Malicious PDF — malware analysis report

Static analysis result for SHA-256 a558869e28eb2bfa…

MALICIOUS

PDF

34.2 KB Created: 2020-08-17 07:27:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4dfa2db2d8c86bd9657327c289c3cc46 SHA-1: b250fda382513e22d641d201177a4efeb061d7ce SHA-256: a558869e28eb2bfa621eeaf18bbf831e0ae0d2951c8d12ac872136a8f2e453bb
120 Risk Score

Malware Insights

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

The PDF contains a link farm and a critical redirector link pointing to `https://ttraff.ru/pify?keyword=bad+boy+bubby+full+movie++free`. This indicates a social engineering lure, likely to trick users into downloading malware or visiting a malicious site. The document body, though heavily obfuscated, contains text related to movie downloads, reinforcing the lure. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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/pify?keyword=bad+boy+bubby+full+movie++free
    • http://files.davidballmovieman.com/uploads/1/3/1/8/131856852/d0bd111.pdf
    • http://files.womanbloom.org/uploads/1/3/0/7/130739146/3cd1d0a843f950f.pdf
    • http://files.fpocharity.com/uploads/1/3/0/8/130874067/lejajudepi.pdf
    • https://cdn.shopify.com/s/files/1/0430/8120/3861/files/bakadaduzinekefemoz.pdf
    • https://cdn.shopify.com/s/files/1/0433/9790/6589/files/45876029473.pdf
    • https://cdn.shopify.com/s/files/1/0432/3547/5624/files/sefudabexuwijivoxotutemax.pdf
    • https://cdn.shopify.com/s/files/1/0435/5905/9615/files/61976920740.pdf
    • https://cdn.shopify.com/s/files/1/0437/4183/9511/files/rugin.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/76102764406.pdf
    • https://cdn.shopify.com/s/files/1/0437/1123/4197/files/xodadimesax.pdf
    • https://cdn.shopify.com/s/files/1/0437/2961/7057/files/industrial_applications_of_lasers_john_f_ready.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_off0000477f.bin
c2ff5b3e6458995161833bff52cbbbdb2e36585a1f81eaeba882664889adfce4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x477F 5224 bytes
font_01_sfnt_off0000593e.bin
6b88635ad5ad101e520526094f6b55fe659eb39723f7b7a101e975d1151f8560		 pdf-font-stream PDF embedded font (sfnt) at offset 0x593E 10296 bytes

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