Malicious PDF — malware analysis report

Static analysis result for SHA-256 59608f92ac53702a…

MALICIOUS

PDF

45.7 KB Created: 2020-08-03 02:49:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4d9552345097a1b5146d99f95e5b4097 SHA-1: c37cb2de13f861842f2bc9e4d7fa7a5251a0019e SHA-256: 59608f92ac53702a66033739702d906011668b796a816fbc732cd23ad93bf1e8
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded URLs, with a critical heuristic identifying it as a malicious redirector link farm. The primary URL, 'https://ttraff.cc/pify?keyword=nicki+minaj+playtime+is+over', is flagged as malicious. The document body, though heavily obfuscated, contains this URL and other links pointing to Shopify domains, suggesting a lure to obscure malicious destinations. The file's purpose appears to be directing users to potentially harmful content through a network of redirectors.

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=nicki+minaj+playtime+is+over
    • http://files.isthisthepoint.com/uploads/1/3/1/0/131070459/9c88036adbba2e.pdf
    • http://files.vtfbla.org/uploads/1/3/1/4/131407901/sabuvus_gujipikedulakow.pdf
    • http://files.susmanosextendidasmexico.com/uploads/1/3/1/3/131380547/dadilobu.pdf
    • https://cdn.shopify.com/s/files/1/0433/3587/6776/files/73662926272.pdf
    • https://cdn.shopify.com/s/files/1/0429/1434/9215/files/fikesigirefivefapixisubud.pdf
    • https://cdn.shopify.com/s/files/1/0434/4391/2856/files/wavuxedifopemete.pdf
    • https://cdn.shopify.com/s/files/1/0431/0954/8188/files/takewadumoxobope.pdf
    • https://cdn.shopify.com/s/files/1/0431/8691/3442/files/tivoxizawiwumotiribawoli.pdf
    • https://cdn.shopify.com/s/files/1/0427/5005/0460/files/14213999524.pdf
    • https://cdn.shopify.com/s/files/1/0440/0427/8422/files/85241046182.pdf
    • https://cdn.shopify.com/s/files/1/0434/6642/4486/files/massey_ferguson_to35_manual_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/1355/4855/files/9960579996.pdf
    • https://cdn.shopify.com/s/files/1/0431/1187/4716/files/12140038555.pdf
    • https://cdn.shopify.com/s/files/1/0429/1851/0745/files/pakotenabi.pdf
    • https://cdn.shopify.com/s/files/1/0432/9324/5590/files/76719672144.pdf
    • https://cdn.shopify.com/s/files/1/0433/2558/7609/files/99581590161.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_off0000745c.bin
542b450d155e35f5bdbff15e8e119155bfc450319772e84cde77b609233dd6d1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x745C 5348 bytes
font_01_sfnt_off00008693.bin
1fa427d17494901bae462e2d2f209bc6ef2790b9cf1076c9b2fd1ff78208308b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8693 10452 bytes

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