Malicious PDF — malware analysis report

Static analysis result for SHA-256 93bb27b8411e7701…

MALICIOUS

PDF

101.5 KB Created: 2020-09-08 02:50:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 47ba86a9467ca2eb49d3854fdc45b781 SHA-1: 4890c60cb419c09f3df6ed4f904970a12613b645 SHA-256: 93bb27b8411e7701ce2c5a9f7b0163fe22a6a1109a256e2bae9708b2c8fc754e
168 Risk Score

Malware Insights

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

The PDF contains a lure related to 'Tatkal train ticket booking form' and embeds multiple links. One critical heuristic indicates the PDF links to known malicious redirector infrastructure, specifically `https://ttraff.ru/wix?keyword=tatkal+train+ticket+booking+form`. Another heuristic identifies a PDF link farm, with many links pointing to `static.usrfiles.com`. The presence of a payment redirection lure suggests a business-email-compromise pattern, aiming to trick users into clicking the malicious link.

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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise 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/wix?keyword=tatkal+train+ticket+booking+form
    • https://static.usrfiles.com/ugd/ee6770_11b5ca807e4144b1be46fae0538c732d.pdf
    • https://static.usrfiles.com/ugd/d3758e_e6d636bc77494df18feefa11fef6134d.pdf
    • https://static.usrfiles.com/ugd/b8c837_13f261257c5043a58472f0bb93139fd5.pdf
    • https://static.usrfiles.com/ugd/e7e4a0_486671b5b3df4bcb8795cb3b8a5f5c84.pdf
    • https://static.usrfiles.com/ugd/a474dd_73804f01c82947e1b1bf7d8bc566fd65.pdf
    • https://cdn.shopify.com/s/files/1/0431/5188/4445/files/darama.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/41557636134.pdf
    • https://static.usrfiles.com/ugd/f3ecbe_78266cf41d2d46ff9c0a793faaa92bce.pdf
    • https://static.usrfiles.com/ugd/269bb8_7bd2da2289ac4b0087376bb3c166b00c.pdf
    • https://static.usrfiles.com/ugd/e2b09b_fe64c2cd29bb4c8f952ea97513e65b7a.pdf
    • https://static.usrfiles.com/ugd/b42fd6_655c67bcc2e74387ac18bf25bdf52169.pdf
    • https://static.usrfiles.com/ugd/ceb2e8_165323a62bde411e99ba1f5c6e21947f.pdf
    • https://static.usrfiles.com/ugd/b8c837_fef08631cb184895a3de57d13cc79efe.pdf
    • https://static.usrfiles.com/ugd/c0a468_0d469237e282444491b327923a3eaac8.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_off00013c15.bin
00fdd073462174d11f3c8b0556466081fb8f0db8af2a34e1fe741faaea03a95f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13C15 5176 bytes
font_01_sfnt_off00014dab.bin
b35af10f014293f795a13ed81230aeb7a850f20f9c07698afb4fdd4923fe2a39		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14DAB 10908 bytes
font_02_sfnt_off0001731b.bin
0c82561ead172ac0e51412abe629b5944d5f81f469066018c017fef234fe4ba7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1731B 16388 bytes

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