Malicious PDF — malware analysis report

Static analysis result for SHA-256 5951c074819eb810…

MALICIOUS

PDF

41.2 KB Created: 2020-08-03 06:39:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 79cc815295d6ad75e222894cdd754b70 SHA-1: c12ce911407d8de8c90d5f5d266e1611429cfab8 SHA-256: 5951c074819eb8105e38cf70aa4324d2441272eb33bc7564d28d10e7abf95298
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=toro+recycler+22+owners+manual'. Additionally, it exhibits a PDF link farm heuristic, with numerous links to PDFs hosted on Shopify. The document body, though heavily obfuscated, contains the string 'Toro recycler 22 owners manual', likely a lure to encourage clicking the malicious link. The presence of urgency language further supports a phishing or scam attempt.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.ru/pify?keyword=toro+recycler+22+owners+manual
    • http://files.eskernorth.com/uploads/1/3/1/3/131383330/jarazibifa.pdf
    • http://files.bollingercountyhealth.org/uploads/1/3/0/7/130775055/7deca2fb63c7c.pdf
    • http://files.larnelle.com/uploads/1/3/2/7/132740564/76d9c8173.pdf
    • https://cdn.shopify.com/s/files/1/0435/8212/8283/files/jesanen.pdf
    • https://cdn.shopify.com/s/files/1/0431/0423/9783/files/81634311279.pdf
    • https://cdn.shopify.com/s/files/1/0429/5570/2425/files/nasazofajepi.pdf
    • https://cdn.shopify.com/s/files/1/0434/4211/0631/files/puxejuxirosal.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/66689816557.pdf
    • https://cdn.shopify.com/s/files/1/0429/4089/1292/files/atwood_mobile_products.pdf
    • https://cdn.shopify.com/s/files/1/0434/2353/1158/files/22640411125.pdf
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/tolebodug.pdf
    • https://cdn.shopify.com/s/files/1/0429/5517/8150/files/5518851812.pdf
    • https://cdn.shopify.com/s/files/1/0427/6686/0455/files/pewuwozetit.pdf
    • https://cdn.shopify.com/s/files/1/0427/7728/0671/files/53713180926.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zutazalurofesavasa.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/surorut.pdf
    • https://cdn.shopify.com/s/files/1/0431/0060/2525/files/wimikewazemisojedo.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_off000064d6.bin
a73ad96b4e68b457c6162d073975de0511184b1f182bf1afea71f9d8a7af2105
pdf-font-stream PDF embedded font (sfnt) at offset 0x64D6 5220 bytes
font_01_sfnt_off00007699.bin
46e4eb305bdec4b97477215ce3971d04eb37021bc7ce795acdcc2dcefc72ff75
pdf-font-stream PDF embedded font (sfnt) at offset 0x7699 9768 bytes