Malicious PDF — malware analysis report

Static analysis result for SHA-256 d96948b9d218403d…

MALICIOUS

PDF

268.6 KB Created: 2020-08-14 12:33:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e11c0cae0c8c4724c3e39ba0697132e1 SHA-1: 5e14ed0c486c34e3be246d606deccb031eb12f53 SHA-256: d96948b9d218403deb8c94217b1e93e9f56a2117a4f15a8f460853065a29d0c3
142 Risk Score

Malware Insights

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

The PDF file contains a malicious redirector link disguised as content related to 'Crystal reports inner join vs outer join'. The heuristic firings indicate that the document uses an advance-fee scam lure and prompts the user to install a browser extension or update, which are common social engineering tactics. The primary malicious IOC is the redirector URL, which likely leads to a further stage of the attack.

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.
  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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=crystal+reports+inner+join+vs+outer+join
    • http://files.cdhc.org/uploads/1/3/0/7/130738876/vesadozisejo.pdf
    • http://files.kristyrackham.com/uploads/1/3/0/9/130969334/3305161.pdf
    • http://files.organicpastels.com/uploads/1/3/1/4/131453031/natigitilijuf.pdf
    • https://cdn.shopify.com/s/files/1/0436/9186/8313/files/54576387859.pdf
    • https://cdn.shopify.com/s/files/1/0437/4121/6929/files/bofepe.pdf
    • https://cdn.shopify.com/s/files/1/0428/9242/7430/files/1667678778.pdf
    • https://cdn.shopify.com/s/files/1/0433/5170/3706/files/wanting_memories_satb.pdf
    • https://cdn.shopify.com/s/files/1/0435/5732/2903/files/serway_vuille_college_physics_9th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0440/4002/8325/files/marie_kondo_folding_fitted_sheets.pdf
    • https://cdn.shopify.com/s/files/1/0431/7013/6230/files/apocrypha_books.pdf
    • https://cdn.shopify.com/s/files/1/0434/3159/2088/files/53946029863.pdf
    • https://cdn.shopify.com/s/files/1/0434/3136/2725/files/dazoda.pdf
    • https://cdn.shopify.com/s/files/1/0429/8211/3433/files/nujedofotigotenaron.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_off0003e7c7.bin
cc9df64b260e5149921dc7cfbf0bddaa6003e07a647ef3641fd93f7c797740db		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3E7C7 4956 bytes
font_01_sfnt_off0003f8c1.bin
ca82f2f6fc15258276982113a666515ea3c1ee3a65e2a5735c282d972c8adcff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3F8C1 13492 bytes

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