Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 be39e8632a3b7e74…

MALICIOUS

PDF / .VIR

335.1 KB Created: 2023-11-13 02:57:48 Authoring application: OpenOffice.org First seen: 2024-04-14
MD5: b4e2e08cc2dae7ee9da58e03e7b7c148 SHA-1: b6b28391e17d45f7d918bf784083dc720a95da51 SHA-256: be39e8632a3b7e740765ba34242a5fdf84681ae32aadfe2f6383665e67259dc0
66 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document presents itself as a technical PDF, likely a lure to trick users into downloading malicious content. The ML classifier strongly flagged this PDF as malicious, and it contains numerous embedded URLs pointing to external resources. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect the user to a malicious site or download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9371

Heuristics 4

  • PDF carries website-builder CDN document link farm medium PDF_CDN_PDF_LINK_FARM
    PDF contains many clickable PDF links parked on website-builder CDNs or simple download gateways together with visible ebook, manual, or download lure text. This matches generated SEO document carriers used to route users through untrusted link/download chains; the PDF itself is an inert link carrier.
  • 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://adservice.google.co.uz/ddm/clk/408405163;208572896;n;;%3F//img1.wsimg.com/blobby/go/0473c096-b2e6-4936-a46a-fb82614eda7f/downloads/38129884401.pdf In PDF document text
    • https://adservice.google.co.ls/ddm/clk/466651624;272226156;i;;%3F//img1.wsimg.com/blobby/go/013bb962-1a83-4d95-a542-1c819cdf656e/downloads/basicnetwork.performrequest_unexpected_response_code_405_in_.pdfIn PDF document text
    • https://adservice.google.com.sv/ddm/clk/445204615;249060672;c;;%3F//img1.wsimg.com/blobby/go/81f80d05-2d01-4972-9d45-52c481a0238f/downloads/67506615936.pdfIn PDF document text
    • https://adservice.google.ad/ddm/clk/424929466;226923624;r;;%3F//img1.wsimg.com/blobby/go/24ec5924-f649-432d-bc84-142081ee16af/downloads/senolubesemumezowetoz.pdfPDF link annotation
    • https://adservice.google.se/ddm/clk/445204615;249060672;c;;%3F//img1.wsimg.com/blobby/go/36239050-b4d8-4c43-9a03-650a3b7c7c78/downloads/13455710756.pdfIn PDF document text
    • https://adservice.google.sk/ddm/clk/295204063;122181591;w;;%3F//img1.wsimg.com/blobby/go/a78e10ac-5e38-48a2-9273-8cdb5f9a6b00/downloads/3432530992.pdfIn PDF document text
    • https://adservice.google.iq/ddm/clk/448794861;252804937;a;;%3F//img1.wsimg.com/blobby/go/1b7f80b5-fb34-497d-8072-447feb44da09/downloads/24322887318.pdfIn PDF document text
    • https://adservice.google.no/ddm/clk/445204615;249060672;c;;%3F//img1.wsimg.com/blobby/go/853a5825-aeb1-483d-81d1-892423e55c52/downloads/unbranded_netflix_documentary_viewing_guide.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/efeb5abf-cec7-4076-8fe5-8c49872f54dc/downloads/ridedisejesiv.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/81f80d05-2d01-4972-9d45-52c481a0238f/downloads/free_wedding_planner_checklist.pdfIn PDF document text
    • https://adservice.google.ci/ddm/clk/300948314;127869103;e;;%3F//img1.wsimg.com/blobby/go/9f52ff38-f943-4347-ac4f-aa22ea4c4f07/downloads/tuwovuzikoderezeta.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/1b7f80b5-fb34-497d-8072-447feb44da09/downloads/que_es_la_angiografia.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/24ec5924-f649-432d-bc84-142081ee16af/downloads/matodilojufesan.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/24ec5924-f649-432d-bc84-142081ee16af/downloads/sazavajumoxurogenej.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/7d8700e4-fc8e-4a24-ac74-ced6f65f7ab7/downloads/hinmans_atlas_of_pediatric_urologic_surgery.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/c0435ece-a888-43ab-837b-9a2497201d0c/downloads/zunivujurugodarumigejuz.pdfIn PDF document text
    • https://adservice.google.ie/ddm/clk/445204615;249060672;c;;%3F//img1.wsimg.com/blobby/go/d5073747-7e06-4c86-9196-11fa0833a01e/downloads/32618357147.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/9b451438-a6a5-40c9-9638-af51412c364b/downloads/73133872140.pdfIn PDF document text
    • https://adservice.google.hn/ddm/clk/408533097;208818505;l;;%3F//img1.wsimg.com/blobby/go/e692f54c-de5e-4520-85a8-c487fc21f607/downloads/56825385989.pdfIn PDF document text
    • https://adservice.google.kz/ddm/clk/295204063;122181591;w;;%3F//img1.wsimg.com/blobby/go/a2386608-f00a-4359-826c-f41c71b12f04/downloads/67371520121.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/9b451438-a6a5-40c9-9638-af51412c364b/downloads/47604927812.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/a2386608-f00a-4359-826c-f41c71b12f04/downloads/punch_club_speedrun_guide.pdfIn PDF document text
    • https://adservice.google.dm/ddm/clk/408405163;208572896;n;;%3F//img1.wsimg.com/blobby/go/c0435ece-a888-43ab-837b-9a2497201d0c/downloads/pugilefevavod.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/9b451438-a6a5-40c9-9638-af51412c364b/downloads/the_tipping_point_book_download.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/f9393688-1e14-4b3f-aecf-86403504c0a8/downloads/active_directory_tutorial.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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0005027d.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005027d.bin)

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005027d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5027D 16724 bytes
SHA-256: a48552396ecd7d3cfa3a50e4411ea07cb65cce311359c1eff8c19af14812966b