Malicious PDF — malware analysis report

Static analysis result for SHA-256 060ce4fba6d808f6…

MALICIOUS

PDF

63.4 KB Created: 2021-02-03 16:13:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: ac6ffe873e51b41c6e86f3afdeffb70c SHA-1: 8d76f8ac2d3c2824fdc7115161b2d0aec4c13832 SHA-256: 060ce4fba6d808f689c9439381a7057da5cff48034b1980cfb971b01cf69beec
184 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
  • 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://yafferge.ru/wb?keyword=agnus%20dei%20chords%20key%20of%20c%20pdf In PDF document text
    • https://cdn.sqhk.co/kurotevu/lSi3gcB/soundboard_among_us_mp3_lyrics.pdfIn PDF document text
    • https://cdn.sqhk.co/zuxosutuku/ggT1V6M/tom_and_jerry_bike_race_game.pdfIn PDF document text
    • http://gitipakivo.iblogger.org/anjathey_movie_audio_songs.pdfIn PDF document text
    • https://cdn.sqhk.co/xenekifa/igHRdpK/metronome_beats_pro_apk_download_free.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385635/normal_5fda5ffa7cde0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391620/normal_5fcacdb9922d4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417824/normal_5fde3c868ebf8.pdfIn PDF document text
    • http://pokanupat.iblogger.org/20082913887.pdfIn PDF document text
    • https://cdn.sqhk.co/fuxuduxexi/fjghbjd/16825805107.pdfIn PDF document text
    • https://cdn.sqhk.co/rubogomuweme/cBqhaje/20299286254.pdfIn PDF document text
    • https://cdn.sqhk.co/soxuxopova/ugiigaL/82657581653.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zekarevuwo.epizy.com/bloons_td_6_update_free.pdfIn PDF document text
    • http://zepakom.rf.gd/offline_study_bible_for_pc.pdfIn PDF document text
    • http://sedoguzod.rf.gd/allah_allah_nabi_ka_gharana.pdfIn PDF document text
    • http://lepefefila.epizy.com/zaseduvarozuzeluxedipopix.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_off0000bb3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB3F 5332 bytes
SHA-256: fb25a29ac0bc1d73587d0da5ed6cadb925f5252b873a8607e9765f69d55c4814
font_01_sfnt_off0000cd6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD6F 10328 bytes
SHA-256: 7e600499e5dd73d89b53381bfb6d8b6a1ba5b5261acf25e9f5297a243e11ccdc