Malicious PDF — malware analysis report

Static analysis result for SHA-256 50fa4ef8924674c2…

MALICIOUS

PDF

54.5 KB Created: 2020-08-02 19:01:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4f584d02a0085ee6c0e04bb17ceb361e SHA-1: 2baaf56341e292be20fe0f0aa4b672de7e88f273 SHA-256: 50fa4ef8924674c28d8fdebe1fb610f2503c179f493d6a665fb60ebf357d767d
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with the primary redirector URL being https://ttraff.com/pify?keyword=character+map+mac. This indicates a likely attempt to lure users to malicious sites. The presence of numerous other PDF links hosted on cdn.shopify.com and other domains suggests a link farm or SEO poisoning tactic to distribute the malicious content. No scripts were extracted, but the PDF structure and link farm are strong indicators of a malicious delivery mechanism.

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.com/pify?keyword=character+map+mac
    • http://files.ajting.com/uploads/1/3/1/4/131406785/tenagubumojex-nixalegeni.pdf
    • http://files.themovingconcierge.com.au/uploads/1/3/1/6/131636845/19fac60864ceff.pdf
    • http://files.gigilynfineart.com/uploads/1/3/2/6/132681796/gimitukow_gukojawuf_wefatejuvi.pdf
    • http://files.rivolirallies.com/uploads/1/3/0/8/130874360/davozamiw_dopukadi_wasukujagi.pdf
    • http://files.launasorensen.com/uploads/1/3/1/1/131163782/moxotikosa.pdf
    • https://cdn.shopify.com/s/files/1/0430/3906/4225/files/13577784952.pdf
    • https://cdn.shopify.com/s/files/1/0428/6382/0959/files/99136946552.pdf
    • https://cdn.shopify.com/s/files/1/0431/6640/0673/files/kedidegubufanuzuli.pdf
    • https://cdn.shopify.com/s/files/1/0431/5221/2130/files/getemexod.pdf
    • https://cdn.shopify.com/s/files/1/0430/8808/5145/files/13081239411.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/19463184481.pdf
    • https://cdn.shopify.com/s/files/1/0434/3506/5505/files/fannie_mae_condo_questionnaire.pdf
    • https://cdn.shopify.com/s/files/1/0430/8592/2466/files/92976578398.pdf
    • https://cdn.shopify.com/s/files/1/0437/1510/0822/files/76065040822.pdf
    • https://cdn.shopify.com/s/files/1/0435/4962/2431/files/72949845832.pdf
    • https://cdn.shopify.com/s/files/1/0433/3161/6923/files/jokefamumekafifo.pdf
    • https://cdn.shopify.com/s/files/1/0427/4126/8647/files/94423771896.pdf
    • https://cdn.shopify.com/s/files/1/0429/7526/4919/files/59792492685.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006316.bin
de6aacb5a55f55b98bf3ae384f96a51051c900e5a59c241f5198d539ce1a3af5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6316 6168 bytes
font_01_sfnt_off00007285.bin
d109512e750d424d11907bb63e6884db300b6c50488e9c66c484c01be8cdea87		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7285 2960 bytes
font_02_sfnt_off00007d12.bin
bc7c64c94fa3d5dce1e82cf48d8fc9eccba14b6682cb98057d29df88ab1c8cab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D12 4868 bytes
font_03_sfnt_off00008d6c.bin
17e2496b8fe028ed3eab4e4e81b9ed8b1d6616a2cc9672224dace8784678feb8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D6C 11156 bytes
font_04_sfnt_off0000b348.bin
2f9d58b17a8da650b8eb3896a5d041b40d9401552b71293492ae2a9792f8fbeb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB348 17244 bytes

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