Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ba953d0a3085def…

MALICIOUS

PDF

60.2 KB Created: 2020-08-23 18:14:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 435644f9caaa12101dbc0be670510661 SHA-1: 792f9c56c7b8fc53a08806b4bcde7fe201636a9d SHA-256: 2ba953d0a3085defbef6dc9eabd28e4b2486c9d524be5b37eadac56422ef12bf
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=athens+greece+bus+map+pdf'. This indicates the document's primary purpose is to redirect users to potentially harmful content. Additionally, a large number of external PDF links were found, suggesting a link farm or SEO poisoning attempt. The document body, though heavily corrupted, contains fragments of the lure text and the malicious URL.

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=athens+greece+bus+map+pdf
    • http://jemupole.thepamperedhen.com/uploads/1/3/1/8/131871479/tibuxororobigetesu.pdf
    • https://cdn.shopify
    • https://cdn.shopify.com/s/files/1/0432/1699/4466/files/38550658536.pdf
    • https://cdn.shopify.com/s/files/1/0434/7494/4153/files/android_sqlite_foreign_key_not_working.pdf
    • https://cdn.shopify.com/s/files/1/0449/7873/3224/files/awg_to_mm_conversion.pdf
    • https://cdn.shopify.com/s/files/1/0429/8991/2218/files/niligowijejolivomuwaluzid.pdf
    • https://cdn.shopify.com/s/files/1/0436/9616/0921/files/post_traumatic_stress_disorder_journal_articles.pdf
    • https://cdn.shopify.com/s/files/1/0431/8153/9483/files/62876574399.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57727452667.pdf
    • https://cdn.shopify.com/s/files/1/0447/9811/6006/files/resonance_circuit_lab_report.pdf
    • https://cdn.shopify.com/s/files/1/0431/8904/3358/files/4062378680.pdf
    • https://cdn.shopify.com/s/files/1/0431/7272/4900/files/swap_magic_3._8_iso.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008a05.bin
762da6abc1a69e41ae9125c69781d1ddbb6a8654be8ee31ab85c9e2df908b5dc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A05 5664 bytes
font_01_sfnt_off00009d10.bin
02bbceced3aee91f0905f313ec8aa9022b4482630e5de91a4a7dfd7d4c84e2e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9D10 16136 bytes
font_02_sfnt_off0000ce45.bin
aca9d55988c6676475e3b08f81553e0332b16fe059812fe008bdba06dc22cfc1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCE45 16316 bytes

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