Malicious PDF — malware analysis report

Static analysis result for SHA-256 cedae42064de6608…

MALICIOUS

PDF

45.3 KB Created: 2020-07-30 11:54:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1d9fa9f0e4ab1401cf524b7e808798ac SHA-1: 3351fc17828573258e96096e9ee73a4cc462542c SHA-256: cedae42064de660895dafea4bafc7fc6a348c0cd416856e38eeda96b1124824b
160 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on 'cdn.shopify.com'. The presence of a 'LOLBin run command' heuristic suggests the document may contain instructions for executing scripts or commands, likely to facilitate the redirection. The document body is heavily obfuscated and unreadable, providing no further context.

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.
  • Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMAND
    Document contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
  • 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=oxigenoterapia+veterinaria+pdf
    • http://files.domaci-inc.org/uploads/1/3/0/7/130740504/60e07f6d80b5.pdf
    • http://files.roxzumba.com/uploads/1/3/1/3/131380337/tumapedan.pdf
    • http://files.stonewallcurling.com/uploads/1/3/0/9/130969139/tegos.pdf
    • http://files.aspenergonomicswellnesssolution.com/uploads/1/3/1/3/131384058/abd789ad8141804.pdf
    • http://files.italiandentalstyle.com/uploads/1/3/1/3/131379506/0bfe1f228b.pdf
    • http://files.aspenergonomicswell
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/74832969368.pdf
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/35133455348.pdf
    • https://cdn.shopify.com/s/files/1/0434/3093/6733/files/70558992189.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/40429789840.pdf
    • https://cdn.shopify.com/s/files/1/0430/5167/9893/files/48536733816.pdf
    • https://cdn.shopify.com/s/files/1/0431/5666/8573/files/94892334588.pdf
    • https://cdn.shopify.com/s/files/1/0428/6388/6495/files/80294606666.pdf
    • https://cdn.shopify.com/s/files/1/0430/8713/4882/files/viropixujarizibukeguvujub.pdf
    • https://cdn.shopify.com/s/files/1/0431/1865/7697/files/bovage.pdf
    • https://cdn.shopify.com/s/files/1/0428/3708/2271/files/74179980432.pdf
    • https://cdn.shopify.com/s/files/1/0428/3655/7987/files/vuzufewufideg.pdf
    • https://cdn.shopify.com/s/files/1/0438/5413/5456/files/julanu.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_off00007413.bin
2e2c00deb8295424fda45bcea9019505cc16d3ed9c84f8564752b8eaa35e723b
pdf-font-stream PDF embedded font (sfnt) at offset 0x7413 4944 bytes
font_01_sfnt_off000084fd.bin
193c7f718724ef35874fd02fa40fa9e42039a07c511f5da9ddb9bc44de4b1296
pdf-font-stream PDF embedded font (sfnt) at offset 0x84FD 10244 bytes