Malicious PDF — malware analysis report

Static analysis result for SHA-256 cac01733320353c3…

MALICIOUS

PDF

45.1 KB Created: 2020-08-25 21:15:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6fd2935b87163e4ad74d6e14632c52ef SHA-1: 297a9a8d6919d4c1e7b82c0dc34732018bd8d397 SHA-256: cac01733320353c30b968dd32c9aff01b8700cf80408c6698ad2e226b48aa395
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a significant number of embedded links, with one identified as a malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, suggesting an attempt to manipulate search results or distribute content through a link farm. The primary malicious URL identified is https://ttraff.cc/pify?keyword=la+pandilla+dela+ardilla+coleccion, which is flagged as a malicious redirector.

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=la+pandilla+dela+ardilla+coleccion
    • http://files.nutritiongirl.org/uploads/1/3/1/4/131453674/josawabuzi.pdf
    • http://files.drdorsbbq.com/uploads/1/3/2/8/132815752/jukevutinipepop_xubegetafo.pdf
    • http://files.therecplace.com/uploads/1/3/1/6/131636956/8053407.pdf
    • https://cdn.shopify.com/s/files/1/0432/1198/0964/files/6570170555.pdf
    • https://cdn.shopify.com/s/files/1/0463/8821/5963/files/97205511785.pdf
    • https://cdn.shopify.com/s/files/1/0437/4675/4714/files/free_menu_planner_template_with_grocery_list.pdf
    • https://cdn.shopify.com/s/files/1/0429/6055/2085/files/kudevanujofidejokusara.pdf
    • https://cdn.shopify.com/s/files/1/0428/2197/6220/files/solidworks_standard_parts.pdf
    • https://cdn.shopify.com/s/files/1/0428/8489/0790/files/27295953925.pdf
    • https://cdn.shopify.com/s/files/1/0437/5917/3790/files/adobe_reader_download_english.pdf
    • https://cdn.shopify.com/s/files/1/0434/7153/6285/files/4565323059.pdf
    • https://cdn.shopify.com/s/files/1/0436/8039/9513/files/jodibetokokuvasidu.pdf
    • https://cdn.shopify.com/s/files/1/0427/8494/8380/files/mowugowelijopejijubo.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_off0000707e.bin
8cc0833c9559e89bd00b72c4f527ea27052b7994644b2949f58dc5b4322a7e07		 pdf-font-stream PDF embedded font (sfnt) at offset 0x707E 4832 bytes
font_01_sfnt_off000080f0.bin
dd3f0d7e09178f312914a46af756d55fb95d01a331fe5dc7b6134ee9dcc7cc8b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80F0 11928 bytes

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