Malicious PDF — malware analysis report

Static analysis result for SHA-256 657cb64c4bc8325e…

MALICIOUS

PDF

74.9 KB Created: 2021-03-06 09:52:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 07ddd1c2845ef3bf644d5b787900ba42 SHA-1: a4295701ddd56718111a6a068ee49d6d2136a7e0 SHA-256: 657cb64c4bc8325e41bb7d5cb58d59c472dc9c3ebe5bcebd5139c891dedb1ae7
64 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs, many of which point to disposable hosting and are likely part of a link farm designed to deceive users. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of using such sites for malicious purposes. The primary malicious URL identified is 'https://lozipotod.ru/award?keyword=what+language+does+septuagint+come+from', which appears to be a lure disguised as a search result.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5028

Heuristics 3

  • 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
  • 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://lozipotod.ru/award?keyword=what+language+does+septuagint+come+from PDF link annotation
    • http://vaxenovutejuzid.sportsontheweb.net/acurite_wireless_thermometer_model_00754.pdfIn PDF document text
    • http://tijudozi.scienceontheweb.net/eotech_integrated_forend_light_for_mossberg_500_590.pdfIn PDF document text
    • http://nawitebexu.medianewsonline.com/casio_exilim_camera.pdfIn PDF document text
    • http://kino-vezde.ru/nom_scientifique_plante_carnivorebbzec.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489599/normal_5fc7eadc9b648.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417818/normal_600c3787a0573.pdfIn PDF document text
    • https://cdn.sqhk.co/vonezositixi/hghdJtV/run_that_back_turbo_tag_download.pdfIn PDF document text
    • http://memisada.mygamesonline.org/do_bose_quietcomfort_35_have_a_microphone.pdfIn PDF document text
    • https://cdn.sqhk.co/xuxiropuwomo/1Ciejcb/56391449569.pdfIn PDF document text
    • https://cdn.sqhk.co/vekotevudoze/hhelkMA/next_business_tycoon_3_tips.pdfIn PDF document text
    • https://cdn.sqhk.co/tefegegesuxe/fgfotif/glory_of_generals_pacific_war_tips_and_tricks.pdfIn PDF document text
    • http://netewe9.xyz/867328748tj2ee.pdfIn PDF document text
    • https://cdn.sqhk.co/zivudasexoni/igjhiep/55628509112.pdfIn PDF document text
    • https://cdn.sqhk.co/xuxiropuwomo/YEFghjb/english_song_lyrics_download.pdfIn PDF document text
    • https://cdn.sqhk.co/mibupufek/hfW9y5K/wamipesenabaf.pdfIn PDF document text
    • https://cdn.sqhk.co/wevavagu/gijQHhh/umc_covid_testing_site.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502833/normal_6038824ae12fb.pdfIn PDF document text
    • http://gnoogle.site/89270686465uq655.pdfIn PDF document text
    • http://servisvds.ru/download_the_last_airbender_2_full_movieqz4j5.pdfIn PDF document text
    • https://cdn.sqhk.co/suxujaba/cAhhoib/17293942209.pdfIn PDF document text
    • https://cdn.sqhk.co/vetelojid/ghighf1/17059172599.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450351/normal_6019ce77007db.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460688/normal_604063992f0d9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/98a3b3e9-35e9-4ac5-9fb4-a913168e4c30/how_to_calculate_simple_and_compound_interest.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ddb26097-27db-4ddf-a627-4268f9a8d22e/35513813438.pdfIn PDF document text
    • http://gomugugagaf.onlinewebshop.net/how_to_install_janome_free_motion_quilting_foot.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6562701c-03c5-4a2d-8fd4-5160de70269f/57117584035.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/01c35cd8-16fe-4294-8567-59015def7d07/c_for_game_programmers_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/43cb5faa-afec-47f8-966d-a4fd7b73b408/manual_de_pedalera_digitech_rp80.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010579.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10579 5580 bytes
SHA-256: 6d898872acc8c866d0f438474df5da41edd880d362554b2c32e5a90ac088d61b

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