Malicious PDF — malware analysis report

Static analysis result for SHA-256 386589bc31c7ab24…

MALICIOUS

PDF

36.1 KB Created: 2020-08-31 21:16:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7a63d75037362ba8834a7a7e53ef5068 SHA-1: 4c2146c4e6a0fa74a08531c797b971ac52efea63 SHA-256: 386589bc31c7ab24afc1f78027c2db2deda47b30af39d5b02e73795df8164d92
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including one identified as a malicious redirector. The document body, though partially corrupted, contains text suggesting a lure related to a 'completed business plan pdf' and includes the malicious URL. This indicates a phishing attempt to redirect users to potentially harmful content.

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.link/wix?keyword=completed+business+plan+pdf
    • https://static.usrfiles.com/ugd/d43733_b03c77fec38c43e2ace1a096d0237d06.pdf
    • https://static.usrfiles.com/ugd/b8c837_bf703661b1b440a5b9a3181c2ce5b30c.pdf
    • https://static.usrfiles.com/ugd/ea5d7b_9132393f3a4b4f38905c8704e3cc07ca.pdf
    • https://static.usrfiles.com/ugd/89c6ad_69fab1cc25bf468eb6b594573a47a0d7.pdf
    • https://cdn.shopify.com/s/files/1/0462/1503/7082/files/jeopardy_online_test_answers_april_2019.pdf
    • https://cdn.shopify.com/s/files/1/0432/6712/9504/files/59384686299.pdf
    • https://cdn.shopify.com/s/files/1/0438/4142/1472/files/gijigotetexowix.pdf
    • https://cdn.shopify.com/s/files/1/0430/1006/4537/files/peter_dawson_functional_occlusion.pdf
    • https://static.usrfiles.com/ugd/d5cf39_7d016865cdce4b7fa0b0e9c954429f68.pdf
    • https://static.usrfiles.com/ugd/6260fe_47c9f0e092cb48a8b6c2af1915438ff4.pdf
    • https://static.usrfiles.com/ugd/b8c837_c808b6b09c1e45648afa93b61cb4a8ea.pdf
    • https://static.usrfiles.com/ugd/67f5f7_64e270bef2014cd3bf39b12a5c3c936b.pdf
    • https://static.usrfiles.com/ugd/909b15_24d7e1b5451e446e97d6fc68ddb74377.pdf
    • https://cdn.shopify.com/s/files/1/0448/2508/4065/files/kenmore_90_series_dryer_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/3313/2184/files/81210947288.pdf
    • https://cdn.shopify.com/s/files/1/0428/9980/0217/files/budgie_smugglers_size_guide.pdf
    • https://cdn.shopify.com/s/files/1/0434/7245/3797/files/behaviourist_theory_of_learning_in_education.pdf
    • https://cdn.shopify.com/s/files/1/0430/7465/0261/files/59142156035.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_off000051ca.bin
dd6ca50000bb077dec04c05d043b8e1144d9a851ea7b724f2d2ccc5544ecd7e6
pdf-font-stream PDF embedded font (sfnt) at offset 0x51CA 5136 bytes
font_01_sfnt_off00006326.bin
57a40052f5a56218e137c408e21af2cdbb7f30abc9ace4d0321936a2a5c88224
pdf-font-stream PDF embedded font (sfnt) at offset 0x6326 9532 bytes