Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe4433cbeb527e9e…

MALICIOUS

PDF

52.8 KB Created: 2020-08-05 11:02:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 43f8315b8ce9bdd368ac5216c7372aad SHA-1: 8d7f7c735488c7c1b5383b26a200462ecffe88e4 SHA-256: fe4433cbeb527e9e39ef8da2277972d281f44abcd793b6119099e6fb0b2ef297
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=html+color+codes+pdf+download'. The document body also contains this URL and a link to a Shopify domain, suggesting a lure to download content. The presence of numerous external PDF links further indicates a link farm or redirection strategy. No scripts were extracted from this sample.

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=html+color+codes+pdf+download
    • http://files.sstrainingsolutions.com/uploads/1/3/2/6/132681448/nugipo.pdf
    • http://files.theitaliantip.com/uploads/1/3/1/4/131453198/2358047.pdf
    • http://files.marcelastrasdas.com/uploads/1/3/1/4/131454352/906139.pdf
    • https://cdn.shopify.com/s/files/1/0437/1061/1605/files/95356945468.pdf
    • https://cdn.shopify.com/s/files/1/0431/8907/6117/files/12122455194.pdf
    • https://cdn.shopify.com/s/files/1/0431/1495/4908/files/82350132736.pdf
    • https://cdn.shopify.com/s/files/1/0432/9517/8902/files/laboratory_manual_in_physical_geology_10th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0430/4207/8877/files/15945517071.pdf
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/75603146794.pdf
    • https://cdn.shopify.com/s/files/1/0430/8795/4073/files/bordeaux_map.pdf
    • https://cdn.shopify.com/s/files/1/0431/2753/7828/files/13624654386.pdf
    • https://cdn.shopify.com/s/files/1/0434/4646/8769/files/89525587240.pdf
    • https://cdn.shopify.com/s/files/1/0428/3393/6547/files/fumeperurolojadorubaw.pdf
    • https://cdn.shopify.com/s/files/1/0433/3839/9902/files/fakugi.pdf
    • https://cdn.shopify.com/s/files/1/0432/8249/7700/files/banting_green_list_2020.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000065f8.bin
ae896406203b5a0fea407c2171ff6a6691dab62e5522b27b8253155ac91ae526		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65F8 5092 bytes
font_01_sfnt_off00007738.bin
5c3b5996fce191ea51b94fdd787fab42144d01679bf76d50dc17940fc4435532		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7738 24260 bytes
font_02_sfnt_off0000b7e5.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB7E5 4324 bytes

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