Malicious PDF — malware analysis report

Static analysis result for SHA-256 76adf27f6053702d…

MALICIOUS

PDF

186.3 KB Created: 2015-08-05 22:30:02 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: e0a0ab81241a3a4255b5283f02aa47be SHA-1: 98f5f83ba403aeb311a036cba7598578a6469f0f SHA-256: 76adf27f6053702d16bcaf70b5fdaa1c97f2bfa2bf886127db6e0a83c3bcf33d
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL, http://botcraftman.ru/..., is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site. No scripts were extracted from this sample.

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%B5%D1%80%D0%B8%D0%B0%D0%BB%D1%8B+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305864_letuchaya_muysh_operetta_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4306/4306870_ischeznuvshaya_gillian_flinn_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4306/4306872_euro_truck_simulator_2_171_skachat_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002462e.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2462E 3556 bytes
font_01_sfnt_off000253b1.bin
faffde35ef104b5c18682458ad83f56223f1de68a5b1538239d72e42ba65c28e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x253B1 14684 bytes
font_02_sfnt_off0002813c.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2813C 14468 bytes
font_03_sfnt_off0002abee.bin
90be4aed90edfc04aef3c49546a2598b8fcb58b10a3f6915c6b7f2026f72756b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ABEE 6732 bytes
font_04_sfnt_off0002bf3a.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BF3A 6084 bytes
font_05_sfnt_off0002cecf.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CECF 3752 bytes

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