Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7a44bb5f07d0283…

MALICIOUS

PDF

32.5 KB Created: 2020-08-31 12:23:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3e864488e0e62ceb7769fe0a03544aaa SHA-1: 4b1393ce5224f0e76935894faf14b4c300dde31f SHA-256: e7a44bb5f07d028317588ed83fde5a4160ea1e9e5fabb86924285b07eeec1324
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, which is disguised as a movie download. This heuristic, combined with the PDF's structure containing a mass of external links, indicates a social engineering lure. The document body contains obfuscated text and a URL that appears to be the primary lure.

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.ru/wix?keyword=mohabbatein+full+movie+with+english+subtitles
    • https://static.usrfiles.com/ugd/2e4eb4_9e07f337cd0f49ab9c9f92379e62f454.pdf
    • https://static.usrfiles.com/ugd/08fe48_4d903e4decdc48448d5bca1e4e700e79.pdf
    • https://static.usrfiles.com/ugd/5b9a87_f5b794a645134deda8a5e0d2e97623e6.pdf
    • https://cdn.shopify.com/s/files/1/0439/9045/0334/files/33268628130.pdf
    • https://cdn.shopify.com/s/files/1/0431/7170/9092/files/72055446329.pdf
    • https://cdn.shopify.com/s/files/1/0463/0822/9280/files/96_tamil_movie_in_jio_rockers.pdf
    • https://static.usrfiles.com/ugd/9e14ca_62744a8d8cf14c478e28930398310ed2.pdf
    • https://static.usrfiles.com/ugd/b13fd1_1ff1944fd3d14995a39ce4efcb918eaa.pdf
    • https://static.usrfiles.com/ugd/008e52_62ac48f32da94e9c923f5b0cb9103bed.pdf
    • https://static.usrfiles.com/ugd/fd30ac_5c2e2057361b4589a4b5f8dee96c7f86.pdf
    • https://static.usrfiles.com/ugd/8b49c6_6fb5144a9b4949fe9a6861300679834c.pdf
    • https://cdn.shopify.com/s/files/1/0433/7362/5500/files/sequences_worksheet_igcse.pdf
    • https://cdn.shopify.com/s/files/1/0430/0144/6551/files/case_580_super_k_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0438/5934/5573/files/3d_cross_tattoo.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_off000043a8.bin
f086a377c2254d8536ade902f16ff78e511974ae8102ee7b43a91fe91804851a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x43A8 5384 bytes
font_01_sfnt_off000055f5.bin
b44c2aa0b61d4506c1e407d1862f4c285c74f97c3196f6b2249571a7e1d65e8f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55F5 9196 bytes

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