Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0d10280377c23b2…

MALICIOUS

PDF

44.2 KB Created: 2020-09-18 13:21:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 109f2ddcba87a2600dc56a3c372492bf SHA-1: 498b6f43361bf91e9551b17e539bde9165acd740 SHA-256: c0d10280377c23b26e68283a0a792a4934be224146f451cf829e50c766369596
168 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 lead the user to malicious content. The document body, though malformed, contains a URL that matches the malicious redirector heuristic. The presence of numerous external links suggests a SEO poisoning or link farm tactic to distribute malicious content.

Heuristics 5

  • 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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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.me/wix?keyword=casio+oceanus+ocw-s100-1ajf+dimensions
    • http://files.meldesignworks.com/uploads/1/3/1/4/131437330/6472602.pdf
    • http://files.txstudentcivics.org/uploads/1/3/2/3/132302764/ae7fe4ccf7.pdf
    • http://sasufo.helpurchild.net/uploads/1/3/1/6/131606271/gufoxufu_romugiv_tizitazejodup_fokoxaso.pdf
    • http://nikoso.amberdietz.com/uploads/1/3/1/4/131409236/degorisujar.pdf
    • https://3d095396-bba6-4de7-bd6b-fcf898508cb0.filesusr.com/ugd/7cefa9_e91b2a51bc1b4f66be9299c50db71c37.pdf?index=true
    • https://37728e2d-3884-4439-bdf5-b6787566ee93.filesusr.com/ugd/7a359d_4ff96be9c34843f08b5a257eb7452a44.pdf?index=true
    • https://fc6b6ed1-8958-40ee-931e-21f501b87d21.filesusr.com/ugd/0c8cc8_4d1c49bc73b247af88c54aa47496b01a.pdf?index=true
    • https://f15886bf-d04a-4dbd-b0e5-de2c804cf1ff.filesusr.com/ugd/70094d_820b61c32e1447638e150d76219f430d.pdf?index=true
    • https://5ea75b48-4b44-45b5-bc73-52b49858b561.filesusr.com/ugd/cece23_7ffe4e7e97214954b3a3dcebdbae072d.pdf?index=true
    • https://2811a654-a801-4827-90b7-6053e89180f9.filesusr.com/ugd/1b0481_629e257db35e457bb05d7d7f180ddf7f.pdf?index=true
    • https://b38d9092-a3fd-4ce0-80e2-33dade106e7d.filesusr.com/ugd/8a5fcf_f90d123a842f4874a9d9af928a042d67.pdf?index=true
    • https://d63c63ce-a144-4e2e-862f-01efac8cd57d.filesusr.com/ugd/564d2e_2ff2803d98224906be4b04be8cf19ee9.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0430/8906/8185/files/80053133996.pdf
    • https://cdn.shopify.com/s/files/1/0431/5037/7120/files/74100914644.pdf
    • https://cdn.shopify.com/s/files/1/0439/2737/1931/files/belmar_beach_report.pdf
    • https://cdn.shopify.com/s/files/1/0433/4357/7246/files/alcohol_y_gastritis.pdf
    • https://cdn.shopify.com/s/files/1/0430/0229/8521/files/99393173326.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_off00006cc5.bin
9f8860258464bb0e5ef3415c04c11dbf2341e75bd651ff8ff6484c05049f29dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CC5 5340 bytes
font_01_sfnt_off00007efc.bin
074d9ff688aea47d36d0c2db671e9bb3b2cc19f10c6266f3aa0025ea4e05653d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EFC 10748 bytes

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