Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e9f4234e5bede18…

MALICIOUS

PDF

82.6 KB Created: 2020-12-27 00:04:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e84390063a4fcc5a9716c83116fac4bf SHA-1: 74cdeecb8ac1b826fbf4b9f31459414b6f0e14f4 SHA-256: 2e9f4234e5bede18cd68d68f703c2068de0ee769b4249c47e5a05aea455bac95
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, with heuristics indicating the presence of an external URI. The embedded URL, 'https://trafficel.ru/strik?utm_term=disney+sorcerer%2527+s+arena+best+pvp+team', suggests a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and the nature of the URL point towards a social engineering tactic to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://trafficel.ru/strik?utm_term=disney+sorcerer%2527+s+arena+best+pvp+team
    • https://cdn.sqhk.co/jozojijejip/egfijew/9614799252.pdf
    • https://cdn-cms.f-static.net/uploads/4487662/normal_5fe7b3548a2d0.pdf
    • https://cdn.sqhk.co/palevisi/jdzwibO/78146861156.pdf
    • https://static.s123-cdn-static.com/uploads/4372737/normal_5fca33fa59be8.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/rujabepifar/butler_s_garter_snake_pictures.pdf
    • https://s3.amazonaws.com/gowupuzokowuxes/go_keyboard_emoji_premium_apk.pdf
    • https://s3.amazonaws.com/metubevozisul/texas_uil_science_practice_tests.pdf
    • https://s3.amazonaws.com/gulapore/vatukoxa.pdf
    • https://s3.amazonaws.com/bifadiwuwileji/lenelipavevunet.pdf
    • https://s3.amazonaws.com/zonebon/baazigar_songs_bestwap_in.pdf
    • https://s3.amazonaws.com/lojigevaxive/choice_of_games_apk_full.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f0ed.bin
eb38937e510458440fe648059c7738c96773b30d13ef171a9e460f85a3de6c05		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF0ED 5384 bytes
font_01_sfnt_off0001033e.bin
16a2fcdb0912ab7e109c03b38c82a2b5588153d388bc7ec20a4ba693954e4c50		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1033E 10920 bytes
font_02_sfnt_off00012894.bin
13c540cfff82c4dbf750c4d8c74e2b7b4ef1ed85145f82e59f5e6266b522e2c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12894 16096 bytes

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