Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fe3f4ade2303046…

MALICIOUS

PDF

40.2 KB Created: 2020-08-29 17:29:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 856f85790a8e7bdcec357fe62060a54c SHA-1: a0ee854e1dbbc1c3ec835012b3edf971a8176768 SHA-256: 9fe3f4ade2303046c95cf9a0934f57c7ae3d9f5dba381dcfc0238571621f9f3c
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF document contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector link to 'ttraff.com'. This suggests the document is designed to lure users to malicious sites, likely for further exploitation or phishing. The presence of a link farm heuristic further supports this, indicating a broad distribution strategy. 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.com/wix?keyword=the+little+book+of+skin+care+by+charlotte+cho
    • https://static.usrfiles.com/ugd/b13fd1_1d8169fb2e4c47e69484c6b3e7aacd29.pdf
    • https://static.usrfiles.com/ugd/b8c837_8802e6d6dfc24d6abd5ed5a757618d64.pdf
    • https://static.usrfiles.com/ugd/b8c837_bb76e93294e649dda410835ba43541f8.pdf
    • https://static.usrfiles.com/ugd/b98abb_ba40f19eea41448791072d37dbe082ec.pdf
    • https://static.usrfiles.com/ugd/b8c837_22386157cfce47e1881207f7dcf2be60.pdf
    • https://static.usrfiles.com/ugd/b8c837_fc8c2cb50eb44ad7bc8a04a14cb559bd.pdf
    • https://static.usrfiles.com/ugd/b6bf5b_b4e3f0ea4c0841d8b873bcaee589b6ac.pdf
    • https://cdn.shopify.com/s/files/1/0427/9900/5863/files/xukomapoferedolil.pdf
    • https://cdn.shopify.com/s/files/1/0436/3298/4222/files/doduxolutatavosiwupekim.pdf
    • https://cdn.shopify.com/s/files/1/0430/0665/6666/files/88274046085.pdf
    • https://cdn.shopify.com/s/files/1/0429/0392/8991/files/genetics_essentials_2nd_edition.pdf
    • https://cdn.shopify.com/s/files/1/0428/4012/9692/files/kuguxebidupuzosalozuni.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000600a.bin
a21811ae72f2d21b0ec0c0eb51ab482e899f4e47047f9fe141ddc2e44b78cdcf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x600A 5224 bytes
font_01_sfnt_off000071c8.bin
2522ad8b9b9f738e876b31255cbc9935021efa84e743fe242e4dd705be60411c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71C8 10056 bytes

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