Malicious PDF — malware analysis report

Static analysis result for SHA-256 322d13d518e475d1…

MALICIOUS

PDF

78.4 KB Created: 2021-03-20 13:12:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e9254815e8af4c2ab01948e656c62349 SHA-1: 382ef79b2d4ae694717c17c4be2bccdde166972a SHA-256: 322d13d518e475d138828fd23dd4a3ebd06b96ed29697fc16bc69abe2bce3202
96 Risk Score

Malware Insights

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

The PDF document contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to a game, attempting to trick the user into visiting the malicious URL. The ML classifier and ClamAV detection strongly indicate malicious intent.

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://midufefew.ru/wix?keyword=ace+gangster+3+unblocked
    • http://persequenteamsohbet.com/kenmore_300_series_water_softener_recharge_now3kut8.pdf
    • https://cdn.sqhk.co/xotosira/igPgchi/76449062085.pdf
    • http://1xbet-football.fun/chinese_civilization_a_sourcebook_2nd_ed2198p.pdf
    • http://gazzsheff.xyz/html_form_post_radio_button_valuebcu0q.pdf
    • https://cdn.sqhk.co/duwutawuna/fihneie/amiodarona_bula_anvisa.pdf
    • http://masterpowerpoint.com/calpers_457_address_change_formub9qc.pdf
    • https://cdn.sqhk.co/dudugetogi/WiaJhaI/rojogelugakitewulipu.pdf
    • http://todayshop.website/online_fillable_5e_character_sheetc4dmj.pdf
    • http://fruit-ita.fun/565131860145mdhd.pdf
    • https://jukafubu.weebly.com/uploads/1/3/0/8/130874261/4971469.pdf
    • https://jamudavepavu.weebly.com/uploads/1/3/5/3/135324372/4524000.pdf
    • https://cdn.sqhk.co/batitiviz/eAgihag/force_in_the_big_apple_crossword_clue.pdf
    • http://kelnoteres.xyz/belkin_netcam_app_for_pcqphwn.pdf
    • http://btsworld.org/dark_phoenix_123movies547je.pdf
    • http://futup.ru/android_vpn_settings_programmaticallyj2uqk.pdf
    • http://islemleriniz.org/jawbone_up_app8juhv.pdf
    • http://pc-remont.website/the_great_depression_definition_us_historylw4ed.pdf
    • http://hargotel.xyz/stub_acme_thread_calculator_excel5jr6u.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/vebogotexaf/72740563083.pdf
    • https://s3.amazonaws.com/xukanomarexumu/lobojozapiwawun.pdf
    • https://s3.amazonaws.com/gajakelegeza/51749013567.pdf
    • https://s3.amazonaws.com/vizegemawokaxe/fajun.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_off0000f2be.bin
536c26b35fa1432028588a1ed00851e326ae9a9e116d3f60c15b2ba913cc6f4d
pdf-font-stream PDF embedded font (sfnt) at offset 0xF2BE 5464 bytes
font_01_sfnt_off00010561.bin
3c03803de401728930e5ea3ca4c77224d58fe8c48b0057f8902f7aa7a7f2a079
pdf-font-stream PDF embedded font (sfnt) at offset 0x10561 11704 bytes