Malicious PDF — malware analysis report

Static analysis result for SHA-256 566ab1ddc347b623…

MALICIOUS

PDF

74.4 KB Created: 2021-02-27 03:44:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 90f3e06d4c794b9a7690bad9ac1f17cd SHA-1: 46e56a88ea855b693efa47782e75034b84b30133 SHA-256: 566ab1ddc347b623bffa24e3a4562e7e842cc74dc8a7e248393a6e91cf65275e
126 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
  • 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://dugedepap.ru/award?keyword=2d+drawing+software+free+download+windows+7 PDF link annotation
    • https://cdn.sqhk.co/jofijoju/bojhfjf/egg_wars_tournament_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/fujotojaxob/7igTYgi/56218170121.pdfIn PDF document text
    • https://cdn.sqhk.co/linidivez/1ifjgij/train_your_brain_for_success.pdfIn PDF document text
    • https://cdn.sqhk.co/xejexeremiso/PwhhjJN/bopojof.pdfIn PDF document text
    • http://jivusibofonefud.mygamesonline.org/3291250877.pdfIn PDF document text
    • https://cdn.sqhk.co/remowiwa/hbgebgg/29220899602.pdfIn PDF document text
    • https://cdn.sqhk.co/silinetufid/daghjb6/free_online_slot_games_for_real_money.pdfIn PDF document text
    • http://xodaxedepapopox.mygamesonline.org/36807632740.pdfIn PDF document text
    • https://cdn.sqhk.co/toromerepowa/ibNHmhh/xaxavajubewoxigorubalu.pdfIn PDF document text
    • http://lunatan.medianewsonline.com/9008332634.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kititone.epizy.com/54533243914.pdfIn PDF document text
    • http://wilopomuba.epizy.com/wooden_block_puzzle_app_for_android.pdfIn PDF document text
    • http://rususekobijo.myartsonline.com/introduction_to_quantum_mechanics_2nd_edition_solutions.pdfIn PDF document text
    • http://zijiwaras.onlinewebshop.net/nukasi.pdfIn PDF document text
    • http://nejimafalun.onlinewebshop.net/27465107236.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_off0000e796.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE796 5284 bytes
SHA-256: 49e848146a12f6e3ccf45a23b8a9d11c3398a6d37cdd8d74c4897be821c73b9d
font_01_sfnt_off0000f9bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9BC 10196 bytes
SHA-256: c6f653ca78e06acb06006f4a5a026b48a9521a1a0d7e6d41713c3ab55b1329ec