Malicious PDF — malware analysis report

Static analysis result for SHA-256 a08056ce5ce119e8…

MALICIOUS

PDF

46.4 KB Created: 2020-09-21 02:37:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 85aaca695f449a61ca045b0cf2b9d046 SHA-1: 81e58868664e5ba5b4134f0cba426e58807375a0 SHA-256: a08056ce5ce119e891d9e9b63546215835fd40064d9c4edd304deff6d9996f55
128 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, which is further supported by the presence of a PDF link farm heuristic. The document body, though partially corrupted, contains text related to 'Powers and paragons pdf free' and includes the malicious URL. The primary malicious URL, https://ttraff.link/wix?keyword=powers+and+paragons+pdf+free, is likely used to redirect the user to a malicious site, while the Shopify URLs appear to be part of a link farm designed to improve search engine ranking for malicious content.

Heuristics 4

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=powers+and+paragons+pdf+free
    • http://varibevuv.silikalphilippines.com/uploads/1/3/1/4/131406390/7805005.pdf
    • http://pamudeki.ragsdale-music.com/uploads/1/3/0/7/130739206/tobifuratazer.pdf
    • https://cdn.shopify.com/s/files/1/0437/7814/6462/files/du_b._ed_admission_2019_online_form.pdf
    • https://cdn.shopify.com/s/files/1/0435/6833/2959/files/codex_astartes.pdf
    • https://cdn.shopify.com/s/files/1/0436/1263/5299/files/vedimotikuvug.pdf
    • https://cdn.shopify.com/s/files/1/0440/9065/4870/files/23805260522.pdf
    • https://1de97844-87ab-4c14-b6a5-16a3dc6d56dd.filesusr.com/ugd/cac9e4_e62677e861b24d01a7fcb73edc13cd82.pdf?index=true
    • https://8e71e46e-0156-42bf-ab8f-aa6e84ce1d9b.filesusr.com/ugd/5a1791_9ad0df0403ea47d197b89d51f7a33f39.pdf?index=true
    • https://ee029580-e37a-47b1-b38a-93500dc2f3d2.filesusr.com/ugd/5ed537_94005f7e07714505a4070ced38926ab7.pdf?index=true
    • https://3f420e47-3b21-4c94-85b7-ffd60347cf67.filesusr.com/ugd/9757e7_64055100e27741f995c1bea7ec890270.pdf?index=true
    • https://2dbf8f1e-d3e9-4fa0-ad74-2db78d446c16.filesusr.com/ugd/4cd51e_954d687be12148bb99bd8cca4b0b8563.pdf?index=true
    • https://7d309562-59f1-4307-b092-34f22b73920a.filesusr.com/ugd/229b11_04e463a0fd8b4242b16a0162b3aa3722.pdf?index=true
    • https://ea9cf31a-dce3-4e54-93c9-616b54620a59.filesusr.com/ugd/6116da_8b7b1c908f7249f295b199e74634c4b9.pdf?index=true
    • https://b9af07e4-bd08-4abe-93a6-96c928b2670c.filesusr.com/ugd/665c20_f82989ab80ce4fe8a83a5f3f261528ff.pdf?index=true
    • 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://1de97844-87ab-4c14-b6a5-16a3dc6d56dd.filesusr.com/ugd/cac9e4_e62677e

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000076ff.bin
3823ad5eb6bb11df9876bfe12457ccedb1232ed2b0b3fc8dbe6a6601d94558a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76FF 5272 bytes
font_01_sfnt_off00008914.bin
b5af41e33926b42267664b92d6011fb8f9b5e663ccb243033163b54967e2793f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8914 10396 bytes

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