Malicious PDF — malware analysis report

Static analysis result for SHA-256 9076927b863ae34a…

MALICIOUS

PDF

81.3 KB Created: 2020-08-23 08:26:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 71072639b139badf703c9a0cf44df6ec SHA-1: e8686b88fe890dd7a90d9f037547aec47a498d42 SHA-256: 9076927b863ae34a9fef5e43f619b087617b75fc34716b0e34e1b32b70f8f63c
120 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, identified as a 'PDF_SEO_LINK_FARM' heuristic. One of these links, 'https://ttraff.com/pify?keyword=forensic+files+soft+touch+worksheet+answers', is flagged as a 'PDF_MALICIOUS_REDIRECTOR_LINK'. This suggests the document is designed to lure users into clicking malicious URLs, likely leading to further compromise.

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=forensic+files+soft+touch+worksheet+answers
    • http://files.reikifortheplanet.com/uploads/1/3/2/3/132302815/5645773.pdf
    • http://files.osmacappella.com/uploads/1/3/2/3/132302940/setame.pdf
    • https://cdn.shopify.com/s/files/1/0428/4760/0807/files/89400269449.pdf
    • https://cdn.shopify.com/s/files/1/0434/0056/0805/files/gunokuzedati.pdf
    • https://cdn.shopify.com/s/files/1/0436/9186/8310/files/dopopevawowurufigixijakut.pdf
    • https://cdn.shopify.com/s/files/1/0441/3777/5256/files/jaledizolegub.pdf
    • https://cdn.shopify.com/s/files/1/0433/8168/6439/files/o_que__candombl.pdf
    • https://cdn.shopify.com/s/files/1/0433/9322/0758/files/89811693119.pdf
    • https://cdn.shopify.com/s/files/1/0429/9161/6153/files/danazaf.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/45865267400.pdf
    • https://cdn.shopify.com/s/files/1/0434/0108/5082/files/tapafozirovexuno.pdf
    • https://cdn.shopify.com/s/files/1/0431/9736/6436/files/tagogavonudu.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_off00010326.bin
f9582a12e4d7e77165b747e1ab0b7adbb3643842b38389de04c25a160abe9f4f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10326 5080 bytes
font_01_sfnt_off0001147a.bin
35986472fe790f5fd7b479065f1c687b8079870000ee37d1a7d944a600280b70		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1147A 10488 bytes

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