Malicious PDF — malware analysis report

Static analysis result for SHA-256 eba5d45111be524b…

MALICIOUS

PDF

60.3 KB Created: 2020-07-27 16:20:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: eedfd2c8b267e499ff1e3299c59643eb SHA-1: f35af74f3de65a075a55115e0495e67f33779ae8 SHA-256: eba5d45111be524b0a61e3e049ebc60db8544b6a81e7ca962745495c9a222530
130 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it features a PDF link farm heuristic, indicating a large number of outbound links, many hosted on Shopify. The document body, though heavily obfuscated, contains text related to printing images and Google Sheets, likely a lure. The presence of a download button heuristic further supports a malicious workflow.

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=print+images+google+sheets
    • http://files.kellykrajeckiart.com/uploads/1/3/1/4/131453065/3252597.pdf
    • http://files.dunblanebowlingclub.org.uk/uploads/1/3/1/3/131383949/2216f4b42a.pdf
    • http://files.thewaxball.com/uploads/1/3/2/6/132682171/1720566.pdf
    • http://files.islandromer.com/uploads/1/3/0/7/130775978/5663768.pdf
    • https://cdn.shopify.com/s/files/1/0433/7818/0257/files/nizoxudetipifo.pdf
    • https://cdn.shopify.com/s/files/1/0430/9732/5732/files/56175673556.pdf
    • https://cdn.shopify.com/s/files/1/0429/9915/2799/files/derobemigimulotov.pdf
    • https://cdn.shopify.com/s/files/1/0433/7234/7550/files/berukolafi.pdf
    • https://cdn.shopify.com/s/files/1/0435/5496/3617/files/womagu.pdf
    • https://cdn.shopify.com/s/files/1/0431/0558/3266/files/juvaxadijikabufidiw.pdf
    • https://cdn.shopify.com/s/files/1/0429/5039/4019/files/67938261621.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99914628395.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ridojunewosinojep.pdf
    • https://cdn.shopify.com/s/files/1/0430/0747/5875/files/jubukosogetagifomidexapa.pdf
    • https://cdn.shopify.com/s/files/1/0436/9291/6891/files/98374618451.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007563.bin
7a68e0a374b13ce4fc1843d5bd83951dfa24db5a1609023d75d240d157c1dd9f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7563 4348 bytes
font_01_sfnt_off000084de.bin
e9732d50e5c2da7c19d59bd234319ce3d8bf1202480688d903665984e35d460f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84DE 4888 bytes
font_02_sfnt_off00009535.bin
89f2df7e29489cb974b4acfcb60cf6bf27efbf236edde725ce869e2694545516		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9535 11204 bytes
font_03_sfnt_off0000bbe4.bin
7f1148f0f41cc0188f5153c786933fb0dae631895f0b7891f2b9627d896856fe		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBBE4 17244 bytes
font_04_sfnt_off0000d586.bin
e0fd0490ab9470513b8d2b1b8d7992f25ed09c0bde43ea5eb2d216e8b7aecf6a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD586 3432 bytes

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