Malicious PDF — malware analysis report

Static analysis result for SHA-256 2785d8e15c2580b4…

MALICIOUS

PDF

50.9 KB Created: 2020-08-22 02:32:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 63716d78fd27331efa403854739841c3 SHA-1: 59f198f50110f60af996028ea4e1d919df976cc7 SHA-256: 2785d8e15c2580b49f91bd1b1f08afb34c8a9ea51137d600139938e081b3cf0d
128 Risk Score

Malware Insights

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

The PDF file contains a mass external link farm, with one prominent link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains a URL that appears to be a lure for 'Netflix ad free apk'. This suggests the document is designed to redirect users to malicious content or phishing sites. No scripts were extracted from this sample.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=netflix+ad+free+apk
    • http://lemeguxo.comeshootwithme.com/uploads/1/3/2/3/132302956/e97b6e73afe4ce.pdf
    • http://devinif.madeintombstone.com/uploads/1/3/1/1/131163599/b5d910a7cfa2.pdf
    • http://files.woodworkerhowardlobb.com/uploads/1/3/0/7/130740323/timod_xofatixil_supapilibegi.pdf
    • http://files.theldaroy.com/uploads/1/3/1/1/131164386/9506743.pdf
    • https://cdn.shopify.com/s/files/1/0437/7303/4658/files/bufotivano.pdf
    • https://cdn.shopify.com/s/files/1/0430/6373/8529/files/biodegradable_plastic_from_banana_peels.pdf
    • https://cdn.shopify.com/s/files/1/0438/0708/0608/files/17869771288.pdf
    • https://cdn.shopify.com/s/files/1/0438/2811/7661/files/science_dictionary_english_to_marathi.pdf
    • https://cdn.shopify.com/s/files/1/0431/2373/6725/files/58711258284.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/surorut.pdf
    • https://cdn.shopify.com/s/files/1/0429/1536/5031/files/97606312582.pdf
    • https://cdn.shopify.com/s/files/1/0437/0785/9096/files/wow_classic_alterac_swiss.pdf
    • https://cdn.shopify.com/s/files/1/0432/1227/5870/files/birch_plywood_sheets_6mm.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_off000074cf.bin
63cbaae738a001897d4e825fe70585eb8e284121247bb35b2a5e115ce95377c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74CF 4960 bytes
font_01_sfnt_off000085c7.bin
f3b86d84c9a44bc0575c3ce71481dba7e308e751c09ddc1ab6492ffe241125b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85C7 10488 bytes
font_02_sfnt_off0000a9d7.bin
e296a61d2d303e35be9e1a35631556663d2780498efa7e8f3867bf557f172fe6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA9D7 16164 bytes

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