Malicious PDF — malware analysis report

Static analysis result for SHA-256 30649e22a61f71f1…

MALICIOUS

PDF

36.1 KB Created: 2020-08-12 00:52:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 85a7b6834657b376f45c7431000dcc5b SHA-1: 15612296b62219d900b94fef22a8b96d94860f56 SHA-256: 30649e22a61f71f1bbbc260a4736233aa45906de2455fd12438e631b95955b36
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector at https://ttraff.com/pify?keyword=nelson+s+pediatric+antimicrobial+therapy+pdf. This suggests the document is designed to redirect users to malicious sites, likely for phishing or malware delivery. The presence of a link farm further supports a malicious intent to distribute traffic or obscure the final destination.

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=nelson+s+pediatric+antimicrobial+therapy+pdf
    • http://files.bluffbeachretreat.com/uploads/1/3/0/9/130968921/b0e03aec59.pdf
    • http://muwubirex.mybritneyspearscollection.com/uploads/1/3/1/4/131407406/zinukurafafiregava.pdf
    • http://files.buscolibrary.org/uploads/1/3/1/6/131637631/1739275.pdf
    • http://files.god4ce.com/uploads/1/3/1/6/131637218/dozogoperal.pdf
    • http://files.raysdobermanskennels.com/uploads/1/3/2/3/132303163/680f5a0edcd9b1e.pdf
    • https://cdn.shopify.com/s/files/1/0435/9772/5864/files/30533914217.pdf
    • https://cdn.shopify.com/s/files/1/0431/8353/8331/files/matetujajadolabi.pdf
    • https://cdn.shopify.com/s/files/1/0432/3187/1139/files/72676668002.pdf
    • https://cdn.shopify.com/s/files/1/0431/9451/5614/files/laxizomijur.pdf
    • https://cdn.shopify.com/s/files/1/0428/1230/9670/files/pudatujonaxefumuvekisixev.pdf
    • https://cdn.shopify.com/s/files/1/0437/7791/7085/files/adobe_reader_free_download_old_version.pdf
    • https://cdn.shopify.com/s/files/1/0431/2521/1296/files/juzisuxafavanejisevewozol.pdf
    • https://cdn.shopify.com/s/files/1/0437/0425/4615/files/34784750408.pdf
    • https://cdn.shopify.com/s/files/1/0440/7836/6885/files/damojomonoz.pdf
    • https://cdn.shopify.com/s/files/1/0429/9161/6153/files/32243086414.pdf
    • https://cdn.shopify.com/s/files/1/0431/1141/5965/files/4625674353.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_off00004a18.bin
dd6d4a5cd05efa3d6d0a9c6695eba70e38564cc86a118a191eb3cc30f3863940		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4A18 5608 bytes
font_01_sfnt_off00005cfb.bin
1118409f1f40851a12d6d61b47a553735eedea641842b9c1ad8fdd04deba8e44		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CFB 11704 bytes

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