Malicious PDF — malware analysis report

Static analysis result for SHA-256 386b6ea2abfbbc44…

MALICIOUS

PDF

186.7 KB Created: 2015-08-05 15:43:32 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6) First seen: 2021-06-20
MD5: fc0db38abe61e0cb8f2498f82a3ade6a SHA-1: 73f908a7dc9e796ddbeeeb008ee141f8054130f3 SHA-256: 386b6ea2abfbbc44b1b08ed105158325670f7a25ef1aa25d87feb542ef38a4c7
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing indicating a redirect to known malicious infrastructure. The embedded URL `http://botcraftman.ru/...` is identified as a malicious redirector. While no scripts were extracted, the presence of this malicious link strongly suggests the document's purpose is to lure the user to a compromised site, likely for further exploitation or credential harvesting.

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+%D1%81%D0%B8%D0%BC%D1%83%D0%BB%D1%8F%D1%82%D0%BE%D1%80+%D0%B2%D0%BE%D0%B6%D0%B4%D0%B5%D0%BD%D0%B8%D1%8F+%D0%BC%D0%BE%D1%82%D0%BE%D1%86%D0%B8%D0%BA%D0%BB%D0%B0+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&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//4305/4305663_olimpiada_po_russkomu_yazuyku_9_klass_s_otvetami_2015.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304837_anketa_pri_prieme_na_rabotu_primer.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305898_dogovor_postavki_tovara_fizicheskomu_licu.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_off000246e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x246E2 3556 bytes
SHA-256: 880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
font_01_sfnt_off00025465.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x25465 14240 bytes
SHA-256: e6ac3fb49dcd5dc118e7e28a493110d8d62fa65a1798251e5367682e0d8ed3e0
font_02_sfnt_off0002813d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2813D 14468 bytes
SHA-256: c457fcfaab6f548331a7572fefd0d96ae260c7787e9dff2b51ae1aa36573dbb9
font_03_sfnt_off0002abec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2ABEC 7156 bytes
SHA-256: 19c1682d0f31496e7f323bcf05c1067fddb86ec76232ca8d812bcc568a328126
font_04_sfnt_off0002c0d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C0D1 6084 bytes
SHA-256: 819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
font_05_sfnt_off0002d066.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D066 3752 bytes
SHA-256: 9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e

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