Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d0047825223a9ce…

MALICIOUS

PDF

45.8 KB Created: 2020-07-17 20:52:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 63c0633b62119e5f5ac3f62a5b585783 SHA-1: c95859fab4124bc5e032e4f297d8e04bc71f4b67 SHA-256: 9d0047825223a9ce1bd25e0a24b37f9cfecd58d19571babaebc05a02970ded61
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF contains multiple heuristics indicating malicious redirection and a link farm. The document body, though heavily obfuscated, suggests an urgency lure. The primary malicious IOC is the link to 'ttraff.com', which is identified as a malicious redirector. The PDF also contains numerous links to Shopify domains, likely part of a link farm to improve SEO for malicious content.

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.com/pify?keyword=ap+school+textbooks+pdf
    • http://files.auntiemaileshawaiiangourmetfavorites.com/uploads/1/3/0/8/130874237/7030284.pdf
    • http://files.whiskeyinaweek.com/uploads/1/3/1/3/131379262/fitora_livol_fisosuzebor_nemam.pdf
    • http://files.northendoutdoors.com/uploads/1/3/0/7/130739945/raxena.pdf
    • https://cdn.shopify.com/s/files/1/0431/9775/9652/files/83088228476.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53262414385.pdf
    • https://cdn.shopify.com/s/files/1/0431/3559/8758/files/katetos.pdf
    • https://cdn.shopify.com/s/files/1/0432/7650/1147/files/zureg.pdf
    • https://cdn.shopify.com/s/files/1/0431/1370/9722/files/93735637395.pdf
    • https://zivokot.files.wordpress.com/2020/06/farimidiravumefujenebigi.pdf
    • https://diwunibe.files.wordpress.com/2020/07/guzolezisi.pdf
    • https://xeparuvikuf.files.wordpress.com/2020/07/buzopasewexepogagavuki.pdf
    • https://metoxulodof.files.wordpress.com/2020/07/vedawoninirabadekax.pdf
    • https://cdn.shopify.com/s/files/1/0433/1926/3397/files/somufedigok.pdf
    • https://cdn.shopify.com/s/files/1/0434/2113/9096/files/vekovuradewox.pdf
    • https://cdn.shopify.com/s/files/1/0430/0141/3795/files/lenupidawuwaxi.pdf
    • https://cdn.shopify.com/s/files/1/0432/0080/7070/files/wulug.pdf
    • https://cdn.shopify.com/s/files/1/0431/1672/4386/files/nubinor.pdf
    • https://cdn.shopify.com/s/files/1/0433/7316/6744/files/nenezevabolopomadeju.pdf
    • https://cdn.shopify.com/s/files/1/0432/1368/4891/files/wotulixugetugexakan.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wawufomujemozinabewa.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_off000076f0.bin
10ce8b55f55e398b0fdeef36ba7c8a5f2855452e692972d66e895cc06385251a
pdf-font-stream PDF embedded font (sfnt) at offset 0x76F0 4832 bytes
font_01_sfnt_off0000876e.bin
5ba4e60ab2b397fd9b377b8483e198d34e0c9a9c259ee31c5017ef79a74ef8c0
pdf-font-stream PDF embedded font (sfnt) at offset 0x876E 10096 bytes