Malicious PDF — malware analysis report

Static analysis result for SHA-256 90b2d184ba208d4b…

MALICIOUS

PDF

129.6 KB Created: 2020-09-23 00:30:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fe5acfda49d76b72a0818dfc9e2f2786 SHA-1: ef9f43b4d68fb0b9d496452f1078da79d3101801 SHA-256: 90b2d184ba208d4bc077e3c809dee7891c26cc0fbfa9a7430826744762b3a6a0
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.club/wix?keyword=p3p+ghost+story+answers'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many pointing to Shopify domains. The document body, though heavily obfuscated, contains the same redirector URL, suggesting a lure to a malicious site disguised as a ghost story answer key.

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=p3p+ghost+story+answers
    • http://files.aglfletcher.com/uploads/1/3/1/8/131858791/ee630.pdf
    • http://files.alpinevizslas.com/uploads/1/3/0/7/130775866/827c9623.pdf
    • https://cdn.shopify.com/s/files/1/0432/2630/0575/files/24677409480.pdf
    • https://cdn.shopify.com/s/files/1/0428/4982/9023/files/ziloduxedoxuguripus.pdf
    • https://cdn.shopify.com/s/files/1/0427/7207/0556/files/45731110051.pdf
    • https://cdn.shopify.com/s/files/1/0428/3593/5388/files/physics_for_scientists_and_engineers_knight.pdf
    • https://cdn.shopify.com/s/files/1/0432/0716/4064/files/31960983060.pdf
    • https://cdn.shopify.com/s/files/1/0458/0373/3158/files/98620152913.pdf
    • https://c23f02e0-b8b9-4936-89b7-13740660a2fe.filesusr.com/ugd/2072cd_eaabb2753338421bac3122fbecbdbaf9.pdf?index=true
    • https://242078b6-bbea-488f-977b-c284be00b7b3.filesusr.com/ugd/cf79db_10a3451cca65472ba82872279152264e.pdf?index=true
    • https://407e37b0-c704-4c21-8282-8e83a6898711.filesusr.com/ugd/f9fac6_7adf77cf7fb442d89572425d5b2f3c71.pdf?index=true
    • https://03254f28-5fcb-4222-857f-b454ca5729b3.filesusr.com/ugd/bc79a4_7aec5a1cd3464620beb02308e770b19c.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00015f05.bin
daa0e377875638bed3d7e537acbe6be03bc6c14cea7cc6d704eaf2d7c0c48f3a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15F05 31952 bytes
font_01_sfnt_off0001c1e9.bin
4e0a38d4898d343822abfd15351430bbc08bc69bc44946ed3859895564d6f842		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1C1E9 5408 bytes
font_02_sfnt_off0001d461.bin
93cef0a441b81f29baa242aaf2ae4f5e0314e84e172ad7e12845980600d8e2b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1D461 10796 bytes

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