Malicious PDF — malware analysis report

Static analysis result for SHA-256 2234e96fb51b0c45…

MALICIOUS

PDF

39.4 KB Created: 2020-07-19 06:00:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 043360c8015347def4c3c92d27651d11 SHA-1: 16800b2f4598ebe68c0b890ec7cb7ff1c62a81c9 SHA-256: 2234e96fb51b0c458e3c6f7765051ad5b5a850c55eb8323998d573f3617205a1
150 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.com, which is disguised as a search result for a cooktop manual. This suggests a phishing or scam attempt to lure users to malicious content. The PDF also contains a large number of external links, many hosted on Shopify, which is characteristic of SEO link farm abuse to improve search engine ranking for malicious content.

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/wb?keyword=miele%20schott%20ceran%20cooktop%20manual
    • http://files.animalwonders.org/uploads/1/3/2/8/132814067/1328505.pdf
    • http://files.monetthistory.com/uploads/1/3/1/8/131860645/8622058.pdf
    • http://files.newseedspriory.org/uploads/1/3/1/4/131438708/5534735.pdf
    • http://files.monsteravisual.com/uploads/1/3/2/7/132710683/firavebagesuxe.pdf
    • http://files.lifeenergypowers.com/uploads/1/3/0/8/130814868/wolokudu.pdf
    • http://files.monsteravisu
    • https://cdn.shopify.com/s/files/1/0431/1659/3312/files/40296313748.pdf
    • https://cdn.shopify.com/s/files/1/0436/4248/6934/files/vabezaga.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/47171602999.pdf
    • https://cdn.shopify.com/s/files/1/0431/7901/6360/files/tesapen.pdf
    • https://pusivogaj.files.wordpress.com/2020/06/rekomowekulikaxenepaburiw.pdf
    • https://wifuxew.files.wordpress.com/2020/06/55659417430.pdf
    • https://xarinupe.files.wordpress.com/2020/06/13792401275.pdf
    • https://cdn.shopify.com/s/files/1/0433/6055/1070/files/mikovonipubikasafaro.pdf
    • https://cdn.shopify.com/s/files/1/0433/7526/3909/files/73410229918.pdf
    • https://cdn.shopify.com/s/files/1/0430/8307/1650/files/19774924299.pdf
    • https://cdn.shopify.com/s/files/1/0434/6822/6725/files/dokofinusojavajejufoke.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57355052908.pdf
    • https://cdn.shopify.com/s/files/1/0432/0228/1633/files/28488966936.pdf
    • https://cdn.shopify.com/s/files/1/0431/2009/9488/files/29923942322.pdf
    • https://cdn.shopify.com/s/files/1/0429/8945/3473/files/gefojogagiwafitevul.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_off00005f2e.bin
9d280b4d091b301950a44865979dda5fb94a41236776c9884fc9c565aa36ef1c
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F2E 5124 bytes
font_01_sfnt_off00007069.bin
244408299f85b9aa000b331810559df53a70a1e05b3911bc19da24d1f28f7608
pdf-font-stream PDF embedded font (sfnt) at offset 0x7069 9312 bytes