Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a47597c333a5932…

MALICIOUS

PDF

80.5 KB Created: 2021-03-17 15:16:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dacf76d1c1feb91cb894cb475a874990 SHA-1: 3d8453a5a8e324e4478e4a2d017592e7d8ec6d7b SHA-256: 0a47597c333a59320d23dd964b82285c7348af214a144f2732d71fc200544cef
96 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, with the primary one being https://pelibifir.ru/wix?keyword=themes+of+contemporary+art+visual+art+after+1980+pdf, which is likely a lure for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. No scripts were extracted, but the presence of numerous external links suggests an attempt to redirect the user to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://pelibifir.ru/wix?keyword=themes+of+contemporary+art+visual+art+after+1980+pdf
    • https://cdn.sqhk.co/sifajoxojif/giePbpZ/75607241423.pdf
    • https://cdn.sqhk.co/fegokirar/ngehaMC/free_printable_cuss_word_coloring_pages_for_adults.pdf
    • https://cdn.sqhk.co/loxowopiv/ic6UumX/gezebakukezagumukoposo.pdf
    • https://cdn.sqhk.co/fexejikexew/dLhajhM/subway_vinaigrette_taste.pdf
    • http://naturka.space/jipipo7x1jh.pdf
    • https://cdn.sqhk.co/torazanopuni/hgm8pjj/6074714673.pdf
    • https://cdn.sqhk.co/juxerawabuf/Dh36xib/xogunaxesevigituva.pdf
    • https://cdn.sqhk.co/tifobebe/ghhKiep/one_shot_screen_recorder_premium_apk.pdf
    • https://cdn.sqhk.co/mufipofunup/esb8Fid/word_of_the_day_bible_app.pdf
    • http://gimerixifaxet.iblogger.org/balance_general_en_forma_de_reporte_excel.pdf
    • http://repair-foto.ru/pizza_clicker_game_hackedlnmi0.pdf
    • https://cdn.sqhk.co/wigatozaduw/cighehf/lego_movie_maker_app_iphone.pdf
    • http://iwhite.space/dungeons_and_dragons_movie_free_onlinestvxl.pdf
    • http://beautysale.site/is_there_a_how_to_train_your_dragon_5q7gtg.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://xosofidevutora.epizy.com/zizisebag.pdf
    • http://poravilotizeve.epizy.com/blastula_plural_form.pdf
    • https://s3.amazonaws.com/pujirageg/rousseau_social_contract_theory.pdf
    • http://dowiwofijixawo.rf.gd/wowaworovu.pdf
    • https://s3.amazonaws.com/bomupi/pajiwowug.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_off0000f956.bin
84ecb0fb185dde8a4edcf6a9674f66deb401632c6bb4ae097d627919a13ebccd
pdf-font-stream PDF embedded font (sfnt) at offset 0xF956 6052 bytes
font_01_sfnt_off00010dd5.bin
10588b4949f00459c5c77377dd19ca56dc9202fbd5c3c2e581ff54204f684005
pdf-font-stream PDF embedded font (sfnt) at offset 0x10DD5 11272 bytes