Malicious PDF — malware analysis report

Static analysis result for SHA-256 397da6046698a418…

MALICIOUS

PDF

78.2 KB Created: 2020-08-30 05:00:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ba711dd591c2e3c9bb717efd33d4a175 SHA-1: c2d25c1dda99d064481695a044eb549ddcb08c25 SHA-256: 397da6046698a418b24dcd8cdbdfe12838db799b8c3c5ef1a964bd9fe875ce13
128 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing for a PDF link farm and a malicious redirector. The primary malicious URL identified is `https://ttraff.com/wix?keyword=patterns+of+enterprise+application+architecture`, which is likely used to direct users to a malicious site. The document body, though heavily obfuscated, contains references to urgency lures, further supporting a phishing or social engineering attack pattern. No scripts were extracted, limiting the analysis of direct payload execution.

Heuristics 4

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=patterns+of+enterprise+application+architecture
    • https://static.usrfiles.com/ugd/b8c837_cfe2ad1adfcd4f928cdced644920cae8.pdf
    • https://static.usrfiles.com/ugd/76de1a_5756f592504840e9a5828c109b696056.pdf
    • https://static.usrfiles.com/ugd/0fdb6d_877f888bba1146e8bd7eda56334d868d.pdf
    • https://static.usrfiles.com/ugd/a4e402_8fb039fe04644f4983a91d73bcd981e1.pdf
    • https://static.usrfiles.com/ugd/b8c837_1797a17a8321472e953d95c1a1e07588.pdf
    • https://static.usrfiles.com/ugd/0a052f_3dac6d8d69ca4b56bfa309874bf26c52.pdf
    • https://static.usrfiles.com/ugd/c7ef1a_2cc3635b0bad4ddaba177f7593500477.pdf
    • https://static.usrfiles.com/ugd/516793_8efd2e67efb946f097eee700668000bf.pdf
    • https://static.usrfiles.com/ugd/b8c837_a88913aca34a46ac801ddf5c6929cbb0.pdf
    • https://static.usrfiles.com/ugd/b8c837_41b48aa537b34ad0b8e4dbd666fb291f.pdf
    • https://static.usrfiles.com/ugd/3ceeb9_f7dd851427344aacb11acb0508e493d4.pdf
    • https://static.usrfiles.com/ugd/b8c837_b7ab7b7970844811aeeabe7b5dd323dc.pdf
    • https://static.usrfiles.com/ugd/b8c837_25543622b9ae4d07bb1ea74336628cf4.pdf
    • https://static.usrfiles.com/ugd/b8c837_ce1ce81e67c94c0eb1b774aeb30db866.pdf
    • https://cdn.shopify.com/s/files/1/0429/5491/6003/files/45869992224.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tikifulodu.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_off0000e778.bin
f20bd0c768a569bf421c4f4d27ae43d886cc09da3e3bf06d1c7a21e41be11536		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE778 4984 bytes
font_01_sfnt_off0000f85b.bin
098c0b437db8ddad54d57c8342635d1710c76a5474b229bb0de3368ec0aaf8a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF85B 10768 bytes
font_02_sfnt_off00011d1d.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11D1D 4324 bytes

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