Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7eb668f98d069ae…

MALICIOUS

PDF

185.1 KB Created: 2015-08-06 18:34:25 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6) First seen: 2018-02-19
MD5: 2edf6773b18110060bc375dd6a90b21e SHA-1: fda292b04823376df97e4daad2646302bccdaf62 SHA-256: d7eb668f98d069aeb2c878a73a160dfcd18baa514aa672b0f411b4fc3ca711e8
132 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a link to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/?lip&keyword=%D1%81%D0%B0%D1%80%D1%81%D0%B0%D0%BD+%D0%B8%D0%B6%D0%B5%D0%B2%D1%81%D0%BA+%D0%B3%D0%BB%D0%B0%D0%B7%D0%BE%D0%B2+%D1%80%D0%B0%D1%81%D0%BF%D0%B8%D1%81%D0%B0%D0%BD%D0%B8%D0%B5&charset=utf-8, is the primary indicator of malicious intent. This suggests the document is part of a phishing or social engineering campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 3

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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%B0%D0%BF%D1%81%D0%B0%D0%BD+%D0%B8%D0%B6%D0%B5%D0%B2%D1%81%D0%BA+%D0%B3%D0%BB%D0%B0%D0%B7%D0%BE%D0%B2+%D1%80%D0%B0%D1%81%D0%BF%D0%B8%D1%81%D0%B0%D0%BD%D0%B8%D0%B5&charset=utf-8 In PDF document text
    • http://fastpic.ru/In PDF document text
    • http://www.liveinternet.ru/clickIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4315/4315280_programma_dlya_raskrutki_grupp_v_kontakte_skachat_besplatno.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/5//4258/4258737_skachat_igru_pokemonuy_na_kompyuter_besplatno_na_russkom_yazuyke.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4307/4307433_rezyume_glavnuyy_yenergetik.pdfIn PDF document text
    • http://www.microsoft.com/typography/fonts/In PDF document text
    • http://www.microsoft.com/typography/fonts/YouIn PDF document text

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024122.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24122 3556 bytes
SHA-256: 880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
font_01_sfnt_off00024ea5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24EA5 14700 bytes
SHA-256: 3157704ebee9b974c33e81fbbc99f94a6d3ab476baba2d224cdaa80e6869d1fe
font_02_sfnt_off00027cec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x27CEC 14468 bytes
SHA-256: b79d56b22a3d37edc4793e81e28af2d51416733c1decb699be69ae0b1e9dff38
font_03_sfnt_off0002a79b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A79B 6604 bytes
SHA-256: f62b884565c7bf93b2b4f7d3b1c63cfcd716b42097c68805ddb145a0523ca449
font_04_sfnt_off0002ba68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BA68 6084 bytes
SHA-256: 819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
font_05_sfnt_off0002c9fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C9FD 3752 bytes
SHA-256: 9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e