Malicious PDF — malware analysis report

Static analysis result for SHA-256 edaa779be5aa8318…

MALICIOUS

PDF

346.6 KB Created: 2015-08-19 11:24:59 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 483cf1fdbad966921ccba20907b53113 SHA-1: 6b34124d996f8a99df96df4357a8c653c2c3df85 SHA-256: edaa779be5aa8318d56fca3378a0e055310aba052dffc4f59b39be215e58a8da
68 Risk Score

Malware Insights

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

The PDF contains an embedded JavaScript stream and a critical heuristic firing indicates a malicious redirector link. The primary IOC is the malicious URL, which is likely used to lure the user into downloading malware or providing sensitive information. No scripts were extracted from this sample, but the presence of embedded JS and the malicious redirector strongly suggest a phishing or malware delivery attempt.

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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+%D0%B3%D0%B5%D0%B9%D0%BC+%D1%85%D0%B0%D0%BA%D0%B5%D1%80+%D0%BD%D0%B0+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC+%D0%BD%D0%B0+%D0%B0%D0%BD%D0%B4%D1%80%D0%BE%D0%B8%D0%B4&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4496/4496744_otvetuy_na_biletuy_stropalschika_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626442_rezultatuy_gia_po_matematike_2015_volgograd.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4496/4496748_karta_belarusi_2015_dlya_navitel_android_skachat_besplatno.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00052329.bin
0a325eb6e44028e0ec9fda4a27dbb89e7805eb128b4439aaca3b4fc415649877		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52329 8512 bytes
font_01_sfnt_off00053be3.bin
39cb2b95312e0934780f57ec736e3beeaecdc9a16c3b8de982a4b90d7b112c98		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53BE3 14656 bytes

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