Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ea60314f324941b…

MALICIOUS

PDF

54.4 KB Created: 2020-08-30 17:09:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 945542d624d9eb97d6bb13bda107b4fc SHA-1: 7fefa15a76bdd3181c16ff92fe23818249d791ab SHA-256: 7ea60314f324941b33daf651179372d8448e657babc71a3722231edcdf197acd
120 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.cc, which is likely intended to lead the user to a malicious site. The document body, though heavily obfuscated, appears to contain the same URL, suggesting a lure to trick the user into clicking it. The presence of numerous external links, many pointing to benign content, suggests a link farm or SEO poisoning tactic to increase the visibility of the malicious link.

Heuristics 3

  • 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.
  • 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/wix?keyword=diagnostico+de+fallas+en+sistemas+electromecanicos
    • https://static.usrfiles.com/ugd/b8c837_7d9c1b7c5fdc412f8793aac7ea0c75cd.pdf
    • https://static.usrfiles.com/ugd/b8c837_c951c817625f4eaab032288f870db976.pdf
    • https://static.usrfiles.com/ugd/2b25b5_b7d3c52500f247b7b7075b77161b8b60.pdf
    • https://static.usrfiles.com/ugd/b8c837_01691dad6cbc42808a6100412fca9911.pdf
    • https://static.usrfiles.com/ugd/b8c837_44b0347737ab4394b3e02defa38c2303.pdf
    • https://cdn.shopify.com/s/files/1/0432/1358/6600/files/36767499301.pdf
    • https://cdn.shopify.com/s/files/1/0431/3281/3473/files/msrtc_advertisement_2019.pdf
    • https://cdn.shopify.com/s/files/1/0428/0814/8127/files/wemilajokorolajivunuxadix.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kulabegidubonigupux.pdf
    • https://cdn.shopify.com/s/files/1/0433/6487/6444/files/tapal.pdf
    • https://cdn.shopify.com/s/files/1/0435/6905/3854/files/aston_martin_valkyrie_amr_track_performance_pack.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_off000093f3.bin
9b3c356230c85780d7c517ca52af38125af7e257caed456941be56222859fd56		 pdf-font-stream PDF embedded font (sfnt) at offset 0x93F3 5340 bytes
font_01_sfnt_off0000a601.bin
a67c089a0d41b4ce793381e1bf9168fe164400a5d26f09b1802759dd433c7574		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA601 11260 bytes

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