Malicious PDF — malware analysis report

Static analysis result for SHA-256 b01282313bf3e7be…

MALICIOUS

PDF

49.8 KB Created: 2020-09-01 21:24:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 30a0641c5f698c0e767c06518c180aea SHA-1: f36b3b584a881d760c8b29e191d5dc94e3ef5a7a SHA-256: b01282313bf3e7be5769ecd8590fbcfb72ad43e3c4f730dd2640c25d5dfb2aae
130 Risk Score

Malware Insights

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

The PDF file contains a mass external link farm, with one critical heuristic identifying a link to known malicious redirector infrastructure at 'https://ttraff.com/wix?keyword=saudi+arabia+images+hd+free'. The document body also contains invoice-related language, suggesting a lure to trick users into clicking the malicious link. No scripts were extracted from this sample.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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/wix?keyword=saudi+arabia+images+hd+free
    • https://cdn.shopify.com/s/files/1/0434/1324/2005/files/crohn_s_guidelines_2018.pdf
    • https://cdn.shopify.com/s/files/1/0461/9947/2277/files/30912427083.pdf
    • https://cdn.shopify.com/s/files/1/0431/4952/5156/files/65360150881.pdf
    • https://cdn.shopify.com/s/files/1/0433/4914/7816/files/kagijigukunogemubamesawu.pdf
    • https://static.usrfiles.com/ugd/b8c837_ba25675338d446c28dc32b150b01e924.pdf
    • https://static.usrfiles.com/ugd/5ad03d_6e93cbd3726943068146db300dee1f78.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/67768868558.pdf
    • https://cdn.shopify.com/s/files/1/0440/7230/4805/files/aditya_hrudayam_stotram_in_telugu_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/3123/1637/files/pse_nova_bow.pdf
    • https://cdn.shopify.com/s/files/1/0431/0610/7552/files/84521705107.pdf
    • https://cdn.shopify.com/s/files/1/0436/2023/7475/files/akc_foreign_registration_form.pdf
    • https://static.usrfiles.com/ugd/4bdc6d_74f68bbcfbf0493dbd715906daee3098.pdf
    • https://static.usrfiles.com/ugd/7d1dc9_a131738b8b6741909d8d95a0fe21693c.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_off0000821b.bin
d1d9da7a29f9011d0b27a1b2d957077409336463d719aeb261a7fa994f878dc6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x821B 5532 bytes
font_01_sfnt_off000094bc.bin
c7a67e2f1cc1e04796e24d465906be92039fafd474a8331d72f1d386f1ed9524		 pdf-font-stream PDF embedded font (sfnt) at offset 0x94BC 11036 bytes

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