Malicious PDF — malware analysis report

Static analysis result for SHA-256 510f88f990b030c6…

MALICIOUS

PDF

40.6 KB Created: 2020-08-17 00:12:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2b5208a5907bc32b2fbe6457df749945 SHA-1: 8fc3f8fbeabf14f4f937c18657c41818b7e36471 SHA-256: 510f88f990b030c6bf00bddb29c958433c6439e9bb8f732b17ea756361790dab
130 Risk Score

Malware Insights

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

The PDF document contains a lure for a modified Adobe Photoshop application, presenting a call-to-action to download it. It embeds a large number of links, including one that redirects to a known malicious URL (ttraff.com). This suggests the document is designed to trick users into downloading potentially harmful software by leveraging a link farm and a malicious redirector.

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.com/pify?keyword=adobe+photoshop+fix+mod+apk
    • http://files.zelementclub.com/uploads/1/3/0/9/130969322/17437.pdf
    • https://cdn.shopify.com/s/files/1/0431/0741/8273/files/lenurozapuweseti.pdf
    • https://cdn.shopify.com/s/files/1/0431/5476/8021/files/kujovuzepixidezowovudub.pdf
    • https://cdn.shopify.com/s/files/1/0430/0328/1571/files/18030687520.pdf
    • https://cdn.shopify.com/s/files/1/0428/6159/2742/files/kazonodiku.pdf
    • https://cdn.shopify.com/s/files/1/0431/6200/9755/files/business_intelligence_job_description.pdf
    • https://cdn.shopify.com/s/files/1/0430/9336/0801/files/xexedomuzowitenopom.pdf
    • https://cdn.shopify.com/s/files/1/0427/9903/8631/files/fimug.pdf
    • https://cdn.shopify.com/s/files/1/0438/6462/1211/files/convert_google_spreadsheet_to.pdf
    • https://cdn.shopify.com/s/files/1/0431/6646/6216/files/brushless_alternator_construction.pdf
    • https://cdn.shopify.com/s/files/1/0430/7451/9194/files/heart_block_types.pdf
    • https://cdn.shopify.com/s/files/1/0430/6881/7569/files/38260913872.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_off00005f73.bin
eb5ba55afce67c4466218a6fa8bb296fe3d8869ed51b32808605c16e02c4e8d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F73 5416 bytes
font_01_sfnt_off000071c2.bin
24dc65b9d53b0727f245c13e207ad3644f4ee354591fb531164625a05b7ed769		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71C2 10552 bytes

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