Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0644191b14e0a82…

MALICIOUS

PDF

38.7 KB Created: 2020-08-21 12:46:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4a3ebc40b688d519e70f9e2422aabc50 SHA-1: d0990f3b4501cbeb9afa1a295d2b939dc03a8897 SHA-256: e0644191b14e0a82dcf84ff2cb45fcc54f5ec75e2db6fbede4edf77f80278e8d
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains embedded links that are identified as malicious redirectors. The document body, though partially corrupted, suggests a lure related to 'music sheet template printable'. The primary malicious URL identified is https://ttraff.com/pify?keyword=music+sheet+template+printable, which is likely used to redirect the user to a further malicious destination. The presence of numerous external PDF links, many pointing to potentially compromised Shopify domains, indicates a link farm strategy to obscure the ultimate malicious destination.

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=music+sheet+template+printable
    • http://gepuxu.globaleducationmove.com/uploads/1/3/1/4/131438500/dodopamusumawovu.pdf
    • http://juvusig.procon-loe.ru/uploads/1/3/2/6/132682646/zurekasutasajo-wobogexo-difirorek-kolujixefa.pdf
    • http://files.mary-johnson.com/uploads/1/3/0/7/130775917/joporovedaloliduk.pdf
    • https://cdn.shopify.com/s/files/1/0433/6071/4904/files/61625373125.pdf
    • https://cdn.shopify.com/s/files/1/0431/4369/2445/files/yahoo_finance_apk.pdf
    • https://cdn.shopify.com/s/files/1/0433/9495/7475/files/bsc_syllabus_pune_university.pdf
    • https://cdn.shopify.com/s/files/1/0438/1782/8512/files/sikikurubagobotisukupatu.pdf
    • https://cdn.shopify.com/s/files/1/0427/9946/4611/files/babogap.pdf
    • https://cdn.shopify.com/s/files/1/0432/9163/9968/files/61216008745.pdf
    • https://cdn.shopify.com/s/files/1/0434/7153/6285/files/90260065600.pdf
    • https://cdn.shopify.com/s/files/1/0428/5143/4659/files/90749514561.pdf
    • https://cdn.shopify.com/s/files/1/0431/1656/0550/files/tiwuwuzipiwuzajimerufoxi.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_off00005998.bin
1a6e135e0ed71de799bfda32c15b3449e6de6c5dba8f89f4cd4fbbcf11c48a01		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5998 5316 bytes
font_01_sfnt_off00006b7c.bin
7042258c74d9b3d6726704b01056cf8a36ad1a29c1adf596d4405d5bfc919a74		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B7C 10172 bytes

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