Malicious PDF — malware analysis report

Static analysis result for SHA-256 bcdecf1033ed995f…

MALICIOUS

PDF

45.0 KB Created: 2020-08-17 13:43:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0ef3f387190581f02761a86d6a3aa917 SHA-1: f1b1e03ee2aff9248eabc1e9e998ff741f4d1dfa SHA-256: bcdecf1033ed995f3a4c41e4b98911b7f0979ed8b3f7de1ca7df11772af6c7bf
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 Command and Scripting Interpreter: PowerShell

The PDF contains a link farm and a malicious redirector URL, indicating an attempt to lead the user to a malicious site. The presence of a 'download button' lure reinforces this. The document body, though heavily obfuscated, contains the malicious URL and appears to be related to 'giving tuesday email templates', suggesting a phishing or scam lure. No scripts were extracted, limiting the analysis of further payload 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.com/pify?keyword=giving+tuesday+email+templates
    • http://loxivinan.edenhopeshow.com/uploads/1/3/1/3/131383483/peboga_govarufemeruk.pdf
    • http://fofok.jennrudel.net/uploads/1/3/0/7/130740069/jegusubopaval.pdf
    • http://tutan.goldengatecyclists.org/uploads/1/3/1/6/131606505/b7384c856cfa0a.pdf
    • http://files.allsaintslethbridge.org/uploads/1/3/1/4/131437532/3719068.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wetitoditasenubekuxon.pdf
    • https://cdn.shopify.com/s/files/1/0430/6183/7981/files/fofosupujovanafiwileniwud.pdf
    • https://cdn.shopify.com/s/files/1/0438/1986/0125/files/psychological_barriers_to_communication.pdf
    • https://cdn.shopify.com/s/files/1/0431/2491/6388/files/87217958618.pdf
    • https://cdn.shopify.com/s/files/1/0434/8621/6344/files/dugafatajolumijutatetupug.pdf
    • https://cdn.shopify.com/s/files/1/0437/6081/2190/files/bhagavad_gita_summary_in_telugu.pdf
    • https://cdn.shopify.com/s/files/1/0433/4367/5560/files/36993185707.pdf
    • https://cdn.shopify.com/s/files/1/0433/2368/7067/files/7350615236.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_off00007155.bin
29d051b2d6f13d2e10468b0e89a1ef4c041751af10248adb5a3c52f6958d1947		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7155 5376 bytes
font_01_sfnt_off000083a5.bin
239e2137018c3d32670691d247c41f2a96fb118e0615fe9363e27e5da982b2e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x83A5 10636 bytes

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