Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3a8311e871792e0…

MALICIOUS

PDF

32.6 KB Created: 2020-08-19 15:36:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3e442d14a04ac853955b44541de5f238 SHA-1: fde8e852e585da4cbb89626d47ea12d4e022f66f SHA-256: c3a8311e871792e02882c50793081e8a1745cea946e04e9318b32af1e1a04086
128 Risk Score

Malware Insights

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

The PDF file contains a link farm designed to mimic search results, specifically for "Shiva cartoon movie 3gp". The primary malicious link, https://ttraff.com/pify?keyword=shiva+cartoon+movie++3gp, is identified as a redirector to malicious infrastructure. The document body, though heavily obfuscated, contains this lure and references the malicious URL, indicating an attempt to drive traffic to potentially harmful 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=shiva+cartoon+movie++3gp
    • http://files.nickstvs.com/uploads/1/3/0/9/130969220/1658336.pdf
    • https://cdn.shopify.com/s/files/1/0436/8121/8710/files/60403649420.pdf
    • https://cdn.shopify.com/s/files/1/0436/8980/3941/files/naxalewaja.pdf
    • https://cdn.shopify.com/s/files/1/0429/6127/2995/files/chuyn_file_sang_file_nh_cht_lng_cao.pdf
    • https://cdn.shopify.com/s/files/1/0439/2042/5115/files/chevrolet_impala_2015_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/7777/1162/files/speed_control_methods_of_three_phase_induction_motor.pdf
    • https://cdn.shopify.com/s/files/1/0428/6559/0438/files/agenda_21_resumo.pdf
    • https://cdn.shopify.com/s/files/1/0433/6097/7048/files/zezunovabelixo.pdf
    • https://cdn.shopify.com/s/files/1/0429/6055/2085/files/biw_design_basics.pdf
    • https://cdn.shopify.com/s/files/1/0428/0185/6668/files/accounting_101_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/1510/9794/files/cech_3001a_jailbreak.pdf
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/14402565756.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_off00004096.bin
832d73c1a1a82839612b6e21a86b2ff4618157e4fd72f77363bb93d957e850af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4096 5464 bytes
font_01_sfnt_off00005303.bin
5e659db018112c279a67cf08652d11f4a0ddc4195d9225d5ec63b71d1b9ada94		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5303 10352 bytes

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