Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8ed7f093a3dd6ba…

MALICIOUS

PDF

47.1 KB Created: 2020-08-14 13:03:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 55c23b51400ab9f06fbd2f5acf500113 SHA-1: 498455a6f8ec717aefce09eb0bede208be303641 SHA-256: e8ed7f093a3dd6baf819c0494aaf74e83f7171718e1ad8a94b6a02eea58de7ed
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, identified as a PDF link farm. The primary URL, 'https://ttraff.com/pify?keyword=australian+calendar+2018+template', is flagged as a malicious redirector. This suggests the document is designed to lure users to malicious sites, likely for phishing or to download further malware. No scripts were extracted, and the document body is heavily obfuscated, but the link farm and redirector are strong indicators of malicious intent.

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.com/pify?keyword=australian+calendar+2018+template
    • http://files.larryagibbons.com/uploads/1/3/1/3/131384589/terijelani.pdf
    • http://files.executive-advocate.com/uploads/1/3/1/3/131379406/kowisi_gulatapagupitol_pifuzunefowoz_fagamiz.pdf
    • http://files.setonmiraclemiles.com/uploads/1/3/1/6/131636990/af6c589f5ac6d5e.pdf
    • http://files.estellessweetitchblankets.com/uploads/1/3/1/4/131409170/tixavaxanepuluxuvit.pdf
    • http://kozumi.noretasdecor.com/uploads/1/3/0/7/130775982/xubamesezirozurifub.pdf
    • https://cdn.shopify.com/s/files/1/0430/8808/5145/files/87944406906.pdf
    • https://cdn.shopify.com/s/files/1/0428/6837/5719/files/12679970689.pdf
    • https://cdn.shopify.com/s/files/1/0429/2041/1303/files/pilamurosepuwakubedu.pdf
    • https://cdn.shopify.com/s/files/1/0435/6908/6623/files/zoxamaponazesuwekin.pdf
    • https://cdn.shopify.com/s/files/1/0430/4578/1665/files/wibazipagerinabowezi.pdf
    • https://cdn.shopify.com/s/files/1/0440/1430/5430/files/sixixiwe.pdf
    • https://cdn.shopify.com/s/files/1/0435/2756/9576/files/47176734503.pdf
    • https://cdn.shopify.com/s/files/1/0434/4601/0022/files/gutogubikanatumida.pdf
    • https://cdn.shopify.com/s/files/1/0437/3502/3770/files/puditebesa.pdf
    • https://cdn.shopify.com/s/files/1/0430/0986/7929/files/92423847177.pdf
    • https://cdn.shopify.com/s/files/1/0440/5107/1126/files/vopuxoranekelozage.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/
    • https://cdn.shopify.com/s/files/1/0440/5107/1126/files/vopuxoranekel

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006348.bin
380d3fe852881af41c0172aaad3fa43e4a9eeddc9c793ffa7c50c7e587fa639f
pdf-font-stream PDF embedded font (sfnt) at offset 0x6348 5728 bytes
font_01_sfnt_off000076a8.bin
278e55e26b5d1efe9e5d85e30108ee1d28bc87f9170bc79717d5302b8a2a5643
pdf-font-stream PDF embedded font (sfnt) at offset 0x76A8 10456 bytes
font_02_sfnt_off000099ff.bin
aed46c9af23f208f135cb03afacfd1ac790ba89857c5134c11dc43e7260cc7d5
pdf-font-stream PDF embedded font (sfnt) at offset 0x99FF 16108 bytes