Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe884716b441f561…

MALICIOUS

PDF

78.2 KB Created: 2021-03-04 23:53:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: dc9ba2f7d9d2a08dd30c3fb6fc388466 SHA-1: 120d8f660c54b03da6dfcc4e88241792d7fdcd4f SHA-256: fe884716b441f56115eeafd8992221f1aee98245018f790312f94b58b6879e8a
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to disposable domains and are presented as search results for popular games and software. This pattern is indicative of a phishing or malware distribution attempt, aiming to trick users into visiting malicious sites. The ClamAV detection and ML classifier further support the malicious nature of this document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

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://xajibur.ru/wix?keyword=dragon+ball+dokkan+battle+hack+apk+dragon+stones+2020 PDF link annotation
    • http://gikiwasixe.66ghz.com/tin_tin_cartoon.pdfIn PDF document text
    • http://tifubuza.22web.org/51956382979.pdfIn PDF document text
    • https://gijagexerifaru.weebly.com/uploads/1/3/5/3/135322880/renosutipot-javokepaw-rozat-gofekunodaveja.pdfIn PDF document text
    • http://xoxuvajes.mywebcommunity.org/mink_russian_eyelashes.pdfIn PDF document text
    • https://mejekuveko.weebly.com/uploads/1/3/5/3/135392268/rorowudepegorux_posukiz_verusiwapuwu_vusaj.pdfIn PDF document text
    • http://tomerezadix.iblogger.org/how_to_do_a_tarot_card_reading_for_beginners.pdfIn PDF document text
    • https://dimawirosaj.weebly.com/uploads/1/3/3/9/133997296/wamagorukalibu-pajugazu.pdfIn PDF document text
    • http://tizakeguwowil.22web.org/philips_norelco_1150x_razor.pdfIn PDF document text
    • http://xemizawufogutuf.scienceontheweb.net/biwibijajugiwisi.pdfIn PDF document text
    • http://peluxuba.sportsontheweb.net/what_happened_to_gabe_at_the_end_of_pet_sematary_2019.pdfIn PDF document text
    • https://nuvosukive.weebly.com/uploads/1/3/4/7/134718285/4329502.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zubatanolenobu.rf.gd/was_the_witcher_a_book_before_a_game.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf851f0a-20e2-4c8f-90cb-937b5dbab430/lg_g_pad_7.0_lte_unlock_code_free.pdfIn PDF document text
    • http://vusukunuvedigup.epizy.com/cartooning_tutorial.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/39752fa5-4d99-400c-8f05-c090cb705183/honeywell_germ_free_cool_mist_humidifier_home_depot.pdfIn PDF document text
    • http://jabenesejamuji.rf.gd/7833740128.pdfIn PDF document text
    • http://zukixewagiv.epizy.com/kalelulejuwanoposiwujuki.pdfIn PDF document text
    • http://wadedizori.epizy.com/fechas_importantes_de_las_reformas_borbonicas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9d692c53-2584-4854-a6c6-46949fd5a1c6/65888495798.pdfIn PDF document text
    • http://pozidijapepore.atwebpages.com/dd_5e_magic_weapons_for_rogues.pdfIn PDF document text
    • http://fidotetunuxezi.epizy.com/wewowifiraxivoke.pdfIn PDF document text
    • http://dedafozun.rf.gd/resumen_del_libro_de_los_secretos_de_la_mente_millonaria.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f16999be-c790-45ed-89f5-e9ad08659b94/92389832693.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/029869a3-66ed-4deb-a342-8ed79687a94c/peligiwujegizelexuti.pdfIn PDF document text
    • http://putazosaw.epizy.com/project_management_skills_quizlet.pdfIn PDF document text
    • http://latobusat.rf.gd/59084392153.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_off0000f18f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF18F 5812 bytes
SHA-256: d0dafe4c9f45c67a6f305518a1d410e794748c497107330befb4f05328ec9731
font_01_sfnt_off00010554.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10554 11432 bytes
SHA-256: 716b3e7bc72cc333b27400416018e5713aeb32615310fd271b1cc993e51ebad0