Malicious PDF — malware analysis report

Static analysis result for SHA-256 eac30b0d9e29d7ce…

MALICIOUS

PDF

62.8 KB Created: 2020-08-25 11:21:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fecaea3f9b508166b6d3cc77812dbf32 SHA-1: 561c0d9c63a749e2c6ff4ee61ab72e04693b584e SHA-256: eac30b0d9e29d7ceb3d43ca2e24383b204cf8b85bd374e5bfb3c4caf7769a6cf
120 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to a redirector service (ttraff.ru) that is known to host malicious content. The document body itself is heavily obfuscated but contains references to '2016 movies marathi' and the URL that triggered the redirector heuristic. The presence of numerous links, including a link farm, suggests an attempt to drive traffic to malicious sites, potentially for phishing or malware distribution.

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.ru/pify?keyword=2016+movies++marathi
    • http://files.takeabitecc.org/uploads/1/3/0/7/130739444/dd65c.pdf
    • http://files.thebirdiebox.com/uploads/1/3/0/9/130969689/nemoseju_rovozifunasul_numuraxoku.pdf
    • http://files.psychiatricnursepratitionersofwarwick.com/uploads/1/3/0/7/130740017/ginejilujigi.pdf
    • https://cdn.shopify.com/s/files/1/0429/1778/9862/files/epidural_analgesia_in_labour.pdf
    • https://cdn.shopify.com/s/files/1/0431/8828/9694/files/71170397287.pdf
    • https://cdn.shopify.com/s/files/1/0430/8602/0761/files/97510316161.pdf
    • https://cdn.shopify.com/s/files/1/0431/3864/6178/files/jadarelarur.pdf
    • https://cdn.shopify.com/s/files/1/0435/7118/3777/files/retinopatia_diabetica_grados.pdf
    • https://cdn.shopify.com/s/files/1/0434/1966/4541/files/libro_bhagavad_gita_en_espaol.pdf
    • https://cdn.shopify.com/s/files/1/0433/1218/5494/files/lovuvadivev.pdf
    • https://cdn.shopify.com/s/files/1/0430/2585/8714/files/49277130652.pdf
    • https://cdn.shopify.com/s/files/1/0429/8211/3433/files/pofodevetoziropalanerena.pdf
    • https://cdn.shopify.com/s/files/1/0462/6766/2490/files/photolithography_book.pdf
    • https://cdn.shopify.com/s/files/1/0433/4590/3774/files/10669024534.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009590.bin
9fc56cdfd5f6efc36b333c9f922c4efe31c11db2c6b18e88b2eb64c7dadc08d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9590 5336 bytes
font_01_sfnt_off0000a791.bin
a8890a88ca530b04a44ca492a1bd4bd1eecc7376c849cc4d2c28d018f4630409		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA791 10640 bytes
font_02_sfnt_off0000cbf3.bin
266019cae7b95b4f7dd2d6babc6ca61e47cc4490f28069eeaafe67f0b6c56e17		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCBF3 10808 bytes

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