Malicious PDF — malware analysis report

Static analysis result for SHA-256 12c0107946e3578d…

MALICIOUS

PDF

72.8 KB Created: 2021-02-24 08:12:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: d0035a7f2bc289b0f6d38733bc257f37 SHA-1: f6258cbc54ed3432c1ec4b564e7c5aeae336efa9 SHA-256: 12c0107946e3578d0a4644b471dbfcf41a3371673fad377ee16962bb51e1d304
184 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
  • 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.
  • 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.
  • 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://crophysi.ru/wix?keyword=2003+hyundai+tiburon+repair+manual In PDF document text
    • https://cdn-cms.f-static.net/uploads/4451945/normal_6012aa89c1b0e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452618/normal_60035f06b2499.pdfIn PDF document text
    • https://cdn.sqhk.co/fugolamudara/d3jljjb/mumofovanavan.pdfIn PDF document text
    • http://sumidabitax.iblogger.org/vemajug.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393041/normal_5fed0e7edab31.pdfIn PDF document text
    • https://cdn.sqhk.co/duvetezoje/DzhigdW/diy_hamster_cages_wood.pdfIn PDF document text
    • http://uscreditinquiry.info/4407908405179srt.pdfIn PDF document text
    • https://cdn.sqhk.co/sibamoxa/jjFxhfR/lily_s_garden_storyline_day_21.pdfIn PDF document text
    • https://cdn.sqhk.co/jizesusaxeta/cAZMohc/granny_legend_hero_mode_level_9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380680/normal_600be53da3ae5.pdfIn PDF document text
    • https://cdn.sqhk.co/letinumi/iNieXij/best_android_video_editor_for_youtube_channel.pdfIn PDF document text
    • http://car-test.pro/desktop_background_themes8imsk.pdfIn PDF document text
    • http://wabixekere.iblogger.org/58854871362.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://faduguxilanapeg.epizy.com/animal_worksheets_printable.pdfIn PDF document text
    • https://s3.amazonaws.com/zuponefi/66160850127.pdfIn PDF document text
    • http://vukekabexipog.rf.gd/vumabazazilajogirajema.pdfIn PDF document text
    • https://s3.amazonaws.com/vovopafubipu/95037214570.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_off0000dd27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD27 5604 bytes
SHA-256: 6c22fbea882c6cc65e8fcab3081efcb1a383c7a23dde226ee4ad6a71be386f8b
font_01_sfnt_off0000f004.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF004 11668 bytes
SHA-256: 791f2d3f113680ca46a06e999676b953d8bba92abd48d335ae4d25dc4ed9fc1f