Malicious PDF — malware analysis report

Static analysis result for SHA-256 0155f7428883883a…

MALICIOUS

PDF

72.9 KB Created: 2021-02-19 07:33:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 7ec73e0b3a02d3bfc608e597db2e1310 SHA-1: ee127851d5f4242250337f9827ddf1be0b39e5c3 SHA-256: 0155f7428883883a2f3439615e24f1cc90507b0c42615d7ce7a411d73b1d8f3e
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jottigo.ru/aws?utm_term=evangelism+and+the+sovereignty+of+god+summary PDF link annotation
    • http://oneitstore.pro/aashiqui_2_song_whatsapp_status_videofg40x.pdfIn PDF document text
    • http://aviabileti.ru/html_to_python_with_css37on9.pdfIn PDF document text
    • https://bazofaxeretaw.weebly.com/uploads/1/3/4/8/134868688/9726061.pdfIn PDF document text
    • https://zezebeburopixem.weebly.com/uploads/1/3/5/3/135326834/cc29d459d39b31b.pdfIn PDF document text
    • https://tofudilasikota.weebly.com/uploads/1/3/0/9/130969343/f181b26850d.pdfIn PDF document text
    • http://stroymarketmetal.ru/civilization_6_russia_guidezfjhj.pdfIn PDF document text
    • http://tufidifegoz.66ghz.com/noida_building_bye_laws_2017.pdfIn PDF document text
    • http://importants.space/androidx_toolbar_text_colorrmp21.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415544/normal_601023f7eb566.pdfIn PDF document text
    • http://maxufadewodov.22web.org/playstation_store_game.pdfIn PDF document text
    • https://vowabogebem.weebly.com/uploads/1/3/0/7/130775978/busisoxulunol.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vofadoloves/visual_studio_code_reformat_code_shortcut.pdfIn PDF document text
    • https://s3.amazonaws.com/zoromexemuzid/axis_camera_station.pdfIn PDF document text
    • https://s3.amazonaws.com/rovikibixu/15406460143.pdfIn PDF document text
    • http://kujazidi.epizy.com/punabate.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_off0000e1f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1F1 5440 bytes
SHA-256: 5d8220dd665deac042e686a3d94d1754a50a67f7622dee6622df4ea00172947a
font_01_sfnt_off0000f458.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF458 10028 bytes
SHA-256: f1e183642d8329055840ca4cff56eafccf16bdeb590d3fefeb888ce4cbae6845