Malicious PDF — malware analysis report

Static analysis result for SHA-256 f89d09079cf84c61…

MALICIOUS

PDF

186.7 KB Created: 2015-08-08 10:56:09 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c4b9b0c93478fcd220df9766882fb207 SHA-1: dc1b677c2b67839eea465dbaf0ea3f0537ded5ee SHA-256: f89d09079cf84c610f972426c1db8b64c439f9e06a062f5f99b6efa15b6bd59c
90 Risk Score

Malware Insights

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

The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL, http://botcraftman.ru/..., is the primary indicator of compromise, likely serving as a gateway to a malicious payload or phishing page. No scripts were extracted, and the document body was not parsable.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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%BA%D0%B8%D1%82%D0%B0%D0%B9%D1%81%D0%BA%D0%B0%D1%8F+%D1%80%D0%BE%D1%81%D0%BF%D0%B8%D1%81%D1%8C+%D0%BD%D0%BE%D0%B3%D1%82%D0%B5%D0%B9+%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE+%D1%83%D1%80%D0%BE%D0%BA%D0%B8+%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&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4386/4386254_skachat_znachok_odnoklassniki_na_rabochiy_stol.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385085_programmuy_dlya_vzloma_wifi_na_android.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4386/4386004_programma_dlya_nachisleniya_golosov_skachat_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000246fb.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x246FB 3556 bytes
font_01_sfnt_off0002547e.bin
40c4dd0e17753a20a38d89307a6cc719b5d6a067920c06372d1bb79643d13424		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2547E 14488 bytes
font_02_sfnt_off000281dd.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x281DD 14468 bytes
font_03_sfnt_off0002ac8f.bin
3d4820699cfed9adc966c5eae19c23ac88f869b5ad4ddb62988d57b49cd91f4b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AC8F 7092 bytes
font_04_sfnt_off0002c10e.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C10E 6084 bytes
font_05_sfnt_off0002d0a3.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D0A3 3752 bytes

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