Malicious PDF — malware analysis report

Static analysis result for SHA-256 e12996f4248fc26f…

MALICIOUS

PDF

68.7 KB Created: 2021-02-17 15:58:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: cce5494d604a6a3972f8f6b049eada98 SHA-1: e49f55cd112352e3e147be85e427c231bc0f4f9e SHA-256: e12996f4248fc26feed097ed0740c8c8fe5a77cd97adb2c098609c15fb7f7095
134 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
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=dna+electrophoresis+lab+answers PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4390373/normal_5fe35e12bb472.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427821/normal_5fcbde7d75f3f.pdfIn PDF document text
    • http://ita-yog.space/english_worksheets_for_grade_1wxyfr.pdfIn PDF document text
    • https://cdn.sqhk.co/seranowe/lmjc7St/hd_video_player_app_for_laptop.pdfIn PDF document text
    • http://gakivako.iblogger.org/chemistry_limiting_reagent_worksheet_2.pdfIn PDF document text
    • http://philonio.online/formal_lab_report_example_physicslxr2h.pdfIn PDF document text
    • https://cdn.sqhk.co/zimopaji/gO6YhcC/jimuel_pacquiao_gf_2020.pdfIn PDF document text
    • http://khanapoorti.com/426560633674lldm.pdfIn PDF document text
    • https://cdn.sqhk.co/zedawuzijis/fxYiche/vimapogakexafavewanidoj.pdfIn PDF document text
    • http://fowozomogijib.iblogger.org/55687701556.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495390/normal_5fedd0f299f6a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375704/normal_600ad6b6caf00.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://puzufowos.epizy.com/twitter_video_to_mp4_er.pdfIn PDF document text
    • http://vevojadiren.epizy.com/xenajat.pdfIn PDF document text
    • http://wufiwujexuwinaw.epizy.com/40596353467.pdfIn PDF document text
    • http://kozusabupo.epizy.com/pubire.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_off0000d1e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1E5 5252 bytes
SHA-256: dd035aaae72bdbc1b4f7fe61d10b39d4d99a49b39eb224b80604a11fd9a73bd2
font_01_sfnt_off0000e3cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3CB 9980 bytes
SHA-256: 802ed76d9bee1a3a028395f23d8d43e68f44234b1b2623571ecbfa93669a47a8