Malicious PDF — malware analysis report

Static analysis result for SHA-256 d82ac6260925688b…

MALICIOUS

PDF

50.1 KB Created: 2020-07-31 16:44:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5488f33ac5a5dca9053b61bf38b13d99 SHA-1: de498708afe300e024ab348dcc023bbafd5c2089 SHA-256: d82ac6260925688b0c1f49ca7b957918c90367727ffb7c3bc8c9e3de6daaec7b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.003 Command and Scripting Interpreter: Windows Command Shell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=mac+commands+cheat+sheet+pdf'. Additionally, it exhibits a PDF link farm, suggesting an attempt to manipulate search engine results or distribute content broadly. The document also contains a lure to execute commands via the clipboard, indicating a potential multi-stage attack. No scripts were extracted, but the presence of the malicious redirector and the command execution lure strongly suggest a phishing or malware delivery attempt.

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=mac+commands+cheat+sheet+pdf
    • http://files.neurodivergenceatl.org/uploads/1/3/0/7/130776118/zonodagabajelimi.pdf
    • http://files.msbrodysclass.org/uploads/1/3/1/3/131398406/4103915.pdf
    • http://files.ocbssolutions.com/uploads/1/3/1/3/131379846/wumuz.pdf
    • https://cdn.shopify.com/s/files/1/0430/1488/1433/files/44723809033.pdf
    • https://cdn.shopify.com/s/files/1/0435/2176/9627/files/pekizozuze.pdf
    • https://cdn.shopify.com/s/files/1/0433/1234/9334/files/13037129107.pdf
    • https://cdn.shopify.com/s/files/1/0430/5852/8405/files/fidagozowutiterizexefu.pdf
    • https://cdn.shopify.com/s/files/1/0432/0195/3952/files/xigejexotupu.pdf
    • https://cdn.shopify.com/s/files/1/0432/4560/0931/files/fapawojefetonomalolutune.pdf
    • https://cdn.shopify.com/s/files/1/0434/6219/7400/files/21904716027.pdf
    • https://cdn.shopify.com/s/files/1/0433/7657/4620/files/80450139596.pdf
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/gisetiwej.pdf
    • https://cdn.shopify.com/s/files/1/0432/4904/1563/files/foxebavexazamijoxikagef.pdf
    • https://cdn.shopify.com/s/files/1/0435/3189/4944/files/27278765036.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xekosipavejidowusa.pdf
    • https://cdn.shopify.com/s/files/1/0431/1806/7876/files/65063787833.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_off00006ff9.bin
261760836bb428ea2ef6cbc194addba64e574efcc407ef8fe6c3e27b5db0cd3c
pdf-font-stream PDF embedded font (sfnt) at offset 0x6FF9 5272 bytes
font_01_sfnt_off000081d2.bin
ce46d88790d02bebc742428352f45961c641b30e89d7e628b5cd3994339edf0d
pdf-font-stream PDF embedded font (sfnt) at offset 0x81D2 10276 bytes
font_02_sfnt_off0000a4e6.bin
899ccc2a6a8bda55742108d06bf2fba8c9fd4862a56bafd7913faffa19ea2976
pdf-font-stream PDF embedded font (sfnt) at offset 0xA4E6 16576 bytes