Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2e6de42b7daa31f…

MALICIOUS

PDF

72.2 KB Created: 2021-02-14 14:24:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 78b26a1586b3da7c2d4d2e0e8bc758fb SHA-1: b2c0ad1fc40044446ab8eaa81bad1f42bbadcd65 SHA-256: e2e6de42b7daa31fbc6d6a26e0508dfdb142b4b5b40938b98247df20d779490a
126 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
  • 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://druttle.ru/wix?keyword=phase+change+practice+worksheet PDF link annotation
    • https://cdn.sqhk.co/fimirexuf/KhgHihD/89209661942.pdfIn PDF document text
    • https://cdn.sqhk.co/pijuvedozuw/UidKI9J/jimoz.pdfIn PDF document text
    • http://bofinaposo.iblogger.org/apostle_paul_timeline.pdfIn PDF document text
    • https://cdn.sqhk.co/nuroteditu/hgie80t/can_you_break_dungeon_walls_terraria.pdfIn PDF document text
    • http://guwilos.iblogger.org/explain_latter_and_former.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416332/normal_60002d7081065.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466366/normal_5fe7e2d7275c5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480736/normal_5fef89762f72c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403534/normal_60049592b9786.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475203/normal_60146931160ce.pdfIn PDF document text
    • https://cdn.sqhk.co/nupumusu/bHhZCvi/fish_eat_fish_3_players_hacked_online.pdfIn PDF document text
    • https://cdn.sqhk.co/dadirowuj/lnz09hd/off_road_4x4_driving_mod_apk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/nimuwet/lunuwefab.pdfIn PDF document text
    • https://s3.amazonaws.com/woneketelak/11318394634.pdfIn PDF document text
    • http://zifezerolivuba.epizy.com/macleans_university_guide_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/voxipanovigepiv/ariesms_leeching_guide.pdfIn PDF document text
    • http://mirokuf.rf.gd/vimabuzegapanabilu.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_off0000de8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE8B 5320 bytes
SHA-256: 7e58ebf33648e89a241e23770622f2f3776a0a965a3ba5aa6cf0f36f06e689af
font_01_sfnt_off0000f0b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0B3 10168 bytes
SHA-256: e532c49f67537c1229b544837465fee6fd92891d73fc677f988ce7cd4cc1d89c