Malicious PDF — malware analysis report

Static analysis result for SHA-256 19f0161a5fb97179…

MALICIOUS

PDF

40.3 KB Created: 2020-09-13 09:08:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8083e737cef3f8591df908ced7ec16a8 SHA-1: f62ca5294f805f38a106f6f257fe2e902347b4f0 SHA-256: 19f0161a5fb971798f4ef146de21c3718464228084b6f9b2ae1198c6a71c187b
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to PDF files hosted on various domains. One prominent link, 'https://ttraff.link/wix?keyword=m4+field+manual', appears to be a redirector. The document body also contains this lure text, suggesting an attempt to trick users into clicking through to malicious content. The presence of a link farm and a redirector indicates a campaign focused on driving traffic to potentially harmful sites.

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.link/wix?keyword=m4+field+manual
    • http://diletosor.milagracecreations.com/uploads/1/3/2/8/132814930/07212b61b03f.pdf
    • http://mekilide.solegalore.com/uploads/1/3/2/6/132696147/xemul-dodej-bemafaromasara-jekugiloxav.pdf
    • http://files.sanjapavloskaphotography.com/uploads/1/3/1/3/131379696/guwive.pdf
    • http://javofaw.g12generation.com/uploads/1/3/1/4/131407406/redoxotegapoku-kalojunino-valumesiruguviv.pdf
    • http://forawim.jessicalaurelreese.com/uploads/1/3/0/9/130969483/volixoxubugoxigepi.pdf
    • http://posux.ironstormcorp.com/uploads/1/3/1/6/131606156/nagurimolazipu-fadox-guzobiga.pdf
    • http://files.flyingsamaritanselhongo.org/uploads/1/3/1/4/131437295/gejorerev.pdf
    • https://cdn.shopify.com/s/files/1/0432/7188/0870/files/31905696273.pdf
    • https://cdn.shopify.com/s/files/1/0438/1949/9682/files/civilization_3_strategy_guide.pdf
    • https://cdn.shopify.com/s/files/1/0428/8679/1334/files/dawegivowolufona.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_off000061ad.bin
0e83b67a54684480cf338abc785492c3eb0e5bacc618a663cf136f3325ace939		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61AD 4872 bytes
font_01_sfnt_off00007240.bin
a46cd7f2d757b8b88a61af9746ef1774429842138ff74b2cfcd0604e0c60769d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7240 10240 bytes

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