Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b25bd69ae8ede8d…

MALICIOUS

PDF

64.6 KB Created: 2020-08-28 06:39:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e4fe3885de1a4fa20c7aef0bd994828b SHA-1: c4da1dfbdfef7853b088e09fd12b8e095a3ba387 SHA-256: 2b25bd69ae8ede8ded253f064eab2b616712fe8a33681aad26b99cb6546c6f42
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell T1204.001 Malicious Link

The PDF contains a high number of embedded URLs, many pointing to Shopify domains, suggesting a link farm or SEO manipulation tactic. One critical heuristic indicates a malicious redirector link to 'ttraff.me', which is likely the primary malicious payload delivery mechanism. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, limiting the analysis of direct execution behavior.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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/pify?keyword=the+pleiadian+workbook
    • http://files.jasonbraun.com/uploads/1/3/2/7/132740278/bitavibagitosite.pdf
    • http://files.americuspregnancy.org/uploads/1/3/0/7/130738740/miwonul_ritudara.pdf
    • http://files.eastpointhorspice.com/uploads/1/3/1/4/131438477/e9d749cc.pdf
    • http://files.foxwoodequestriancenter.com/uploads/1/3/1/3/131380728/4bf24e4c1.pdf
    • https://cdn.shopify.com/s/files/1/0433/3476/2664/files/71222040682.pdf
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/rupegoz.pdf
    • https://cdn.shopify.com/s/files/1/0440/4323/9589/files/busqueda_de_informacion_cientifica_slideshare.pdf
    • https://cdn.shopify.com/s/files/1/0437/3184/5271/files/xbox_360_smartglass.pdf
    • https://cdn.shopify.com/s/files/1/0431/8684/7903/files/54700503215.pdf
    • https://cdn.shopify.com/s/files/1/0437/6041/8970/files/rikawokuv.pdf
    • https://cdn.shopify.com/s/files/1/0429/9502/4033/files/jadubiroz.pdf
    • https://cdn.shopify.com/s/files/1/0432/8790/4411/files/42529044067.pdf
    • https://cdn.shopify.com/s/files/1/0434/9673/4880/files/vowik.pdf
    • https://cdn.shopify.com/s/files/1/0434/0128/1701/files/tedulejufe.pdf
    • https://cdn.shopify.com/s/files/1/0434/6681/7689/files/79367546809.pdf
    • https://cdn.shopify.com/s/files/1/0449/2951/5687/files/54795353895.pdf
    • https://cdn.shopify.com/s/files/1/0429/2381/9164/files/ms_aphasia_screening_test.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/
    • https://cdn.shopify.com/s/files/1/0433/3476/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b44a.bin
22f20810a7b675e4c879e30a276cefb6c344ee3382cfe48244391d119f1d2c04		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB44A 4824 bytes
font_01_sfnt_off0000c49b.bin
a4f8bd5ecd0ebf76233271b0948cb485d3f0f201534885e99dd7c53542bacbbe		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC49B 10120 bytes
font_02_sfnt_off0000e734.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE734 4324 bytes

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