Malicious PDF — malware analysis report

Static analysis result for SHA-256 883412c15065d4a9…

MALICIOUS

PDF

40.2 KB Created: 2020-08-01 05:29:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9e0f4ab82f026f5c536072d96bf7c053 SHA-1: 5e4ce4d813e76d46f45a1eb9e9c2cd04c4d4288c SHA-256: 883412c15065d4a98b2073e90e05540df2f6120e368622badcd5b5bdf85d7c01
160 Risk Score

Malware Insights

MITRE ATT&CK
T1059.003 Windows Command Shell T1204.002 Malicious Link

The PDF contains a link farm pointing to numerous PDF files, with one redirecting to a known malicious domain. The document body also contains instructions that explicitly tell the user to copy and paste content into a command-line interface, indicating a social engineering lure to execute commands. This suggests the document is designed to trick users into downloading and executing further payloads.

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=win10+hosts+file
    • http://files.monicamandell.com/uploads/1/3/0/8/130874254/puvamisegejetetu.pdf
    • http://files.lylesmsband.org/uploads/1/3/1/4/131484268/0ffa9ce61.pdf
    • http://files.mariepascalelafreniere.com/uploads/1/3/0/7/130739144/likimas.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/78046530146.pdf
    • https://cdn.shopify.com/s/files/1/0433/9941/3925/files/28536856137.pdf
    • https://cdn.shopify.com/s/files/1/0434/7153/6285/files/10541684619.pdf
    • https://cdn.shopify.com/s/files/1/0428/4933/7507/files/32443099447.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gobobuxewinunegurugita.pdf
    • https://cdn.shopify.com/s/files/1/0428/9649/0663/files/bemufefitoketiruruvuf.pdf
    • https://cdn.shopify.com/s/files/1/0433/7182/3262/files/kaxasuzugafa.pdf
    • https://cdn.shopify.com/s/files/1/0433/2729/1544/files/41873363729.pdf
    • https://cdn.shopify.com/s/files/1/0432/0890/0768/files/36340711042.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_off00006016.bin
2910f694a3a4f8eb4921ffbccc7164341305e9a6acaec3cf2f5dea1b4052f759
pdf-font-stream PDF embedded font (sfnt) at offset 0x6016 4756 bytes
font_01_sfnt_off00007061.bin
220ba044329c013ee2d2d977415cb2233e75a4d2e33865577e43bcb5f96ebe42
pdf-font-stream PDF embedded font (sfnt) at offset 0x7061 10648 bytes