Malicious PDF — malware analysis report

Static analysis result for SHA-256 997b107086476c3d…

MALICIOUS

PDF

52.1 KB Created: 2020-08-06 15:22:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7c1896c474c82914ff42f08d21993afc SHA-1: 8df5b1c6ce83f762840f7a7829edbb978be1f2fd SHA-256: 997b107086476c3da9e03fd09fdc9f743d67e6f65dd8ab2e3347a2cd6486c15a
160 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text suggesting a lure related to 'social impact assessment pdf' and includes the malicious URL. This indicates an attempt to trick the user into visiting a malicious site, likely for phishing or malware distribution, consistent with an advance-fee scam.

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.
  • 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.
  • 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.cc/pify?keyword=social+impact+assessment+pdf
    • http://rudele.blazintips.com/uploads/1/3/1/3/131380005/turekaxotaziw.pdf
    • http://files.voices4earth.org/uploads/1/3/1/1/131164273/1037397.pdf
    • http://files.spectrumoilfieldsupplies.com/uploads/1/3/1/8/131856815/a462c8a2ba3b3eb.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ginowojero.pdf
    • https://cdn.shopify.com/s/files/1/0431/5326/0700/files/xovesejisu.pdf
    • https://cdn.shopify.com/s/files/1/0433/8001/5262/files/wosimanitela.pdf
    • https://cdn.shopify.com/s/files/1/0428/9586/8067/files/23216728736.pdf
    • https://cdn.shopify.com/s/files/1/0429/3469/8147/files/zagoguv.pdf
    • https://cdn.shopify.com/s/files/1/0440/6624/2710/files/ramemuwokusebumukivizomur.pdf
    • https://cdn.shopify.com/s/files/1/0435/6807/0815/files/calligraphy_lessons_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pufabupenidobuxix.pdf
    • https://cdn.shopify.com/s/files/1/0440/5841/1158/files/nibaserurolubadin.pdf
    • https://cdn.shopify.com/s/files/1/0434/2700/4572/files/kameduvij.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_off00008d8f.bin
17b64fcb7035dde420c11c50cc4051facbcd7f62dc61a740aa40de56a7ae9e8f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D8F 5308 bytes
font_01_sfnt_off00009f90.bin
98b99ee1b430d19f9325922876a74d3e13394c5eefb83fd1546bbc484044d59e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9F90 10788 bytes

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