Malicious PDF — malware analysis report

Static analysis result for SHA-256 0292cf62a6b1e4a2…

MALICIOUS

PDF

77.3 KB Created: 2021-03-14 11:15:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 606becd237260ea1f04502e9590bab36 SHA-1: 9a68c3ce63a6b25618d837d212158b7a75c5dcd3 SHA-256: 0292cf62a6b1e4a26d94a1240eaa2d13a561f8e5115b65ef7efff4f9c1f91f2d
126 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs, many pointing to disposable hosting services, suggesting a link farm or phishing operation. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and the ClamAV detection 'Pdf.Phishing.Trojan-d2528dad23a95d95-10044376-0' strongly indicate malicious intent, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the presence of many external links and the ML classification point towards a malicious document designed to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://kuzutuzo.ru/wix?keyword=doogee+x5+pro+manual PDF link annotation
    • http://copyrightmediahelp.com/family_violence_in_new_zealandejfve.pdfIn PDF document text
    • https://pidedofafotego.weebly.com/uploads/1/3/1/4/131438241/vogogawu-tiwafisukezex-sasibebatebadi.pdfIn PDF document text
    • https://fifesijewawo.weebly.com/uploads/1/3/1/4/131412558/kijifisonemuvir.pdfIn PDF document text
    • https://vogaxuruxav.weebly.com/uploads/1/3/4/3/134352923/gefef.pdfIn PDF document text
    • http://varezadidul.22web.org/tewumigomigujelavu.pdfIn PDF document text
    • http://oneitstore.pro/81698807323ebbua.pdfIn PDF document text
    • https://taretowixulu.weebly.com/uploads/1/3/1/0/131070971/sipazekifutaxox.pdfIn PDF document text
    • https://sivubatololux.weebly.com/uploads/1/3/4/8/134850937/vemifolumudubek-navux.pdfIn PDF document text
    • https://wajonurogizi.weebly.com/uploads/1/3/0/7/130738566/nagipedi.pdfIn PDF document text
    • https://nowimadowa.weebly.com/uploads/1/3/4/7/134705132/9145103.pdfIn PDF document text
    • https://pobunusegem.weebly.com/uploads/1/3/4/4/134460984/kenofoner-bosul-sepovowipel-tegumope.pdfIn PDF document text
    • https://musevurimimurom.weebly.com/uploads/1/3/4/7/134711136/xoxefefosiloxada.pdfIn PDF document text
    • http://jamotovoxut.mywebcommunity.org/how_to_trade_stock_youtube.pdfIn PDF document text
    • http://videohost.space/digitech_rp7_valve_patch_library6pnkq.pdfIn PDF document text
    • http://ctuxuu.com/calculo_de_indirectos_excelt49xa.pdfIn PDF document text
    • http://copytoshka.ru/brother_p-touch_1750_user_manualk3psi.pdfIn PDF document text
    • http://gopidap.scienceontheweb.net/python_programming_notes_download.pdfIn PDF document text
    • http://bisibometixo.mywebcommunity.org/the_last_of_us_2_trailer_song_ellie.pdfIn PDF document text
    • http://dalidusiz.mywebcommunity.org/a_court_of_mist_and_fury_age_rating.pdfIn PDF document text
    • http://fafasun.iblogger.org/21828988465.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zilowovuv.atwebpages.com/what_is_a_full_service_grocery_store.pdfIn PDF document text
    • http://segalemu.epizy.com/50636406579.pdfIn PDF document text
    • http://pagupim.epizy.com/inhibidores_de_aldosa_reductasa.pdfIn PDF document text
    • http://xewewiwuxadul.rf.gd/lejirulipikosek.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_off0000eed3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEED3 5152 bytes
SHA-256: 704ef599e4abbe86a4683c0d6e435c0c1eff21b01d5d931da1cb7c6051378fbc
font_01_sfnt_off00010053.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10053 11684 bytes
SHA-256: b755a3162b363d35c2ec4f39e9024e2332b7dac69865321e9904e11ca6bbb0d5

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