Malicious PDF — malware analysis report

Static analysis result for SHA-256 eaea3de1438264cb…

MALICIOUS

PDF

72.7 KB Created: 2021-02-24 21:27:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: d54308358ba0f213a454009982bf355f SHA-1: 1a23a110349e8ebef82b7a9bdc369174095cad3b SHA-256: eaea3de1438264cb1171b7d5e6cbe1efd292a76726997f735e761c81a09e2d10
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://seumenha.ru/award?keyword=lenovo+3000+y500+wifi+driver+for+windows+7 PDF link annotation
    • http://robugipunebib.mygamesonline.org/how_to_clean_filter_on_dyson_dc25.pdfIn PDF document text
    • https://poxefapujo.weebly.com/uploads/1/3/5/3/135312596/8a437cf9b9ddbe0.pdfIn PDF document text
    • https://nupinegudoxaxu.weebly.com/uploads/1/3/5/3/135350485/lafekorip_lemoki.pdfIn PDF document text
    • http://tupaxeguna.scienceontheweb.net/what_is_tcp_ip_port_for_printer.pdfIn PDF document text
    • http://rizaxezo.iblogger.org/55065144435.pdfIn PDF document text
    • https://podotetu.weebly.com/uploads/1/3/4/0/134017986/8156ff.pdfIn PDF document text
    • https://juruditusevowe.weebly.com/uploads/1/3/5/3/135329261/dukukovilo.pdfIn PDF document text
    • https://tudegikugil.weebly.com/uploads/1/3/5/3/135317618/6e54706.pdfIn PDF document text
    • https://pilonalamajavex.weebly.com/uploads/1/3/1/1/131164122/9508644.pdfIn PDF document text
    • https://mitometivu.weebly.com/uploads/1/3/6/0/136094147/sugoxaj-mozalol-nepate.pdfIn PDF document text
    • http://bumasujofoj.getenjoyment.net/focusrite_scarlett_solo_ableton_live_lite.pdfIn PDF document text
    • https://vidokabotofasi.weebly.com/uploads/1/3/4/8/134868814/wasuwega.pdfIn PDF document text
    • https://wesedujixezibo.weebly.com/uploads/1/3/1/6/131606467/931252.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448556/normal_6029ab08476c9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://puredaw.rf.gd/asus_x008d_firmware_7._0.pdfIn PDF document text
    • http://lojetewope.epizy.com/supisejesirizunufixafig.pdfIn PDF document text
    • http://gezixerigalejeb.rf.gd/43472941102.pdfIn PDF document text
    • http://jeborawaleko.atwebpages.com/43258312702.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_off0000dde9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDE9 5364 bytes
SHA-256: 84d17a9330c3b7d2a27cfd4c49a7eaa1013d23fda4fd64f708174ef14767e940
font_01_sfnt_off0000f073.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF073 11236 bytes
SHA-256: 42bb266634ac4e63852e326df530b478416c0456c0d27175e180959a47b5030b