Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c0924c07b93c7c3…

MALICIOUS

PDF

52.2 KB Created: 2020-08-03 23:33:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5384922c851d8a67b6362d232544b6f0 SHA-1: 00dd31dd9d98ece9d8003c339951c987af670b8e SHA-256: 2c0924c07b93c7c33bfe0e397ba2acfbe03699169be9704a83798aaca557bdc4
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a malicious redirector link to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'gold bangles designs catalogue pdf' and the malicious URL, suggesting a lure to trick users into clicking the link. The presence of a link farm further supports the malicious intent of distributing links to potentially harmful content.

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.com/pify?keyword=gold+bangles+designs+catalogue+pdf
    • http://files.livingwhole.net/uploads/1/3/1/3/131379540/aa25f9a9db01f0.pdf
    • http://files.surrenderedtochrist.org/uploads/1/3/2/6/132681656/wulegi.pdf
    • http://files.broadsidestories.net/uploads/1/3/0/7/130776152/3a6e3de763176.pdf
    • https://cdn.shopify.com/s/files/1/0434/5636/4709/files/nascar_race_song.pdf
    • https://cdn.shopify.com/s/files/1/0428/7778/0134/files/tojivofegejizigokeguluruw.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nenixuraxolitater.pdf
    • https://cdn.shopify.com/s/files/1/0437/7218/2685/files/1984_niv_bible.pdf
    • https://cdn.shopify.com/s/files/1/0439/7917/8142/files/remove_punctuation_python_3.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rasebiv.pdf
    • https://cdn.shopify.com/s/files/1/0431/6371/3695/files/38225701596.pdf
    • https://cdn.shopify.com/s/files/1/0430/1537/2949/files/32527005362.pdf
    • https://cdn.shopify.com/s/files/1/0430/9060/8285/files/forgotten_shore_map_piece.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99839510681.pdf
    • https://cdn.shopify.com/s/files/1/0427/6404/2396/files/mitesuwakekoluxuvefog.pdf
    • https://cdn.shopify.com/s/files/1/0436/9219/5993/files/different_types_of_cells_in_biology.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_off0000777e.bin
8c0ba7b87ec3a242d831bf6b7b5fe5702572984ff6fd1b217d93d7facc9dc451		 pdf-font-stream PDF embedded font (sfnt) at offset 0x777E 5396 bytes
font_01_sfnt_off000089f2.bin
1f3ca473eb3d8ff2fd70a3b3afccb6c65b535263b900ef6d611ed2727a6ef183		 pdf-font-stream PDF embedded font (sfnt) at offset 0x89F2 10556 bytes
font_02_sfnt_off0000ae40.bin
c41fc46809d2260d2d1a821cef6bb00dae560fdbad380da94a93f29d012df54e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAE40 16164 bytes

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