Malicious PDF — malware analysis report

Static analysis result for SHA-256 893ef3d17264d407…

MALICIOUS

PDF

64.2 KB Created: 2021-02-12 10:22:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e90799e8699af06792bc03d94992d0c0 SHA-1: 92739eab0f5d799c214906664114e14657fc53b8 SHA-256: 893ef3d17264d407a76cc232d22339167d3dda39650a668746e2cb6ee138e8c6
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://bologen.ru/wix?keyword=biology+chapter+4+vocabulary+review+worksheet+answers PDF link annotation
    • http://xurivikarode.iblogger.org/gta_wasted_sound_effect_free.pdfIn PDF document text
    • http://look-hotel.com/bluestacks_2_windows_7_32_bitsqpun.pdfIn PDF document text
    • http://2gusevshop.space/39650537126uuye4.pdfIn PDF document text
    • https://kajipeluvo.weebly.com/uploads/1/3/4/3/134318391/xizoxigu.pdfIn PDF document text
    • http://nnorm-id.com/voverigazoxarbhiz.pdfIn PDF document text
    • http://crawlmqyu.space/rocket_sky_game_hackguheo.pdfIn PDF document text
    • http://italysummer.space/zuzapazobakfsb3.pdfIn PDF document text
    • https://roxogarafuxor.weebly.com/uploads/1/3/1/1/131164132/df1365276.pdfIn PDF document text
    • https://zubisixoligifi.weebly.com/uploads/1/3/4/4/134479514/nisigubelifat-wevojerox.pdfIn PDF document text
    • http://medicinfo.online/c_template_instantiation_compilexxjro.pdfIn PDF document text
    • http://bestita.space/autodesk_maya_shortcut_keyskhpum.pdfIn PDF document text
    • https://cdn.sqhk.co/minederepa/jZ5ighf/car_driving_simulator_mod_apk.pdfIn PDF document text
    • https://puxodemidumez.weebly.com/uploads/1/3/5/3/135345879/bigobezemapu-zevurejemikejo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lojupodinitaxug.epizy.com/yiruma_piano_sheet_book.pdfIn PDF document text
    • http://pofazutufugu.epizy.com/belur_math_aarti_song_free.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_off0000bfd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFD4 5792 bytes
SHA-256: 320c9f1a52ee0913b1c962e117c1b76e8ef2f8ea5ace491d97b2b8d976bd2765
font_01_sfnt_off0000d3ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3AB 9444 bytes
SHA-256: 21fb547b77f447f8c3dd79024537857006745a4826be09a5bacda30f9cc0048f