Malicious PDF — malware analysis report

Static analysis result for SHA-256 a62589b4e1099ad6…

MALICIOUS

PDF

45.4 KB Created: 2020-08-26 03:12:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 93fac4deb8683a316e0bc3bd127bb91f SHA-1: d4fc6e5a26bf3ba277744923d1a102d662ec8526 SHA-256: a62589b4e1099ad68bb1faeb52fc9cab494cfee1969e3072c5d87de3d5117ed1
148 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it's a malicious redirector and part of a link farm, with a lure suggesting an invoice or payment context. The embedded URL `https://ttraff.ru/pify?keyword=descargar+talones+fone` is flagged as malicious. The document body, though heavily obfuscated, contains this URL and text related to downloading talons, reinforcing the lure. The presence of numerous external links, many hosted on `cdn.shopify.com`, suggests a broad distribution effort.

Heuristics 5

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=descargar+talones+fone
    • http://topog.boostfitness.co.uk/uploads/1/3/1/4/131406798/xereladatutifuvixaf.pdf
    • http://mipefed.bethadice.com/uploads/1/3/0/8/130814124/eca5dcdba3830.pdf
    • http://kulaju.ballardbanjers.com/uploads/1/3/1/3/131398540/634ed2.pdf
    • https://cdn.shopify.com/s/files/1/0440/3838/9925/files/23231820858.pdf
    • https://cdn.shopify.com/s/files/1/0449/8666/3070/files/forever_aloe_msm_gel.pdf
    • https://cdn.shopify.com/s/files/1/0434/0236/3047/files/baaghi_movie_full_3gp.pdf
    • https://cdn.shopify.com/s/files/1/0439/0594/1672/files/64437790819.pdf
    • https://cdn.shopify.com/s/files/1/0447/9811/6006/files/data_analytics_laboratory_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/9243/5359/files/acrobat_reader_combine.pdf
    • https://cdn.shopify.com/s/files/1/0432/1456/9640/files/89251058963.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_off00007457.bin
8661db7475407f7fcdce6fbe50889355027782455bc41ab97e4e7698428d482b
pdf-font-stream PDF embedded font (sfnt) at offset 0x7457 5048 bytes
font_01_sfnt_off00008592.bin
d4a8d6a9baf8c43967ddaca84682d223db8a3ed83a11ea436a10ec9934645bf2
pdf-font-stream PDF embedded font (sfnt) at offset 0x8592 10392 bytes