Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c374d520c9c671a…

MALICIOUS

PDF

39.2 KB Created: 2020-08-24 03:11:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 53e9cccbd12bb7acc1858e1040d1c562 SHA-1: cece252defa180c4e21453336751eceb251a4185 SHA-256: 8c374d520c9c671a5544aff6bcee88b074b56e63442552276b9362d728424389
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=bad+boy+lyrics+saaho++mr+jatt'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, including one to 'https://cdn.shopify.com/s/files/1/0438/6252/4069/files/dafowoxorewagugifadum.pdf'. The document body contains garbled text but includes the malicious URL, suggesting an attempt to lure users to malicious infrastructure.

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=bad+boy+lyrics+saaho++mr+jatt
    • http://files.huronvalleybaptistdistrictassociation.org/uploads/1/3/1/3/131384300/d0b075bf14e.pdf
    • https://cdn.shopify.com/s/files/1/0438/6252/4069/files/dafowoxorewagugifadum.pdf
    • https://cdn.shopify.com/s/files/1/0429/8145/8069/files/xonoxolilesowalelanoxut.pdf
    • https://cdn.shopify.com/s/files/1/0434/5298/9605/files/trading_and_technical_analysis_course.pdf
    • https://cdn.shopify.com/s/files/1/0428/3655/7987/files/jsp_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0427/6856/4380/files/worolakudapaxuza.pdf
    • https://cdn.shopify.com/s/files/1/0440/7086/2998/files/adobe_reader_2019.pdf
    • https://cdn.shopify.com/s/files/1/0431/0158/5570/files/61277929169.pdf
    • https://cdn.shopify.com/s/files/1/0431/1636/3927/files/juvuponok.pdf
    • https://cdn.shopify.com/s/files/1/0438/4381/3538/files/72043971966.pdf
    • https://cdn.shopify.com/s/files/1/0431/5434/2044/files/49945635880.pdf
    • https://cdn.shopify.com/s/files/1/0430/0436/2906/files/jekibexolusi.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_off00004b38.bin
04705cc67d870d178a9125d8230bcf676e3426d786fd0807b0939bd98cfe76c2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4B38 5544 bytes
font_01_sfnt_off00005dec.bin
9a232ac1fb29b270ef1014e8ca8a621aaa319375ece64a1bc54f7b6f457ddbdd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DEC 9832 bytes
font_02_sfnt_off00007fe0.bin
1c8ae5bdab0e3b8ef4120a01409e7be8ca9275dc28c8029b84063002b0e1d644		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FE0 4292 bytes

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