Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe9f3a5859636168…

MALICIOUS

PDF

77.3 KB Created: 2021-03-31 02:51:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0948970a96931465a8547be9ff610aa0 SHA-1: db885cfdaae3adbad037148587cb55232d33667d SHA-256: fe9f3a5859636168533eaeb1b679543b80ade120128c034973974ee526d6954e
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. The document body, though heavily obfuscated, suggests a lure related to an 'award' or 'learning' topic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://druttle.ru/award?keyword=affective+learning+pdf
    • http://my-favshope.online/adobe_photoshop_cs5_free_full_version1dx6p.pdf
    • http://penexej.mywebcommunity.org/difference_between_ethnology_and_ethnography.pdf
    • http://sberpodarok2020.online/filadivavadowawipipafoniwnb09w.pdf
    • http://keligekixebar.22web.org/best_movies_site_telugu.pdf
    • http://zabemaladameg.medianewsonline.com/electrical_engineering_definition_for_kid.pdf
    • http://bamefidev.mygamesonline.org/behavioral_theory_in_counseling.pdf
    • http://sowopezamiw.medianewsonline.com/que_son_signos_de_puntuacion_y_entonacion.pdf
    • http://jokojujut.medianewsonline.com/agresti_and_finlay_4th_edition.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/7c2e548e-687a-4d9d-a92f-546d478c01fe/what_color_is_the_tags_for_2020_in_michigan.pdf
    • http://rojaxenutu.rf.gd/venifarubajegiz.pdf
    • https://s3.amazonaws.com/gezejoputiwinu/spectrum_tv_live_guide.pdf
    • http://sedilar.rf.gd/muravidalivikejorigibomo.pdf
    • https://uploads.strikinglycdn.com/files/b10bad97-5279-4199-9073-48e52fb5c136/how_do_you_do_chicago_style_on_microsoft_word.pdf
    • https://s3.amazonaws.com/vinejivunitego/how_to_write_covalent_bonds.pdf
    • https://uploads.strikinglycdn.com/files/f49a1028-125a-4934-99be-45a91ee520cb/fubatuxodivoxojasidop.pdf
    • https://s3.amazonaws.com/babetafaperaxov/php_convert_string_to_json_format.pdf
    • http://jupagezasolax.rf.gd/jerry_kuhnhausen_1911_shop_manual.pdf
    • http://kolupus.epizy.com/vivapuxodanu.pdf
    • https://s3.amazonaws.com/wikurixobelu/rinizefesib.pdf
    • https://uploads.strikinglycdn.com/files/da506a3a-7d90-475a-bf88-57abbc947350/jose_emilio_pacheco_el_principio_del_placer_analisis.pdf
    • https://uploads.strikinglycdn.com/files/87362e84-c4a2-453c-a08b-be21aaf22a00/37225982924.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ef6d.bin
e7b43856ed8a50f31d38b3e06c99815716160c534eb7cc1ea92ea7185f8bf04c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEF6D 5192 bytes
font_01_sfnt_off00010134.bin
9825e046bb1f192a2cb35a84a9eff5be66e331baf77351dc41393414b467301c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10134 11012 bytes

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