Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5fbc1c266fd095d…

MALICIOUS

PDF

45.9 KB Created: 2020-09-16 22:00:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 96c59f4fc5e8181931d2929487c5a67b SHA-1: 0fef82d7d771189f6e7d610ddeebd44cade97f19 SHA-256: f5fbc1c266fd095dd5e87dc66b8535b1ecca4223cf67b29743a422c828aade9b
150 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, directing users to 'https://ttraff.me/wix?keyword=meow+wolf+mystery+explained'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links pointing to various domains, likely for SEO manipulation or to host further malicious content. The ML classifier strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains the primary malicious URL and other PDF links, suggesting a lure to external malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=meow+wolf+mystery+explained
    • http://tizirit.frenchbulldogrescueandadoption.com/uploads/1/3/0/8/130814328/vewakemam.pdf
    • http://files.alifeworthliving2.org/uploads/1/3/0/8/130874318/lenalaw-fowez-legojumafixixin-tunotababivofen.pdf
    • http://fewin.growingforwardnow.com/uploads/1/3/2/6/132682883/4fa98.pdf
    • http://piguzemav.breezyshoresmininubians.com/uploads/1/3/2/6/132681946/jesanudozatibek.pdf
    • http://vuparipoz.supportiveconceptionssurrogacy.com/uploads/1/3/1/0/131070289/zesunaf.pdf
    • http://files.olgabaptist.org/uploads/1/3/0/7/130776407/makotapiv-jozan-jakabiwunabafom-tezejore.pdf
    • https://2fd212b0-7704-4d0f-9519-55f335086eea.filesusr.com/ugd/704f6c_aed1cbc6c3774f7c8b95b9e888d30bca.pdf?index=true
    • https://e8a16423-4957-4ff9-b58d-77c33857e819.filesusr.com/ugd/76156b_9925128debd247b9b5ccbdad3a09afdb.pdf?index=true
    • https://f17a3399-fbf0-486a-86e6-509e6852ff0a.filesusr.com/ugd/76aeb6_07034d86e9fe4cb9a7104c1693dbd039.pdf?index=true
    • https://8bad02ed-2586-429d-9bfc-d0d9c7995159.filesusr.com/ugd/724fb5_3cf07ded5113467290b9e575a37bdab7.pdf?index=true
    • https://5fea425e-eef1-4f6a-ac5c-e1b7d9d108fe.filesusr.com/ugd/95bb70_0f9887257b994ecc803d753c69e7b2d1.pdf?index=true
    • https://fe1c3c4b-0fc2-494e-aef0-7090db30894e.filesusr.com/ugd/bfbc46_47a707f04ee049dd889664eed8a97ddd.pdf?index=true
    • https://d2046c84-eff3-4698-9675-7a40fc7bb410.filesusr.com/ugd/b85eb0_b0ba0ac1c31d466592243ab2a8d35927.pdf?index=true
    • https://9e9f0e4d-069d-431f-b25c-7a9a6d5bfa10.filesusr.com/ugd/4725f1_39ee1b16fa864d4381e7e6979aa30583.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_off00007553.bin
0ab162c5f1df1d205333175c9a992ba2996fa51f71e3d01f94a0d5160c25193a
pdf-font-stream PDF embedded font (sfnt) at offset 0x7553 5452 bytes
font_01_sfnt_off000087ef.bin
89a64096b3aad12836eff2bbaae3f8bd19ea8fe16f5370da6d6528e9863cd558
pdf-font-stream PDF embedded font (sfnt) at offset 0x87EF 10160 bytes