Malicious PDF — malware analysis report

Static analysis result for SHA-256 d47e3944427eb0d5…

MALICIOUS

PDF

141.0 KB Created: 2020-08-19 07:11:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bb9ced97f5c03da2ec9fa24eebba9af6 SHA-1: f6356f247968ae35941a29d81de9fbd492368f7b SHA-256: d47e3944427eb0d5b6665099d816585e38c29530a489a15c2195676e91ddd395
128 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector, indicating an attempt to direct users to harmful content. The document body, though heavily obfuscated, contains a URL that points to a known malicious redirector. The presence of numerous external PDF links, many hosted on Shopify, suggests a link farm designed to improve search engine ranking for malicious content or to host further malicious payloads.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=dungeon+crawl+stone+soup+weapon+guide
    • http://files.planartsnetwork.org/uploads/1/3/0/9/130969220/mulut_mudopemevofiw_wofesi_duvapoxat.pdf
    • http://fumob.baguiosoundsrental.com/uploads/1/3/1/1/131164250/9507418.pdf
    • https://cdn.shopify.com/s/files/1/0433/2562/0374/files/zesozizovo.pdf
    • https://cdn.shopify.com/s/files/1/0440/7685/9544/files/fegipeditituwarijadita.pdf
    • https://cdn.shopify.com/s/files/1/0437/8486/3893/files/mujenebirugunavavekamude.pdf
    • https://cdn.shopify.com/s/files/1/0430/7084/9177/files/percy_shelley_poems.pdf
    • https://cdn.shopify.com/s/files/1/0439/0069/8792/files/pastry_business_plan.pdf
    • https://cdn.shopify.com/s/files/1/0443/1344/4508/files/71741161174.pdf
    • https://cdn.shopify.com/s/files/1/0430/3912/9751/files/boolean_algebra_simplification.pdf
    • https://cdn.shopify.com/s/files/1/0433/5245/7369/files/windows_loader_2._3._0.pdf
    • https://cdn.shopify.com/s/files/1/0439/7708/0990/files/apc_5kva_ups_specifications.pdf
    • https://cdn.shopify.com/s/files/1/0429/9826/8065/files/how_to_find_your_google_id.pdf
    • https://cdn.shopify.com/s/files/1/0432/8164/5736/files/nisosevudesejinixarux.pdf
    • https://cdn.shopify.com/s/files/1/0429/4973/8650/files/69639278972.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_off0001eece.bin
68eb549b4ceb7625aae18f2f5a0e4d71b346d6b7be91bd6f1826bde081cb095f
pdf-font-stream PDF embedded font (sfnt) at offset 0x1EECE 5332 bytes
font_01_sfnt_off0002010f.bin
ba09cb2d909aed10ceec6db8291bde907ea3f4ffce96d1d7843c22e81b545779
pdf-font-stream PDF embedded font (sfnt) at offset 0x2010F 10824 bytes