Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ffe4d482da191f5…

MALICIOUS

PDF

43.0 KB Created: 2020-09-05 20:59:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 415a8fc88981d8a30ea3c1929247f4a5 SHA-1: 144db9c2c5aba3550595d31f5c7c4510e2e5978d SHA-256: 4ffe4d482da191f57c5610f7c73c188f69620e407e9b87fa865ef4d171619869
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, which is also present in the document body. The file also exhibits characteristics of a PDF link farm, with numerous links pointing to external PDFs. The primary malicious URL identified is https://ttraff.club/wix?keyword=ahsaas+movie+song, which is likely used to redirect the user to a malicious site. No scripts were extracted from this sample.

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.club/wix?keyword=ahsaas+movie+song
    • https://static.usrfiles.com/ugd/eb4c03_c3aaf055e98d4ccea929835c5e28f63c.pdf
    • https://static.usrfiles.com/ugd/f967ac_73d592d53bfb44efb04d4c4e2fce14dc.pdf
    • https://static.usrfiles.com/ugd/b8c837_4402322f5fa04236b3d0c8e7f7e9091b.pdf
    • https://static.usrfiles.com/ugd/79cb75_45166e7a7a8f461bb3471c316fe3084d.pdf
    • https://static.usrfiles.com/ugd/f80014_813c9e8c14fe47539d38c56c43f2d0d1.pdf
    • https://static.usrfiles.com/ugd/47b1e8_3108ea32176d4f4a8d6add112e65aa3f.pdf
    • https://static.usrfiles.com/ugd/0aab01_653fe0010bf04c09b2d5a9d5712996d4.pdf
    • https://static.usrfiles.com/ugd/2274a7_086c6b972b784391b8204229f2a4309b.pdf
    • https://static.usrfiles.com/ugd/92ee2b_f97d1a9a62e44e7987a98dbe95f04747.pdf
    • https://static.usrfiles.com/ugd/0af078_52a7faaf6599400784e7010dfd5e9c71.pdf
    • https://static.usrfiles.com/ugd/5d2cf3_f5b926c472b541dcb2fa251e7ff6c5fa.pdf
    • https://static.usrfiles.com/ugd/ced2dc_63084ff8731b409f88e913f2866fd27a.pdf
    • https://static.usrfiles.com/ugd/173616_0aac2984d33844278286d4dc84dfd226.pdf
    • https://static.usrfiles.com/ugd/8e6e76_db4550bb65464fcd938483656c300d8f.pdf
    • https://static.usrfiles.com/ugd/dcbeda_f2f23ef02fbf48b1b6a7ecf211252c71.pdf
    • https://static.usrfiles.com/ugd/cafc24_6cce46f9058f466ab769db310135c16f.pdf
    • https://static.usrfiles.com/ugd/b8c837_b134deba61ea41e5b8d411481a5f561c.pdf
    • https://static.usrfiles.com/ugd/f64db8_4c1e5aaa286644d9bf725fad500b19e2.pdf
    • https://static.usrfiles.com/ugd/db80c5_e2393da3861a47f2a1b5f0fbc1ae82ee.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_off000050ea.bin
36067cae77feb240516c0cc9b3abf1b47b7fd1b91beb589fead3ae261433a1bd
pdf-font-stream PDF embedded font (sfnt) at offset 0x50EA 4728 bytes
font_01_sfnt_off000060cd.bin
387b7e3ff6380cd89f883b1ed89b7a6b6280c3918a40435cd475de67140ab134
pdf-font-stream PDF embedded font (sfnt) at offset 0x60CD 15340 bytes
font_02_sfnt_off0000911c.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x911C 4324 bytes