Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba94b3a93bae82f2…

MALICIOUS

PDF

66.7 KB Created: 2021-04-01 15:58:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0f0423d33a1139006145e0bfe551a799 SHA-1: e8d7824089ae1ff1f96ae6f0ab7f3bd6ca139a50 SHA-256: ba94b3a93bae82f281397aa9da9919098676b45f7e1b496bf1eef1cec1ace8ff
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains an embedded URL pointing to 'botokaw.ru', which is likely used to redirect the user to a malicious site. The document body, though heavily obfuscated, appears to contain metadata related to a product listing, suggesting a lure to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://botokaw.ru/aws?utm_term=garmin+montana+650t+battery
    • https://cdn-cms.f-static.net/uploads/4495855/normal_602bffe22fdfa.pdf
    • https://motanaweda.weebly.com/uploads/1/3/4/3/134316912/wapate.pdf
    • https://zowuxani.weebly.com/uploads/1/3/4/8/134898183/5e948b15f.pdf
    • https://static.s123-cdn-static.com/uploads/4444374/normal_5fffe0b8660e5.pdf
    • https://static.s123-cdn-static.com/uploads/4388160/normal_5fcf232da0236.pdf
    • https://cdn.sqhk.co/zosurinipin/yVmUjgg/mario_kart_wii_tournament_2020.pdf
    • https://cdn.sqhk.co/mojafefegamo/cOYVqA1/driving_zone_japan_mod_apk_android_club.pdf
    • https://static.s123-cdn-static.com/uploads/4495399/normal_5fefa904694b9.pdf
    • https://cdn-cms.f-static.net/uploads/4476275/normal_5fd61315ea60d.pdf
    • https://cdn.sqhk.co/xuxiropuwomo/ie6YkFt/79033904369.pdf
    • https://cdn-cms.f-static.net/uploads/4366947/normal_60489c6933944.pdf
    • https://static.s123-cdn-static.com/uploads/4501775/normal_5fc850a726cb0.pdf
    • https://cdn.sqhk.co/motixekotet/ithhhgm/download_game_typoman_mobile_mod.pdf
    • https://cdn.sqhk.co/vunofufi/THhiZic/30903980158.pdf
    • https://cdn-cms.f-static.net/uploads/4478398/normal_6065542141bcc.pdf
    • https://cdn-cms.f-static.net/uploads/4414169/normal_6042d5f949e90.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/zevutebulaworel/3222366782.pdf
    • https://s3.amazonaws.com/likerajatob/nebobirasajapepakozarow.pdf
    • https://s3.amazonaws.com/mudurixo/fidor.pdf
    • https://uploads.strikinglycdn.com/files/9a1be38f-bb88-4904-b4fb-282968cd3296/83901132281.pdf
    • https://s3.amazonaws.com/genedonapubefe/92557459760.pdf
    • https://uploads.strikinglycdn.com/files/77e0064d-2909-4604-8350-531f1da75503/writing_a_screenplay_for_dummies.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_off0000c6bd.bin
3c19f11257c33b043ddefe6bdccf4c82a344f23f297ea70f252e60f22dce75c4
pdf-font-stream PDF embedded font (sfnt) at offset 0xC6BD 5316 bytes
font_01_sfnt_off0000d8c1.bin
9d85bfd4fac9ca0baf8c545586a9de96c55e40a670e65d777bacb85293cb0470
pdf-font-stream PDF embedded font (sfnt) at offset 0xD8C1 10796 bytes