Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e5bc78dfa48fd2c…

MALICIOUS

PDF

55.8 KB Created: 2020-08-16 17:53:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 54ac7e4a88001c3aaca4339889d35bc5 SHA-1: 739db1ff7a7a12ff331488ac8d04ae951dc74d4d SHA-256: 4e5bc78dfa48fd2c9dd98fd8d1b616716f8907e82774244b9fda6163bf1ed7a7
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=cisco+sfp-+h10gb-+cu5m+datasheet'. This URL is presented within the document body, disguised as a Cisco datasheet link. The file also exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on cdn.shopify.com. The primary intent appears to be directing users to malicious infrastructure through a deceptive link.

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=cisco+sfp-+h10gb-+cu5m+datasheet
    • http://molavisix.arlingtonroofingco.com/uploads/1/3/1/8/131871727/jupusirozufigifijuru.pdf
    • http://files.arvidsonconsulting.com/uploads/1/3/0/7/130775205/vudatuwosox-bibowupa.pdf
    • http://files.haylexgrant.com/uploads/1/3/2/6/132681619/f3daa81.pdf
    • http://files.thisisfire.org/uploads/1/3/2/6/132696194/kibela.pdf
    • https://cdn.shopify.com/s/files/1/0433/8683/1004/files/29411352524.pdf
    • https://cdn.shopify.com/s/files/1/0438/3073/9106/files/pesepusoxesexesanesuku.pdf
    • https://cdn.shopify.com/s/files/1/0432/7738/5892/files/gigoxusapigolus.pdf
    • https://cdn.shopify.com/s/files/1/0440/5411/8550/files/google_sheet_filter_function_date.pdf
    • https://cdn.shopify.com/s/files/1/0441/3197/5320/files/sufowudaguzataj.pdf
    • https://cdn.shopify.com/s/files/1/0434/0350/9914/files/zegesugorojadazimowifeb.pdf
    • https://cdn.shopify.com/s/files/1/0439/4758/9800/files/lagu_percaya_aku_versi_dj.pdf
    • https://cdn.shopify.com/s/files/1/0434/1517/5335/files/small_size_reader_apk_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/0023/3112/files/lakevowijuzuve.pdf
    • https://cdn.shopify.com/s/files/1/0432/5045/0600/files/8311431535.pdf
    • https://cdn.shopify.com/s/files/1/0438/8113/6296/files/how_to_install_darnified_ui_oblivion.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_off00008bcd.bin
b21b9d98679d42228f574aa11e285334e87ec4ef5d598445775227da66133003		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8BCD 5836 bytes
font_01_sfnt_off00009f96.bin
f16322f9eb436515e32db79c895597c10f078880c051de2666e88ea1851ea8ce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9F96 16440 bytes

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