Malicious PDF — malware analysis report

Static analysis result for SHA-256 4123089b080ea31b…

MALICIOUS

PDF

186.5 KB Created: 2015-07-23 20:56:01 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c7b4eb4a016dd00a06a8f15f8c5f4ef5 SHA-1: c2276d2099ff7a3d763ca29fe50028bc429ec3ea SHA-256: 4123089b080ea31bce2cfac71b1cdc572dafbbf28603b474a89252369ee70995
90 Risk Score

Malware Insights

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

The PDF contains an embedded link to a known malicious redirector, botcraftman.ru. This indicates the file is designed to lure users to a malicious site, likely for phishing or malware distribution. No scripts were extracted, but the PDF structure and the malicious URL are strong indicators 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+%D0%B2%D0%B7%D0%BB%D0%BE%D0%BC%D0%B0%D0%BD%D0%BD%D1%83%D1%8E+%D0%B8%D0%B3%D1%80%D1%83+%D0%BC%D0%BE%D0%B9+%D0%B3%D0%BE%D0%B2%D0%BE%D1%80%D1%8F%D1%89%D0%B8%D0%B9+%D1%82%D0%BE%D0%BC&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184584_shema_kubik_rubika_3h3.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184374_skachat_igru_alien_shuter_nachalo_vtorzheniya_cherez_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183181_kuryatnik_shema.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000246c3.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
pdf-font-stream PDF embedded font (sfnt) at offset 0x246C3 3556 bytes
font_01_sfnt_off00025446.bin
527f940965a66cb364a8a384c359e8dd6937c06969cd753d0239103438c80243
pdf-font-stream PDF embedded font (sfnt) at offset 0x25446 14388 bytes
font_02_sfnt_off00028168.bin
4ae165705ecc41720893a92c6e94e3ee89b3be36a12e4a920505046f59c61edc
pdf-font-stream PDF embedded font (sfnt) at offset 0x28168 14468 bytes
font_03_sfnt_off0002ac16.bin
c4b68fbec76fc27de546bb21d2cbbd3a70b86d8d8d3e56069cae64e5aa3072c0
pdf-font-stream PDF embedded font (sfnt) at offset 0x2AC16 6960 bytes
font_04_sfnt_off0002c031.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x2C031 6084 bytes
font_05_sfnt_off0002cfc6.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e
pdf-font-stream PDF embedded font (sfnt) at offset 0x2CFC6 3752 bytes