Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9342c3445cacfe1…

MALICIOUS

PDF

69.4 KB Created: 2020-09-06 03:09:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1efa9b2ca8a9be05e07c2b3c446bbe2f SHA-1: 61c8838e22e47011fab224858cd613d3f62f20dd SHA-256: a9342c3445cacfe1cc86efd6fb9c67569a2774150f1bd37e35e6bad6572a9843
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF document contains a lure related to 'Hackintosh guide' and embeds a large number of links, including a critical redirector link to ttraff.club. The document body also explicitly contains the malicious URL and several benign-looking Shopify URLs, suggesting a link farm or redirection strategy. The heuristic 'SE_CLIPBOARD_COMMAND_LURE' indicates the document may also instruct the user to execute commands, likely to facilitate the download or execution of further payloads from the malicious URL.

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.club/wix?keyword=hackintosh+guide+how+to+install+mojave
    • https://cdn.shopify.com/s/files/1/0431/0476/4068/files/roxopipowapofunun.pdf
    • https://cdn.shopify.com/s/files/1/0435/0777/7702/files/54456113158.pdf
    • https://cdn.shopify.com/s/files/1/0432/1126/0062/files/49880297669.pdf
    • https://cdn.shopify.com/s/files/1/0432/2230/2888/files/75220461635.pdf
    • https://cdn.shopify.com/s/files/1/0440/7607/3125/files/how_to_convert_arabic_to_english.pdf
    • https://static.usrfiles.com/ugd/d775a9_d20c39bafbc54935a3a9ec307c3790f9.pdf
    • https://static.usrfiles.com/ugd/a382ee_79e78b682d40418eb1ab53b8cdd269df.pdf
    • https://static.usrfiles.com/ugd/5a1791_268134f6f0c6417da4796dccb1a1acee.pdf
    • https://cdn.shopify.com/s/files/1/0431/2226/2178/files/sazuxuxorotobililevu.pdf
    • https://cdn.shopify.com/s/files/1/0429/9476/1877/files/rawovasadejuwameb.pdf
    • https://cdn.shopify.com/s/files/1/0435/4742/6975/files/94760606738.pdf
    • https://cdn.shopify.com/s/files/1/0431/5630/8123/files/free_printable_monthly_business_expense_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0438/0111/6833/files/xomobavonozozuxez.pdf
    • https://cdn.shopify.com/s/files/1/0440/5772/3030/files/system_dynamics_3rd_edition_palm_mcg.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bab8.bin
2ade7b5c17bc9737e3da6777216cf488044b88e618ded66f06e36eea518f7044
pdf-font-stream PDF embedded font (sfnt) at offset 0xBAB8 5392 bytes
font_01_sfnt_off0000cced.bin
4673df62f83c90a4a8b175f4a29f68dd27e8b155ac9c6a456a294eea89c3893f
pdf-font-stream PDF embedded font (sfnt) at offset 0xCCED 2236 bytes
font_02_sfnt_off0000d719.bin
833f0774b640a2bfa1bc9b6c56fab4151be0d046bb86cc913c872922574a5abe
pdf-font-stream PDF embedded font (sfnt) at offset 0xD719 10152 bytes
font_03_sfnt_off0000f9e7.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0xF9E7 4324 bytes