Malicious PDF — malware analysis report

Static analysis result for SHA-256 f370bcb5362ae4b5…

MALICIOUS

PDF

45.9 KB Created: 2020-08-15 05:24:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 45b6397489f66a0c994d38297331b58e SHA-1: 7dd0b60ea9f2e33cd5945ef41ba37444845b2628 SHA-256: f370bcb5362ae4b5d75991caabf72f52c6722f1a0a282f1f9a00f94e5d116d83
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=gfffx+fund+fact+sheet'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many of which point to Shopify domains. The document body, though partially corrupted, contains the same redirector URL and references to a 'fund fact sheet', suggesting a social engineering lure to drive traffic to malicious infrastructure.

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/pify?keyword=gfffx+fund+fact+sheet
    • http://files.southwoden.com/uploads/1/3/0/9/130969562/386824.pdf
    • http://files.aroundaboutfaceandbody.com/uploads/1/3/0/8/130814001/a087037.pdf
    • http://files.miyps.com/uploads/1/3/0/7/130775949/tenotevute_kakorekolofedo.pdf
    • http://files.eye-of-iris.com/uploads/1/3/1/3/131384300/d8410ca9487.pdf
    • http://tumaker.directedapparel.com/uploads/1/3/1/6/131607600/fazasuko.pdf
    • https://cdn.shopify.com/s/files/1/0438/0377/1041/files/puxafisumazut.pdf
    • https://cdn.shopify.com/s/files/1/0433/1631/4277/files/35602225224.pdf
    • https://cdn.shopify.com/s/files/1/0434/7074/9856/files/vavixomategab.pdf
    • https://cdn.shopify.com/s/files/1/0432/6470/4662/files/13102752033.pdf
    • https://cdn.shopify.com/s/files/1/0448/4576/0669/files/liwagira.pdf
    • https://cdn.shopify.com/s/files/1/0429/8863/4263/files/zafawulukivekuzesidas.pdf
    • https://cdn.shopify.com/s/files/1/0431/6263/2360/files/75097623107.pdf
    • https://cdn.shopify.com/s/files/1/0427/6797/4556/files/characteristics_of_acephalous_society.pdf
    • https://cdn.shopify.com/s/files/1/0439/8628/8798/files/czech_casting_andrea.pdf
    • https://cdn.shopify.com/s/files/1/0432/4114/4483/files/dajuz.pdf
    • https://cdn.shopify.com/s/files/1/0432/2469/4942/files/mathematics_for_engineers_a_modern_interactive_approach.pdf
    • https://cdn.shopify.com/s/files/1/0437/7929/3338/files/weleru.pdf
    • https://cdn.shopify.com/s/files/1/0437/3987/3429/files/padi_adventures_in_diving_manual.pdf
    • https://cdn.shopify.com/s/files/1/0438/0000/2717/files/20263533820.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_off00006e09.bin
1e92e25d87da9aa6b26133884dcb0176761f179351eeed8fc9cbbbc2a2fd88af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E09 5080 bytes
font_01_sfnt_off00007f52.bin
ece30b075343ae4ff5bf17fb873d6d56b77d813487c6d2b08bd08b31f069e08c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F52 13672 bytes

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