Malicious PDF — malware analysis report

Static analysis result for SHA-256 4fbfb084a2f45c8f…

MALICIOUS

PDF

414.9 KB Created: 2020-08-01 15:19:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dec40e1c5d4cc06933ca15aba6e92d23 SHA-1: 857994480fd82668eb9784993494de29ff028eda SHA-256: 4fbfb084a2f45c8fe761e8c84777fc246564bc7c5a722d50dff36d30745a3a5a
108 Risk Score

Malware Insights

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

The PDF document contains heuristics indicating it is an advance-fee scam lure, specifically mentioning parcel delivery requirements. It also contains a critical heuristic firing for a malicious redirector link, which is the primary indicator of malicious intent. The document body, though heavily obfuscated, contains the malicious URL. 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.
  • 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.
  • 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.ru/pify?keyword=657+220-+1619
    • http://files.nostalgeekretrogames.ca/uploads/1/3/1/6/131606965/1643758.pdf
    • http://files.dyanetwork.org/uploads/1/3/1/3/131382274/73e61.pdf
    • http://files.realmofricketts.com/uploads/1/3/1/4/131437241/vojotoreruje.pdf
    • https://cdn.shopify.com/s/files/1/0428/0975/3767/files/riduxugisovukinazuzim.pdf
    • https://cdn.shopify.com/s/files/1/0427/9074/8316/files/zonuvonabewed.pdf
    • https://cdn.shopify.com/s/files/1/0441/0392/5912/files/jabaleledipapoleden.pdf
    • https://cdn.shopify.com/s/files/1/0431/6826/8456/files/61786037147.pdf
    • https://cdn.shopify.com/s/files/1/0432/8715/0752/files/busawavaxoririgubon.pdf
    • https://cdn.shopify.com/s/files/1/0427/8065/5775/files/15325045441.pdf
    • https://cdn.shopify.com/s/files/1/0433/5144/1560/files/55320607517.pdf
    • https://cdn.shopify.com/s/files/1/0434/5397/2633/files/68916827732.pdf
    • https://cdn.shopify.com/s/files/1/0434/4909/0200/files/space_engineer_servers.pdf
    • https://cdn.shopify.com/s/files/1/0430/7596/0985/files/guzogixopuzaromolew.pdf
    • https://cdn.shopify.com/s/files/1/0431/3353/4357/files/51283924443.pdf
    • https://cdn.shopify.com/s/files/1/0428/5458/0391/files/ginokupowaj.pdf
    • https://cdn.shopify.com/s/files/1/0432/0142/9662/files/284940265.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_off00063225.bin
a5b9881e62692b74fa657ab61644d229627b2f154509dd42d58126660c7c2329		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63225 4940 bytes
font_01_sfnt_off00064327.bin
2f3d2e72e6b19d137a052c4b1a6626cbbfd7403a3576769922c03b1c21e0cb89		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64327 12764 bytes

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