Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c04b1d4c5b0b164…

MALICIOUS

PDF

183.4 KB Created: 2015-08-09 08:22:14 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6) First seen: 2021-09-16
MD5: 3d488628d09e49b92c991d2a30d86608 SHA-1: dfce175dcb01b4dcbdcb0705b6651f56018ab3bd SHA-256: 7c04b1d4c5b0b1645d1458434a2cf3d47b8bb7b8897d46b6099790c6453e826f
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by multiple heuristics as malicious, specifically for containing a link to a known malicious redirector. The embedded URL `http://botcraftman.ru/...` is highly suspicious and likely serves as a lure to a phishing or malware distribution page. No scripts were extracted, but the presence of the malicious link strongly suggests a social engineering attack.

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+%D0%B1%D0%B0%D0%B3%D0%B8+%D0%BD%D0%B0+%D0%B2%D0%BE%D1%80%D0%BC%D0%B8%D0%BA%D1%81&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/6//4405/4405295_pou_chit.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/6//4392/4392068_deep_exploration_65_torrent.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4389/4389881_fotoshop_uroki_skachat_besplatno_na_russkom.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_off00023bcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x23BCF 3556 bytes
SHA-256: 880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
font_01_sfnt_off00024952.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24952 14452 bytes
SHA-256: 8e37738fbb65006574ad19aad501447d05747cc428e7e6e5199f86762b458836
font_02_sfnt_off00027657.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x27657 14468 bytes
SHA-256: c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd
font_03_sfnt_off0002a109.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A109 6540 bytes
SHA-256: a8c94d494f1360bf360714f110a6fc03cc33fc7cd229ff3354b207f10086498a
font_04_sfnt_off0002b3ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B3AE 6084 bytes
SHA-256: 819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
font_05_sfnt_off0002c343.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C343 3752 bytes
SHA-256: 9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e

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