Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0aaa18ce226cfc3…

MALICIOUS

PDF

46.4 KB Created: 2020-09-01 08:54:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7760273e395815de616e161b049d1015 SHA-1: d148baebe217770884d421bb3ffe7b8db8a15527 SHA-256: d0aaa18ce226cfc3a8795a13a187d63866a4270c9a36f08aa389a7f8ed971446
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded external links, with one heuristic specifically identifying it as a PDF link farm. The primary URL, 'https://ttraff.com/wix?keyword=aluminum+sheets+cheap', is flagged as a malicious redirector. While the document body contains garbled text, the presence of numerous links suggests an attempt to manipulate search engine results or direct 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.com/wix?keyword=aluminum+sheets+cheap
    • https://static.usrfiles.com/ugd/b8c837_b0045a5acf644ecd8e81c7dd61163492.pdf
    • https://static.usrfiles.com/ugd/b8c837_c428c105dd854a99a1b0d54081ed123b.pdf
    • https://static.usrfiles.com/ugd/4c1554_8f2a9efb91c94e2ab422378b7c5d1299.pdf
    • https://static.usrfiles.com/ugd/b8c837_7b1e7c6323bf4b9a92f753438ff76aec.pdf
    • https://static.usrfiles.com/ugd/b8c837_b680fbf460504cafb5037c88a2e77bf4.pdf
    • https://static.usrfiles.com/ugd/89363e_36c2c1c66eb14d9b9f6915f18074b0d8.pdf
    • https://cdn.shopify.com/s/files/1/0432/5389/1232/files/spongebob_credits_song.pdf
    • https://cdn.shopify.com/s/files/1/0433/3741/6869/files/rudabixan.pdf
    • https://cdn.shopify.com/s/files/1/0431/9690/7684/files/tumuwawasegovukonibeved.pdf
    • https://cdn.shopify.com/s/files/1/0428/3236/3676/files/wipobimubomaxaka.pdf
    • https://cdn.shopify.com/s/files/1/0441/3066/4600/files/love_yourself_answer_album_list.pdf
    • https://cdn.shopify.com/s/files/1/0430/7111/1330/files/soal_tkb_pendidikan_agama_islam.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rewosegukedisupagur.pdf
    • https://cdn.shopify.com/s/files/1/0430/4768/2201/files/55192065951.pdf
    • https://cdn.shopify.com/s/files/1/0433/9502/3013/files/a_k_47_gun_full_form.pdf
    • https://cdn.shopify.com/s/files/1/0431/5663/5812/files/purojixugokitem.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/
    • https://static.usrfiles.com/ugd/b8c837_b680fbf460504cafb5037c88a2e77b

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007843.bin
614903f8c3d3ef9e782bf7c6ba9ed9f8b1d0374fc6c69bb91cd50d47e310725f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7843 5064 bytes
font_01_sfnt_off0000895a.bin
ca977a6b5701aa0255c423c304ee20bbe78b01cd137fc32d9f34b86767bd3fbc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x895A 10308 bytes

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