Malicious PDF — malware analysis report

Static analysis result for SHA-256 fbe16721e6a0e3dc…

MALICIOUS

PDF

40.9 KB Created: 2020-08-26 12:42:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7fb8c3dc7626a1770345d9f24dbcbedd SHA-1: 42665736c016a88f664a77d8642d4d1b30f83ce1 SHA-256: fbe16721e6a0e3dcc0af1c56a2a614f3d9ea4c3c98e62f4899c810614fbeced6
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=intel+82567lm+3+driver'. The document body, though heavily obfuscated, contains references to 'Intel 82567lm 3 driver' and numerous URLs, many hosted on Shopify, suggesting a link farm or SEO poisoning tactic to attract users searching for specific drivers. The primary malicious URL is likely used to redirect users to a second-stage malicious site.

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=intel+82567lm+3+driver
    • http://files.trevorpollard.com/uploads/1/3/1/3/131398423/9616329.pdf
    • http://lazurima.dnp.be/uploads/1/3/1/6/131636665/f7acb2186995.pdf
    • https://cdn.shopify.com/s/files/1/0431/3353/4357/files/gadenemapofoxefogonatim.pdf
    • https://cdn.shopify.com/s/files/1/0439/0980/8280/files/11564760972.pdf
    • https://cdn.shopify.com/s/files/1/0434/7147/0742/files/46449777848.pdf
    • https://cdn.shopify.com/s/files/1/0432/3157/6231/files/autodwg_dwg_to_converter_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/0733/6857/files/adobe_flash_player_10_activex.pdf
    • https://cdn.shopify.com/s/files/1/0429/1241/5897/files/acute_traumatic_spinal_cord_injury_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0431/4149/6986/files/54916914037.pdf
    • https://cdn.shopify.com/s/files/1/0432/2174/5822/files/street_fighter_4_full_version_apk.pdf
    • https://cdn.shopify.com/s/files/1/0432/9105/0137/files/angielski_w_tumaczeniach_1.pdf
    • https://cdn.shopify.com/s/files/1/0430/0292/1111/files/36045362865.pdf
    • https://cdn.shopify.com/s/files/1/0436/1197/9939/files/watirivalodisesuwejuxa.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000061eb.bin
4f10637de24017f880d63a791c781b3e79b646f771b71cfa85bedddab1409fa9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61EB 5428 bytes
font_01_sfnt_off0000745f.bin
3e8f9aaf11ae4c8db7d77c7b4168d961ba3a2b5365137e5e2457bb2e0d783fcf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x745F 10196 bytes

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