Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc969e8a80ff335a…

MALICIOUS

PDF

101.0 KB Created: 2021-03-19 22:56:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 5701c61cf94bcbdf5322b2942c9cea4f SHA-1: cefff59bf5aa81d5a7aaf2af8bca0767b248dd7f SHA-256: fc969e8a80ff335a39d9dc0dc0c86252ae920a69311f23cadcc1dc6c57703315
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document contains numerous embedded URLs, many of which point to disposable hosting and are part of a link farm, suggesting a phishing or redirection scheme. The primary URL, 'https://maypoin.ru/strik?utm_term=element+tv+elefw195+manual', is likely used to deliver a secondary payload or redirect the user to a malicious site.

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://maypoin.ru/strik?utm_term=element+tv+elefw195+manual PDF link annotation
    • https://sukuwakutas.weebly.com/uploads/1/3/4/6/134603616/8304febbab95.pdfIn PDF document text
    • http://rukozhop-guide.com/cimici_come_si_formanosfyy2.pdfIn PDF document text
    • http://latencfsrt.space/jet_s_pizza_cauliflower_crust_nutritional_information47mr4.pdfIn PDF document text
    • https://fagadiroduk.weebly.com/uploads/1/3/0/9/130969360/4170291.pdfIn PDF document text
    • http://pestore.pro/is_house_rent_exempted_from_income_taxqwqoo.pdfIn PDF document text
    • http://wwbook.org/asus_m5a78l-m_lx_plus_drivers_windows_10kb00w.pdfIn PDF document text
    • https://cdn.sqhk.co/sobutexe/hdih0CI/cute_cartoon_wallpaper_hd_for_iphone.pdfIn PDF document text
    • http://iranomics.com/xexijukufuwosaferuvavazmacra.pdfIn PDF document text
    • https://cdn.sqhk.co/zoxemetakol/jdmhhjj/filaxizijijigojat.pdfIn PDF document text
    • http://maturibcgj.space/critical_ops_hack_freesvk0t.pdfIn PDF document text
    • https://cdn.sqhk.co/nuzitomizaj/fuge8IQ/bowuxejedetobinoxuduvo.pdfIn PDF document text
    • http://thepropheticapp.com/what_is_the_fastest_defensive_driving_courseyenil.pdfIn PDF document text
    • https://gapojusegora.weebly.com/uploads/1/3/1/4/131408170/8454d.pdfIn PDF document text
    • https://cdn.sqhk.co/pasededi/gg7YghZ/66157286153.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://pagupugizof.epizy.com/college_board_test_9_answers.pdfIn PDF document text
    • http://fezipowivi.rf.gd/77113121405.pdfIn PDF document text
    • http://zaruxokogidut.epizy.com/add_google_calendar_to_outlook_app_android.pdfIn PDF document text
    • https://s3.amazonaws.com/rirusozo/48142245634.pdfIn PDF document text
    • https://s3.amazonaws.com/jedobufudajewu/hero_editor_diablo_2_lord_of_destruction_v.1.13.pdfIn PDF document text
    • https://s3.amazonaws.com/poguvelefa/epson_sc_p800_ink_cartridges.pdfIn PDF document text
    • http://kibejulega.epizy.com/90524886740.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00013e84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13E84 4804 bytes
SHA-256: 8c507338756cff593b1a267efac095ac3b4e4b94feeaf894e4baf069ebcd2770
font_01_sfnt_off00014ee8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14EE8 12272 bytes
SHA-256: aafabc246f843405f9a5ea02d77de33d2df011f48dc3a8a45745f59eb424e37b
font_02_sfnt_off000178bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x178BF 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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