Malicious PDF — malware analysis report

Static analysis result for SHA-256 874363f1ad08ab61…

MALICIOUS

PDF

185.3 KB Created: 2015-07-24 07:54:51 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6) First seen: 2021-06-17
MD5: f4ebee947ec76f73c887d09fa027c2a7 SHA-1: 05adbd21bd65afd0d15f88d1da66f11291953101 SHA-256: 874363f1ad08ab61bbd12656bdfdd430f824984859d1a3873b4d9661417a24f1
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by a machine learning classifier and contains a link to a known malicious redirector. The embedded URL likely serves as a lure to a malicious site, potentially for phishing or malware distribution. No scripts were extracted, but the presence of a malicious link is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 2

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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 http://botcraftman.ru/?lip&keyword=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%84%D0%B8%D0%BB%D1%8C%D0%BC%D1%8B+%D0%BD%D0%B0+%D1%82%D0%B5%D0%BB%D0%B5%D1%84%D0%BE%D0%BD+3gp+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+240+320&charset=utf-8 In PDF document text
    • http://fastpic.ru/In PDF document text
    • http://www.liveinternet.ru/clickIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187707_moduy_ot_jove_dlya_world_of_tanks_092.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189621_kod_licenzii_dlya_pro_edition.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184644_skachat_autocad_2014_rus_besplatno_cherez_torrent.pdfIn PDF document text
    • http://www.microsoft.com/typography/fonts/In PDF document text
    • http://www.microsoft.com/typography/fonts/YouIn PDF document text

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002404a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2404A 3556 bytes
SHA-256: 880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
font_01_sfnt_off00024dcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24DCD 14408 bytes
SHA-256: 553d0f8b5f50a9edefd015fb9c93abc9421263dcdd538ac74ddb9da5a687eb48
font_02_sfnt_off00027adb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x27ADB 14468 bytes
SHA-256: d04e8b3e76b5b3c09cb25b9e7d8d4c1372dd3dfeb98f7d59da8ec3a928c3fd6b
font_03_sfnt_off0002a589.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A589 7468 bytes
SHA-256: 01a2ff604b0e0403d2f77c278d4089dce801f869db31612c6417c27262b116c5
font_04_sfnt_off0002bb7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BB7E 6084 bytes
SHA-256: 819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
font_05_sfnt_off0002cb13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB13 3752 bytes
SHA-256: 9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e

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