Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ada4e2fead772a0…

MALICIOUS

PDF

38.0 KB Created: 2020-08-02 04:49:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a1f0b1afcfa1bee07a2182919ab010da SHA-1: 667697bcdaa2a096c3f49f61da4dfe8d46a84588 SHA-256: 2ada4e2fead772a0dc6489a3348f3e1d5d2c3318ce4b430212e53799e76f89c8
150 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by multiple heuristics, including a critical alert for a redirector link to ttraff.com. The document body contains numerous embedded URLs, many pointing to Shopify domains, but the primary malicious indicator is the redirector. The presence of a link farm suggests an attempt to manipulate search engine results or distribute malicious content through seemingly benign links. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=how+to+write+to+a+file+c%252B%252B
    • http://files.tutystenac.com/uploads/1/3/1/8/131856567/wimivogudosilufok.pdf
    • http://files.asteadyhandfoundation.org/uploads/1/3/2/7/132740552/lizepuvofusa.pdf
    • http://files.gaterocks.com/uploads/1/3/1/4/131407274/puxovapeko_ragetapom.pdf
    • https://cdn.shopify.com/s/files/1/0431/4192/2977/files/john_deere_z255.pdf
    • https://cdn.shopify.com/s/files/1/0430/6275/5490/files/68436397864.pdf
    • https://cdn.shopify.com/s/files/1/0428/6903/1078/files/memejemuzidalatokuzenaxa.pdf
    • https://cdn.shopify.com/s/files/1/0435/0096/1947/files/97873577488.pdf
    • https://cdn.shopify.com/s/files/1/0440/0644/1110/files/27733558297.pdf
    • https://cdn.shopify.com/s/files/1/0432/4121/0024/files/nuxezijurotusisijilibolul.pdf
    • https://cdn.shopify.com/s/files/1/0437/8460/1752/files/gesavafaxunadeked.pdf
    • https://cdn.shopify.com/s/files/1/0427/6633/6166/files/78039186029.pdf
    • https://cdn.shopify.com/s/files/1/0430/4211/1650/files/wunofivoj.pdf
    • https://cdn.shopify.com/s/files/1/0430/6544/2455/files/52258024672.pdf
    • https://cdn.shopify.com/s/files/1/0430/6694/9786/files/56633252153.pdf
    • https://cdn.shopify.com/s/files/1/0431/9746/4731/files/25357167108.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_off000057fc.bin
156d527baf92e72bf97bd2c542da7b664c2be218232fbf188b0e6bf6d8ce708c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57FC 4752 bytes
font_01_sfnt_off00006843.bin
d063ce5054c3171bd82c8b67be6480dab4415004ba6b278767ded82e71408d6d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6843 10296 bytes

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