Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5825975e86c6ff0…

MALICIOUS

PDF

39.6 KB Created: 2020-11-09 07:02:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 21414b1ffc11b085cefdd2093e529b73 SHA-1: a38c9389f966489c14c494354adf04482b0cbde0 SHA-256: e5825975e86c6ff09ffd104735048c6da817a10f65a14634879fe18c539e36ae
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://traffset.ru/aws?keyword=should+i+share+my+ice+cream+book+free PDF link annotation
    • https://galafiki.weebly.com/uploads/1/3/4/3/134347291/1498430.pdfIn PDF document text
    • https://kupugaxome.weebly.com/uploads/1/3/0/9/130969415/09809c.pdfIn PDF document text
    • https://julasunanuk.weebly.com/uploads/1/3/4/3/134308365/pipavenibikuroxizuz.pdfIn PDF document text
    • https://bujuwevirovumeg.weebly.com/uploads/1/3/4/2/134235487/golafizogop-kopoziwej.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404514/normal_5f9152294dd82.pdfIn PDF document text
    • https://mokogexikimowo.weebly.com/uploads/1/3/4/3/134321985/2549578.pdfIn PDF document text
    • https://dirigesibujov.weebly.com/uploads/1/3/0/9/130969991/3629950.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/0e6160b8-d18f-434c-aef4-86c494bc45e4/atualizao_gps_multilaser_tracker_tv_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5970715-85d9-4a0c-a770-89380666d1bb/when_i_was_puerto_rican_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/benkelman_beam_deflection_test.pdfIn PDF document text
    • https://s3.amazonaws.com/wulotugadag/diwed.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a9673230-8223-43a5-a3f7-1209dd8c7351/crash_fever_mod_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/jimafijideteguwabaz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1e7c9938-ffc6-408e-a152-8e7f87a2b5ab/monster_legends_generator_no_human_verification.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dedfb0bb-cd00-438b-a14b-1b3326333d9a/lean_body_hacks_scam.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_off00005a35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A35 5672 bytes
SHA-256: 423fbbe000b170b1773871233a2eb645c85a1801381dc767ac520c97ce237e71
font_01_sfnt_off00006d5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D5C 10804 bytes
SHA-256: 6ce4229cd9a1cdce2a1c4e4ce05994bf9cd3f8f6d653676b7355514c05c8762f