Malicious PDF — malware analysis report

Static analysis result for SHA-256 5abbbd50bf941bb7…

MALICIOUS

PDF

77.2 KB Created: 2021-03-23 05:49:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: d43f9e156cb64d3806afbcbf68e1b3f9 SHA-1: 9e09db39167d9c1c6598e75e786ed5afef1cf36a SHA-256: 5abbbd50bf941bb74d4d57c718d3178cab9c5ddf30134ccee09158e9e9fc32e7
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 partially corrupted, suggests a lure related to 'buenos habitos alimenticios' (good eating habits), likely to entice users to click on the embedded URL. The primary IOC is the external URI pointing to 'soxebez.ru', which is likely part of the phishing or malware distribution infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://soxebez.ru/award?keyword=buenos+habitos+alimenticios+pdf PDF link annotation
    • http://xejebowipuzusim.iblogger.org/coreldraw_2019_full_with_crack.pdfIn PDF document text
    • https://cdn.sqhk.co/turomixo/ahhbkzP/xifomilekuzofirabak.pdfIn PDF document text
    • https://cdn.sqhk.co/letareximo/60hchh1/gudefurewulawip.pdfIn PDF document text
    • https://cdn.sqhk.co/nevupediwix/iehdvic/don_t_touch_my_phone_anime_wallpaper.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://042e50b4-45d0-4577-915a-c14d43ab21ad.filesusr.com/ugd/18f527_8dd67370dea54f2f928af5ac3d8f9a68.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/fea35c5e-55b0-434d-afad-07ee44cab405/optoma_projector_hd20_specs.pdfIn PDF document text
    • https://s3.amazonaws.com/wajibile/fiction_genres_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/savifin/dslr_camera_starter_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/povodijirig/xixen.pdfIn PDF document text
    • https://44bb6ee8-a0fe-4f72-890f-0f0a2fec05cf.filesusr.com/ugd/b65acf_a896abc587554fbda880a7eee05c8193.pdf?index=trueIn PDF document text
    • https://0879403c-3be5-48e4-925f-21334a7d5cfe.filesusr.com/ugd/407fcc_360c220968bf4f55a1b059b3d29c0984.pdf?index=trueIn PDF document text
    • http://kepakumikebusu.epizy.com/group_4_answer_key_2019_tamil.pdfIn PDF document text
    • https://s3.amazonaws.com/sirilagewuga/makita_chainsaw_chain_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/juzewojavomofew/lakenagilu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0258a88e-b91c-450a-8a31-ffec6de1693a/blood_bowl_2_shop_codes.pdfIn PDF document text
    • https://s3.amazonaws.com/divexikav/42157758373.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/505c24ac-5992-476d-b1ba-b0676bcb0e12/50457653257.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7441684c-f7d8-4644-9682-012e25a2e2d8/revaro.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4630c33a-f83e-4665-b9e9-eb176dc4ca08/vonapiwewanujevuteros.pdfIn PDF document text
    • https://57fc24c6-ba7c-430a-bdae-05304608b610.filesusr.com/ugd/bc9c68_68c33aa9fc564d0ca8ab27d867e2c4ac.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jinabom/powefulavalotazelesate.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
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ed3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED3C 5488 bytes
SHA-256: 2f982b13ffa21de769dcad5fcdd046036e768c2f0fa57f347a63be7d3c85746e
font_01_sfnt_off0000ffc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFC2 11780 bytes
SHA-256: 16ac78e1f4966acd62a9abe53cec06e277d02a3905bf5a9b25a6e66a6ed583a5

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