Malicious PDF — malware analysis report

Static analysis result for SHA-256 34e0c06fe9f38747…

MALICIOUS

PDF

45.6 KB Created: 2020-08-15 18:03:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b6b6a990771553c472bffcbf842d77b1 SHA-1: 659bbd24b7ed141e4be896f1e80666887584c91b SHA-256: 34e0c06fe9f38747bef438ac60e554557b27b383294d5d3a548de953b7e4e635
150 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 exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify. The document body, though heavily obfuscated, contains the malicious URL and appears to be a lure related to 'solucion haemaccel pdf'. No scripts were extracted from this sample.

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/wb?keyword=solucion%20haemaccel%20pdf
    • http://juwusu.joyhealthylife.com/uploads/1/3/2/8/132814930/3169033.pdf
    • http://files.sandiegosuzukiinstitute.com/uploads/1/3/0/7/130776200/a1dfdeb882.pdf
    • http://files.romanzapata.com/uploads/1/3/1/4/131437253/6e3ffbe.pdf
    • http://deximute.sacredembodiment.net/uploads/1/3/1/3/131384260/girakaxipodeno.pdf
    • https://cdn.shopify.com/s/files/1/0431/1931/3053/files/17927895442.pdf
    • https://cdn.shopify.com/s/files/1/0428/6460/7398/files/cd_action_1999.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/76410179135.pdf
    • https://cdn.shopify.com/s/files/1/0436/4494/4542/files/bazimasid.pdf
    • https://cdn.shopify.com/s/files/1/0430/1049/0519/files/pekubemunivusuveb.pdf
    • https://cdn.shopify.com/s/files/1/0429/0671/4268/files/games_for_windows_live_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/8014/7359/files/movonowuwiwovoras.pdf
    • https://cdn.shopify.com/s/files/1/0436/7423/9129/files/sonabijiluziganob.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_off000071b8.bin
6cda1d34c92c86edac195f89cfe75f8d3396bf8561d396a19aa3372cd4b13c4f
pdf-font-stream PDF embedded font (sfnt) at offset 0x71B8 5224 bytes
font_01_sfnt_off00008352.bin
4d1d83417e81e2cc89ba29a96e7346b582d99f81ce6082f8f697f274f2fe709a
pdf-font-stream PDF embedded font (sfnt) at offset 0x8352 11400 bytes