Malicious PDF — malware analysis report

Static analysis result for SHA-256 383d2688bd8efdcc…

MALICIOUS

PDF

43.3 KB Created: 2020-08-23 21:51:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6341a8c707358cba093715a01789ffd9 SHA-1: e7f70b27823a098391982725a244541dc0e34be6 SHA-256: 383d2688bd8efdcc23b9041d27215aad9df7a2fa7f9d9419c509ed1c6fd5217d
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL, https://ttraff.com/pify?keyword=nol+carryback+form+1040, is directly linked to a known malicious redirector. Another heuristic indicates a PDF link farm, with many links pointing to Shopify-hosted PDFs. The document body contains obfuscated text and the malicious URL, suggesting an attempt to disguise the malicious intent.

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.com/pify?keyword=nol+carryback+form+1040
    • http://bobivezo.pccyorktown.com/uploads/1/3/1/4/131453540/mugijinikalanax.pdf
    • https://cdn.shopify.com/s/files/1/0431/8360/3876/files/jojeruvagoxexifurudode.pdf
    • https://cdn.shopify.com/s/files/1/0432/6536/0034/files/45164359185.pdf
    • https://cdn.shopify.com/s/files/1/0429/1434/9215/files/27602591733.pdf
    • https://cdn.shopify.com/s/files/1/0431/3071/6314/files/void_ore_miner_tier_1_setup.pdf
    • https://cdn.shopify.com/s/files/1/0439/2134/2619/files/solijotopoxojukubajokubu.pdf
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/gakajijapenaxomodamawavep.pdf
    • https://cdn.shopify.com/s/files/1/0428/3708/2271/files/scotsman_guide_december_2018.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005eb5.bin
990138599942fd89ba4641d8422cb24f5e2061406fd33bdf42837d8fee5c791a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EB5 4844 bytes
font_01_sfnt_off00006f3a.bin
a8a3fb508a0f1f3d21a12fe1f5f35355dd07f80f91c4ceb6d29d8c9f26a6bfb6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F3A 10508 bytes
font_02_sfnt_off00009317.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9317 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.