Malicious PDF — malware analysis report

Static analysis result for SHA-256 a31d631f2b2dc597…

MALICIOUS

PDF

150.4 KB Created: 2020-08-31 12:59:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 88bee12016f3ad162b663f21eb89cc30 SHA-1: c3e23c867633f56c94a5c94fe05c5632b2146999 SHA-256: a31d631f2b2dc597f47afd327c221863177ac40f1a2f0c06e126e63f6650de04
68 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.club/wix?keyword=garmin+connect+windows+7'. This URL is presented within the document body, alongside a visual cue suggesting a download button. The combination of these elements strongly indicates a phishing or social engineering attempt to redirect the user to a malicious site.

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.
  • 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=garmin+connect+windows+7
    • https://cdn.shopify.com/s/files/1/0431/5634/0890/files/annexure_b_in_word_format.pdf
    • https://cdn.shopify.com/s/files/1/0428/9485/2252/files/vumojesolajapejajedenar.pdf
    • https://cdn.shopify.com/s/files/1/0434/9899/5864/files/computer_science_cheat_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0431/4939/4080/files/55337983621.pdf
    • https://static.usrfiles.com/ugd/b8c837_3430b57eb72440158e15e13c15b71568.pdf
    • https://static.usrfiles.com/ugd/38bf1f_0d45ce8c45c940fe9e4c389c5752ff91.pdf
    • https://static.usrfiles.com/ugd/7ea8bb_8e1c526ad7654c16b2d80eb7fec2f148.pdf
    • https://static.usrfiles.com/ugd/b8c837_33831c1fddeb48aea40e27317376388d.pdf
    • https://static.usrfiles.com/ugd/2f7815_7e364d9ccafa481f8d73c77073f6084f.pdf
    • https://static.usrfiles.com/ugd/32777b_0b9c7e2856b5406ca3d7cb607ff22658.pdf
    • https://static.usrfiles.com/ugd/cbdbb6_a3361745c76c449d87193c2de8b6d59d.pdf
    • https://static.usrfiles.com/ugd/9219f8_da719db8a51742fc836662105b6b6507.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_off00020751.bin
2d0de619652fd814838c0c20e3afd782226c9d36b67c5bfded2c558d5730c8f8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x20751 5044 bytes
font_01_sfnt_off00021875.bin
ca73690e2f7ac2495d3ecd390197fa793a87e9311cbce1f616814922814a9401		 pdf-font-stream PDF embedded font (sfnt) at offset 0x21875 11100 bytes
font_02_sfnt_off00023deb.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23DEB 4324 bytes

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