Malicious PDF — malware analysis report

Static analysis result for SHA-256 92b02b0f3f265642…

MALICIOUS

PDF

45.5 KB Created: 2020-07-29 07:13:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: de6e50c7f7ce8fe06f59ae060b8f8570 SHA-1: db9f2dbfd141980122fe6c19ba6fe01ef47b77c5 SHA-256: 92b02b0f3f2656422ff70c5adc1d1706f85335cc0df0fb05db22af5a82dbd0ba
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a redirector link to ttraff.ru. This suggests the document is designed to lead users to malicious sites. The presence of a 'download button' heuristic further supports a lure-based attack pattern. No scripts were extracted, limiting the analysis of direct payload execution.

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.ru/pify?keyword=tn+team+evaluation+lesson+plan+template
    • http://files.janedemiere.com/uploads/1/3/0/9/130969935/galopuximutut_kuravonew.pdf
    • http://files.vietnamesestudies.org/uploads/1/3/1/6/131606874/lexipodikudeva.pdf
    • http://files.columbiayouthsoccerclub.com/uploads/1/3/0/8/130874361/170ccd052ee314.pdf
    • http://files.gogreenleafmanagement.com/uploads/1/3/0/9/130969403/riwirufa_budadina_nasomega.pdf
    • http://files.greentreeassociation.com/uploads/1/3/0/9/130969433/8085851.pdf
    • http://files.columbiayouthsoccerclub.com/uploads
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65431134640.pdf
    • https://cdn.shopify.com/s/files/1/0434/4417/5013/files/fedopimomot.pdf
    • https://cdn.shopify.com/s/files/1/0428/8879/0179/files/silunuvemex.pdf
    • https://cdn.shopify.com/s/files/1/0431/0571/4338/files/sadirogijovijekesipapad.pdf
    • https://cdn.shopify.com/s/files/1/0437/7467/3050/files/1204212585.pdf
    • https://cdn.shopify.com/s/files/1/0428/3580/4319/files/lebitanojuxebibedagovok.pdf
    • https://cdn.shopify.com/s/files/1/0430/7343/7847/files/migozilanunogiw.pdf
    • https://cdn.shopify.com/s/files/1/0428/4959/9651/files/62193386013.pdf
    • https://cdn.shopify.com/s/files/1/0427/9838/3260/files/73333242954.pdf
    • https://cdn.shopify.com/s/files/1/0433/6464/7077/files/kukubogojazomasutijup.pdf
    • https://cdn.shopify.com/s/files/1/0427/8986/3580/files/reraxuwoma.pdf
    • https://cdn.shopify.com/s/files/1/0430/8775/7461/files/53360404782.pdf
    • https://cdn.shopify.com/s/files/1/0429/3279/7607/files/fepinowumojomus.pdf
    • https://cdn.shopify.com/s/files/1/0437/2617/6407/files/68444665206.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/71482320097.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_off00007571.bin
7cede426dabd533e78463a5480db02096f66f70e121418d1deea5be46d20b092		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7571 4760 bytes
font_01_sfnt_off0000858b.bin
ba8c15f7f5c28b6e97155434df80fa1f1bb41e4c831006ced05d5f17aa4ee2c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x858B 10296 bytes

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