Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0507e8be333e5ed…

MALICIOUS

PDF

38.7 KB Created: 2020-08-29 02:50:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6cc1796348d1bfe2a9d932102b8860d8 SHA-1: e03dbb1e48790be1e290f03fe1689984fd56946d SHA-256: f0507e8be333e5ed6dd42c5eb45be3741c4015dfb7bc9dbf0ea0dd3310aa633f
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector infrastructure at 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'Asus g01 kb driver' and the malicious URL, suggesting a lure for users seeking drivers. The presence of a link farm heuristic further indicates an attempt to distribute content or redirect users to malicious sites. The primary attack vector appears to be a phishing lure disguised as a driver download.

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=asus+g01+kb+driver
    • https://cdn.shopify.com/s/files/1/0435/8720/7327/files/despicable_me_480p_full_movie.pdf
    • https://cdn.shopify.com/s/files/1/0436/0349/3026/files/3995576540.pdf
    • https://cdn.shopify.com/s/files/1/0436/0041/2835/files/centrifugal_casting_seminar_report.pdf
    • https://static.usrfiles.com/ugd/b8c837_2892154f766246d3b66d0559a4267bc0.pdf
    • https://static.usrfiles.com/ugd/b8c837_3ef64ecb730745fa80d6796dcadb740c.pdf
    • https://static.usrfiles.com/ugd/b8c837_5f0e8922dfd942efa2013882555d4d27.pdf
    • https://static.usrfiles.com/ugd/b8c837_b4b2e687be3540d99d19a2a5fd6e3dc3.pdf
    • https://static.usrfiles.com/ugd/b8c837_0d31c83dd93d40718000d1c4f115d4f3.pdf
    • https://cdn.shopify.com/s/files/1/0435/3690/8439/files/bully_scholarship_edition_pc_free.pdf
    • https://cdn.shopify.com/s/files/1/0454/2929/3214/files/24011326736.pdf
    • https://cdn.shopify.com/s/files/1/0432/6604/8164/files/cisco_esa_advanced_configuration_guide.pdf
    • https://cdn.shopify.com/s/files/1/0461/8459/5610/files/litipu.pdf
    • https://cdn.shopify.com/s/files/1/0440/6499/7526/files/kinafokevupo.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_off000057a9.bin
5a215d28056f095f9fc48c612e15562ae459cd519f8c6264a1bfbc6e114e7961		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57A9 5196 bytes
font_01_sfnt_off00006974.bin
e7aee30d0a6fc8a76fd6ed2e994d984e5b2ac2b1dcbffebad41a108b4819512a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6974 10948 bytes

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