Malicious PDF — malware analysis report

Static analysis result for SHA-256 c15c45565b0ffba2…

MALICIOUS

PDF

41.3 KB Created: 2020-09-16 18:31:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cad2e4127687c7549b5d154b7310a353 SHA-1: 0888b38d894b92ac87f6c96800cf862bbf7b7f52 SHA-256: c15c45565b0ffba23e3e8343b9e513c0315c57e622787118e038f62561716b6e
128 Risk Score

Malware Insights

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

The PDF file contains a lure for 'Minecraft unblocked free for ipad' and embeds multiple links. One of these links, https://ttraff.club/wix?keyword=minecraft+unblocked+free+for+ipad, is identified as a malicious redirector. The document also functions as a link farm, directing users to numerous other PDFs, some of which are hosted on potentially benign platforms but contribute to the overall deceptive nature. The presence of a visual download button further supports the social engineering aspect of this attack.

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.club/wix?keyword=minecraft+unblocked+free+for+ipad
    • http://files.newenglandpowerlight.com/uploads/1/3/0/8/130873979/2090d8f8018cfb2.pdf
    • https://3e2d64b1-5779-4c6b-ad71-50e25058622d.filesusr.com/ugd/e643da_5009f80cbcdd42f491e234a90289260a.pdf?index=true
    • https://00ab5f35-bff0-42f8-b3a5-9c709dd102d3.filesusr.com/ugd/d5415a_77b6626309054234a20fa04d696a9254.pdf?index=true
    • https://1e23c6c1-8353-4330-8201-30fb12d5e459.filesusr.com/ugd/625844_db26f6fd97b24eb7b488c99b67dc7bdb.pdf?index=true
    • https://fa5801b5-de68-45c9-8e8e-732a82cd1967.filesusr.com/ugd/2c8d66_7921da934e13465cb7f8bbd80eefe14b.pdf?index=true
    • https://cd116e25-3da1-409f-b1ee-6d1c32635add.filesusr.com/ugd/f4de5e_b28b92bbd61c4771a8f67df38e57ba62.pdf?index=true
    • https://438c8ce7-a257-4f49-8135-75539e526e7e.filesusr.com/ugd/a8ca0f_d656369e1c6b40938dc9f1283ab6e9e8.pdf?index=true
    • https://f6496226-e696-453e-984e-c164ec7bd81a.filesusr.com/ugd/9cfd0a_21acd5036c954b2bb5cd157c04114d9a.pdf?index=true
    • https://2ccb5821-aa6a-4571-9e40-68c9d4e4952c.filesusr.com/ugd/48bf55_2a6982a33f82438786d39771bd82d9cd.pdf?index=true
    • https://a9d3945f-d792-46ba-97bf-f1761a0cbd34.filesusr.com/ugd/95089d_96b524dd8fdc4e45b7d81ff47c527d61.pdf?index=true
    • https://f2ec2dba-9bf1-49cb-adfb-6f4b94de5213.filesusr.com/ugd/bc4951_f4745e97c47749dc9cacf991f9e0fde9.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000650e.bin
1d7193d5bfab4c6f08615f203b59d50ea91027ba9aee8297bb10191675119073
pdf-font-stream PDF embedded font (sfnt) at offset 0x650E 5180 bytes
font_01_sfnt_off000076c3.bin
41afb66e5c0ccc9f5c3270a6c6288067dd087d52d47e138eb0886f79e2d563e9
pdf-font-stream PDF embedded font (sfnt) at offset 0x76C3 9948 bytes