Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e4a1bd2fded420f…

MALICIOUS

PDF

77.3 KB Created: 2020-08-19 12:33:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 26766b057254a00da38db3c73414edaa SHA-1: b8c3859739b6f38c539aa7fd913e6f4dce6917ee SHA-256: 1e4a1bd2fded420f0065056db83e36cfe7f80c5a6627c20010ce0fa920c687ec
182 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a heuristic indicating it requests sensitive recovery information, acting as a lure. It also features a mass external PDF link farm, with a critical redirector link to 'ttraff.com'. This suggests a phishing or scam attempt designed to harvest credentials or lead users to malicious content.

Heuristics 4

  • 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.
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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=platform+tools+android+sdk
    • http://files.studiojigi.com/uploads/1/3/2/6/132681992/kerorekazogoni-buxepapopot-nonetoripu-tevarujinos.pdf
    • http://files.aflunky.com/uploads/1/3/0/7/130739971/kudorafijakonisure.pdf
    • https://cdn.shopify.com/s/files/1/0433/6268/0984/files/lumolugol.pdf
    • https://cdn.shopify.com/s/files/1/0429/8348/9687/files/entrepreneurship_hisrich.pdf
    • https://cdn.shopify.com/s/files/1/0430/8343/2096/files/37994529480.pdf
    • https://cdn.shopify.com/s/files/1/0437/3577/7445/files/email_verifier_pro.pdf
    • https://cdn.shopify.com/s/files/1/0430/2379/4337/files/88040671468.pdf
    • https://cdn.shopify.com/s/files/1/0428/7217/6799/files/68470283301.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/23582012054.pdf
    • https://cdn.shopify.com/s/files/1/0437/3171/4202/files/carpal_tunnel_syndrome_diagnosis.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_off0000f3cf.bin
352bfb2e8f726657f95dd32e2861c56a0e1e5c0e6fdac6f55a36ac2b6bf6d3c6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF3CF 5120 bytes
font_01_sfnt_off0001051a.bin
2af51e1fc5b31e7c67026bed29561e5f03054f437cb2eea464c7a8785e7b6a4b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1051A 10376 bytes

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