Malicious PDF — malware analysis report

Static analysis result for SHA-256 e92e6882e4849989…

MALICIOUS

PDF

74.8 KB Created: 2021-02-02 09:40:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 95f874054b49cb5297cadb6a88d2af38 SHA-1: d2ddfd0bcdeb97a1f438da486046edab4b021334 SHA-256: e92e6882e4849989083893c6629c0f9c9560068fe30d07feeea78d0b0a3e31f2
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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/aws?utm_term=capture+one+user+styles In PDF document text
    • https://cdn-cms.f-static.net/uploads/4457839/normal_600ef7d6b7681.pdfIn PDF document text
    • https://cdn.sqhk.co/kizajituxab/GPqiaha/tank_battle_war_commander_online.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455642/normal_6012f9a598c0a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447640/normal_5ffd06cc3c7b2.pdfIn PDF document text
    • https://delazodudiz.weebly.com/uploads/1/3/4/5/134591817/movaja.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424637/normal_5ff6c344ca4c8.pdfIn PDF document text
    • https://nateguwab.weebly.com/uploads/1/3/1/4/131453796/dogopumo_jomewovoxeli.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379959/normal_600f47e145964.pdfIn PDF document text
    • https://velonifiwivuli.weebly.com/uploads/1/3/0/7/130739758/7beaab17128.pdfIn PDF document text
    • https://cdn.sqhk.co/lerapuraroke/jE44iez/minecraft_kill_creeper_without_them_exploding.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501961/normal_5ffa1d36e950e.pdfIn PDF document text
    • https://zesadokalefon.weebly.com/uploads/1/3/2/6/132681767/zesubiviboput_loden.pdfIn PDF document text
    • https://cdn.sqhk.co/digubamot/Pjbjh1o/botigod.pdfIn PDF document text
    • https://nikigetevakawu.weebly.com/uploads/1/3/1/4/131413362/127802.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466664/normal_5fc94f5271979.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488837/normal_5fe110218421b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://goruloloxoz.rf.gd/spelling_numbers_out_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/retobifulipo/spotify_premium_apk_2018_gratis.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_off0000e948.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE948 4820 bytes
SHA-256: e772164e1d83f2597b1c14886bb640336dc7cd0321b72be440a750af1372c64e
font_01_sfnt_off0000f9c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9C0 10692 bytes
SHA-256: 24f6a4ca105e70374465beb44c4625dca3754ce0599a89db6866b687a9864e76