Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdd0663a42e7791d…

MALICIOUS

PDF

37.4 KB Created: 2020-08-02 21:52:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8f6f207fcf435f9bbacc66edb3619065 SHA-1: 470c480c595e1466a649d2bb448e06991e5947f9 SHA-256: bdd0663a42e7791d7e372cf5930ec8fd15c52520e9ea9240f6a0081ee88e3280
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm heuristic, indicating a large number of embedded URLs, many hosted on Shopify. The document body, though heavily obfuscated, contains a reference to the malicious URL. The primary attack vector appears to be a user clicking the embedded malicious link, leading to a potentially harmful destination.

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.com/pify?keyword=messi+2016+wallpaper
    • http://files.thoughtandbelief.com/uploads/1/3/1/6/131606121/gapob-jagudiboze.pdf
    • http://files.menniescapens.com/uploads/1/3/1/4/131453645/798ffe24f545e4.pdf
    • http://files.lighthousecanecorso.com/uploads/1/3/0/9/130968984/5233536.pdf
    • https://cdn.shopify.com/s/files/1/0428/7902/5318/files/amazing_grace_my_chains_are_gone_key_of_d.pdf
    • https://cdn.shopify.com/s/files/1/0433/0238/7867/files/xexevadodebo.pdf
    • https://cdn.shopify.com/s/files/1/0434/5564/3813/files/retezoz.pdf
    • https://cdn.shopify.com/s/files/1/0437/5497/9477/files/womisefiranotexote.pdf
    • https://cdn.shopify.com/s/files/1/0431/2465/4241/files/zebiw.pdf
    • https://cdn.shopify.com/s/files/1/0435/8114/5243/files/45275970584.pdf
    • https://cdn.shopify.com/s/files/1/0434/0521/3854/files/63161309910.pdf
    • https://cdn.shopify.com/s/files/1/0432/2790/6206/files/57735407311.pdf
    • https://cdn.shopify.com/s/files/1/0428/6159/2742/files/weledamoweso.pdf
    • https://cdn.shopify.com/s/files/1/0433/7047/9768/files/rikemuveviselitamilarejo.pdf
    • https://cdn.shopify.com/s/files/1/0429/4891/9450/files/74635444087.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_off000054d3.bin
f3e432ce7844bb58d5499bae75cad825b5b9bfb05f001004a6b128421c855451		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54D3 5392 bytes
font_01_sfnt_off00006753.bin
fa75547d6abb7118fc589b4bb18f03079f73a23d2b559489b5d5221572149a1d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6753 9920 bytes

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