Malicious PDF — malware analysis report

Static analysis result for SHA-256 255f61aaf31c5aa7…

MALICIOUS

PDF

40.4 KB Created: 2020-08-06 09:28:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3bc5f59156009b791af4cd54c399ae00 SHA-1: a3672fd6acb2ff6f86e25f621441864a035f0df7 SHA-256: 255f61aaf31c5aa76fd15f8b5c5321e63f73c86bb5084c2efd7b8f5fd32214a6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1059 Command and Scripting Interpreter

The PDF contains a malicious redirector link to 'https://ttraff.cc/pify?keyword=informal+business+report+sample+pdf', which is a strong indicator of malicious intent. The document also includes a lure to execute commands via the clipboard, suggesting an attempt to trick the user into running malicious code. The presence of numerous embedded links, many pointing to Shopify domains, indicates a link farm strategy, likely to improve SEO for malicious content or to obscure the final destination. No scripts were extracted from this sample.

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=informal+business+report+sample+pdf
    • http://files.by-embee.com/uploads/1/3/1/4/131438759/lelijavase.pdf
    • http://files.n2-crafts.com/uploads/1/3/0/7/130739651/vodepam_negajogulowabi_nawovosovase_fewimupeninos.pdf
    • http://kerolewo.puerhbrooklyn.com/uploads/1/3/0/7/130776031/mefovuked.pdf
    • https://cdn.shopify.com/s/files/1/0435/4850/8311/files/19385215031.pdf
    • https://cdn.shopify.com/s/files/1/0433/0130/6526/files/owl_city_christmas_song.pdf
    • https://cdn.shopify.com/s/files/1/0437/1241/3851/files/dogalonarimolozibelifur.pdf
    • https://cdn.shopify.com/s/files/1/0434/8159/6066/files/48693056150.pdf
    • https://cdn.shopify.com/s/files/1/0449/0412/0475/files/bethany_beach_surf_report.pdf
    • https://cdn.shopify.com/s/files/1/0434/5459/5224/files/75388652185.pdf
    • https://cdn.shopify.com/s/files/1/0436/3078/8758/files/star_trek_enterprise_theme_song.pdf
    • https://cdn.shopify.com/s/files/1/0431/2072/2080/files/gidisej.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1587610690.pdf
    • https://cdn.shopify.com/s/files/1/0432/9304/8992/files/nudulonofu.pdf
    • https://cdn.shopify.com/s/files/1/0433/8266/9461/files/read_ella_enchanted_online.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_off0000614b.bin
1292631df599f9a94b49fc0d106e04070c16c584454699bc9ad6b944f7258b1e
pdf-font-stream PDF embedded font (sfnt) at offset 0x614B 5264 bytes
font_01_sfnt_off00007312.bin
154b40c61e0ce127eab1da30b7197b57de23ad5ff993200f2d82b6a0b88468c1
pdf-font-stream PDF embedded font (sfnt) at offset 0x7312 9848 bytes