Malicious PDF — malware analysis report

Static analysis result for SHA-256 3284b46b7208bca4…

MALICIOUS

PDF

38.3 KB Created: 2020-08-28 05:09:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d0c29725cd7480fb1c9778c1c4b1803 SHA-1: a785725aac919a42cac0badf4162af5ac85ee51c SHA-256: 3284b46b7208bca46dc4c3c6ef39e7e955d59f630e36d61aca241765edf59e64
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one heuristic identifying it as a PDF link farm. The primary malicious URL, https://ttraff.com/pify?keyword=titanite+chunks+dark+souls+2, is flagged as a known malicious redirector. The document body is heavily obfuscated but contains references to both the malicious URL and numerous other PDF links hosted on Shopify. This suggests a campaign focused on SEO manipulation or redirecting users to malicious content.

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=titanite+chunks+dark+souls+2
    • http://files.mrsmackenzie.com/uploads/1/3/0/7/130776277/2928d7.pdf
    • http://files.tracykeencreative.com/uploads/1/3/1/6/131606027/nuzisunolaweba-wamotugabezirit-bidiwopazukefe.pdf
    • http://files.drmikecounseling.com/uploads/1/3/1/6/131637714/voxaduz_nimatusulaw.pdf
    • https://cdn.shopify.com/s/files/1/0434/5797/0328/files/amebiasis_treatment_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0440/6660/3158/files/semapuwibodaj.pdf
    • https://cdn.shopify.com/s/files/1/0431/5018/0512/files/ionic_bonds_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0449/4236/0744/files/android_21_xenoverse_2_mod.pdf
    • https://cdn.shopify.com/s/files/1/0440/8197/1365/files/nonoguvilez.pdf
    • https://cdn.shopify.com/s/files/1/0434/4525/6344/files/jaxudi.pdf
    • https://cdn.shopify.com/s/files/1/0431/2619/4336/files/87020207685.pdf
    • https://cdn.shopify.com/s/files/1/0436/7079/8489/files/33188602909.pdf
    • https://cdn.shopify.com/s/files/1/0433/0940/0214/files/32020972411.pdf
    • https://cdn.shopify.com/s/files/1/0439/1678/7880/files/tuveparagumowefiwupopu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mejamuzeditika.pdf
    • https://cdn.shopify.com/s/files/1/0430/7533/8389/files/lesorawupu.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_off00005775.bin
7932816bcc777ecd5a796e475b34d4e222838300fe4423bdfbefaee698c417cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5775 5172 bytes
font_01_sfnt_off000068f4.bin
ad91e764f028180b86283dc57901a9afe5d4b3bc83853bee1d356d76441eb3df		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68F4 10352 bytes

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