Malicious PDF — malware analysis report

Static analysis result for SHA-256 39204c01a876498a…

MALICIOUS

PDF

62.5 KB Created: 2020-08-14 18:32:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9f25e3b257d1807fde7d8e1119f15ed5 SHA-1: d5b64d12f4cbbeaf59419492dfdee0670fb1f920 SHA-256: 39204c01a876498a4d5d070a26eb3754466c55744cbc66282c646dfec4e70925
160 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=python+3+for+windows+10'. Additionally, a heuristic indicates a 'Clipboard command execution lure', suggesting the document instructs the user to copy and paste content into a shell. The document body, though partially corrupted, contains URLs that are part of a link farm, with one specifically identified as a malicious redirector.

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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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.cc/pify?keyword=python+3+for+windows+10
    • http://files.scfsoftballclub.com/uploads/1/3/1/4/131454567/237483.pdf
    • https://cdn.shopify.com/s/files/1/0431/0119/2352/files/remove_blank_pages_scanned.pdf
    • https://cdn.shopify.com/s/files/1/0431/3464/8474/files/56221554728.pdf
    • https://cdn.shopify.com/s/files/1/0433/6176/3480/files/44402067825.pdf
    • https://cdn.shopify.com/s/files/1/0435/4244/6231/files/chooriyan_pakistani_full_movie.pdf
    • https://cdn.shopify.com/s/files/1/0431/2793/1029/files/35044570987.pdf
    • https://cdn.shopify.com/s/files/1/0432/4474/8950/files/87678583334.pdf
    • https://cdn.shopify.com/s/files/1/0432/2040/2343/files/24044882890.pdf
    • https://cdn.shopify.com/s/files/1/0434/0432/9127/files/kodaligebijogato.pdf
    • https://cdn.shopify.com/s/files/1/0432/9819/3573/files/73922776889.pdf
    • https://cdn.shopify.com/s/files/1/0434/6845/6102/files/capricho_arabe_guitarra.pdf
    • https://cdn.shopify.com/s/files/1/0433/1172/6750/files/zadolapadefujoxudiwefop.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/28650507632.pdf
    • https://cdn.shopify.com/s/files/1/0434/3801/4616/files/zuvubonusowebezal.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_off0000b2d2.bin
f625091929884dd157194dd6ffb73624ab52c53fe11b49393f2e04fe1695b0d1
pdf-font-stream PDF embedded font (sfnt) at offset 0xB2D2 5308 bytes
font_01_sfnt_off0000c4f2.bin
02d773ac59b5445859e4c96e5450eaa085cdd67ef020e56c8e78a88906300b9a
pdf-font-stream PDF embedded font (sfnt) at offset 0xC4F2 12500 bytes