Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd1d3f3fd5a4fbac…

MALICIOUS

PDF

46.6 KB Created: 2020-09-01 06:56:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: aa4bd75f2ebc55ed5458324f2741382f SHA-1: 22ca99648c7026b5e586cafef73f2563546d23d2 SHA-256: bd1d3f3fd5a4fbacdb6f0a1de25a87d5b4fab88e205187c8e16a9149f6ffcfac
128 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a download button, which is a common lure for phishing or malware delivery. The document body, though heavily obfuscated, contains the target URL. The PDF also exhibits characteristics of a link farm, potentially for SEO poisoning or distributing further 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.me/wix?keyword=weekly+budget+planner+template+printable
    • https://static.usrfiles.com/ugd/10e3af_318fea4ec02e4a21a7368a60d3fc21d6.pdf
    • https://static.usrfiles.com/ugd/b8c837_b665a348b6144919aacb5c9f5cfc3fc8.pdf
    • https://static.usrfiles.com/ugd/0f1814_3c607db4a14d48469f9a4baaacb8bd39.pdf
    • https://static.usrfiles.com/ugd/735424_b7babd4b53984d77b5a91c2c036d309b.pdf
    • https://cdn.shopify.com/s/files/1/0428/5893/8531/files/4435952942.pdf
    • https://cdn.shopify.com/s/files/1/0437/4947/4453/files/kedojoxol.pdf
    • https://static.usrfiles.com/ugd/a91264_cb1666aef3eb417a9a9dbde7e592964c.pdf
    • https://static.usrfiles.com/ugd/07625c_403be1185ea8471893f7da7c87195384.pdf
    • https://static.usrfiles.com/ugd/c8d394_327c3b7b913c4a518345f231046ea302.pdf
    • https://static.usrfiles.com/ugd/b7306e_15bd7eed12224907bb8cdb7cdc1a409a.pdf
    • https://static.usrfiles.com/ugd/b8c837_6ecce2c2441a42d0b8ca3ab46d43b0e0.pdf
    • https://static.usrfiles.com/ugd/b8c837_6694744333924d179f20ebd4164a7612.pdf
    • https://static.usrfiles.com/ugd/ab922d_5226d6b2fc8c4adab488e95cb6773048.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_off00006abf.bin
4b1e57da6e596b15d38b709e188b324139fcfd55162658425bdeb3d357f30611		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6ABF 5192 bytes
font_01_sfnt_off00007c58.bin
29a503020ad5f8592260c79a2bdfc7ed01466fccb59c8aad5b83cabe3dc25993		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C58 10060 bytes
font_02_sfnt_off00009ecd.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9ECD 4324 bytes

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