Malicious PDF — malware analysis report

Static analysis result for SHA-256 365b593dd7da1a5f…

MALICIOUS

PDF

42.2 KB Created: 2020-09-07 11:37:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: da122cb077a335e16f87c486658cdcfb SHA-1: 02dbf18e01b03ccbc37981f7e34ecab65c10e87f SHA-256: 365b593dd7da1a5f25e0b147b3245434d9da7d9bea4f9e684a0e9195130c4b0d
160 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 'ignou b ed study material pdf' and embeds a link to 'ttraff.club', which is flagged as a malicious redirector. The document also contains a mass external PDF link farm, with many links pointing to 'static.usrfiles.com'. The presence of these links and the 'SE_PAYMENT_REDIRECT_LURE' heuristic suggest a phishing or redirection attack, likely aiming to compromise users through a malicious website. 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.
  • 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
  • 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.club/wix?keyword=ignou+b+ed+study+material+pdf
    • https://static.usrfiles.com/ugd/909b15_b5edb053d1cc4839b48ed54ab49a7af6.pdf
    • https://static.usrfiles.com/ugd/b916f4_a302bf6e73fb4c8b9f71ee3c31df73a8.pdf
    • https://static.usrfiles.com/ugd/a18aa6_833b6632dea94af8a8ffbaa0a6c983b4.pdf
    • https://static.usrfiles.com/ugd/b77b08_0de2fa230aba4bc8b4e7ee8ec2f7c381.pdf
    • https://static.usrfiles.com/ugd/35f767_f6a218b1e46a451ab66421c26f193d55.pdf
    • https://static.usrfiles.com/ugd/61b8bf_21a6c70a072e4a5c90bbea5d6aaeec36.pdf
    • https://static.usrfiles.com/ugd/e8dba5_9dd7f32ecf12426a97d6c4ce5b3e4bec.pdf
    • https://static.usrfiles.com/ugd/8acad3_49b428ac1dd64fed833449beaab135bb.pdf
    • https://static.usrfiles.com/ugd/b8c837_0112edbed89145b9be46dabcb3dd0050.pdf
    • https://static.usrfiles.com/ugd/0dd040_fe8cdf4e004f41e0b0a5e3727807ec3c.pdf
    • https://static.usrfiles.com/ugd/08e331_d953629a8c784723b61d67c42113b11e.pdf
    • https://static.usrfiles.com/ugd/df73ab_792b42dbdaa848988612f5f32ca832b3.pdf
    • https://static.usrfiles.com/ugd/bc4951_9f07bbeb20ed4143b87b77e11d2d779f.pdf
    • https://static.usrfiles.com/ugd/9cfd0a_6b0563943e21445b8ed00f75d368b7b5.pdf
    • https://static.usrfiles.com/ugd/857e61_42546b4855bb4ac387b38a0029a04a1c.pdf
    • https://static.usrfiles.com/ugd/115d6e_ff19913695244fefaad8512c97a923c3.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_off0000662e.bin
d7179be8365b87826ee8fb86f749a14e36ea80aeccc5187373bfa424ec097d61
pdf-font-stream PDF embedded font (sfnt) at offset 0x662E 5540 bytes
font_01_sfnt_off000078f1.bin
5eec3b337a286115d7832b8189cc3e0eddaf1c7921ac6a74137dc5004f5dc8ee
pdf-font-stream PDF embedded font (sfnt) at offset 0x78F1 10244 bytes