Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd2ffc7500ef9c76…

MALICIOUS

PDF

61.3 KB Created: 2020-07-26 02:43:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5bec0ef21664a029ba2d970a49535646 SHA-1: 425c457aff8d8c10c469e08a2b03c1b44bfd857d SHA-256: dd2ffc7500ef9c762f03e7016e588db8f48178275cb00684c62338a1d4ae59db
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to Shopify domains, but also includes a critical link to a known malicious redirector at 'ttraff.com'. This indicates a likely attempt to redirect users to malicious content or phishing pages. The heuristic firings confirm the presence of a malicious redirector link and a link farm, suggesting a coordinated effort to drive traffic to potentially harmful 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.com/wb?keyword=english%20corpus%20linguistics%20an%20introduction%20pdf
    • http://files.ari2extensions.com/uploads/1/3/2/6/132695472/zikubukojawowufeg.pdf
    • http://files.amandaleightonphoto.com/uploads/1/3/1/4/131437018/mefidijiponut.pdf
    • http://files.ruirosalab.com/uploads/1/3/0/8/130874672/8104804.pdf
    • http://files.winetruffleboutique.com/uploads/1/3/0/8/130874110/teregede.pdf
    • http://files.karensteward.com/uploads/1/3/0/7/130776484/6020f9e.pdf
    • https://cdn.shopify.com/s/files/1/0429/6281/3084/files/kefadedexolubevadiwoguf.pdf
    • https://cdn.shopify.com/s/files/1/0431/1675/7153/files/60285872701.pdf
    • https://cdn.shopify.com/s/files/1/0435/2350/6336/files/xavapawif.pdf
    • https://cdn.shopify.com/s/files/1/0433/1238/2116/files/webanetiferaloz.pdf
    • https://cdn.shopify.com/s/files/1/0434/4355/2416/files/90820267541.pdf
    • https://cdn.shopify.com/s/files/1/0430/7809/0901/files/dobina.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/96056065099.pdf
    • https://cdn.shopify.com/s/files/1/0431/9769/4114/files/88316931588.pdf
    • https://cdn.shopify.com/s/files/1/0436/8013/7369/files/16766057030.pdf
    • https://cdn.shopify.com/s/files/1/0431/2177/0657/files/gejizajulowuso.pdf
    • https://cdn.shopify.com/s/files/1/0431/0764/7639/files/6154881028.pdf
    • https://cdn.shopify.com/s/files/1/0434/1425/7815/files/dinizelopula.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_off0000b31c.bin
4b634126d3609c6356ca131544664b79c8033d61ba7ece837d2ab230cc80191a
pdf-font-stream PDF embedded font (sfnt) at offset 0xB31C 5140 bytes
font_01_sfnt_off0000c483.bin
e06b8940a72b1c3562fb37ca85df9e923a71d97d97b52c8270dfb6c4f7ed8b72
pdf-font-stream PDF embedded font (sfnt) at offset 0xC483 10440 bytes