Malicious PDF — malware analysis report

Static analysis result for SHA-256 928087d9ccd732b8…

MALICIOUS

PDF

46.3 KB Created: 2020-08-23 07:48:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5a3f3dea9d5e6c2e40508cb5de0e93dd SHA-1: 851e13b2ba6b64ec8c7f87883d87390ac1cb56d6 SHA-256: 928087d9ccd732b8ab4673943c70fab08a24b40335d148ed6938ea2edee0265b
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links redirects to a malicious domain, ttraff.com, which is likely used for further redirection or to host malicious content. The document body, though heavily obfuscated, contains the same malicious URL. This indicates a social engineering attempt to direct users to harmful infrastructure.

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=chipmunks+christmas+songs+free
    • http://nuxuni.lambersfisher.com/uploads/1/3/0/8/130813453/pajurireduvobed.pdf
    • http://fofiwo.mymodernsolutions.ca/uploads/1/3/1/4/131438500/1206732.pdf
    • https://cdn.shopify.com/s/files/1/0430/5892/1621/files/newifizutuxutotopozedesu.pdf
    • https://cdn.shopify.com/s/files/1/0431/8419/3697/files/himnario_adventista_del_septimo_dia.pdf
    • https://cdn.shopify.com/s/files/1/0431/4857/4886/files/angular_8_bootstrap_template_free.pdf
    • https://cdn.shopify.com/s/files/1/0434/0154/3831/files/xaranamitoruxonoxove.pdf
    • https://cdn.shopify.com/s/files/1/0435/3431/9776/files/58544519167.pdf
    • https://cdn.shopify.com/s/files/1/0430/0213/4681/files/hanuman_chalisa_bengali_language.pdf
    • https://cdn.shopify.com/s/files/1/0432/4360/2080/files/bibliography_format_for_elementary_students.pdf
    • https://cdn.shopify.com/s/files/1/0440/7413/9800/files/animation_app_free_for_pc.pdf
    • https://cdn.shopify.com/s/files/1/0439/1780/3675/files/bbc_compacta_class_9_english.pdf
    • https://cdn.shopify.com/s/files/1/0428/7699/3702/files/editable_chinese_wedding_invitation_templates_free.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_off000069fc.bin
f45e70eedd9baf9ec1275f81b7dbd04f253ca1e569c54ed79fc00bc18d66480b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69FC 5364 bytes
font_01_sfnt_off00007c13.bin
6b69763feb2cf99e676e796cf791ffc3c33dc2f052ab515b05f95453f3e16f1f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C13 10072 bytes
font_02_sfnt_off00009e7a.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9E7A 4324 bytes

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