Malicious PDF — malware analysis report

Static analysis result for SHA-256 b419f41af2553dee…

MALICIOUS

PDF

53.1 KB Created: 2020-08-02 08:47:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 82ccd5b3b5dd26b8f199f88507ad9e17 SHA-1: 9d193e649803e082d9820a6b9a862c3e033efb9a SHA-256: b419f41af2553dee514b166fb61f585a969da87c530a878c8b85062cda7d60d1
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, including one identified as a malicious redirector. This redirector likely serves as a lure to a phishing or malware distribution site. The presence of a large number of external links also suggests a link farm, potentially for SEO manipulation or to obscure the final malicious destination. No scripts were extracted, and the document body was unreadable.

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=%25D0%25BA%25D0%25B0%25D0%25BA+%25D0%25B8%25D1%2581%25D0%25BF%25D0%25BE%25D0%25BB%25D1%258C%25D0%25B7%25D0%25BE%25D0%25B2%25D0%25B0%25D1%2582%25D1%258C+%25D1%2582%25D0%25BE%25D1%2580%25D1%2580%25D0%25B5%25D0%25BD%25D1%2582+%25D0%25B2+%25D0%25BE%25D0%25B1%25D1%2585%25D0%25BE%25D0%25B4+%25D0%25BF%25D1%2580%25D0%25BE%25D0%25B2%25D0%25B0%25D0%25B9%25D0%25B4%25D0%25B5%25D1%2580%25D0%25B0
    • http://files.georgetownvineyards.com/uploads/1/3/1/4/131453486/aee1f62e92a7.pdf
    • http://files.aaronlafond.com/uploads/1/3/1/3/131384081/553efaa7fc.pdf
    • http://files.freethingsforenglishteachers.com/uploads/1/3/1/3/131383823/9135308.pdf
    • http://files.pattyspetalsgodfrey.com/uploads/1/3/1/3/131381679/1662468.pdf
    • http://files.whoanellypress.com/uploads/1/3/2/7/132740182/2270078.pdf
    • https://cdn.shopify.com/s/files/1/0436/5864/1561/files/62498588111.pdf
    • https://cdn.shopify.com/s/files/1/0434/0888/3870/files/xuteledupe.pdf
    • https://cdn.shopify.com/s/files/1/0432/9222/9787/files/73510810404.pdf
    • https://cdn.shopify.com/s/files/1/0437/4275/7029/files/26202831214.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tevegijetowid.pdf
    • https://cdn.shopify.com/s/files/1/0437/1313/4743/files/81916052070.pdf
    • https://cdn.shopify.com/s/files/1/0430/0154/4863/files/63381931883.pdf
    • https://cdn.shopify.com/s/files/1/0428/6355/8815/files/javafx_get_screen_size.pdf
    • https://cdn.shopify.com/s/files/1/0430/5669/3397/files/lukunep.pdf
    • https://cdn.shopify.com/s/files/1/0434/6344/2598/files/watizobani.pdf
    • https://cdn.shopify.com/s/files/1/0429/5812/7270/files/96053578641.pdf
    • https://cdn.shopify.com/s/files/1/0435/6761/2065/files/t_c3_a9a_leoni.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_off00007d37.bin
8e735a861a603d72eee7135e649867268c2ff28dc6615b259a8522da05521781		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D37 6100 bytes
font_01_sfnt_off00009173.bin
796a22e301ecd1c4afff2d7d4355962d2b30e134124921c5fef03e51b228781e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9173 16428 bytes

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