Malicious PDF — malware analysis report

Static analysis result for SHA-256 fad421b975a9687c…

MALICIOUS

PDF

44.9 KB Created: 2020-08-27 23:01:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b1e5b399e5c9d490e9a7a1753b3a4e16 SHA-1: 0c021cf14388a6461403b99ad2a7bff4e8bfacba SHA-256: fad421b975a9687c0b620c611f4d32b9d78421f5a8d0cc8309ddff330621e4ec
150 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific malicious redirector URL, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains the malicious URL and references to movie streaming, suggesting a lure. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms the primary URL leads to known malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=my+stupid+boss+full+movie+watch+online+free
    • http://noranu.humanitiesnd.org/uploads/1/3/0/7/130739456/7152380.pdf
    • http://files.southeastfinancialcenter.com/uploads/1/3/0/7/130740530/pikiwizibisu-wedasuvuvu.pdf
    • http://files.culturalartnetwork.org/uploads/1/3/1/4/131437885/6dd46.pdf
    • https://cdn.shopify.com/s/files/1/0447/9392/1685/files/briggs_and_stratton_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0430/4823/9257/files/sawogimizomuges.pdf
    • https://cdn.shopify.com/s/files/1/0430/8166/2613/files/xuzuzijefusufus.pdf
    • https://cdn.shopify.com/s/files/1/0436/2698/7680/files/netflix_app_mac_os.pdf
    • https://cdn.shopify.com/s/files/1/0432/1335/7214/files/bujugujebumajedasoj.pdf
    • https://cdn.shopify.com/s/files/1/0429/1143/2857/files/89491526046.pdf
    • https://cdn.shopify.com/s/files/1/0428/3095/4655/files/the_testaments_free_ebook.pdf
    • https://cdn.shopify.com/s/files/1/0431/4162/8072/files/86942122379.pdf
    • https://cdn.shopify.com/s/files/1/0430/0311/7721/files/40366205266.pdf
    • https://cdn.shopify.com/s/files/1/0432/7797/5717/files/6227331839.pdf
    • https://cdn.shopify.com/s/files/1/0431/9235/2928/files/nazikejevetibelura.pdf
    • https://cdn.shopify.com/s/files/1/0434/3631/0693/files/nilob.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_off0000613f.bin
03bceaafead2296a50e96561c93e16fc05f0a4159beb4b21bfdbf2b5c434d8ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x613F 5676 bytes
font_01_sfnt_off00007475.bin
d89dcb4f6ddedf3045d5b3aed792461068afa5b9692cdfe43fbfc9f77401f499		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7475 10420 bytes
font_02_sfnt_off0000982f.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x982F 4324 bytes

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