Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e2e08f19ac65761…

MALICIOUS

PDF

58.7 KB Created: 2020-08-20 03:32:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 049668b618d88750834e47033471e3e4 SHA-1: d764b7ab820f3de5e63b8ccae10345b6ffab5680 SHA-256: 2e2e08f19ac657617009105fec02b695aa2e1a34e8d27b7fb43af00479f94b0b
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.com) known for malicious activity. This indicates the document is designed to lure users to malicious sites, likely for further exploitation or phishing. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=trastornos+del+estado+de+animo+definicion+pdf
    • http://files.murphyindexing.com/uploads/1/3/1/6/131637374/tonozewevariru_kunikiziv.pdf
    • http://vorozi.pleasantvalleydays.com/uploads/1/3/1/4/131406665/75198f84.pdf
    • http://files.youthmariachi.com/uploads/1/3/2/3/132303175/27b1b4.pdf
    • https://cdn.shopify.com/s/files/1/0432/5851/1510/files/berlitz_english_level_2_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/7537/1159/files/wuminafonija.pdf
    • https://cdn.shopify.com/s/files/1/0431/2429/3796/files/23775930464.pdf
    • https://cdn.shopify.com/s/files/1/0437/7991/5937/files/oxford_bookworms_library_epub.pdf
    • https://cdn.shopify.com/s/files/1/0434/7520/6294/files/29935148298.pdf
    • https://cdn.shopify.com/s/files/1/0437/7001/9998/files/18242194214.pdf
    • https://cdn.shopify.com/s/files/1/0437/1929/5131/files/jubaludusadezexixuxe.pdf
    • https://cdn.shopify.com/s/files/1/0438/0416/4257/files/opposite_words_in_english_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/5894/4405/files/71302375984.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/65069223210.pdf
    • https://cdn.shopify.com/s/files/1/0437/5229/2513/files/34237107587.pdf
    • https://cdn.shopify.com/s/files/1/0438/6773/4171/files/ssa-_3368-_bk.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_off0000a429.bin
f052fecf3d24c9a84e9431fd79dac9684b79a1597deccf171b5a50c6d26dc714		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA429 5248 bytes
font_01_sfnt_off0000b5e8.bin
ede51f9617c43d3a0f842b3d111e4811fd1d7beb3f5fd06ca549f132aed9a9fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB5E8 11600 bytes

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