Malicious PDF — malware analysis report

Static analysis result for SHA-256 aab59027b3cee206…

MALICIOUS

PDF

47.2 KB Created: 2020-08-09 01:03:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bf93900cdd30dc9318f729f3ff836a71 SHA-1: 45257ea47a31bfb62c7bf245c86b2bfd9bcea204 SHA-256: aab59027b3cee206fd38c7e097ba3444c5d9557e8dc72ec2e76774110e798ae8
150 Risk Score

Malware Insights

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

The PDF contains a high number of external links, many pointing to Shopify domains, but the primary malicious link is to 'ttraff.cc'. This URL is flagged as a malicious redirector, likely serving as a lure for further malicious activity. The document body, though heavily obfuscated, contains the text 'Black and white pictures for babies pdf' and the malicious URL, reinforcing the phishing pretext.

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.cc/pify?keyword=black+and+white+pictures+for+babies+pdf
    • http://files.practicallywholesomerd.com/uploads/1/3/0/8/130874139/rixoweb.pdf
    • http://xoxupulo.santiagolopezphoto.com/uploads/1/3/1/3/131383483/2792786.pdf
    • http://files.augustapickleball.org/uploads/1/3/1/6/131636941/zuluja.pdf
    • http://files.lafemmestyling.com/uploads/1/3/1/1/131163590/429caab270eac2c.pdf
    • http://seluru.paraspear.com/uploads/1/3/1/8/131871721/65e69919a.pdf
    • http://files.practically
    • https://cdn.shopify.com/s/files/1/0428/3239/6447/files/belajar_membaca_alquran.pdf
    • https://cdn.shopify.com/s/files/1/0431/6954/6395/files/mamixadidobu.pdf
    • https://cdn.shopify.com/s/files/1/0436/7230/5817/files/34453253335.pdf
    • https://cdn.shopify.com/s/files/1/0437/9652/9313/files/subject_verb_agreement_sentences.pdf
    • https://cdn.shopify.com/s/files/1/0430/7025/9357/files/51091546654.pdf
    • https://cdn.shopify.com/s/files/1/0428/0087/3631/files/38684103978.pdf
    • https://cdn.shopify.com/s/files/1/0428/7257/0012/files/27123252342.pdf
    • https://cdn.shopify.com/s/files/1/0429/9590/8761/files/wofikobofisixuxam.pdf
    • https://cdn.shopify.com/s/files/1/0431/7426/4993/files/ritivodosiz.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/widizosatadusuzovasovodas.pdf
    • https://cdn.shopify.com/s/files/1/0430/6203/4589/files/xinatefofud.pdf
    • https://cdn.shopify.com/s/files/1/0437/1061/1605/files/90884863656.pdf
    • https://cdn.shopify.com/s/files/1/0433/9279/4774/files/92429338972.pdf
    • https://cdn.shopify.com/s/files/1/0433/2732/4310/files/87865013896.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_off000078c1.bin
87c43943074d24c7d01e3bdf8c7b3dab39299d294156e2ee4506c9ef9a8b7f47		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78C1 5588 bytes
font_01_sfnt_off00008bc9.bin
57e779771b98ebf9008e43d67b9618875e7cbc20e6d7bce04d1a5359204f07d0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8BC9 10332 bytes

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