Malicious PDF — malware analysis report

Static analysis result for SHA-256 d19d8bc92ef9d8cc…

MALICIOUS

PDF

61.3 KB Created: 2020-08-16 22:57:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0fe9aa5e0b94ad752d718bde6ad50642 SHA-1: f14e5e2f169f6441c8c6567c63f9974e9427af5a SHA-256: d19d8bc92ef9d8cc4939c8fc818084257b8b17c0554ebd40a47ce4b01a4b047e
128 Risk Score

Malware Insights

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

The PDF contains a link that redirects to malicious infrastructure, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=angel+has+fallen+movie++300mb', suggesting a lure for downloading content. The PDF_SEO_LINK_FARM heuristic indicates a large number of links, many pointing to benign Shopify URLs, likely to mask the malicious redirector. No scripts were extracted from this sample.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.cc/pify?keyword=angel+has+fallen+movie++300mb
    • http://fuzip.chiyoungkim.com/uploads/1/3/1/3/131381521/827dc9681024c.pdf
    • http://files.wrangellmarinersmemorial.com/uploads/1/3/1/4/131453247/lopovejogo.pdf
    • http://files.vomhiddencreek.com/uploads/1/3/1/6/131606127/kukuko.pdf
    • http://dogeloj.mathematicalwhetstones.com/uploads/1/3/2/6/132683014/tijobibovibaromud.pdf
    • http://files.bonniegreenconsulting.com/uploads/1/3/1/4/131408572/7126363.pdf
    • https://cdn.shopify.com/s/files/1/0440/2823/1830/files/naruto_tabletop_rpg.pdf
    • https://cdn.shopify.com/s/files/1/0433/3810/5000/files/58570548795.pdf
    • https://cdn.shopify.com/s/files/1/0440/1332/2398/files/stammbaum_buddenbrooks.pdf
    • https://cdn.shopify.com/s/files/1/0431/7118/4794/files/jegolojutuzajiwef.pdf
    • https://cdn.shopify.com/s/files/1/0436/3635/9326/files/33057564366.pdf
    • https://cdn.shopify.com/s/files/1/0430/7176/6695/files/58735633731.pdf
    • https://cdn.shopify.com/s/files/1/0431/6191/1458/files/52102242868.pdf
    • https://cdn.shopify.com/s/files/1/0431/2816/0420/files/zaguzad.pdf
    • https://cdn.shopify.com/s/files/1/0431/1033/4620/files/40290040084.pdf
    • https://cdn.shopify.com/s/files/1/0433/4652/6376/files/foxepave.pdf
    • https://cdn.shopify.com/s/files/1/0433/3237/0584/files/1200_bosquejos_biblicos_para_predicar_y_ensear.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 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064db.bin
fffcdaa50dd7fe85029e52e614fb741e1b88a0cbdbf9a57bfb5dcc95cbbae454		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64DB 5288 bytes
font_01_sfnt_off000076a9.bin
87985804ebf98b1030980f20b4e39595e1aa76caccafc3e7d64f2ca02509db1c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76A9 20968 bytes
font_02_sfnt_off000096da.bin
5e0676e134781f2a21c06a0d045eebc95ad2f72f5ed7fc876ffdcead7ccbe471		 pdf-font-stream PDF embedded font (sfnt) at offset 0x96DA 2276 bytes
font_03_sfnt_off0000a0a4.bin
aaf58aabd97fb65300a7902210c27013703b0ae0e54165e96eb3729f218bcfbf		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA0A4 14744 bytes
font_04_sfnt_off0000ce4c.bin
e5f30af547b55dfbbae63869c45e93d04e829a64999393572a2275da8290585e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCE4C 2056 bytes
font_05_sfnt_off0000d703.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD703 4324 bytes

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