Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e472b0fa50092a4…

MALICIOUS

PDF

71.5 KB Created: 2021-02-06 07:35:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 41549e3f7aeb884ba606be4ce16e2edb SHA-1: 95b878bb0162edc9e708ab03f983768c32952cd6 SHA-256: 6e472b0fa50092a43775b7ca5b370b95454f3c7bcd6df5802c2d9b8c74ea3884
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/aws?utm_term=letter+of+recommendation+internship+template PDF link annotation
    • http://otomail.business/rig_veda_translation_in_marathij4ci1.pdfIn PDF document text
    • http://presentinsta.online/vefazaf2wzoc.pdfIn PDF document text
    • http://googsnat.space/cambridge_isotope_laboratories_nmr_solvent_data_chartbplbt.pdfIn PDF document text
    • https://tazumeter.weebly.com/uploads/1/3/1/4/131438167/8939828.pdfIn PDF document text
    • https://fedalovojuxunod.weebly.com/uploads/1/3/0/7/130775560/febofazer.pdfIn PDF document text
    • http://9gusevshop.website/vilter_compressor_manualg9kxc.pdfIn PDF document text
    • https://vodazifuja.weebly.com/uploads/1/3/4/2/134265633/tinugelexi.pdfIn PDF document text
    • https://cdn.sqhk.co/vagofedewat/d4jdfn5/daily_routine_list_app.pdfIn PDF document text
    • http://stassikorskyi.com/aircraft_cruise_performance_chartsg1dyz.pdfIn PDF document text
    • https://cdn.sqhk.co/fatepotax/JuGMidX/toro_weed_eater_repair_near_me.pdfIn PDF document text
    • https://sufifova.weebly.com/uploads/1/3/4/7/134736026/3425338.pdfIn PDF document text
    • http://it50save.info/goat_simulator_waste_of_space_trophy_guideh32a5.pdfIn PDF document text
    • https://jufavufopu.weebly.com/uploads/1/3/4/3/134340263/55765ef6d.pdfIn PDF document text
    • https://cdn.sqhk.co/lazuxorus/bjaNdDF/72676413414.pdfIn PDF document text
    • http://bcpzonasegurape2-viabcp.com/broken_sword_2_smoking_mirror_remastered_walkthroughz6k4n.pdfIn PDF document text
    • http://socialwave.me/xejopabubetuvufojifut6l9o1.pdfIn PDF document text
    • https://sowefitubi.weebly.com/uploads/1/3/1/4/131406610/d5677fd016e.pdfIn PDF document text
    • https://cdn.sqhk.co/vowibesep/DWhghaH/benubil.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_off0000dacc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDACC 5336 bytes
SHA-256: 4bc4fbba76a2d1b6e795c9d5ab9b4eb01f68937a62a96a871d50d118e51a5910
font_01_sfnt_off0000eccb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECCB 10508 bytes
SHA-256: 7e62943a32a1047b3477ed0dc6e6246b4282839342bbe3e2ece94c8dd41638a6