF document text
    • https://zobatovegu.weebly.com/uploads/1/3/0/8/130873738/e5d6bd8642aab9.pdfIn PDF document text
    • http://all-system7.xyz/rules_of_survival_gameplay_pcs4vvz.pdfIn PDF document text
    • https://cdn.sqhk.co/jidobimatu/jhqu0hc/dojewiwabozenuvogaxipuvid.pdfIn PDF document text
    • https://dugeditukuvil.weebly.com/uploads/1/3/4/7/134723955/jojepawivefeki_zirul_tamor.pdfIn PDF document text
    • https://soxoxalumowaju.weebly.com/uploads/1/3/4/7/134768556/4cce8a6ec7.pdfIn PDF document text
    • https://sadozilodefizon.weebly.com/uploads/1/3/4/6/134659806/fizugofelizeke.pdfIn PDF document text
    • https://nagugopusoz.weebly.com/uploads/1/3/4/6/134645600/mazifobobi-lunifesijot-mofulikasibu.pdfIn PDF document text
    • https://cdn.sqhk.co/bidomutarili/hhpY8jb/65995411773.pdfIn PDF document text
    • https://rabidibizuzej.weebly.com/uploads/1/3/4/6/134648686/likofe-noperofupoj-javaso-jabifumom.pdfIn PDF document text
    • https://cdn.sqhk.co/jivomawufem/jchj2hf/beyblade_battle_games_free_download.pdfIn PDF document text
    • https://nesipemuwazona.weebly.com/uploads/1/3/4/8/134881126/84eb818efd9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000de34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE34 5040 bytes
SHA-256: 99347fe7bd434d30e5e45835638026c9f1524b6f363f79edfbb409d122036be0
font_01_sfnt_off0000ef59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF59 11760 bytes
SHA-256: 96f4a1b4f6e33e176ad5a4e74212cf8fbdc2f7733960c754e6c859fd37607bcb