Malicious PDF — malware analysis report

Static analysis result for SHA-256 4dbd6ee28bd0e1b8…

MALICIOUS

PDF

78.2 KB Created: 2021-04-10 04:53:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 66cc106394f68f4e3265c9b1332a4aae SHA-1: c523278c4e65fa69c073fb7fe5e406814bb9f3c9 SHA-256: 4dbd6ee28bd0e1b859afd67dc73df0d8cce1f02e240f9be69105de2bf8d68ce7
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document body, though heavily obfuscated, contains text related to 'Maytag top load washer dryer reviews', suggesting a phishing or scam lure. An external URI pointing to 'jottigo.ru' was extracted, likely serving as a landing page for the 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://jottigo.ru/strik?utm_term=maytag+top+load+washer+dryer+reviews
    • https://cdn.sqhk.co/zatejurix/1ijaBI8/90999482245.pdf
    • https://cdn.sqhk.co/soxoxefumuv/6hjThbq/stickman_z_shadow_dragon_battle.pdf
    • https://cdn.sqhk.co/ligumorik/MjMqdhj/cn_superstar_soccer_mod_apk.pdf
    • http://xasumemazekejo.scienceontheweb.net/english_to_tagalog_translation_free_download.pdf
    • http://dorulezebum.sportsontheweb.net/estados_financieros_ecopetrol.pdf
    • http://zegererevez.medianewsonline.com/31535081523.pdf
    • http://jepisafidezegun.scienceontheweb.net/varulowosafuve.pdf
    • http://nimidarizul.22web.org/popabelejopufajitu.pdf
    • https://cdn.sqhk.co/ketodumukiv/liijaSu/xuwadewixogobanogif.pdf
    • https://cdn.sqhk.co/menasimax/HpjiVhf/xufepubobadaros.pdf
    • https://cdn.sqhk.co/farovufu/gQjbick/rover_sport_supercar_speed_drifter.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://zizidamikedug.epizy.com/pdf_drucken_aus_edge_funktioniert_nicht.pdf
    • http://vilukuwiw.epizy.com/kedujobafulikibas.pdf
    • http://jizunija.epizy.com/kuduka.pdf
    • http://fipivolakiwupod.rf.gd/sijopomexagawug.pdf
    • http://zukopizovevawip.rf.gd/39068077118.pdf
    • http://tepisivud.epizy.com/bottle_python_template_function.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_off0000f508.bin
18f5a09eb0eaf28835ae1c58afe9d706bd8cfe4fbce7c1bac57694fd4178059f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF508 5480 bytes
font_01_sfnt_off000107d2.bin
d2a5a360d9ef69af4fd748772073688acacee1479e70d36ecf4a76132a1174e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x107D2 10560 bytes

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