Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bdd4a0a3d868a8c…

MALICIOUS

PDF

57.8 KB Created: 2020-08-17 04:42:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ad32662056aa5dfd4aa12e3328e2dfd SHA-1: 4f2208e2860324227c2cc12e265aa4f18a531532 SHA-256: 2bdd4a0a3d868a8c43f5f06c1ee343649745873f1a0715b9df103977bb548eda
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains references to the malicious URL and other PDF files hosted on Shopify. This suggests a lure to trick users into clicking malicious links, likely leading to further compromise.

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=the+best+answers+tradu%25C3%25A7%25C3%25A3o
    • http://files.bespoke-papers.com/uploads/1/3/1/4/131453805/porigede_purivijaf_jotafulib_kuviwepisexu.pdf
    • http://larufe.svaptsa.org/uploads/1/3/0/7/130775923/pagur.pdf
    • http://files.abigailgallagherportfolio.org/uploads/1/3/1/4/131406714/dokukosu_zitanitigo_tepenugosize_najomofilalanim.pdf
    • http://files.thelrcollaborative.com/uploads/1/3/0/8/130874066/4e055b1.pdf
    • https://cdn.shopify.com/s/files/1/0447/3955/9573/files/main_apartheid_laws.pdf
    • https://cdn.shopify.com/s/files/1/0430/6105/1546/files/world_map_black_and_white.pdf
    • https://cdn.shopify.com/s/files/1/0431/7328/1948/files/63930065653.pdf
    • https://cdn.shopify.com/s/files/1/0440/0336/0926/files/kedijutuliniwapigugof.pdf
    • https://cdn.shopify.com/s/files/1/0434/7261/7637/files/xaxusowafivisoku.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/68905528383.pdf
    • https://cdn.shopify.com/s/files/1/0433/9639/9269/files/bar_psi_kpa_conversion_chart.pdf
    • https://cdn.shopify.com/s/files/1/0439/8071/8238/files/proyecto_de_investigacion.pdf
    • https://cdn.shopify.com/s/files/1/0430/6393/5129/files/punij.pdf
    • https://cdn.shopify.com/s/files/1/0441/4255/9384/files/tired_anime_boy.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067e2.bin
fb4cf69583460ef83363dad65b843cf6c3cbab18a82a06fb0d09e8119e585b90		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67E2 4936 bytes
font_01_sfnt_off00007942.bin
2b314ebec104408cbf12f5877fad8e3ce6236a7c13a956aceba10506315fd819		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7942 5560 bytes
font_02_sfnt_off00008b83.bin
0bd1490fcd67e9458542ae706049e3a5e07b4a9b11f68106779437be1301ec9c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B83 6368 bytes
font_03_sfnt_off00009c34.bin
20a03f69d3dac6b5e3d01b4eff011635f1314b6d325481c8604e46df74299e68		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9C34 10488 bytes
font_04_sfnt_off0000bfea.bin
6ed5a2d706b6b6ea64350c61bc0b7759de19fe4d5fc3fbc4d8178b7bf9f6b191		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBFEA 16876 bytes

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