Malicious PDF — malware analysis report

Static analysis result for SHA-256 b01d6334ce56c4d6…

MALICIOUS

PDF

104.7 KB Created: 2021-04-07 22:18:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 77eda2cec204497b243f164b22afae66 SHA-1: d7db683fde9c7cf22c6d5558a7f70dac6b176bef SHA-256: b01d6334ce56c4d6fb9f7b22d8a80d4e1049f397de64ad32942e9e658436032c
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://nipisod.ru/wix?keyword=go+math+grade+4+chapter+4+answer+key PDF link annotation
    • http://livecopyrightverification.com/bosch_dryer_parts_listl83bi.pdfIn PDF document text
    • https://cdn.sqhk.co/buzosefif/vjage2D/luxuzozuterafuziduf.pdfIn PDF document text
    • https://cdn.sqhk.co/xekejegixawo/9rNzuFn/towojalidurumivanef.pdfIn PDF document text
    • http://torchland.xyz/bijegogaab5zc.pdfIn PDF document text
    • https://cdn.sqhk.co/xuwisagilevi/uib6Vua/nukimogonanapof.pdfIn PDF document text
    • https://cdn.sqhk.co/pumopivosoba/FBIFwij/kubininivanapeji.pdfIn PDF document text
    • https://cdn.sqhk.co/joxomawezu/hfhaAD8/guide_for_one_punch_man_tips_bermain.pdfIn PDF document text
    • https://cdn.sqhk.co/naxupowu/bihbNge/download_soulcraft_2_action_rpg_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/gijosevozu/eSGJjbp/carrera_rc_mario_kart_yoshi.pdfIn PDF document text
    • https://cdn.sqhk.co/rumobotituda/hcjeiej/zeus_tattoo_waterbury_ct.pdfIn PDF document text
    • https://cdn.sqhk.co/bafujifi/gboyXf2/fetotovadapurenokor.pdfIn PDF document text
    • http://semengergel.ru/sanjuan_student_zanglentxb6.pdfIn PDF document text
    • https://cdn.sqhk.co/jenobodebo/GhjievY/missguided_green_lace_bardot_midi_dress.pdfIn PDF document text
    • https://cdn.sqhk.co/rotonoba/DTbhigg/ninop.pdfIn PDF document text
    • http://presentinsta.online/last_valiant_rerollixaep.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/54139dcf-d66c-4ba4-b6fb-4e49de7a0e9a/80516538469.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/439506e6-a5a5-46e0-aae7-3785985b112b/what_size_tires_does_a_2009_ford_focus_have.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000130f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x130F0 6440 bytes
SHA-256: 2ce5a7286efefc5aae27ce1c31b3347e159d00bd30cf97f509a0b7f7d49caffb
font_01_sfnt_off000140e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x140E5 5832 bytes
SHA-256: 21b47bc610e8e247cd4bc061b290a2e2e57cd5f49c081e38edf6bbd26e5a7ce5
font_02_sfnt_off000154ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x154BA 12048 bytes
SHA-256: 2511b62e0aa825ff60578742450203590a43a836e9d24380691e33f33a6f382c
font_03_sfnt_off00017e11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17E11 16096 bytes
SHA-256: 3a87a2a80cb0740ff7ad33dbd9b35031d90241dfccc5ab96a3d2c3133af9c3ca

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