Malicious PDF — malware analysis report

Static analysis result for SHA-256 207524885bed8f41…

MALICIOUS

PDF

43.3 KB Created: 2020-08-19 21:46:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fcc392f3c443dd4bf573df46cc932e99 SHA-1: 292d9424338ee2be03a448c1544d569d7f5aba54 SHA-256: 207524885bed8f41b376e8535dc84f518e174f25973af187989673424ee59197
128 Risk Score

Malware Insights

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

The PDF file contains a malicious redirector link pointing to 'ttraff.com', which is designed to lure users into downloading further content. It also exhibits characteristics of a link farm, with numerous links to external PDFs, many hosted on Shopify. The presence of a visual download button and the embedded URL in the document body suggest a social engineering attempt to trick the user into clicking the malicious link.

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.com/pify?keyword=macos+catalina+final+dmg
    • http://files.oakcreekfootball.com/uploads/1/3/1/3/131379828/f9a46bda83.pdf
    • https://cdn.shopify.com/s/files/1/0432/3124/8542/files/besopube.pdf
    • https://cdn.shopify.com/s/files/1/0437/2656/9633/files/51725840379.pdf
    • https://cdn.shopify.com/s/files/1/0431/4107/1016/files/86688048826.pdf
    • https://cdn.shopify.com/s/files/1/0434/4456/8216/files/juxonibokovosibe.pdf
    • https://cdn.shopify.com/s/files/1/0431/2550/6208/files/du_ba_sociology_syllabus.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vunazazaxukatokezidabu.pdf
    • https://cdn.shopify.com/s/files/1/0429/0949/9558/files/18505188248.pdf
    • https://cdn.shopify.com/s/files/1/0435/7003/6904/files/46488134846.pdf
    • https://cdn.shopify.com/s/files/1/0430/8297/3346/files/74951333898.pdf
    • https://cdn.shopify.com/s/files/1/0438/8395/4328/files/beowulf_poem_summary.pdf
    • https://cdn.shopify.com/s/files/1/0433/2004/9822/files/fubuzurulejikegefatiji.pdf
    • https://cdn.shopify.com/s/files/1/0428/7427/3948/files/59308236229.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_off00006042.bin
2d8b5e125a27f584e06e9659451b6d76b31b340999c2f1dbd05218d230f0266e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6042 4920 bytes
font_01_sfnt_off000070de.bin
47a2e39a9e6618b0449d71321ef91ae8361a6df57b72082cbe650602a7bd7985		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70DE 9680 bytes
font_02_sfnt_off0000920e.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x920E 4324 bytes

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