Malicious PDF — malware analysis report

Static analysis result for SHA-256 b941a167e58351f6…

MALICIOUS

PDF

46.8 KB Created: 2020-08-31 02:03:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8bbdc53af0c4203f972b18c66a14fa07 SHA-1: 5443c2401e80b34c0086c9f832d361ef146f9cf9 SHA-256: b941a167e58351f683d58c44b836e656c229ced3b43a0e5e8c93f8d7f5cb862b
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.link, which is designed to lure users into downloading potentially unwanted software. The document body, though heavily obfuscated, contains text referencing 'Diablo 2 lod download', aligning with the redirector's keyword. The presence of a link farm further suggests a malicious intent to drive traffic to external sites.

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.link/wix?keyword=diablo+2+lod+download
    • https://static.usrfiles.com/ugd/f96b02_b52ea7035a1045a7af79f8cda886f136.pdf
    • https://static.usrfiles.com/ugd/87a178_dcec080b082843469420e0b53c0e4cdd.pdf
    • https://static.usrfiles.com/ugd/1f2646_60916d6ff204449eb95b2c03ebb4f89f.pdf
    • https://static.usrfiles.com/ugd/12f4eb_e3344b97b65c4fbbb85dac2d6b385697.pdf
    • https://static.usrfiles.com/ugd/b98abb_393ba82abb2e475dafaeb32a44b4c5c1.pdf
    • https://static.usrfiles.com/ugd/e3ff21_2af91502ac9f472e8fde127a78e5f76f.pdf
    • https://static.usrfiles.com/ugd/89363e_690b3da41b4040eab1494503e62832de.pdf
    • https://cdn.shopify.com/s/files/1/0459/1249/0133/files/90479169545.pdf
    • https://cdn.shopify.com/s/files/1/0434/9899/5864/files/luvedutebomufi.pdf
    • https://cdn.shopify.com/s/files/1/0434/2376/0536/files/pimoxogetiru.pdf
    • https://cdn.shopify.com/s/files/1/0428/2168/1315/files/tudiwamu.pdf
    • https://cdn.shopify.com/s/files/1/0429/3053/6614/files/56950435725.pdf
    • https://cdn.shopify.com/s/files/1/0433/0009/4112/files/boximeletikuba.pdf
    • https://cdn.shopify.com/s/files/1/0430/5689/0013/files/pubikunekadej.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c7f.bin
f95a65364742c8e33181efb29f0a86ee001ab1d4f9a091b1eeb02d14ce87d23f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C7F 4500 bytes
font_01_sfnt_off00007bd1.bin
1d4ce7d24becce8394d6db2c623aa62427ff1005a970d9cc475add11376bd088		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BD1 10788 bytes
font_02_sfnt_off0000a0af.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA0AF 4324 bytes

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