Malicious PDF — malware analysis report

Static analysis result for SHA-256 57a820b501ddb6b4…

MALICIOUS

PDF

51.7 KB Created: 2020-08-24 03:55:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6b812bfb8fa2025fa0ffb7fe3a64abd6 SHA-1: d9100754ec25cb07b5e9178d6013e084078af52d SHA-256: 57a820b501ddb6b499260e19a0b27dd40909491d231b8de3711bbe89831c219b
208 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains a lure to install a browser extension or update, instructing the user to disable security software. It also includes a mass external PDF link farm and a link to a known malicious redirector. The primary malicious URL is https://ttraff.cc/pify?keyword=setup+miracle+thunder+edition+2.+98, which likely serves as a downloader or redirects to further malicious content.

Heuristics 6

  • 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.
  • Security software disable instruction high SE_SECURITY_BYPASS
    Document instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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/pify?keyword=setup+miracle+thunder+edition+2.+98
    • http://ribokogi.foresitemapping.com/uploads/1/3/2/6/132681670/ed7140.pdf
    • https://cdn.shopify.com/s/files/1/0428/5261/4311/files/62867392921.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23929268289.pdf
    • https://cdn.shopify.com/s/files/1/0434/0531/2156/files/fitigexuxabosipufetinod.pdf
    • https://cdn.shopify.com/s/files/1/0437/9885/5837/files/damumiropexotakizese.pdf
    • https://cdn.shopify.com/s/files/1/0437/8473/2829/files/kanipofekipavelotexub.pdf
    • https://cdn.shopify.com/s/files/1/0428/2764/5095/files/gukoninu.pdf
    • https://cdn.shopify.com/s/files/1/0429/7631/3503/files/mozomexadapatoxisidoporu.pdf
    • https://cdn.shopify.com/s/files/1/0429/2732/5343/files/24068971869.pdf
    • https://cdn.shopify.com/s/files/1/0429/1241/5897/files/78554983337.pdf
    • https://cdn.shopify.com/s/files/1/0463/6255/8619/files/best_spreadsheet_app_for_iphone_free.pdf
    • https://cdn.shopify.com/s/files/1/0439/1341/2760/files/tatalaksana_bronkitis_pada_anak.pdf
    • https://cdn.shopify.com/s/files/1/0429/6087/9772/files/libro_poemas_de_otros_mario_benedetti.pdf
    • https://cdn.shopify.com/s/files/1/0440/2891/9973/files/bpel_tutorial_for_beginners.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067de.bin
a3041e52bdbdd64ee8d0bcfb19af2770dcdf2bb5958c6f0263e4ec614ea8f89a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67DE 5632 bytes
font_01_sfnt_off00007ad0.bin
81344b671e8da31b4abbb3b293a2034d67cea6ed6dba491550ede4d78a2b2e22		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AD0 10416 bytes
font_02_sfnt_off00009e85.bin
333c6b7950143ef5b768b9d621755905cb9f9f437be433e332b6baa8edb2b5fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9E85 16148 bytes
font_03_sfnt_off0000b395.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB395 4324 bytes

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