Malicious PDF — malware analysis report

Static analysis result for SHA-256 f40e88709e7e2546…

MALICIOUS

PDF

41.8 KB Created: 2020-08-25 08:11:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9575beb6ed403fcfa9aa03043e95ca7c SHA-1: 93c8393fde7ddb42e6ca77a58f7938e3234e3285 SHA-256: f40e88709e7e254665661e0031252a513273f5187d303885612f881272ba57e5
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a PDF link farm. One of these links, 'https://ttraff.com/pify?keyword=lagu+atta+halilintar', is flagged as a malicious redirector. The primary purpose appears to be directing users to potentially harmful content through this link farm.

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=lagu+atta+halilintar
    • http://files.410intheden.com/uploads/1/3/0/8/130813818/bca3423c480eea.pdf
    • http://files.outofsamsara.com/uploads/1/3/2/8/132814791/1241842.pdf
    • https://cdn.shopify.com/s/files/1/0431/5322/7936/files/96756374453.pdf
    • https://cdn.shopify.com/s/files/1/0431/9212/3560/files/11144572984.pdf
    • https://cdn.shopify.com/s/files/1/0464/6495/8616/files/cara_membuat_template_layout_arcgis.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/69440205977.pdf
    • https://cdn.shopify.com/s/files/1/0431/8029/4298/files/kugimipufijexu.pdf
    • https://cdn.shopify.com/s/files/1/0430/8100/7255/files/sefivimagagumaxene.pdf
    • https://cdn.shopify.com/s/files/1/0430/9811/2167/files/hide_caller_id_apk_pro.pdf
    • https://cdn.shopify.com/s/files/1/0435/2399/7856/files/10137706601.pdf
    • https://cdn.shopify.com/s/files/1/0431/9900/4831/files/witewizifadipumupip.pdf
    • https://cdn.shopify.com/s/files/1/0462/3669/6736/files/54711362002.pdf
    • https://cdn.shopify.com/s/files/1/0434/9113/1557/files/vakiwekalemapakaw.pdf
    • https://cdn.shopify.com/s/files/1/0430/8307/1650/files/39887071010.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_off00005b0f.bin
f8689cb6a9c3666faa2f6e36cd9844617453f3e56765aa4783d509871f0b70a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B0F 4364 bytes
font_01_sfnt_off000069ba.bin
8e47c671ec33eb9642160f09a968f5da3bab7937d5f31af6eaf134a3af24a858		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69BA 10148 bytes
font_02_sfnt_off00008c6f.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C6F 4324 bytes

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