Malicious PDF — malware analysis report

Static analysis result for SHA-256 3686fbb79c8f6d8d…

MALICIOUS

PDF

71.9 KB Created: 2021-03-01 15:03:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 113df3df122abf27886159585f4c8ce8 SHA-1: dd6a930cc181e94692bba4a759451c75ffa67ea5 SHA-256: 3686fbb79c8f6d8d928003d1b87340ac15d05889521d056dc6e489a49144fe5f
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • 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://botokaw.ru/award?keyword=2021+maserati+granturismo+price PDF link annotation
    • https://cdn.sqhk.co/wujugojuse/gia9INB/83555861414.pdfIn PDF document text
    • https://cdn.sqhk.co/desiruzag/ifIjjCA/suwopilitelifo.pdfIn PDF document text
    • https://cdn.sqhk.co/borefigux/xajiget/lumivogizudopej.pdfIn PDF document text
    • https://cdn.sqhk.co/fegibidizog/h9iiMhj/sunshine_house_aiken_sc_news.pdfIn PDF document text
    • https://cdn.sqhk.co/fefamuve/F2kjb2Y/4530589044.pdfIn PDF document text
    • https://cdn.sqhk.co/tinolaseja/0Mghdls/chat_virtual_colsanitas.pdfIn PDF document text
    • https://cdn.sqhk.co/lovojekaboxi/icZOoxZ/imao_meaning_in_text_message.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461484/normal_60200a3b9a932.pdfIn PDF document text
    • https://cdn.sqhk.co/mejiwimuza/jgIxhgc/ancient_roman_battle_tactics.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401538/normal_5fdbd67b8c344.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469104/normal_5fc9699769dce.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pebimomedunuzux.epizy.com/coreldraw_x7_bagas31.pdfIn PDF document text
    • http://lavovexerok.epizy.com/rtaa_trane_chiller_manual.pdfIn PDF document text
    • http://lubepigufig.rf.gd/not_a_cup_of_tea_quotes.pdfIn PDF document text
    • http://muzezal.rf.gd/lenovo_g50-_30_80g0_bios.pdfIn PDF document text
    • http://nonakiwobituk.rf.gd/ski_report_scotland_glenshee.pdfIn PDF document text
    • http://mijuguxugatuk.epizy.com/dcms_report_module.pdfIn PDF document text
    • http://jaxirelogalitis.epizy.com/jupenewugosabakinab.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_off0000dcaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCAA 5452 bytes
SHA-256: 7d6feb8198caf82a9670321e82bde315a173d5b8e727535ba2d5bf7fa1e73412
font_01_sfnt_off0000ef24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF24 10416 bytes
SHA-256: 310b294eb669c325b9bafa276911cc4541b580fe12265959a71552ffe91c33f3