Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfb8189070a20180…

MALICIOUS

PDF

87.0 KB Created: 2021-03-15 03:32:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bd288ad028bdd090a8f3b60e08c92e22 SHA-1: 4946393ec4ad1dec5208905cab5e85670348cfde SHA-256: bfb8189070a20180348d4948d7bce37432776bb060b72ffd30075b26a386baad
76 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to 'zajinet.ru', which is flagged as suspicious. The ML classifier also strongly indicates maliciousness. While no scripts were extracted, the presence of the external URI suggests an attempt to redirect the user to a potentially malicious site, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

Heuristics 4

  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://zajinet.ru/wix?keyword=dbz+devolution+unblocked+66 PDF link annotation
    • http://vukuvujuziku.iblogger.org/polk_surroundbar_2000_remote.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485576/normal_60244aaa945e5.pdfIn PDF document text
    • http://daxofili.22web.org/cartoon_movie_maker_software_free_download_for_windows_7.pdfIn PDF document text
    • http://moferewoxotil.22web.org/railway_form_check_status_2018.pdfIn PDF document text
    • https://mibofadap.weebly.com/uploads/1/3/1/6/131637701/afc9e58.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420907/normal_5fd6545491cce.pdfIn PDF document text
    • http://zobevewobuka.22web.org/michel_foucault_what_is_an_author_modernity_and_its_discontents.pdfIn PDF document text
    • https://liwuvena.weebly.com/uploads/1/3/1/3/131398027/afe832.pdfIn PDF document text
    • https://joposiga.weebly.com/uploads/1/3/5/3/135399072/gineju-tokel-gizojepimupi-bukifulidinuj.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jobavo/john_deere_gator_tx_parts_list.pdfIn PDF document text
    • https://s3.amazonaws.com/muvemasoxaji/81040793173.pdfIn PDF document text
    • http://zugujegezamuto.epizy.com/octopath_traveler_concoct_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/zuvovoxigumuz/why_is_my_acer_laptop_saying_no_bootable_device.pdfIn PDF document text
    • https://61090d85-22e6-4724-b969-52a17785150c.filesusr.com/ugd/952c2e_487fe2eba3544f11aa2a66480008302c.pdf?index=trueIn PDF document text
    • http://bimivopi.epizy.com/gettysburg_address_and_emancipation_proclamation_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/batoragubukepo/which_washing_machines_are_being_recalled_uk.pdfIn PDF document text
    • https://6440a9f6-5e82-4153-977b-4ffe9374ec4a.filesusr.com/ugd/7182f3_a8760d57001742fcbdd55753dbdaeb02.pdf?index=trueIn PDF document text
    • http://konivad.epizy.com/50111451729.pdfIn PDF document text
    • http://konazosite.epizy.com/pemasizawikezibebepuli.pdfIn PDF document text
    • http://sevezogare.rf.gd/57300782975.pdfIn PDF document text
    • https://506dbbd1-d4b3-44b1-a4c9-6b5d0cab6a23.filesusr.com/ugd/c75f60_a81b9ef341b34f0db1d0878479f56e61.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/megelugik/fopidewamubelugowowur.pdfIn PDF document text
    • https://729282ec-1290-4cbc-9302-cf8a24acd4c7.filesusr.com/ugd/42c189_599b598b7c86457b84123fa0f30a066f.pdf?index=trueIn PDF document text
    • http://befakugidutoj.rf.gd/kiwasofumamafavufek.pdfIn PDF document text
    • https://dba0ca6b-c979-46b3-87c9-041648dee063.filesusr.com/ugd/6f58fb_695042e9f4d24b0c8ec53df92364b7b3.pdf?index=trueIn 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_off0001074c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1074C 4668 bytes
SHA-256: e3d0460c78b5e742111c0c680c3486ec33e0a6951b8bef526e6c7b255a6f4417
font_01_sfnt_off00011789.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11789 4916 bytes
SHA-256: 2652fc15a4369ea93aa5bc909e164b00046c81a44d52db3057570ffda3cd86b0
font_02_sfnt_off00012870.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12870 10952 bytes
SHA-256: d9249e5b10339bd59c3682287d5bb2a8320e75462307a6ddef8179886377565d