Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6f64cc0584727b3…

MALICIOUS

PDF

54.1 KB Created: 2020-08-19 15:04:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4259902027588fd15fbaca693bdea477 SHA-1: ae9ed01224942f0af1a30ae4677b7be2c071bcee SHA-256: a6f64cc0584727b31ea37499c51a10ad2621c446b136eaa5caf01b15b4223a2b
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic match for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. It also exhibits PDF_SEO_LINK_FARM behavior, embedding numerous links, many of which point to Shopify. The primary malicious URL identified is https://ttraff.com/pify?keyword=what+function+does+the+appendix+perform. The document body is heavily obfuscated but contains this URL, suggesting the intent is to redirect users to a malicious site for phishing or malware delivery.

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=what+function+does+the+appendix+perform
    • http://files.frederikabroeder.com/uploads/1/3/0/8/130873820/547b8ca5.pdf
    • http://files.cupelocal748.com/uploads/1/3/1/3/131380107/nalisulas_radojukiv_foretiwobobep_jexaxawitunu.pdf
    • https://cdn.shopify.com/s/files/1/0438/4741/8016/files/acta_constitutiva_de_una_empresa_mexicana_formato.pdf
    • https://cdn.shopify.com/s/files/1/0431/6971/0242/files/jilepuxuwosopopaxaxaxa.pdf
    • https://cdn.shopify.com/s/files/1/0432/8158/0188/files/bombay_dyeing_bed_sheets_cost.pdf
    • https://cdn.shopify.com/s/files/1/0434/2353/1158/files/lightroom_shortcuts_download.pdf
    • https://cdn.shopify.com/s/files/1/0439/0807/1576/files/vagezawotebipos.pdf
    • https://cdn.shopify.com/s/files/1/0444/3268/7271/files/luzamuwiwilu.pdf
    • https://cdn.shopify.com/s/files/1/0431/3900/6632/files/ruronel.pdf
    • https://cdn.shopify.com/s/files/1/0432/2187/6900/files/the_dilbert_principle_scott_adams.pdf
    • https://cdn.shopify.com/s/files/1/0428/4016/2467/files/80544542707.pdf
    • https://cdn.shopify.com/s/files/1/0437/8047/2984/files/sojusinebajudi.pdf
    • https://cdn.shopify.com/s/files/1/0438/2903/5158/files/75159718171.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000086f7.bin
63c54e17ce2ddfcf921fb6ef83bd04e1f911f17cbbb0bda247f544444a7be100		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86F7 5324 bytes
font_01_sfnt_off000098ee.bin
480ee4d91eb9167566ff4f732e6f071d4dc618891d265bd3241b7705078c24ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x98EE 10808 bytes
font_02_sfnt_off0000bd08.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBD08 4324 bytes

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