Malicious PDF — malware analysis report

Static analysis result for SHA-256 339297d75c58ffe6…

MALICIOUS

PDF

79.6 KB Created: 2020-09-02 14:19:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d35df0f31d7978dcf0916a830ef3a98e SHA-1: e43044b3e9074af48964dd8db3bf3529f5496b9c SHA-256: 339297d75c58ffe6a9dd4962d973cd8695a1e3801ab92a1c17a99e369f8f303b
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.003 Windows Command Shell

The PDF contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating a link to a known malicious redirector. Additionally, a PDF_SEO_LINK_FARM heuristic suggests a large number of external links, with one pointing to a redirector. The document also includes a SE_CLIPBOARD_COMMAND_LURE heuristic, instructing the user to copy/paste content into a shell, which is a common social engineering tactic to execute malicious commands. The embedded URL https://ttraff.link/wix?keyword=inflammatory+bowel+disease+pdf+adalah is the primary indicator of malicious intent.

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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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.link/wix?keyword=inflammatory+bowel+disease+pdf+adalah
    • https://static.usrfiles.com/ugd/9cfd0a_18e029cc9679456297192404c954b83e.pdf
    • https://static.usrfiles.com/ugd/2e4eb4_a6620f9ff1f3483d9f04bc707ac93b7b.pdf
    • https://static.usrfiles.com/ugd/a2ebd8_37f4a55d5b5241069aa1de571bd83472.pdf
    • https://static.usrfiles.com/ugd/4d935e_5c8977c78b274b5e8cf2247a71420129.pdf
    • https://static.usrfiles.com/ugd/b8c837_236ed05e87634ba0a6d9a029a7542182.pdf
    • https://static.usrfiles.com/ugd/2074c9_f2d5b7644b034a2c93a9742e1a3d86a9.pdf
    • https://cdn.shopify.com/s/files/1/0427/8714/3839/files/godokivin.pdf
    • https://cdn.shopify.com/s/files/1/0433/1572/4456/files/punctuation_rules.pdf
    • https://cdn.shopify.com/s/files/1/0432/9432/6949/files/printable_june_2016_calendar_template.pdf
    • https://static.usrfiles.com/ugd/145364_e03bdbfad6af4e519014ad888718d80e.pdf
    • https://static.usrfiles.com/ugd/b48b60_8b1c45e16a2d44508d94a60ac4eb232c.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_off0000f55c.bin
c2fbeffdda54f38709700898d0ca292f4eadd849d066a17bc2a0cd201666e926		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF55C 5552 bytes
font_01_sfnt_off00010821.bin
eae76b858fdce907fd300a706e92646dcff13482ae1c9bb04c901f4d84cba981		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10821 13240 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.