Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe2a55dd2cbc0942…

MALICIOUS

PDF

53.4 KB Created: 2020-07-30 09:17:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 06e5bbeba37d2bff4be95109ae0408e2 SHA-1: f788b9f0404bbba7ff00de6d6007a43fd106aef9 SHA-256: fe2a55dd2cbc09423d6e5031c3bf4e94384226e13e9db561270aa013c771c6e2
128 Risk Score

Malware Insights

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

The PDF contains multiple links, with one pointing to a known malicious redirector. It also exhibits characteristics of a link farm, suggesting an attempt to distribute malicious content or redirect users to phishing sites. The presence of a link to 'ttraff.ru' is a strong indicator of malicious intent, likely to lead the user to a compromised or malicious page. The document body, though heavily obfuscated, contains metadata related to PDF generation, indicating it was likely programmatically created to host these links.

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=asfixia+perinatal+tratamiento+pdf
    • http://files.clear-heater.co.uk/uploads/1/3/1/4/131406751/sejakagetaj.pdf
    • http://files.medfieldheightspto.com/uploads/1/3/1/0/131070190/joridesaz.pdf
    • http://files.mooncityeventcenter.com/uploads/1/3/1/4/131453253/reguwapilixa.pdf
    • http://files.theimperfectmd.com/uploads/1/3/1/4/131452741/romonebuxamur.pdf
    • http://files.daniellerosephotography.com/uploads/1/3/1/4/131437477/nivar-koler.pdf
    • https://cdn.shopify.com/s/files/1/0437/7634/4225/files/30993744887.pdf
    • https://cdn.shopify.com/s/files/1/0431/5525/9560/files/vemukotononimavig.pdf
    • https://cdn.shopify.com/s/files/1/0428/0814/8127/files/sugonejidopalil.pdf
    • https://cdn.shopify.com/s/files/1/0436/7073/2950/files/falerixelaxeveziwo.pdf
    • https://cdn.shopify.com/s/files/1/0431/3595/9191/files/nusigovetute.pdf
    • https://cdn.shopify.com/s/files/1/0435/1868/9432/files/61353379459.pdf
    • https://cdn.shopify.com/s/files/1/0430/9948/8423/files/72876137950.pdf
    • https://cdn.shopify.com/s/files/1/0430/9444/2137/files/tonojevubezaxafawiwikujo.pdf
    • https://cdn.shopify.com/s/files/1/0430/9617/8845/files/9241730517.pdf
    • https://cdn.shopify.com/s/files/1/0436/0149/4179/files/58461577200.pdf
    • https://cdn.shopify.com/s/files/1/0431/9812/0094/files/wefikasovisatisilesa.pdf
    • https://cdn.shopify.com/s/files/1/0432/2692/3172/files/xuxebuzativoxesubijixal.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_off000093e0.bin
0f096fac54c5ee64dfd32fb487666f0dc0e36170c78a8bffbef916878351a5d8
pdf-font-stream PDF embedded font (sfnt) at offset 0x93E0 5032 bytes
font_01_sfnt_off0000a4dd.bin
44b4b7bb6ec280b1fdc34dec0d53ae3633553b6553634817a53a125cb63d9c9e
pdf-font-stream PDF embedded font (sfnt) at offset 0xA4DD 10408 bytes