Malicious PDF — malware analysis report

Static analysis result for SHA-256 917a8223f69d1732…

MALICIOUS

PDF

39.7 KB Created: 2020-09-03 21:54:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 13a152468276ce0346b6e3783c1c0368 SHA-1: 6fa9b439284de42ccefe392fdd87f0d80faf055a SHA-256: 917a8223f69d1732f2275f347fab73bcbeb6b63cfbcd9c02def3cfd23e3bd5cf
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 a debit card dispute, directing users to a malicious redirector URL. The heuristic firings indicate this is a payment redirection lure and a link farm designed to host multiple PDFs. The primary malicious URL identified is https://ttraff.link/wix?keyword=debit+card+dispute+form+sbi. 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.link/wix?keyword=debit+card+dispute+form+sbi
    • https://cdn.shopify.com/s/files/1/0432/2754/5757/files/lugidevuwojabalezegewi.pdf
    • https://cdn.shopify.com/s/files/1/0430/2707/1127/files/budowufixeroxap.pdf
    • https://cdn.shopify.com/s/files/1/0431/3851/5098/files/bernette_340_deco_file_format.pdf
    • https://cdn.shopify.com/s/files/1/0429/8987/9445/files/41722429979.pdf
    • https://cdn.shopify.com/s/files/1/0431/9756/3037/files/oreo_mystery_flavor_2019_answer.pdf
    • https://cdn.shopify.com/s/files/1/0437/1798/4405/files/pitusupupumabexegetov.pdf
    • https://cdn.shopify.com/s/files/1/0431/0083/1905/files/blender_full_crack_bagas31.pdf
    • https://static.usrfiles.com/ugd/52b593_76231b94378f4431b87a22e0ad1d8011.pdf
    • https://static.usrfiles.com/ugd/9219f8_cc2517599878416ba3ba00860050ab0f.pdf
    • https://static.usrfiles.com/ugd/957c7b_cbec6893fc274fedb5af36b627b7002e.pdf
    • https://cdn.shopify.com/s/files/1/0435/2629/1611/files/sensory_evaluation_of_beer.pdf
    • https://cdn.shopify.com/s/files/1/0428/5821/7631/files/christian_reformed_church_publishing_house.pdf
    • https://cdn.shopify.com/s/files/1/0430/5161/4359/files/nulexejawaromepapemetado.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_off00005d52.bin
28513cd979f420bf0fa5c6f3a13768e45f26ca6051a0018de9ec4d2ccaf31b0b
pdf-font-stream PDF embedded font (sfnt) at offset 0x5D52 5408 bytes
font_01_sfnt_off00006f9e.bin
33935aa15b5807d603e525fb1bdce2aec7537aec2c023dfe6409aaf8ebc0c764
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F9E 10236 bytes