Malicious PDF — malware analysis report

Static analysis result for SHA-256 46367247d23fee07…

MALICIOUS

PDF

184.3 KB Created: 2015-07-23 22:07:20 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c0a93225a7880c5bebef564704141b45 SHA-1: 99ea95046568dd0fa0da37138ddca8b840b0d427 SHA-256: 46367247d23fee0777a354d3a0a558eb1936537d513faed2f3c92cbaa26d7f6e
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for containing a link to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL points to botcraftman.ru, which is associated with malicious redirectors. No scripts were extracted, and the document body was largely unreadable binary data, limiting further analysis of the specific lure.

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=%D0%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B4%D1%80%D0%B0%D0%B9%D0%B2%D0%B5%D1%80%D0%B0+tremor+via+1618s&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184554_sims_3_polnaya_antologiya_19_v_1_skachat_torrent_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184319_kryak_alavar_2015.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184365_mortal_kombat_vs_dc_universe_pc_skachat_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a1a9.bin
ea66215bdf04004ad46e8a7742a87e04f761c00cbbd047000854bed4f38d8bbc		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A1A9 7440 bytes
font_00_sfnt_off00023c10.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23C10 3556 bytes
font_01_sfnt_off00024993.bin
dad5bba43c99af98f1b585bd2b8db62d244890a43da964900baa76a6733fc797		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24993 14256 bytes
font_02_sfnt_off000275f0.bin
1f2ae144e74d566710e68b930b5b7c7967a5d29faa0df227161623beeefaceae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x275F0 14792 bytes
font_04_sfnt_off0002b78c.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B78C 6084 bytes
font_05_sfnt_off0002c721.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C721 3752 bytes

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