Malicious PDF — malware analysis report

Static analysis result for SHA-256 292e58adcd61a7a0…

MALICIOUS

PDF

47.3 KB Created: 2020-08-08 15:05:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c2647a310bd1627740ba34c7fd7e6733 SHA-1: 72ee8a48d81659d044459d19d62ce4bdd8f9e7d2 SHA-256: 292e58adcd61a7a04b9b6f63d4f02ad909df7e92a31a5136ae4f233584e0573c
128 Risk Score

Malware Insights

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

The PDF file exhibits characteristics of a link farm, embedding numerous external links to other PDF documents. One of these links, 'https://ttraff.cc/pify?keyword=isometric+projection+pdf+vtu', is identified as a malicious redirector. The presence of a visual download button lure further supports the malicious intent. The primary goal appears to be redirecting users to malicious infrastructure, likely for subsequent malware delivery.

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.cc/pify?keyword=isometric+projection+pdf+vtu
    • http://files.norfolkwestridgeumc.org/uploads/1/3/1/3/131378990/8e7e970edb.pdf
    • http://files.efhstsa.org/uploads/1/3/0/8/130813818/xuwazawobudonavam.pdf
    • http://files.seniormed.info/uploads/1/3/1/4/131437873/riweded.pdf
    • https://cdn.shopify.com/s/files/1/0436/7591/0294/files/html5_audio_player_with_playlist.pdf
    • https://cdn.shopify.com/s/files/1/0436/4579/6512/files/office_building_design_standards.pdf
    • https://cdn.shopify.com/s/files/1/0436/2698/7680/files/pexage.pdf
    • https://cdn.shopify.com/s/files/1/0444/3511/2103/files/namakam_chamakam.pdf
    • https://cdn.shopify.com/s/files/1/0427/5906/1670/files/mumupisaseruvisuwa.pdf
    • https://cdn.shopify.com/s/files/1/0435/1574/0312/files/doxawo.pdf
    • https://cdn.shopify.com/s/files/1/0432/4671/5040/files/dexaligabevujigiseveze.pdf
    • https://cdn.shopify.com/s/files/1/0431/0781/1495/files/ms_to_seconds.pdf
    • https://cdn.shopify.com/s/files/1/0430/3729/4754/files/raselemaf.pdf
    • https://cdn.shopify.com/s/files/1/0440/9245/7112/files/virokexope.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_off00006b21.bin
c77b99c9eb5be76a52afa9a0262af6ce283dc6e0afb6acf25cfa452cec7a9ea2
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B21 5132 bytes
font_01_sfnt_off00007c8e.bin
2bebf3dfc216e9aba3ba92a39553b4ae1a8629c95bfe613c18192af34401d74b
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C8E 17128 bytes