Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae306a974a0a74b5…

MALICIOUS

PDF

48.0 KB Created: 2020-08-21 23:10:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5c71ac1aba7093157d08984b490c3f27 SHA-1: 74df166f883fde10c42439ef138ce8cb4962f9f5 SHA-256: ae306a974a0a74b5f9ffba18f49e9a5611b6d102491e8b3ee17d142ad35a9fc2
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'undescended testes guidelines' and the malicious URL, suggesting a lure to a potentially harmful site. The presence of numerous external PDF links also indicates a link farm strategy.

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.com/pify?keyword=undescended+testes+guidelines
    • http://dosivirip.familytimefishingcharters.com/uploads/1/3/1/4/131409090/d094acdebcce9.pdf
    • http://files.outofthegraywa.org/uploads/1/3/0/7/130775822/f0abb910996796.pdf
    • http://files.marcyearthscience.com/uploads/1/3/0/7/130738970/sefetexavevogin.pdf
    • https://cdn.shopify.com/s/files/1/0435/5702/7992/files/11526675581.pdf
    • https://cdn.shopify.com/s/files/1/0428/2561/3468/files/38016474817.pdf
    • https://cdn.shopify.com/s/files/1/0429/0550/1852/files/ansys_manual_anna_university.pdf
    • https://cdn.shopify.com/s/files/1/0437/7326/4030/files/blood_group_test_report_format.pdf
    • https://cdn.shopify.com/s/files/1/0438/3503/1712/files/fuduravejilalabexilewej.pdf
    • https://cdn.shopify.com/s/files/1/0435/9254/8511/files/sikobalenera.pdf
    • https://cdn.shopify.com/s/files/1/0430/6554/0759/files/gosazawifeko.pdf
    • https://cdn.shopify.com/s/files/1/0432/0028/2783/files/snackbar_error_android_studio.pdf
    • https://cdn.shopify.com/s/files/1/0431/3382/9271/files/tamilrockers_2019_telugu_movies_in_madrasrockers.pdf
    • https://cdn.shopify.com/s/files/1/0432/2351/5294/files/bacterial_growth_and_reproduction.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_off00006fb9.bin
f3de856e289b79518d17b6e7e5bac96681749742426e63b212c9c3bf1b62e65f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FB9 4564 bytes
font_01_sfnt_off00007f4f.bin
e7151888b6591c0765c002733ff3588aad4a4c971970818a8ad95d7518cc79a7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F4F 11608 bytes
font_02_sfnt_off0000a512.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA512 4324 bytes

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