Malicious PDF — malware analysis report

Static analysis result for SHA-256 8801a13491109b24…

MALICIOUS

PDF

185.1 KB Created: 2015-07-26 13:31:22 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 73829cc5532639649943731ba7ed484b SHA-1: dd2039f2757a25686fa73fa16aa2691649195b39 SHA-256: 8801a13491109b24090cf565f50e8cddf58472b3d09aebbfa37d2dda04b63925
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by a machine learning classifier and contains a link to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is highly suspicious and likely serves as a lure to a malicious website. No scripts were extracted, but the presence of a malicious link suggests an attempt to redirect the user to a phishing or malware distribution site.

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%B3%D0%BE%D0%BB%D1%8B%D0%B5+%D1%81%D0%B2%D1%8F%D0%B7%D0%B0%D0%BD%D0%BD%D1%8B%D0%B5+%D0%B4%D0%B5%D0%B2%D1%83%D1%88%D0%BA%D0%B8+%D1%84%D0%BE%D1%82%D0%BE&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192178_samsung_clx3305_proshivka_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184441_bumer_notuy_na_bayan.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4199/4199631_skachat_vk_na_telefon_java.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000240e2.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x240E2 3556 bytes
font_01_sfnt_off00024e65.bin
2d110d068f378bfa247a1949187ce69c049fc97bf6f83f7404debc6c169a1148		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24E65 14740 bytes
font_02_sfnt_off00027bf7.bin
d9775475238cab7937fa4e35d65fbe93a357e8a9e242d68b4cc886ecd1dec298		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27BF7 14520 bytes
font_03_sfnt_off0002a6c6.bin
befa62541e277224f82f39762dd4113c8bd6cfe360e7e77806f7a6381cdacb8a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A6C6 6836 bytes
font_04_sfnt_off0002ba72.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BA72 6084 bytes
font_05_sfnt_off0002ca07.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CA07 3752 bytes

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