Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab1126a2591bfa3c…

MALICIOUS

PDF

186.3 KB Created: 2015-07-24 14:41:58 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 1eb3a3a09fd52ad80e7e5f3b52281aed SHA-1: 2e5ac6c34d80c30571b46b060907de431ad318b1 SHA-256: ab1126a2591bfa3cfdffabfdc5f5ffc89cf45812f08a45260593e325287107ab
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 linking to known malicious redirector infrastructure. The ML classifier also assigned a high probability of maliciousness. The embedded URL points to 'botcraftman.ru', which is identified as a malicious redirector. No scripts were extracted, but the presence of the malicious link strongly suggests a phishing or malware delivery attempt.

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%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D0%BB%D0%B0%D0%BD%D0%B4%D1%88%D0%B0%D1%84%D1%82%D0%BD%D1%8B%D0%B9+%D0%B4%D0%B8%D0%B7%D0%B0%D0%B9%D0%BD&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192099_skachat_mod_na_maynkraft_152_na_vlastelin_kolec.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192675_igra_prestolov_2_sezon_skachat_besplatno_cherez_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192638_sozdat_priglashenie_na_svadbu_onlayn_besplatno.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000246b0.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
pdf-font-stream PDF embedded font (sfnt) at offset 0x246B0 3556 bytes
font_01_sfnt_off00025433.bin
41fea15a6916b6d37f8effb2c1603e73d027424d2c15fdf2ac4e2652bd19cd26
pdf-font-stream PDF embedded font (sfnt) at offset 0x25433 14128 bytes
font_02_sfnt_off0002806d.bin
8c5e5bc4674cee60ec6c1619e60533ff44be00efca6b5f228c587d2f19a61a12
pdf-font-stream PDF embedded font (sfnt) at offset 0x2806D 14520 bytes
font_03_sfnt_off0002ab3c.bin
fc29ab66fa20a588ec012cb971c4bf471d1a77ea61d86cdb8a7da69dd0b46f7a
pdf-font-stream PDF embedded font (sfnt) at offset 0x2AB3C 7032 bytes
font_04_sfnt_off0002bf85.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x2BF85 6084 bytes
font_05_sfnt_off0002cf1a.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e
pdf-font-stream PDF embedded font (sfnt) at offset 0x2CF1A 3752 bytes