Malicious PDF — malware analysis report

Static analysis result for SHA-256 e795099e531a8c62…

MALICIOUS

PDF

48.4 KB Created: 2020-08-03 06:53:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3d2676df15e2e46d012dd2060b6cc439 SHA-1: 1476d3e14c1c5830aa174e0981518264f57a6940 SHA-256: e795099e531a8c621af9b97c4c0d2dac230a23ea38a893dafe54c272640f8993
120 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, specifically pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL. This indicates a phishing attempt to redirect users to malicious infrastructure. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to distribute the malicious 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=project+diva+x+song+list
    • http://files.aromashoppe.com/uploads/1/3/1/4/131413718/2080381.pdf
    • http://files.kimberleychiropractic.com/uploads/1/3/0/9/130969465/1249c57.pdf
    • http://files.allgeierchiropractic.com/uploads/1/3/1/4/131409333/zowaruwutolekum.pdf
    • http://files.corpsefeed.com/uploads/1/3/1/4/131453588/1965cc27ee.pdf
    • https://cdn.shopify.com/s/files/1/0431/6531/9324/files/9475357081.pdf
    • https://cdn.shopify.com/s/files/1/0433/4842/6902/files/jafasolosunufimixaxa.pdf
    • https://cdn.shopify.com/s/files/1/0430/1009/7313/files/raspberry_pi_google_calendar.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dotedijulukamani.pdf
    • https://cdn.shopify.com/s/files/1/0428/3308/4575/files/63937949989.pdf
    • https://cdn.shopify.com/s/files/1/0434/7628/7648/files/kikabu.pdf
    • https://cdn.shopify.com/s/files/1/0431/7410/1160/files/kabitafasiw.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/88065476392.pdf
    • https://cdn.shopify.com/s/files/1/0434/2336/7335/files/connect_to_mcdonalds_wifi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zijuk.pdf
    • https://cdn.shopify.com/s/files/1/0429/6241/9863/files/500534398.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_off000067d1.bin
58fc8bf6a00e1babd189b5bacf3198d41b48eb51d8e8800c5004f3fcf47774ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67D1 6400 bytes
font_01_sfnt_off00007ddf.bin
dd4e52f91cf975fca825dfcf2b043d601b0d416e9a770842e669cda85001546c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DDF 5312 bytes
font_02_sfnt_off00009008.bin
fde334f179d8c80ffeaf9bb8d76fa9bfaefa651904d64a829a245c711ecb584b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9008 10548 bytes

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