Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b48c04fc7e21692…

MALICIOUS

PDF

43.1 KB Created: 2020-09-18 05:06:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 80b06019e03bfc9d357212318047c132 SHA-1: 411b5fbc61f94ecff82dc0c2b601a8eaddac899d SHA-256: 1b48c04fc7e21692ea2b7e89ef50cabe51effb1f6a00959e237129f5f1a6707c
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.link/wix?keyword=agony+the+portal+sequel'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, with the first being 'https://cdn.shopify.com/s/files/1/0429/6228/8793/files/melutiwer.pdf'. The document body also contains these URLs, suggesting the primary intent is to trick the user into clicking the 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.link/wix?keyword=agony+the+portal+sequel
    • https://cdn.shopify.com/s/files/1/0429/6228/8793/files/melutiwer.pdf
    • https://cdn.shopify.com/s/files/1/0440/2393/9237/files/numagivadozi.pdf
    • https://cdn.shopify.com/s/files/1/0435/6197/5971/files/dotezarixusugig.pdf
    • https://cdn.shopify.com/s/files/1/0427/8625/9100/files/sugozuwojukipuwilapi.pdf
    • https://cdn.shopify.com/s/files/1/0432/8960/8360/files/figiwa.pdf
    • https://97752b8a-c4fd-4c77-b139-10fa0e6641f2.filesusr.com/ugd/1e52da_f09bd9bc0d2d429cbc2e18255abd4ea3.pdf?index=true
    • https://642cf238-6c4a-4996-82cc-2001eca44bb0.filesusr.com/ugd/429b25_35024ed1ac8e47b394c25443cd4d46d8.pdf?index=true
    • https://44f69c56-9b4b-4884-9cc5-d641ed53a3c5.filesusr.com/ugd/1849a1_d0827afd45a14eed8848709844fe9eaa.pdf?index=true
    • https://b1845c9f-86dc-4462-9a19-349926dd32bc.filesusr.com/ugd/dcfb95_59e6707d72a441c1b7218fc6bd7a82ed.pdf?index=true
    • https://ad19251b-1ee2-4f83-aa4f-1c9a913bf39c.filesusr.com/ugd/ee9d3f_08633f498f0f41b3b06d61f086706d5b.pdf?index=true
    • https://ccd9580c-e841-4941-ab99-8bf07c3dbe18.filesusr.com/ugd/9f69bd_f6a02ff36e564262ad8b449a7fe55ebd.pdf?index=true
    • https://12c8a842-d177-4343-91b7-56e2f243c864.filesusr.com/ugd/7a359d_0c2d42f3b9e44928ab4964d51c821ed6.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0433/3184/6296/files/38900425994.pdf
    • https://cdn.shopify.com/s/files/1/0435/3074/8055/files/laminator_sheets_kmart.pdf
    • https://cdn.shopify.com/s/files/1/0432/9052/5849/files/jutamemufaruwojixeluzupin.pdf
    • https://cdn.shopify.com/s/files/1/0437/5805/9671/files/haproxy_logs_format.pdf
    • https://cdn.shopify.com/s/files/1/0430/4338/9597/files/artificial_intelligence_lecture_notes.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_off00006a67.bin
016156c969c9f9a2cdb3bca1dc9579cbf50a594b9b5ee4549f8711af745e20d3
pdf-font-stream PDF embedded font (sfnt) at offset 0x6A67 5296 bytes
font_01_sfnt_off00007c6e.bin
322b9bc8d4076ac79a24428eb32bc8489b67d4717b23ab7129cb96fc78cb8b4e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C6E 10360 bytes