Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d086f3bee38589b…

MALICIOUS

PDF

53.1 KB Created: 2020-09-18 05:08:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 346edc22c3c0c329fe765784e1d5bab6 SHA-1: c0bfd85abac8bfa679b7f4627426ee0565c466f4 SHA-256: 9d086f3bee38589be7e63b7174e983b450967dccf30f1bf44fb7618504a9a9fb
128 Risk Score

Malware Insights

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

The PDF file contains a link farm and a malicious redirector, indicating an attempt to lure users to malicious content. The presence of a 'download' button lure reinforces this. The primary malicious URL identified is ttraff.link, which redirects to content related to 'mini militia mod apk download'. The file also contains numerous links to Shopify-hosted PDFs, likely part of an SEO spam campaign.

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.link/wix?keyword=mini+militia+mod+apk+download
    • https://cdn.shopify.com/s/files/1/0427/4136/6951/files/sunubujuzetibaweguwuku.pdf
    • https://cdn.shopify.com/s/files/1/0435/5509/4677/files/8952875783.pdf
    • https://cdn.shopify.com/s/files/1/0437/2843/7409/files/periodic_table_worksheet_group_4_period_5.pdf
    • https://cdn.shopify.com/s/files/1/0440/7368/1061/files/lima_barreto_livros.pdf
    • https://cdn.shopify.com/s/files/1/0431/6843/2288/files/wetewanebon.pdf
    • https://59a6dd94-450a-4cb4-9aff-60c084a8ea91.filesusr.com/ugd/277b62_15e3f546b22249aba8657fd55fda87c8.pdf?index=true
    • https://f07e8868-ff31-4afe-ad4b-055bcc4b3882.filesusr.com/ugd/1a94e8_3dab4dc389d1494093e5954cd773ed5b.pdf?index=true
    • https://d2cb5501-0ce2-4ef3-8d45-68add76c8701.filesusr.com/ugd/36f25b_a6de39ce91f44ec190f8e80d14fd1362.pdf?index=true
    • https://fcf47d5a-652e-47a4-a475-9ea06da2b5d5.filesusr.com/ugd/d6af85_c438150fe9d24b4d8e5dfa673572f67c.pdf?index=true
    • https://aac04e38-45e3-408e-8a6c-d2de28ff2a4a.filesusr.com/ugd/a6e5e9_a57d3f9d139547be9a2b7785e25dea64.pdf?index=true
    • https://40429b4b-d855-4b32-aa6b-cea0adbafd6d.filesusr.com/ugd/5bb01c_536037b408f84525b7b23cb12ad997e0.pdf?index=true
    • https://cd7de183-b05d-4364-a840-23906bca5e78.filesusr.com/ugd/771ea4_08732e901bc3473f9cd031ea89f92ed4.pdf?index=true
    • https://6e9b181a-8f22-456b-812f-4c89879c2d08.filesusr.com/ugd/4e977a_96ae28e409524f9e8479e8eac2e5e8bc.pdf?index=true
    • 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f51.bin
11bd824f9f80818599bcea7ea8173045779b6da3a132a50f7682a615a31cd545		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F51 4664 bytes
font_01_sfnt_off00007f17.bin
4a2bfc13b4e1fe450c83f898f179e5c23c26b7402c70cca8ccd98f08610730b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F17 10640 bytes
font_02_sfnt_off0000a3b0.bin
573a66b15e623761db71904576a76ca4f3ceadb845d72a25bfbc064a2807f0b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA3B0 16136 bytes
font_03_sfnt_off0000b8b3.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB8B3 4324 bytes

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