Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a6ec23947868ac1…

MALICIOUS

PDF

64.9 KB Created: 2021-01-30 23:54:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 0bb8c45cc253cea6de69958db83d8b03 SHA-1: 2baa233d1d34acd2389d1270983bfde01f290a53 SHA-256: 2a6ec23947868ac197cd84e5d3e0e49a928aea5eee9ec5ed472ac77b686d4e07
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://jacksth.ru/wb?keyword=art%20of%20war%20tattoo%20studios%20new%20braunfels PDF link annotation
    • https://vonewujin.weebly.com/uploads/1/3/1/3/131380349/gisaponamukodoro.pdfIn PDF document text
    • http://proita.fun/521605575081j1up.pdfIn PDF document text
    • http://axecheat9.xyz/cake_maker_machine_for_homeowj4v.pdfIn PDF document text
    • https://zeteleginogegop.weebly.com/uploads/1/3/4/5/134526156/makevo.pdfIn PDF document text
    • https://vusuvorolom.weebly.com/uploads/1/3/4/5/134501440/vowumevoselo-fotorebuli-momiravugimusos.pdfIn PDF document text
    • https://zitozujenuzudip.weebly.com/uploads/1/3/4/0/134042901/b022ad7fb9b670.pdfIn PDF document text
    • https://fanejutasoja.weebly.com/uploads/1/3/5/3/135399707/xuzibedodin.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gavenivifi.rf.gd/soundcloud_files_online_free.pdfIn PDF document text
    • https://s3.amazonaws.com/zukogi/92301753410.pdfIn PDF document text
    • http://renenubulasuf.rf.gd/jurassic_world_the_game_apk_obb.pdfIn PDF document text
    • http://wepezip.epizy.com/android_app_store_screenshot_sizes.pdfIn PDF document text
    • http://mejefelutirarej.epizy.com/myeconlab_answers_chapter_4.pdfIn PDF document text
    • http://lirebeto.rf.gd/tuxunupuxupisipagibutix.pdfIn PDF document text
    • http://figuwegexode.rf.gd/guideline_tours_dubai.pdfIn PDF document text
    • http://falufobi.epizy.com/42832847875.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_off0000c22e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC22E 5124 bytes
SHA-256: 7e6795c6e7ee74e2d6a6dacbc1258872a13e8c427d341f5a76fa380d3c89f1ba
font_01_sfnt_off0000d3b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3B7 10268 bytes
SHA-256: 9da95aa462f8ff811bed3a1e10bb05366275cf7941dba96b0234383ded3c84aa