Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f472262c43b6315…

MALICIOUS

PDF

38.9 KB Created: 2020-08-02 19:24:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4e9ec8e30eb3dbebf3d33f8ceaafbffc SHA-1: 5147d5ec24e0af727d8062e5624cee39ee05675e SHA-256: 1f472262c43b6315bd4a767fcc7aa31f012dcc51876ee6dcf14e5a9212b7bf5e
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'https://ttraff.cc/pify?keyword=samsung+s4+manuals'. This suggests a phishing or scam attempt, using the guise of providing manuals to trick users into visiting the malicious URL. No scripts were extracted, limiting the analysis of further payload delivery mechanisms.

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/pify?keyword=samsung+s4+manuals
    • http://files.newyorkhomescholars.com/uploads/1/3/1/1/131164557/makik.pdf
    • http://files.lovegodblesspeople.com/uploads/1/3/1/1/131164387/susaturitarilo-lijogunojud-tolimuwoxomiro-tidiwekeb.pdf
    • http://files.deverkindergarten.com/uploads/1/3/1/3/131398008/3716752.pdf
    • http://files.tyburke.net/uploads/1/3/0/7/130740563/zenipesaguzotifawor.pdf
    • http://files.jontigert.com/uploads/1/3/0/8/130813528/jofikejur.pdf
    • https://cdn.shopify.com/s/files/1/0440/9245/7112/files/50541959829.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85286147205.pdf
    • https://cdn.shopify.com/s/files/1/0437/7988/3170/files/64834275767.pdf
    • https://cdn.shopify.com/s/files/1/0428/2492/5351/files/sidolivanov.pdf
    • https://cdn.shopify.com/s/files/1/0435/4156/1503/files/kalagif.pdf
    • https://cdn.shopify.com/s/files/1/0431/0879/4530/files/14779471486.pdf
    • https://cdn.shopify.com/s/files/1/0434/0921/1549/files/class_of_3000_backgrounds.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53446206952.pdf
    • https://cdn.shopify.com/s/files/1/0433/7988/4186/files/tixalawerolutewavogowu.pdf
    • https://cdn.shopify.com/s/files/1/0431/4441/3341/files/55143248636.pdf
    • https://cdn.shopify.com/s/files/1/0434/7405/9430/files/29363056338.pdf
    • https://cdn.shopify.com/s/files/1/0434/3706/4348/files/3519760339.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_off00005a7a.bin
6a9301b7ea725e4a374ba68e3e4a3d2dd6e54e78bc8a001a2050cfc24ec9ef4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A7A 5100 bytes
font_01_sfnt_off00006bc9.bin
06e3ddb1c16aff956591d61f9c9f913875e01562449d25364231db4f90e8e1f9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BC9 10336 bytes

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