Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2cdb2690f418c7e…

MALICIOUS

PDF

43.3 KB Created: 2020-08-31 00:26:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ead7727ac7ccd6a26bda03497949b989 SHA-1: a8164f1870a152bfca11e1f3dca56dbffe081493 SHA-256: f2cdb2690f418c7ea941bd8cde217bde4da6cba49c6e7a015c2bd897fe749a88
130 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, a heuristic firing for PDF_SEO_LINK_FARM, and one critical link to a known malicious redirector (ttraff.com). The document body also contains a call-to-action phrase, suggesting a lure to click the malicious link. The primary attack pattern involves redirecting the user to malicious infrastructure via a disguised link.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wix?keyword=army+ground+guide+hand+signals
    • https://cdn.shopify.com/s/files/1/0434/0157/6615/files/9350782436.pdf
    • https://cdn.shopify.com/s/files/1/0430/8670/8893/files/moto_moto_song.pdf
    • https://cdn.shopify.com/s/files/1/0431/5034/4352/files/cutting_practice_worksheets_for_kindergarten.pdf
    • https://cdn.shopify.com/s/files/1/0438/3395/0358/files/sonoma_line_up.pdf
    • https://cdn.shopify.com/s/files/1/0433/5036/0232/files/dekufivifedopiluvewapam.pdf
    • https://static.usrfiles.com/ugd/b8c837_77a28d23e4884018bdace19f74a42eff.pdf
    • https://cdn.shopify.com/s/files/1/0436/8000/6294/files/globalism_nationalism_tribalism.pdf
    • https://cdn.shopify.com/s/files/1/0427/7056/3239/files/47870327663.pdf
    • https://cdn.shopify.com/s/files/1/0433/5806/0703/files/wijaxisirefimuxe.pdf
    • https://cdn.shopify.com/s/files/1/0432/6873/5140/files/circuite_integrate_analogice.pdf
    • https://cdn.shopify.com/s/files/1/0431/1089/1680/files/descargar_libros_de_motores_electricos_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0429/9931/6639/files/96049283583.pdf
    • https://cdn.shopify.com/s/files/1/0431/5083/5876/files/50725529854.pdf
    • https://cdn.shopify.com/s/files/1/0438/3136/1686/files/save_file_javascript.pdf
    • https://cdn.shopify.com/s/files/1/0431/8425/9231/files/wokosupobore.pdf
    • https://cdn.shopify.com/s/files/1/0435/9038/5821/files/84937033534.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e80.bin
bccab52a1875da7541524b92074fb0b6cf9fa5ca0a173cc1ccd8bf07aca347cc
pdf-font-stream PDF embedded font (sfnt) at offset 0x5E80 5132 bytes
font_01_sfnt_off00006fb5.bin
8c2f37f58c1b9464d07a33ce4e1395dbdefd24baa057b3eee2d2fc11dc841b61
pdf-font-stream PDF embedded font (sfnt) at offset 0x6FB5 10068 bytes
font_02_sfnt_off0000922e.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0x922E 4324 bytes