Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6fe65e696e000ed…

MALICIOUS

PDF

73.9 KB Created: 2021-03-20 15:34:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 9c864bd7f0bc381a6b092f6e6df35c7f SHA-1: a37c434c8ac9098d22d74c550ddae165a3b2a84d SHA-256: d6fe65e696e000ed287f1129b6703c32e62d207ce3ba3b6e2247b0779d39d6cf
126 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, with at least one, 'https://soxebez.ru/award?keyword=rural+banditry+pdf', being flagged as an external URI and potentially part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to 'rural banditry'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://soxebez.ru/award?keyword=rural+banditry+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4385435/normal_6038ef6e3f8b7.pdfIn PDF document text
    • http://instacopyrightcenter.com/nixigatuzijegalakaxajigd2tb.pdfIn PDF document text
    • http://hookup756.fun/75499702209fkm.pdfIn PDF document text
    • http://rent-nout.site/54480330961eyx09.pdfIn PDF document text
    • http://natlegend.space/brs_physiology_8th_edition_free_downloadg77dy.pdfIn PDF document text
    • http://reduslim-italiaufficiale.site/94244944439ydamw.pdfIn PDF document text
    • http://ilmahli.com/menu_pal_pal_yaad_teri_tadpave_se_tera_roop_jigar_mp3_song_downloadbwri7.pdfIn PDF document text
    • http://batmbatm.ru/purpose_driven_life_free_download4lftk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378608/normal_60044c9787e4b.pdfIn PDF document text
    • http://stavki.link/tvd_character_quiz_sporclei5n74.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457561/normal_60135d27ed234.pdfIn PDF document text
    • http://ing-cliente.com/18658390470goqpy.pdfIn PDF document text
    • http://shopsupergood.site/hillsborough_county_high_school_hoursi90sv.pdfIn PDF document text
    • http://thechambre.xyz/what_is_the_best_spyder_paintball_gun5xp9l.pdfIn PDF document text
    • http://liolika-rsya.ru/niwusezukodukemfpgj.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://c3373aeb-ed74-4f2d-b631-fa679e0a3f6f.filesusr.com/ugd/cbe7f7_8664357fe16d4fb18ef96a6bb23472cf.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/2db1818c-8538-409c-9aa1-3b6863b1a511/27337807008.pdfIn PDF document text
    • https://9005a25f-7293-4a73-bb0f-bc58e8c16807.filesusr.com/ugd/e3834b_aaf99bd7b189465ba38eeb97ee35427a.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/934b76e5-d8cd-4037-9e3a-b67452f9c20b/wuvikafemojunipoxedibus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ae0e0e7-fccc-45b1-98b5-f7b9ca5f886d/sinkmaster_750_removal.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/98635eef-5183-447d-9692-546bbd26eb26/ncert_political_science_class_10_download_in_hindi.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_off0000e5e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5E8 5108 bytes
SHA-256: dc737b718206c095368693559296fd4335df561a59974c320a210bb38d9e0840
font_01_sfnt_off0000f75e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF75E 10316 bytes
SHA-256: dc47a08142666b3820d56be831a9e0d38dd1469ec886a8e6c2e17707aa514ee3

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