Malicious PDF — malware analysis report

Static analysis result for SHA-256 36d57728fa307726…

MALICIOUS

PDF

47.6 KB Created: 2020-08-23 12:58:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 439039e0dc5e5d22e816f947c19426a4 SHA-1: 029f8bf7f6b18bafea83c473ed1e343cbd50fbf1 SHA-256: 36d57728fa307726d2e3ede1d8b88375a848dfcb9c1780036cd5330b959b4440
128 Risk Score

Malware Insights

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

The PDF file contains a clear call-to-action disguised as a download link for "Janapada video songs mp4". This link, when clicked, redirects to a known malicious redirector at ttraff.com. The document also exhibits characteristics of a link farm, with numerous embedded links, many pointing to Shopify domains, likely to improve search engine ranking for the malicious lure. The presence of a visual download button further supports the social engineering aspect of this attack.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=janapada+video+songs++mp4
    • http://files.gardenspotrentals.net/uploads/1/3/2/6/132681938/finefenusavat.pdf
    • https://cdn.shopify.com/s/files/1/0428/3321/5644/files/37623946865.pdf
    • https://cdn.shopify.com/s/files/1/0431/9671/1073/files/accounting_principles_11th_edition_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0429/3384/6175/files/dofunipelupifo.pdf
    • https://cdn.shopify.com/s/files/1/0432/2312/2084/files/resekudifufetawefafa.pdf
    • https://cdn.shopify.com/s/files/1/0441/2165/3400/files/bafiwadipujumetudu.pdf
    • https://cdn.shopify.com/s/files/1/0439/0410/6651/files/lojikunazerato.pdf
    • https://cdn.shopify.com/s/files/1/0430/4253/7629/files/29128727208.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/niriliruvurufuwupaku.pdf
    • https://cdn.shopify.com/s/files/1/0445/7473/6543/files/apache_hive_definitive_guide.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_off00006480.bin
0ced61fb68bd3aa1b453d6b1b2b3ad8da657b9effd07f02d34f55c9d682689e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6480 5288 bytes
font_01_sfnt_off00007679.bin
60146c9163d543c6d89bbfc081a66ed6cd6a556dbd543bd5ca90c6eeba6d0b15		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7679 2172 bytes
font_02_sfnt_off000080d8.bin
fbb2892d3efd8e6df779dd9d6fcfcdb49904486da458b96f2bd74a591a53adc3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80D8 15520 bytes

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