Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd1bc758d7b45ef9…

MALICIOUS

PDF

73.0 KB Created: 2021-02-19 03:43:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 3d0aeba5f1775393683273bd700eb3f1 SHA-1: 7c0f1d21d9d03119f2649e4d8894ec3f59c70e0d SHA-256: fd1bc758d7b45ef9debbd8521765ff6fdff37f63cd405a3fe94df231d9e3e887
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://druttle.ru/wix?keyword=bonnie+the+bunny+fan+art PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4444353/normal_5ff45857a5910.pdfIn PDF document text
    • https://cdn.sqhk.co/setawigiz/ididQcn/fall_guys_ultimate_knockout_download_ios.pdfIn PDF document text
    • http://barcaporirternet-interbank-pe.com/19515696914ffp8q.pdfIn PDF document text
    • http://popularchoice.space/bacaan_surah_al_mulk_mp3_free_downloady7e8j.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414864/normal_5ffe9e278f821.pdfIn PDF document text
    • http://weraka.online/att_cl2940_manual83n6v.pdfIn PDF document text
    • https://vugawijop.weebly.com/uploads/1/3/4/5/134594760/lewizib-ligetarenopu-kikedak.pdfIn PDF document text
    • https://miduginoxem.weebly.com/uploads/1/3/4/8/134892771/ralawowesijanugire.pdfIn PDF document text
    • https://tenekitu.weebly.com/uploads/1/3/4/0/134018212/26cca922.pdfIn PDF document text
    • https://cdn.sqhk.co/kimejijomaki/jdBhehc/stick_war_legacy_pc_free.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446400/normal_6026896b101c3.pdfIn PDF document text
    • https://linasiwafeki.weebly.com/uploads/1/3/1/3/131380288/623e0.pdfIn PDF document text
    • https://cdn.sqhk.co/gafisasiwu/9jF7osM/nomav.pdfIn PDF document text
    • http://tertov.xyz/cycling_cap_pattern_free40dbm.pdfIn PDF document text
    • https://cdn.sqhk.co/boxepupovemu/hQhhiaV/elifoot_2019_para_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/mixaluwekitu/jviggfS/driving_school_classic_game_mod_apk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367287/normal_5fe1878fc01b0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381541/normal_5fd1a86368144.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e2ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2FF 4936 bytes
SHA-256: 824ef955b517f29315e19ac178a143f94bd6e9502321b6d75738737b643f2118
font_01_sfnt_off0000f3d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3D0 10372 bytes
SHA-256: af6bfa2229ca2ba3a0b5599c0675ae5949f48435345b5eb2c4c971a6acf04873