Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d2254b3d7af19f4…

MALICIOUS

PDF

47.8 KB Created: 2020-08-07 21:22:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 87bd4c655e592e105c59465b95c3682a SHA-1: bb84db74227ee7bf272b73a4a5ffe44156a0ef64 SHA-256: 4d2254b3d7af19f4fe04ff8a462a18d339014e357f831c2834d2e8fb7cae6f18
120 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector URL, indicating a phishing or malware distribution attempt. The primary malicious URL is https://ttraff.cc/pify?keyword=ubqari+magazine+december+2020+pdf, which likely leads to further malicious content. The document body itself is heavily obfuscated but contains references to the malicious URL.

Heuristics 3

  • 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.
  • 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=ubqari+magazine+december+2020+pdf
    • http://files.cefmiwaynecounty.com/uploads/1/3/0/7/130776142/ludebolub.pdf
    • http://files.jazzpaws.co/uploads/1/3/1/6/131637562/8395380.pdf
    • http://dunawagit.rareblogger.com/uploads/1/3/1/4/131406893/mugovip.pdf
    • https://cdn.shopify.com/s/files/1/0437/4485/4165/files/32749221501.pdf
    • https://cdn.shopify.com/s/files/1/0429/0894/2499/files/68637051074.pdf
    • https://cdn.shopify.com/s/files/1/0431/0158/5570/files/15769275892.pdf
    • https://cdn.shopify.com/s/files/1/0439/4975/2478/files/zudavaman.pdf
    • https://cdn.shopify.com/s/files/1/0433/6159/9656/files/17762088038.pdf
    • https://cdn.shopify.com/s/files/1/0432/6939/0500/files/fokewo.pdf
    • https://cdn.shopify.com/s/files/1/0440/4156/8421/files/zopiledawafesikunu.pdf
    • https://cdn.shopify.com/s/files/1/0433/4832/8603/files/loworafijafodojuxexa.pdf
    • https://cdn.shopify.com/s/files/1/0430/5967/5293/files/23452975924.pdf
    • https://cdn.shopify.com/s/files/1/0431/8724/1119/files/sobodoxuruweb.pdf
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/suvogetexidabesarazulifu.pdf
    • https://cdn.shopify.com/s/files/1/0428/5857/8086/files/muwakogepugesomugewudi.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004836.bin
189a21eade6951fb9631f92cb04c136e3eabbae59def781d15a8cbb72bc2a77e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4836 5444 bytes
font_01_sfnt_off00005a98.bin
5fd53e2058c4f5d98b70161d670f1e42036942552fef68ac845a5e47e2d7f715		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A98 2604 bytes
font_02_sfnt_off000065b9.bin
097b5b1c030896f3075ba870878ac8ee2c5874bd881009dc849b9a2a0e151774		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65B9 9864 bytes
font_03_sfnt_off000087b5.bin
01319aa4ded363944cd41e84055cf5699ad285532c28174002c851fb664427dc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87B5 18104 bytes
font_04_sfnt_off0000a319.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA319 4324 bytes

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