Malicious PDF — malware analysis report

Static analysis result for SHA-256 28481dd094c40f9f…

MALICIOUS

PDF

40.3 KB Created: 2020-08-01 02:21:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3c91bcdb6cf5b477c99b1b56a8ec1d56 SHA-1: 5d0c1661a1bf3b82a79010f4d5d19e1a360196c8 SHA-256: 28481dd094c40f9fdebec5576c6706eaee77cd474e28ca4045713d93269382c5
128 Risk Score

Malware Insights

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

The PDF document contains a link farm and a critical redirector link pointing to 'https://ttraff.com/pify?keyword=nintendo+switch+reset'. This indicates a phishing or scam attempt, likely to lure users to a malicious site. The document body, though heavily obfuscated, also contains the same redirector URL and several other PDF links hosted on Shopify, suggesting a broad distribution effort. No scripts were extracted from this sample.

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=nintendo+switch+reset
    • http://files.createartpartykids.com/uploads/1/3/0/7/130775505/8751415.pdf
    • http://files.jerrycancompany.com/uploads/1/3/1/0/131070355/rixapisotukivojaw.pdf
    • http://files.hoovermspta.org/uploads/1/3/0/8/130874451/4978576.pdf
    • http://files.urbanoasisproject.org/uploads/1/3/1/6/131636728/cca6e9033153.pdf
    • https://cdn.shopify.com/s/files/1/0435/2914/2426/files/47328073351.pdf
    • https://cdn.shopify.com/s/files/1/0437/6385/9610/files/97265755330.pdf
    • https://cdn.shopify.com/s/files/1/0437/4377/2826/files/61598560819.pdf
    • https://cdn.shopify.com/s/files/1/0437/8561/7566/files/89302089338.pdf
    • https://cdn.shopify.com/s/files/1/0431/1551/1968/files/fedek.pdf
    • https://cdn.shopify.com/s/files/1/0430/7661/6341/files/xutemaso.pdf
    • https://cdn.shopify.com/s/files/1/0437/2607/8101/files/94369569252.pdf
    • https://cdn.shopify.com/s/files/1/0428/8679/1334/files/luwutowukipubaferasedu.pdf
    • https://cdn.shopify.com/s/files/1/0440/7122/3446/files/soxajig.pdf
    • https://cdn.shopify.com/s/files/1/0437/8578/1405/files/33624824653.pdf
    • https://cdn.shopify.com/s/files/1/0431/5312/9640/files/mobedeligibo.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_off0000620b.bin
22310a6246a1e83ad512ba43bebd12f28a1f2026328972c1abacab2bee5d2d0f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x620B 4848 bytes
font_01_sfnt_off00007298.bin
00996a495206b3c3ba2b83d51c7965a81ea7b10376b90f3f46b009e922f5685a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7298 9996 bytes

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