Malicious PDF — malware analysis report

Static analysis result for SHA-256 be2efc891554b313…

MALICIOUS

PDF

37.3 KB Created: 2020-08-21 22:03:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 493b4df3e7927a5a49bf3641fbbbec32 SHA-1: dadb23ee8ae4adc1c943d0b08351b432e10c66f8 SHA-256: be2efc891554b313b96d48afdb97eab158a18415173cd6db75eee7235882e5ef
120 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to shopify.com domains hosting PDF files, suggesting a link farm or SEO poisoning tactic. One critical heuristic identified a link to a known malicious redirector at 'ttraff.com'. The document body itself contains the primary malicious URL and several other PDF links, indicating an attempt to direct the user to potentially harmful content.

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=nse+nmf+2+platform
    • http://files.didodey.com/uploads/1/3/1/3/131398139/fepawifezazenuviwed.pdf
    • http://files.guttenbergcreativitycenter.com/uploads/1/3/1/3/131381607/5492081.pdf
    • https://cdn.shopify.com/s/files/1/0428/2748/1255/files/dadot.pdf
    • https://cdn.shopify.com/s/files/1/0428/2381/1239/files/love_scenes_whatsapp_status_telugu.pdf
    • https://cdn.shopify.com/s/files/1/0431/4769/0145/files/rivomak.pdf
    • https://cdn.shopify.com/s/files/1/0432/7650/1147/files/15033989998.pdf
    • https://cdn.shopify.com/s/files/1/0433/3161/6923/files/2020_calendar_marathi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/34530012154.pdf
    • https://cdn.shopify.com/s/files/1/0429/8866/7039/files/1346948606.pdf
    • https://cdn.shopify.com/s/files/1/0430/8497/2183/files/53020742364.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/96512150342.pdf
    • https://cdn.shopify.com/s/files/1/0429/7064/4631/files/73350125163.pdf
    • https://cdn.shopify.com/s/files/1/0440/8901/6472/files/materi_organel_sel.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_off00004854.bin
50dffc25afa9e75152d7ebbb9694dda6fad38ef742badd60257f4980268a8407		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4854 4888 bytes
font_01_sfnt_off000058cc.bin
a1148cd189706b354a3fe62f307abc9a1fa508f413def028c8e748e1d91402e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58CC 9960 bytes
font_02_sfnt_off00007ada.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7ADA 4324 bytes

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