Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ad6ab9a065043c7…

MALICIOUS

PDF

43.7 KB Created: 2020-08-12 02:41:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4235bee7b64a8dfa977edea18951263f SHA-1: e37bbc288b73e3dd286f2a8380f5e0b5b1e81495 SHA-256: 9ad6ab9a065043c7dc311a1ac67bd8155515de88973b12cd95d447ef23e2ecd8
128 Risk Score

Malware Insights

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

The PDF document contains a lure related to 'Software testing a craftsman's approach 3rd edition pdf download' and includes a call-to-action button. It embeds numerous links, with a critical heuristic firing indicating a redirector link to 'ttraff.ru'. This suggests the document is designed to trick users into clicking malicious links, likely leading to further compromise.

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.ru/wb?keyword=software%20testing%20a%20craftsman
    • http://mukugava.bcbarns.com/uploads/1/3/0/8/130813533/febaw_waxivodig_daporib.pdf
    • http://files.cocoamoy.co.uk/uploads/1/3/2/6/132682976/5933367.pdf
    • http://files.rexingsuper4th.com/uploads/1/3/2/6/132682615/relesosuzeriwitega.pdf
    • http://files.kellyhowellphoto.com/uploads/1/3/2/8/132814949/d4190.pdf
    • http://files.dopeceiling.com/uploads/1/3/2/6/132682883/wenegaxomax_dijunubawu_nuvibexibobaxi.pdf
    • https://cdn.shopify.com/s/files/1/0427/4746/1788/files/japevifamufonawe.pdf
    • https://cdn.shopify.com/s/files/1/0430/5590/6970/files/usb_mod_for_ps3.pdf
    • https://cdn.shopify.com/s/files/1/0432/0890/0768/files/rise_of_nationalism_in_europe_class_10_ncert.pdf
    • https://cdn.shopify.com/s/files/1/0432/2086/1092/files/mimi_s_cafe_job_application.pdf
    • https://cdn.shopify.com/s/files/1/0431/5512/8480/files/wubodogigul.pdf
    • https://cdn.shopify.com/s/files/1/0434/2362/9477/files/51493784988.pdf
    • https://cdn.shopify.com/s/files/1/0433/9056/6556/files/security_guard_training_manual_the_american_security_guard.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/54341666742.pdf
    • https://cdn.shopify.com/s/files/1/0438/4397/7366/files/fuwupidugetobib.pdf
    • https://cdn.shopify.com/s/files/1/0429/7015/3113/files/34429508807.pdf
    • https://cdn.shopify.com/s/files/1/0437/8610/9086/files/vamexudejabibozib.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_off00006a29.bin
0b75409cadcdeee392d92349cada7890cefe91ee31daaa79847e20dfd2416a75
pdf-font-stream PDF embedded font (sfnt) at offset 0x6A29 5964 bytes
font_01_sfnt_off00007e5a.bin
16e5dd5e5f360d77c2ada0b02d05c6bb614cae1975d1f4c18d03bf66068d225e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E5A 10128 bytes