Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ad05801301436ad…

MALICIOUS

PDF

84.3 KB Created: 2020-08-23 22:55:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 510857a57badb539b778c67c3fc2e668 SHA-1: 233ff4ca08eb8831a500b97d3529ca1bacce5809 SHA-256: 3ad05801301436ad976f2ffdde6dfa5bd621e140928c5c56ac8376a3d3d033fc
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=leatherback+sea+turtle+fact+sheet'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains the same malicious URL. This suggests the primary intent is to lure the user to a malicious site via a deceptive link.

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=leatherback+sea+turtle+fact+sheet
    • http://files.alpineanimalhospital.us/uploads/1/3/1/3/131384113/wurojuzoguzonazafa.pdf
    • https://cdn.shopify.com/s/files/1/0430/6403/3429/files/riven_walkthrough.pdf
    • https://cdn.shopify.com/s/files/1/0428/6955/5356/files/8049436562.pdf
    • https://cdn.shopify.com/s/files/1/0432/1987/8048/files/84160235066.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/64630415929.pdf
    • https://cdn.shopify.com/s/files/1/0427/7354/5116/files/72461951145.pdf
    • https://cdn.shopify.com/s/files/1/0452/7731/5233/files/76743262163.pdf
    • https://cdn.shopify.com/s/files/1/0435/9792/2461/files/nukiwivexifenun.pdf
    • https://cdn.shopify.com/s/files/1/0431/6836/6760/files/vowunixixajajikiti.pdf
    • https://cdn.shopify.com/s/files/1/0437/4685/3016/files/cuneiform_script_font_free.pdf
    • https://cdn.shopify.com/s/files/1/0438/6793/0789/files/cardiopatias_congenitas_acianogenas_y_acianogenas_en_pediatria.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f6e7.bin
9e33afa127ba5e94fedc11574249399f66ccba07db2b27f2deb4dbeb02843c2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF6E7 4732 bytes
font_01_sfnt_off00010710.bin
70b844f74996fcee5e1d27ce90af7085dab18ef8498285b96f5f41c426451930		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10710 1716 bytes
font_02_sfnt_off00010fb6.bin
84ca8bbe29901cd05afa07fb19fabfe5dadac6ac08648388ffc1cb98efef6fa0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10FB6 11312 bytes
font_03_sfnt_off000135a9.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x135A9 4324 bytes

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