Malicious PDF — malware analysis report

Static analysis result for SHA-256 7baa29dcf768987e…

MALICIOUS

PDF

57.9 KB Created: 2020-08-12 06:11:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c32e3fa781eb0aa38e6edf5b90d319e4 SHA-1: 4e7885b96f1eaabf8fdcbc0998ab1c4b547e9e88 SHA-256: 7baa29dcf768987efd2d13caf65600d2f44a1bd963571067741c33a87b1bbc0b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1059 Command and Scripting Interpreter

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=customary+law+cases+pdf'. Additionally, it exhibits a 'PDF_SEO_LINK_FARM' pattern, embedding numerous links, including one to 'https://cdn.shopify.com/s/files/1/0433/0687/7080/files/19227598733.pdf'. The document also includes a 'SE_CLIPBOARD_COMMAND_LURE' heuristic, indicating it instructs users to interact with command-line interfaces. The combination of these elements suggests a social engineering attack designed to redirect users to malicious sites and potentially execute commands.

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.com/pify?keyword=customary+law+cases+pdf
    • http://files.theearnestoptimist.com/uploads/1/3/2/7/132712080/kemaga_govolariraxisod_zomitaralazo.pdf
    • http://luxopilev.baldingandblogging.com/uploads/1/3/0/9/130969754/lezakuk-zetozurawe-mejekidutad.pdf
    • http://files.castillejacotton.net/uploads/1/3/0/8/130815137/e074761e.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/19227598733.pdf
    • https://cdn.shopify.com/s/files/1/0432/7240/5157/files/melumudutiduv.pdf
    • https://cdn.shopify.com/s/files/1/0430/9037/8903/files/38964590612.pdf
    • https://cdn.shopify.com/s/files/1/0438/2529/9606/files/gutajunup.pdf
    • https://cdn.shopify.com/s/files/1/0430/8343/2096/files/60012352126.pdf
    • https://cdn.shopify.com/s/files/1/0433/6274/6517/files/adinkra_symbols_and_meaning.pdf
    • https://cdn.shopify.com/s/files/1/0430/2068/1369/files/luronunanemajixirejodes.pdf
    • https://cdn.shopify.com/s/files/1/0435/7727/8627/files/bavasarevidezijozutej.pdf
    • https://cdn.shopify.com/s/files/1/0438/7006/0704/files/bruno_mars_just_the_way_you_are_piano.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/31052941417.pdf
    • https://cdn.shopify.com/s/files/1/0433/8096/5534/files/child_care_act_of_1969.pdf
    • https://cdn.shopify.com/s/files/1/0439/5397/9550/files/45624883395.pdf
    • https://cdn.shopify.com/s/files/1/0434/0659/0106/files/29990389778.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_off00009ffa.bin
29958c9e0c35c5658c2cd2002158e65f5c6337b319730914a7edea9943359e6b
pdf-font-stream PDF embedded font (sfnt) at offset 0x9FFA 5400 bytes
font_01_sfnt_off0000b258.bin
c1660dc7ebd331c7168ea617bea603fa7153cc836fa8043b23c6736d2d81b175
pdf-font-stream PDF embedded font (sfnt) at offset 0xB258 12316 bytes