Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f94e4fa31f7f4f4…

MALICIOUS

PDF

52.7 KB Created: 2020-08-08 01:22:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: aa3658b2085aa871bcd0e4e5fff9eeba SHA-1: b5338568e308c469530ad50364b4c024cdc50706 SHA-256: 2f94e4fa31f7f4f4b17650ce315266c8b1ced4bbc9686246584e187788f63c90
150 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 firing for a malicious redirector. The primary malicious URL, 'https://ttraff.cc/pify?keyword=plastic+deformation+of+metals+pdf', is designed to lure users into clicking it. The document body, though heavily obfuscated, contains this URL and other links, suggesting a social engineering attempt to drive traffic to malicious infrastructure. No scripts were extracted, but the PDF structure and link farm indicate a delivery mechanism for further compromise.

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=plastic+deformation+of+metals+pdf
    • http://dibudil.genelynjayephotography.com/uploads/1/3/2/8/132815002/pelerilugudo_pumidiludab.pdf
    • http://files.deneiseself.com/uploads/1/3/1/3/131380305/zajobesanene_fejotuzu_vokad.pdf
    • http://files.equivistacoaching.com/uploads/1/3/0/7/130739368/ninitejamapefabatota.pdf
    • https://cdn.shopify.com/s/files/1/0434/4505/9749/files/86659706491.pdf
    • https://cdn.shopify.com/s/files/1/0445/9456/1188/files/balochistan_textbook_board_quetta_books.pdf
    • https://cdn.shopify.com/s/files/1/0431/6728/5410/files/darufi.pdf
    • https://cdn.shopify.com/s/files/1/0429/8693/0329/files/laxukesarobivuwawolefova.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/53567737566.pdf
    • https://cdn.shopify.com/s/files/1/0433/6464/7077/files/27149919748.pdf
    • https://cdn.shopify.com/s/files/1/0433/0985/8984/files/71947108692.pdf
    • https://cdn.shopify.com/s/files/1/0431/0722/1658/files/64285596712.pdf
    • https://cdn.shopify.com/s/files/1/0428/1057/2967/files/64668842763.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_off00007152.bin
77c9cfe22c54edffca379c30a9669d365a3b422db0503f43cc9aa3f5ad67b14d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7152 5300 bytes
font_01_sfnt_off00008345.bin
a414d8eb36d5a8e7a809565c22803ab019bd60dce5be1458cacbd31585d455e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8345 14684 bytes
font_02_sfnt_off0000b162.bin
6927cb6d089225922097feb36f218f290667caa55ca1624a783867532cb920dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB162 16088 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.