Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e5fe5bdee1d18fd…

MALICIOUS

PDF

102.9 KB Created: 2021-03-08 09:52:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b7c85ad7e9924c5655df77ea81e56628 SHA-1: 2160fd323d816a592484e603d19fc91b24ca838b SHA-256: 7e5fe5bdee1d18fd17380e389c92ca7027eefc7bfd1f3d65c31847d1c33495a0
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'https://golowaki.ru/wix?keyword=mulan+shan+yu+death', which is likely a phishing lure or a distribution point for further malware. The document body, though heavily obfuscated, suggests a theme related to 'Mulan shan yu death', possibly to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9931

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://golowaki.ru/wix?keyword=mulan+shan+yu+death
    • http://eslivdrug.space/403375550035v87c.pdf
    • https://static.s123-cdn-static.com/uploads/4450260/normal_5fefe6b16d0e1.pdf
    • https://static.s123-cdn-static.com/uploads/4379987/normal_5fec035a1dbc4.pdf
    • https://cdn-cms.f-static.net/uploads/4485162/normal_603f979821cc8.pdf
    • http://wisatemubudu.medianewsonline.com/basic_italian_phrases_youtube.pdf
    • http://sokixatov.mywebcommunity.org/13720934235.pdf
    • https://static.s123-cdn-static.com/uploads/4369328/normal_5fded19569daa.pdf
    • http://filanion.online/what_is_social_networking_in_computerin0mf.pdf
    • https://cdn-cms.f-static.net/uploads/4366628/normal_5fe8e79d3869e.pdf
    • http://xploitcrew.io/coffin_dance_meme_10_hours_minecraftgf54a.pdf
    • https://static.s123-cdn-static.com/uploads/4416654/normal_5ffca6e293bf8.pdf
    • http://tersq.space/34693503166yf2ij.pdf
    • https://cdn-cms.f-static.net/uploads/4421468/normal_5fe99ba095d9e.pdf
    • https://cdn-cms.f-static.net/uploads/4495391/normal_603bff9a33528.pdf
    • http://luwinilulurop.mywebcommunity.org/48228289470.pdf
    • https://cdn-cms.f-static.net/uploads/4476758/normal_600c41e2eab85.pdf
    • http://ericksandoval.com/what_is_cbt_for_anxietybe6m1.pdf
    • https://cdn-cms.f-static.net/uploads/4379038/normal_5fd1bfab99aec.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/5da6454f-cd2a-4a5f-90b5-1bfadc54a901/gone_with_the_wind_sequel_summary.pdf
    • https://uploads.strikinglycdn.com/files/aa9f5330-0d17-402d-a34d-431bf36637a1/pufogipogomafutovofawa.pdf
    • http://naburonip.myartsonline.com/edge_of_the_empire_dice_roller.pdf
    • https://uploads.strikinglycdn.com/files/a8a3d286-f1da-4850-a5a1-197b9c2162ba/87950827765.pdf
    • http://pusapovewazigu.onlinewebshop.net/how_do_you_use_loreal_hicolor_blonde_for_dark_hair.pdf
    • http://sajulugebimisu.myartsonline.com/panasonic_phone_clear_blocked_numbers.pdf
    • https://uploads.strikinglycdn.com/files/926fadc5-b55e-406b-b624-982b07ba4c0f/fix_typewriter_near_me.pdf
    • https://uploads.strikinglycdn.com/files/5ef6bb5b-1bb9-411c-bf5d-ae61d885dea3/allora__calzadilla_in_collaboration_with_ted_chiang_the_great_silence.pdf
    • http://gaxilitexu.onlinewebshop.net/unity_synonyms_list.pdf
    • http://zevesijuduma.atwebpages.com/petit_prince_chapter_3_summary.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00014bf6.bin
19ee821095c78be1a49c1a4f2d05a1f1e9122ca0d9f306c83972f98271b4873c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14BF6 4648 bytes
font_01_sfnt_off00015bb8.bin
632225f902aa0469154f01ec5508742f3957772930efa5cb4943f7646f3795e8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15BB8 10424 bytes
font_02_sfnt_off00017f50.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17F50 4324 bytes

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