Malicious PDF — malware analysis report

Static analysis result for SHA-256 f84497181a2b99ee…

MALICIOUS

PDF

183.9 KB Created: 2015-07-24 14:58:29 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 9913110175276331eb0645b91c0bf559 SHA-1: aac5d0bc45358a6ab2775f21861f4a56b222aa55 SHA-256: f84497181a2b99ee0a20e34defa4de725d2ba638b354456c8412ed48a04b36a4
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 a known malicious redirector. The ML classifier also strongly indicated maliciousness. The embedded URL points to botcraftman.ru, which is associated with malicious redirector infrastructure. No scripts were extracted, and the document body was not parsable, but the presence of the malicious link is sufficient evidence of a likely 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=yandex+%D0%B1%D1%80%D0%B0%D1%83%D0%B7%D0%B5%D1%80+portable&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192654_skachat_kontaktmaster_extra_polnaya_versiya_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184905_moduy_na_evro_trek_simulyator_2_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192505_skachat_besplatnuyy_pley_market_na_planshet.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023ba7.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23BA7 3556 bytes
font_01_sfnt_off0002492a.bin
c385d12088d7cac31709b91753f0756b3a4ea8fe981b5642b42382333fcc06bf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2492A 14460 bytes
font_02_sfnt_off000275f5.bin
cd1e342b5e9262b7e0a11d93119f4dbb333609f44de44e0fd216c8ede1c53bfa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x275F5 14832 bytes
font_03_sfnt_off0002a1d2.bin
06638d001d6cc16256a87e8b33ff9648313aa358bb19df90074fd0b15401c235		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A1D2 6912 bytes
font_04_sfnt_off0002b5c8.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B5C8 6084 bytes
font_05_sfnt_off0002c55d.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C55D 3752 bytes

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