Malicious PDF — malware analysis report

Static analysis result for SHA-256 e744238507f7f45a…

MALICIOUS

PDF

58.7 KB Created: 2020-09-03 12:49:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: abd242ed93d5604fe89f83a9245837ad SHA-1: 4c0440065bd4e4d6f6765009a8586a36d246b4ae SHA-256: e744238507f7f45a4d29cfa26e7fb48de595a23cdf89bf1226ae9f6a578e0e3d
150 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.me/wix?keyword=friends+birthday+song+in+tamil'. Additionally, it features a PDF link farm with numerous external links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains the same malicious URL. The primary attack pattern involves redirecting the user to a potentially harmful website.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9953

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.me/wix?keyword=friends+birthday+song+in+tamil
    • https://static.usrfiles.com/ugd/a6e5e9_1d4ab4d134c6469b91c441206676d9cd.pdf
    • https://static.usrfiles.com/ugd/b8c837_67c4a6076db942e58773b731ffea74fe.pdf
    • https://static.usrfiles.com/ugd/0d002d_7025df3d484e480292c313259c716cd7.pdf
    • https://static.usrfiles.com/ugd/d1d005_0b3317bba1444956be46a8a42459ec29.pdf
    • https://static.usrfiles.com/ugd/1a89c8_028196c465d34aa790e6e7ba5ee9c365.pdf
    • https://cdn.shopify.com/s/files/1/0427/6482/8839/files/nebedejujujixokef.pdf
    • https://cdn.shopify.com/s/files/1/0432/9570/3204/files/93472201348.pdf
    • https://cdn.shopify.com/s/files/1/0427/7751/0055/files/the_river_gary_paulsen.pdf
    • https://cdn.shopify.com/s/files/1/0435/1862/3896/files/2346252000.pdf
    • https://cdn.shopify.com/s/files/1/0432/9639/1323/files/sojuxoga.pdf
    • https://cdn.shopify.com/s/files/1/0430/9496/6429/files/lozewa.pdf
    • https://cdn.shopify.com/s/files/1/0459/9044/5213/files/sugavipoxeze.pdf
    • https://cdn.shopify.com/s/files/1/0431/0315/8433/files/active_directory_windows_server_2020_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0429/3351/8489/files/administrao_publica_conceitos_e_principios.pdf
    • https://cdn.shopify.com/s/files/1/0437/3364/7509/files/38442446245.pdf
    • https://cdn.shopify.com/s/files/1/0432/9639/1323/fi

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ab31.bin
7dda45f685006f262f00555d7911a37e1a425f99a57285e9d968ab138ff6853a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAB31 5436 bytes
font_01_sfnt_off0000bd8b.bin
c564ccacc54c675d238071f7599c9eb239d466581231e1092107b2f80cd2cb12		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBD8B 12948 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.