Malicious PDF — malware analysis report

Static analysis result for SHA-256 9010881b4485fbd9…

MALICIOUS

PDF

35.3 KB Created: 2020-09-02 01:11:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5f8d167460d79c74b49e1059aaeb5e37 SHA-1: e9bdec53f3d8136615c90bbd4eeab905c8c37840 SHA-256: 9010881b4485fbd94cd4a26c9012ed7f8f15234a4ce488d347b43e4efc152c4f
120 Risk Score

Malware Insights

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

The PDF file contains a link farm designed to direct users to a malicious redirector. The primary malicious URL identified is https://ttraff.cc/wix?keyword=beden+dili+allan+pease+pdf. The document body itself is heavily obfuscated and contains numerous benign-looking PDF links, likely to mask the malicious intent. No scripts were extracted from this sample.

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.cc/wix?keyword=beden+dili+allan+pease+pdf
    • https://cdn.shopify.com/s/files/1/0445/6172/7647/files/exalted_cheat_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0431/4388/9058/files/woxubesisisenufuket.pdf
    • https://cdn.shopify.com/s/files/1/0430/5806/9655/files/xekukitavex.pdf
    • https://static.usrfiles.com/ugd/60e703_2a3d8d84b0cc46c2845167627039fd01.pdf
    • https://static.usrfiles.com/ugd/b8c837_440639ac48aa415889b8eed6d5e7fc38.pdf
    • https://static.usrfiles.com/ugd/ea78e0_d91af08ab8b94a2f936e6b6c9885781a.pdf
    • https://cdn.shopify.com/s/files/1/0454/2988/3048/files/physical_science_grade_11_exam_papers.pdf
    • https://cdn.shopify.com/s/files/1/0431/2186/8960/files/44765655307.pdf
    • https://static.usrfiles.com/ugd/b8c837_4a625bdb0bbc4245b356fa1e0d79689b.pdf
    • https://static.usrfiles.com/ugd/b8c837_179928909eac40b2b6fdd4043b1e727b.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_off0000463e.bin
6e512180f5cbbb2da676cd6ace584def9404211e952f831e59b56f8b965d13c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x463E 4988 bytes
font_01_sfnt_off00005751.bin
22a99e0cee1fbeca1c6cc32ef0e9e6dafded0e4b1324052bc3ac39191d090091		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5751 13424 bytes

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