Malicious PDF — malware analysis report

Static analysis result for SHA-256 46f2b60f689b5655…

MALICIOUS

PDF

79.9 KB Created: 2021-03-02 18:18:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0d92614f298af0612150d22eb5a90607 SHA-1: 90d5b92ee0cf9ddf9ccb528a733ece549e4c8c8c SHA-256: 46f2b60f689b565594b89cc5765a44d011ce6f940afea4c3fcce63dae6dad221
126 Risk Score

Malware Insights

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

The PDF contains numerous external URIs pointing to disposable hosting and link farms, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://jumiwimov.ru/123?utm_term=elkay+water+fountains+owners+manuals
    • https://firudofomupavu.weebly.com/uploads/1/3/1/3/131384713/zulesofomozubi_lekuwawilavo.pdf
    • http://sizuxofutitarax.mypressonline.com/maschine_mikro_mk2_setup_guide.pdf
    • http://pogawubujogeje.mypressonline.com/what_size_tires_does_a_2012_hyundai_sonata_have.pdf
    • https://rizigavitud.weebly.com/uploads/1/3/4/5/134581125/591565d4d26950.pdf
    • https://lusenivusimutom.weebly.com/uploads/1/3/4/8/134887898/b20837cb7.pdf
    • https://cdn.sqhk.co/bitaxukezor/5UBKlLi/vox_cinema_mall_of_emirates_parking.pdf
    • https://cdn.sqhk.co/xolafunodo/mFPgimE/dowovezuzepapojari.pdf
    • http://fajujefa.getenjoyment.net/diary_of_a_wimpy_kid_show_cast.pdf
    • http://vofufime.mypressonline.com/54134223590.pdf
    • https://vojutodebol.weebly.com/uploads/1/3/4/0/134096580/fozemubijoj.pdf
    • http://kesisofawa.mygamesonline.org/john_butler_trio_better_than_lyrics_deutsch.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/vuraradaso/roland_barthes_mythologies_english.pdf
    • https://s3.amazonaws.com/gogoxowiniza/kuzaja.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d4a1.bin
29d5d46d47dc3c56337f3f22e29a871c62c467455be6a6f068a69e626c3e4cd2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD4A1 5128 bytes
font_01_sfnt_off0000e615.bin
8e5386d0c63303969a7fd8a3c57cd3a0b64482b7a5fce91c12d5ff4cc20ef16e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE615 3612 bytes
font_02_sfnt_off0000f485.bin
95954cd9e1a7bf5a812fbb9b58c6e8916d1bdca1ae749f8adc4eab596263821a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF485 11568 bytes
font_03_sfnt_off00011c16.bin
8e53d70cffe9e7d9dcadc7c0345aeb4d99329048333cb0a024d2e7265c387a80		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11C16 16404 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.