Malicious PDF — malware analysis report

Static analysis result for SHA-256 54aa10e0920f7df5…

MALICIOUS

PDF

111.8 KB Created: 2020-09-06 03:28:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 03b44d9df08da46de92139a0df414305 SHA-1: e665237452f8cb9e4f4aa71abe51f0ed21f8e0db SHA-256: 54aa10e0920f7df5a9b225cf8bb49721238578857c1c0691626edf319968d720
128 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.club, which is likely intended to deliver malware. The document body, though heavily obfuscated, contains the same URL and keywords suggesting a lure for free software or games. The presence of a 'download button' heuristic 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.club/wix?keyword=boogeyman+free++pc+game
    • https://cdn.shopify.com/s/files/1/0430/6790/0061/files/auria_pro_ipad.pdf
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/come_together_beatles_chords.pdf
    • https://cdn.shopify.com/s/files/1/0429/9702/2879/files/xoxato.pdf
    • https://cdn.shopify.com/s/files/1/0438/0108/4064/files/neuroblastoma_infantil.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84312174386.pdf
    • https://cdn.shopify.com/s/files/1/0434/7274/8709/files/waxozififawosifug.pdf
    • https://cdn.shopify.com/s/files/1/0431/4556/0225/files/41698959007.pdf
    • https://cdn.shopify.com/s/files/1/0461/5156/5475/files/kinimedekukepowisuv.pdf
    • https://cdn.shopify.com/s/files/1/0433/1805/0984/files/astro_go_apk_for_tv_box.pdf
    • https://cdn.shopify.com/s/files/1/0440/6594/7798/files/fbr_amnesty_scheme_2020.pdf
    • https://cdn.shopify.com/s/files/1/0439/6482/5758/files/76249442593.pdf
    • https://cdn.shopify.com/s/files/1/0432/3622/9277/files/lotonepuzorisekoku.pdf
    • https://static.usrfiles.com/ugd/db93e9_31a0c86a597247b785c681383b766b8c.pdf
    • https://static.usrfiles.com/ugd/b8c837_cdb8c915d5d04509a775216ffb8b7c2c.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_off00017a97.bin
e1afe23249c6d8feda90d0d0cade3b71b6ff8a0d00f8002d27c53429d2e9f77e
pdf-font-stream PDF embedded font (sfnt) at offset 0x17A97 5276 bytes
font_01_sfnt_off00018c88.bin
4bae19d37efe1bfcbaeedfde8f027b472e3c90f4a2cf90e3ffa4954b67e4d25e
pdf-font-stream PDF embedded font (sfnt) at offset 0x18C88 10920 bytes