Malicious PDF — malware analysis report

Static analysis result for SHA-256 aada103ce58366e5…

MALICIOUS

PDF

42.1 KB Created: 2020-09-02 12:38:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 54188d42f4eeecf5ec3763a7e874e9c4 SHA-1: 75dff9b905687ad3f17678daf964e92d19fc2c5e SHA-256: aada103ce58366e5ec3498cb6b00af88259f02127d382e4d785fcf9fa5494713
128 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link, https://ttraff.cc/wix?keyword=filmywap+aarakshan+movie, which is designed to lure users into clicking it. The document also features a mass external PDF link farm, with many links pointing to static.usrfiles.com, suggesting an attempt to manipulate search engine results or distribute further malicious content. The presence of a visual download button further supports the social engineering aspect of this attack.

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.cc/wix?keyword=filmywap+aarakshan+movie
    • https://static.usrfiles.com/ugd/510a18_4493b4b6f49842a8b957e88cfb86920a.pdf
    • https://static.usrfiles.com/ugd/b8c837_cf663ef75b884e2ba445f1a2d681b5c6.pdf
    • https://static.usrfiles.com/ugd/4ae4db_28820fad6a844e83887f5e8243fb4130.pdf
    • https://static.usrfiles.com/ugd/39d081_1b61aa60d6cd4209b8d17ce2782fd4e6.pdf
    • https://cdn.shopify.com/s/files/1/0430/0872/1045/files/kupixora.pdf
    • https://cdn.shopify.com/s/files/1/0437/2614/3639/files/caballo_de_troya_11_descarga_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0435/1442/9608/files/social_psychology_myers_12th_edition_free.pdf
    • https://cdn.shopify.com/s/files/1/0432/5713/5257/files/nutenixumexukuwuvamekone.pdf
    • https://cdn.shopify.com/s/files/1/0439/3671/0824/files/ielts_reading_answer_collecting_ant_specimens.pdf
    • https://cdn.shopify.com/s/files/1/0438/2582/3904/files/cost_accountant_interview_questions_and_answers.pdf
    • https://static.usrfiles.com/ugd/837d34_21d29280d2274c06ab660a07bf7552c5.pdf
    • https://static.usrfiles.com/ugd/b8c837_80b834759d2c4e9b943af6c63b8f4b64.pdf
    • https://static.usrfiles.com/ugd/f459ea_ded59d76137f46098bcf75176407f825.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_off0000640a.bin
24283e5f4ea1ebf00f5ac0b2ad60a2997849e670a92d5ce400e1260471e4adfa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x640A 5332 bytes
font_01_sfnt_off0000761d.bin
57a15305ce47b922f98b35476f347e105fe3164c83eecc317e3910db95fd6e60		 pdf-font-stream PDF embedded font (sfnt) at offset 0x761D 11104 bytes

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