Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ae2565283ca755c…

MALICIOUS

PDF

38.0 KB Created: 2020-08-28 17:54:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5333f25bfc3f76b2d89ecc81990db6e4 SHA-1: 00645f32ccea201502b7d34ffe854e75216aed0b SHA-256: 1ae2565283ca755c2cc07cc3478857191289eb25bc1be8b78eb3fc87e26fd692
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to ttraff.com. Additionally, it exhibits characteristics of a PDF link farm, with numerous links to external PDFs, many hosted on Shopify. The document body, though heavily obfuscated, contains the same URL and keywords related to a study guide, suggesting a lure for phishing or malware distribution. No scripts were extracted, but the presence of malicious links is sufficient evidence of malicious intent.

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=aday+%25C3%25B6%25C4%259Fretmen+s%25C4%25B1nav%25C4%25B1+haz%25C4%25B1rl%25C4%25B1k+kitab%25C4%25B1
    • http://files.onethreeproductions.com/uploads/1/3/1/3/131380480/2c586c7.pdf
    • https://cdn.shopify.com/s/files/1/0437/3266/4481/files/xixapomuvogugeta.pdf
    • https://cdn.shopify.com/s/files/1/0451/4365/4565/files/stay_hungry_stay_foolish_steve_jobs_speech.pdf
    • https://cdn.shopify.com/s/files/1/0435/0859/6900/files/rowezagotagajudafatodo.pdf
    • https://cdn.shopify.com/s/files/1/0433/9616/9886/files/veruwuramuzapiwega.pdf
    • https://cdn.shopify.com/s/files/1/0433/7028/3173/files/11785701154.pdf
    • https://cdn.shopify.com/s/files/1/0432/0378/8960/files/73470688216.pdf
    • https://cdn.shopify.com/s/files/1/0429/8034/3967/files/minority_report_plot_summary_spoiler.pdf
    • https://cdn.shopify.com/s/files/1/0428/3957/2643/files/54585181747.pdf
    • https://cdn.shopify.com/s/files/1/0429/2214/8003/files/iit_jee_chemistry_notes_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/8184/9245/files/55572250011.pdf
    • https://cdn.shopify.com/s/files/1/0431/8904/3362/files/fedez.pdf
    • https://cdn.shopify.com/s/files/1/0434/6881/6544/files/gabanadigesijisamopiji.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_off0000468b.bin
d36a99ccb25eff7c78b0295ec90cb5052c82a2aac79c2470ef26accc7756769d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x468B 5548 bytes
font_01_sfnt_off0000594e.bin
cbba29cb145d3a561bd65391dd540579ffc8b8686d3b1c7d7b839a769d56c94f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x594E 10544 bytes
font_02_sfnt_off00007b20.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B20 4324 bytes

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