Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b39906dc3fd51ec…

MALICIOUS

PDF

46.4 KB Created: 2020-08-02 16:23:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 89fe2241af4aaec0b8575abd5bb32680 SHA-1: 66ea84ff14d0f33519e636f0256713f1bdd50f72 SHA-256: 3b39906dc3fd51ece29ac6a458ce86877e838cbfc231f42198f02c61b7d71449
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=video+locker+pro'. Additionally, it exhibits a PDF link farm behavior, with numerous links pointing to Shopify domains, likely to obscure the malicious redirector. The document body contains the malicious URL and other embedded URLs, suggesting a lure 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.
  • 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.
  • 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=video+locker+pro
    • http://files.armandalegmusic.com/uploads/1/3/1/4/131408103/bd8709.pdf
    • http://files.drawingonmusic.com/uploads/1/3/1/0/131070044/mupesibudunug-womexezaluzo.pdf
    • http://files.lori.com.au/uploads/1/3/2/3/132303378/2923888.pdf
    • http://files.crozetaces.org/uploads/1/3/1/4/131406442/tukilologedo.pdf
    • http://files.positiveposturenz.com/uploads/1/3/1/4/131483550/sivaf_polatafi_zuwovil.pdf
    • https://cdn.shopify.com/s/files/1/0429/5432/6179/files/romavizizemarok.pdf
    • https://cdn.shopify.com/s/files/1/0436/1378/2173/files/64610828964.pdf
    • https://cdn.shopify.com/s/files/1/0434/1887/8114/files/photoshop_tutorials_for_beginners_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/1593/7948/files/heavy_linen_bandage.pdf
    • https://cdn.shopify.com/s/files/1/0433/8089/9991/files/somukelubufuw.pdf
    • https://cdn.shopify.com/s/files/1/0428/1267/0111/files/90685652336.pdf
    • https://cdn.shopify.com/s/files/1/0434/7078/2614/files/21983785939.pdf
    • https://cdn.shopify.com/s/files/1/0429/9898/8954/files/59452535445.pdf
    • https://cdn.shopify.com/s/files/1/0437/7693/4042/files/64575343753.pdf
    • https://cdn.shopify.com/s/files/1/0428/7037/4559/files/68430480499.pdf
    • https://cdn.shopify.com/s/files/1/0431/6784/2455/files/windows_communication_foundation_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0434/2949/4933/files/85005744045.pdf
    • https://cdn.shopify.com/s/files/1/0427/8019/7031/files/wawarusejixojejew.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_off0000639c.bin
ddecbf6d0d5ad5872cc46ae0b8c3ae5e88d76427cc8080361adc935bce4e05a7
pdf-font-stream PDF embedded font (sfnt) at offset 0x639C 4708 bytes
font_01_sfnt_off000073b4.bin
aed18dc3053f2d227c70a17a107999d6861aa0aa46418eed7155c4d74fa6d7fa
pdf-font-stream PDF embedded font (sfnt) at offset 0x73B4 10516 bytes
font_02_sfnt_off000097da.bin
c9557d91917e40dbb2ce09b7ef560a04a9a832ffe2ebcac6b50408a58351272e
pdf-font-stream PDF embedded font (sfnt) at offset 0x97DA 16092 bytes