Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc1ba6989c3ebe48…

MALICIOUS

PDF

43.3 KB Created: 2020-08-05 05:54:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ff2a9a4daec1e4804c66984a6c12ea32 SHA-1: 1da13be37936e729604991e012a32c720593780b SHA-256: fc1ba6989c3ebe484db1d32224ec3ce0a0ba41e7a83b6743df1ddb1e9f125f18
120 Risk Score

Malware Insights

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

The PDF file exhibits malicious behavior through a critical heuristic firing indicating it links to known malicious redirector infrastructure. Additionally, it contains a large farm of external PDF links, a common tactic for SEO manipulation or distributing further malicious content. The primary malicious URL identified is https://ttraff.cc/pify?keyword=behavioral+game+theory+camerer+pdf, which likely serves as a redirector to a malicious payload.

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.cc/pify?keyword=behavioral+game+theory+camerer+pdf
    • http://files.kmoranart.com/uploads/1/3/2/6/132681296/xumedolamopujer_vogurosupubopez_vosafur.pdf
    • http://files.samuelpriven.com/uploads/1/3/1/4/131437676/7214059.pdf
    • http://files.discoverdp.info/uploads/1/3/2/6/132682124/lesalu.pdf
    • http://files.wilmcommunityadvisorycouncil.org/uploads/1/3/1/3/131398093/592972.pdf
    • http://files.steve-keating.com/uploads/1/3/0/7/130775053/jeluvesesa-tidiwuno.pdf
    • https://cdn.shopify.com/s/files/1/0433/9033/7182/files/1341554399.pdf
    • https://cdn.shopify.com/s/files/1/0432/7692/7141/files/lipakus.pdf
    • https://cdn.shopify.com/s/files/1/0432/1155/4980/files/botunosolenesoguma.pdf
    • https://cdn.shopify.com/s/files/1/0438/9512/8216/files/6121558857.pdf
    • https://cdn.shopify.com/s/files/1/0430/3152/7575/files/ultimate_skyrim_special_edition.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pufabupenidobuxix.pdf
    • https://cdn.shopify.com/s/files/1/0438/3863/6192/files/bioshock_rapture_espaol.pdf
    • https://cdn.shopify.com/s/files/1/0429/7503/5541/files/4726947975.pdf
    • https://cdn.shopify.com/s/files/1/0433/0392/7973/files/27395802019.pdf
    • https://cdn.shopify.com/s/files/1/0427/8052/4710/files/92107667347.pdf
    • https://cdn.shopify.com/s/files/1/0431/0165/1105/files/adobe_early_termination_fee.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_off000068fe.bin
0af505ebb81aac6f7412feedaa0d425b6461850c9f315c4652559917e5ac6894		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68FE 5604 bytes
font_01_sfnt_off00007bfa.bin
2fef5d241f6340a29bf68dc1bb95e470f2ec484d500f64ddc9e3fa4be1a1db17		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BFA 10656 bytes

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