Malicious PDF — malware analysis report

Static analysis result for SHA-256 273403e1fe50ae41…

MALICIOUS

PDF

33.1 KB Created: 2020-08-21 18:50:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 75b1723768ed901bfd2d6d6e0c029d18 SHA-1: 8225508813e9f52615a409f15ed263fc363af164 SHA-256: 273403e1fe50ae4181edf11fe56a346fa453a106272825fc300e306ae1762d53
60 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing indicating a malicious redirector link. The embedded URL 'https://ttraff.cc/pify?keyword=belajar+aksara+sunda+pdf' is the primary indicator of malicious intent. The document body, though heavily obfuscated, also contains this URL, suggesting it's the intended lure. The file is likely a lure to a phishing or malware distribution site.

Heuristics 2

  • 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.
  • 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=belajar+aksara+sunda+pdf
    • http://gefesu.kakaakobrewingco.com/uploads/1/3/1/4/131437462/revumu-sutubimemunok.pdf
    • https://cdn.shopify.com/s/files/1/0461/6250/9987/files/vpn_master_windows_free.pdf
    • https://cdn.shopify.com/s/files/1/0434/7694/3000/files/writing_assessment_rubric.pdf
    • https://cdn.shopify.com/s/files/1/0430/2451/5229/files/tutiro.pdf
    • https://cdn.shopify.com/s/files/1/0428/2423/7212/files/base_de_datos_relacional.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65028435792.pdf
    • https://cdn.shopify.com/s/files/1/0439/1924/5467/files/83758546842.pdf
    • https://cdn.shopify.com/s/files/1/0435/1574/0314/files/javascript_snake_code.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_off0000455e.bin
acc2b7ae9858485098ab8dd2c41e84a81809091c5a22562bb148e4f1c6d791cc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x455E 5224 bytes
font_01_sfnt_off00005735.bin
725856e7ad852e22a204de99fc37b4c110ebaee059be05d03bcab2743f98a67b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5735 9676 bytes

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