Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c3e701f4e8ba292…

MALICIOUS

PDF

48.7 KB Created: 2020-08-31 20:48:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 742b37c09229c107ef9a9886e8d8974b SHA-1: 2018ab04a91f90b35a32c8118282ad351850ad1a SHA-256: 8c3e701f4e8ba29203c0db3df8411a7450898745fd69fef0cc804a68e4e71a9b
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure related to a 'Pathfinder alchemist grenadier guide'. The heuristic firings indicate the PDF is designed to redirect users to malicious infrastructure, likely for phishing or malware delivery. No scripts were extracted, limiting the analysis of direct payload execution.

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/wix?keyword=pathfinder+alchemist+grenadier+guide
    • https://cdn.shopify.com/s/files/1/0438/6842/2309/files/57856344049.pdf
    • https://cdn.shopify.com/s/files/1/0429/2391/7478/files/74629196537.pdf
    • https://cdn.shopify.com/s/files/1/0429/1071/1971/files/wodedinixuz.pdf
    • https://cdn.shopify.com/s/files/1/0430/5109/0071/files/delutuxituwimamawi.pdf
    • https://cdn.shopify.com/s/files/1/0431/5562/0006/files/84201830477.pdf
    • https://static.usrfiles.com/ugd/2e16aa_32114484c9b646379c6d666dc690d91e.pdf
    • https://static.usrfiles.com/ugd/cfbfd2_df0df2827be349519593b3e7a509d149.pdf
    • https://static.usrfiles.com/ugd/5b5da7_8afda67bc0b64935a9b044e3eb6a57da.pdf
    • https://static.usrfiles.com/ugd/d55797_f15e867032dc4ee1a9eaeb9e2abd5519.pdf
    • https://static.usrfiles.com/ugd/73f3b0_53dd562e424741269f4ac1c8629e9069.pdf
    • https://static.usrfiles.com/ugd/b8c837_0ee06d60f0284a798a6b926a51b6b185.pdf
    • https://static.usrfiles.com/ugd/b8c837_20120a4b11384d389bb93c1fe5809df7.pdf
    • https://static.usrfiles.com/ugd/87b9a8_1a1c50749a834c00b3c76b3a17304cb4.pdf
    • https://static.usrfiles.com/ugd/4ae4db_24d806903e61491a8880ce0d7d6414fa.pdf
    • https://static.usrfiles.com/ugd/eb5a6a_7b4d76ffe47643e9ad245872d6e2c897.pdf
    • https://static.usrfiles.com/ugd/6cfc61_3254f3b9e959489f91be7c62f1c2130b.pdf
    • https://static.usrfiles.com/ugd/97493d_247480588c264bd38878e12395f5ecb9.pdf
    • https://static.usrfiles.com/ugd/39cb9d_8ac1f8e5242f4f7e87204f89cc2edc88.pdf
    • https://static.usrfiles.com/ugd/b8c837_bb29977c52a348d393c4cc9969d8b762.pdf
    • https://static.usrfiles.com/ugd/158fb9_a7f09469b75745b3b8459861d59db7fe.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_off00006b2d.bin
f471aa723fb09619aaee9b1fa283f00fce7fbe019c7d3d7629626d5da75e4eec
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B2D 5208 bytes
font_01_sfnt_off00007caa.bin
e371bc93085f7fdf8ff34d28ea4e2ed243f3f10ecf67c2a9f9bbabea0d09ffee
pdf-font-stream PDF embedded font (sfnt) at offset 0x7CAA 13576 bytes
font_02_sfnt_off0000a779.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0xA779 4324 bytes