Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee1ee4cb42c65c1b…

MALICIOUS

PDF

46.4 KB Created: 2020-08-01 13:18:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 33b81023070b8ce5c0ecb7ac11840476 SHA-1: b57500518a2ee6c18271e93abf94f008d853822c SHA-256: ee1ee4cb42c65c1b571660a4ace1fda93383d88958e2ed59b036b438bcbe6162
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. The document also contains a heuristic for a link farm and a visual download button lure. The primary malicious URL identified is ttraff.cc, which redirects to a page related to installing 'enb new vegas'. The presence of numerous external links, many hosted on Shopify, suggests a link farm designed to improve search engine ranking or distribute malicious content.

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=how+to+install+enb+new+vegas
    • http://files.gcndesign.com/uploads/1/3/0/7/130775592/c7511.pdf
    • http://files.onyxtheatretroupe.org/uploads/1/3/1/0/131069879/natubun.pdf
    • http://files.academyofnatureandwildlifearts.org/uploads/1/3/1/4/131406430/e2277.pdf
    • http://files.massapequahistoricalsociety.org/uploads/1/3/1/1/131163559/f3235e2e6e1cb40.pdf
    • http://files.patagoniafallfestival.org/uploads/1/3/0/9/130968933/zonenivasufonal_rolijavafu_sezefasuronu_nimonufoluxup.pdf
    • https://cdn.shopify.com/s/files/1/0433/6815/3253/files/joriw.pdf
    • https://cdn.shopify.com/s/files/1/0431/0378/1015/files/19085176289.pdf
    • https://cdn.shopify.com/s/files/1/0434/6917/6985/files/minaguxeva.pdf
    • https://cdn.shopify.com/s/files/1/0428/0591/9903/files/53125499324.pdf
    • https://cdn.shopify.com/s/files/1/0434/3064/1826/files/95637820123.pdf
    • https://cdn.shopify.com/s/files/1/0434/4987/6630/files/27904495257.pdf
    • https://cdn.shopify.com/s/files/1/0440/4035/6005/files/21993922224.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dogudanivivakow.pdf
    • https://cdn.shopify.com/s/files/1/0434/5744/6038/files/tevawo.pdf
    • https://cdn.shopify.com/s/files/1/0429/1140/0102/files/pepowoziniwisupojo.pdf
    • https://cdn.shopify.com/s/files/1/0431/6214/0826/files/pixokiwedaj.pdf
    • https://cdn.shopify.com/s/files/1/0433/7755/7660/files/tarum.pdf
    • https://cdn.shopify.com/s/files/1/0439/1868/8424/files/30101421355.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_off00007715.bin
19fbb15b9747f0959c4839cc95e7cdca8a2d07717bcfbe6fde3fc9801db72f2b
pdf-font-stream PDF embedded font (sfnt) at offset 0x7715 5008 bytes
font_01_sfnt_off00008850.bin
6e59d41599f94c2674981b04f23fa406c97675d67df2b1b99be8d423ef5ed3b8
pdf-font-stream PDF embedded font (sfnt) at offset 0x8850 10824 bytes