Malicious PDF — malware analysis report

Static analysis result for SHA-256 e224eb91f43fff25…

MALICIOUS

PDF

65.9 KB Created: 2020-08-27 20:29:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6a2c4fafe7aa5cb09fa292a3e26bce2c SHA-1: 09ca4d979352950fae89cc7e58f7da97e277e55d SHA-256: e224eb91f43fff25d3888efce3a5b8f1a7d1689475ce2b8cf5e9e36b86389388
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF file contains a significant number of embedded links, identified as a PDF link farm. One of the primary links directs to a known malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, contains the title 'Mini rex color guide' and the malicious URL, suggesting a lure to a malicious site. The heuristics indicate the PDF is designed to redirect users to potentially harmful content.

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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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 https://ttraff.ru/pify?keyword=mini+rex+color+guide
    • http://files.spikemclarrity.com/uploads/1/3/1/3/131384081/24d7f13.pdf
    • http://files.twosevenbaseballcamps.com/uploads/1/3/1/8/131857270/movuzatodof_jukelakol.pdf
    • http://lukibuwe.lodgeyggdrasill.com/uploads/1/3/1/4/131453574/7f68719.pdf
    • http://luwedabi.ryaninglisguitarlessons.com/uploads/1/3/1/8/131857114/9394435.pdf
    • http://zokugax.caralarmandradio.com/uploads/1/3/2/7/132741555/6728647.pdf
    • https://cdn.shopify.com/s/files/1/0432/5244/9444/files/66506553683.pdf
    • https://cdn.shopify.com/s/files/1/0428/5625/1555/files/nakalalusitebinutowokureg.pdf
    • https://cdn.shopify.com/s/files/1/0463/2674/3201/files/leporavebusirasezokofumon.pdf
    • https://cdn.shopify.com/s/files/1/0429/8863/4266/files/59659087227.pdf
    • https://cdn.shopify.com/s/files/1/0437/3502/3770/files/ought_to_and_should_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0430/0803/2922/files/buporimukujiza.pdf
    • https://cdn.shopify.com/s/files/1/0463/0698/4098/files/xixolosituxeg.pdf
    • https://cdn.shopify.com/s/files/1/0433/0346/9221/files/redap.pdf
    • https://cdn.shopify.com/s/files/1/0437/5999/2990/files/echo_srm_2100.pdf
    • https://cdn.shopify.com/s/files/1/0429/2821/0073/files/56835537155.pdf
    • https://cdn.shopify.com/s/files/1/0434/4895/9141/files/vejuveto.pdf
    • https://cdn.shopify.com/s/files/1/0429/5104/9370/files/fizelit.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b7a8.bin
3c01118b90e87ce91b7572b7867f7d91a026a7a69cca2b2da6ca000edebbdb6a
pdf-font-stream PDF embedded font (sfnt) at offset 0xB7A8 4596 bytes
font_01_sfnt_off0000c745.bin
abf3f25e5ff5e3686121a3b430c684a72871fa5f0dd4540e222c9db41b3cd20b
pdf-font-stream PDF embedded font (sfnt) at offset 0xC745 11000 bytes
font_02_sfnt_off0000ec56.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230
pdf-font-stream PDF embedded font (sfnt) at offset 0xEC56 4324 bytes