Malicious PDF — malware analysis report

Static analysis result for SHA-256 458a82c97779fc56…

MALICIOUS

PDF

41.0 KB Created: 2020-08-08 20:52:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 217b07aa00d8d634a2cc59c0ad1a9b88 SHA-1: 65aa609d2053e9861ea41ef90e23b6e02a220745 SHA-256: 458a82c97779fc5632ad480dbb14413a55cc98741ae2eaa3fcacafcafb878b66
162 Risk Score

Malware Insights

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

The PDF contains numerous links, masquerading as document content, that lead to a link farm hosted on cdn.shopify.com. One of these links redirects to a malicious URL on ttraff.com. The document also contains a social engineering lure, instructing the user to install a browser extension or update to view content, which is a common tactic for malware delivery or credential theft.

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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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=bordering+on+chaos+pdf
    • http://files.seergreensingers.com/uploads/1/3/0/9/130969322/d57f86.pdf
    • http://files.sweetcorndevelopment.org/uploads/1/3/0/7/130739814/1552040.pdf
    • http://files.four-colorstudios.com/uploads/1/3/1/4/131409909/753840.pdf
    • http://files.myartisticdentist.com/uploads/1/3/1/4/131453214/ribane_vasilabofeb_dotowifixusiw_zejezurugo.pdf
    • https://cdn.shopify.com/s/files/1/0432/2246/6727/files/agriculture_syllabus_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/3393/6547/files/nedujuwopu.pdf
    • https://cdn.shopify.com/s/files/1/0431/2167/2356/files/nolagoverifisegakoxafalo.pdf
    • https://cdn.shopify.com/s/files/1/0441/2522/5112/files/10867811066.pdf
    • https://cdn.shopify.com/s/files/1/0430/2969/2577/files/mokotokamesasolo.pdf
    • https://cdn.shopify.com/s/files/1/0434/4433/8838/files/sikajoze.pdf
    • https://cdn.shopify.com/s/files/1/0430/5344/9365/files/ximepafopaxoxanotasuwoduw.pdf
    • https://cdn.shopify.com/s/files/1/0431/0928/6050/files/koxebi.pdf
    • https://cdn.shopify.com/s/files/1/0438/2598/7746/files/git_clone_permission_denied_publickey.pdf
    • https://cdn.shopify.com/s/files/1/0433/6232/0536/files/nexeloxeju.pdf
    • https://cdn.shopify.com/s/files/1/0438/2405/4429/files/69815754688.pdf
    • https://cdn.shopify.com/s/files/1/0432/3108/4708/files/wasamijinisekedag.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/28650507632.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_off000061f7.bin
21c82a1047b4c0e7a80525104072f95903a647f22496567498486f2b248fdcda
pdf-font-stream PDF embedded font (sfnt) at offset 0x61F7 5432 bytes
font_01_sfnt_off00007475.bin
9089d52a7f0a3ac7212605283dde0a628b6ea3874faaac7c850e874dc4c20342
pdf-font-stream PDF embedded font (sfnt) at offset 0x7475 10308 bytes