Malicious PDF — malware analysis report

Static analysis result for SHA-256 76d61bd1ebce9751…

MALICIOUS

PDF

45.1 KB Created: 2020-09-17 06:15:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 88a6ac497d7119ffcd6328bcb2c317fa SHA-1: c2e1a09e714fde39fb2abbc33fe8c34ce4bc9569 SHA-256: 76d61bd1ebce9751de4637d57cd8ff6a37f25fedf5215fa08481dd09a2fb424c
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, directing users to 'https://ttraff.me/wix?keyword=glory+movie+questions+and+answers+for+students'. The document body, though partially corrupted, also contains this URL, suggesting a lure to external content. The presence of a link farm heuristic further indicates an attempt to distribute malicious links.

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.me/wix?keyword=glory+movie+questions+and+answers+for+students
    • https://cdn.shopify.com/s/files/1/0432/4543/7083/files/christmas_video_tinyjuke.pdf
    • https://cdn.shopify.com/s/files/1/0427/8861/8396/files/95766375289.pdf
    • https://cdn.shopify.com/s/files/1/0429/7592/0282/files/logexubanekujema.pdf
    • https://cdn.shopify.com/s/files/1/0430/4207/8877/files/95433954343.pdf
    • https://cdn.shopify.com/s/files/1/0431/6377/9236/files/legasanepofa.pdf
    • https://505c6495-45f7-4e1e-b7de-106bc4633269.filesusr.com/ugd/314c35_49deb009db894a81934875863b8bd130.pdf?index=true
    • https://4f229da5-dffc-44d9-a69d-7495f994f96c.filesusr.com/ugd/99b222_d690cdf8eee54143860e9a583427b150.pdf?index=true
    • https://8d5756e0-9147-4449-b7a1-bcdf04d98f08.filesusr.com/ugd/132250_76620e0082f5434b917910ae65b54eb0.pdf?index=true
    • https://a813a4ad-d838-43a9-95c5-7a4e9135dd59.filesusr.com/ugd/4d548e_4adc546d86484e2587feeb206c865b7f.pdf?index=true
    • https://74ce74ed-e6b1-4d27-8bb7-05f295662852.filesusr.com/ugd/78c764_f5764644b5f84f87aa1b3e6ccf074e09.pdf?index=true
    • https://01436684-e2e0-46ab-a561-7d0a594fa8c0.filesusr.com/ugd/72ed28_9bef8c7d612d490a972444f05e738d1e.pdf?index=true
    • https://80077d12-8665-4b59-9137-357e6bdab217.filesusr.com/ugd/fe83c3_d09ffc90161c4acb88539f0ed79bcaf2.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_off0000716f.bin
b1848aa0f3172faf6a12ad718a6c0478687ff0348f946d7534085a7bdd74f49d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x716F 5464 bytes
font_01_sfnt_off0000840b.bin
b308060e62abdceb8f141599c22ea77dc6903d8c15345489ac2712daf5f2f291		 pdf-font-stream PDF embedded font (sfnt) at offset 0x840B 10364 bytes

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