Malicious PDF — malware analysis report

Static analysis result for SHA-256 a283041ca2ebc0ce…

MALICIOUS

PDF

46.7 KB Created: 2020-08-23 01:59:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b0b1226e8372ec4f390e5e855a21db27 SHA-1: 5f5b922814e3318f1f25a1e79359768617d9b83d SHA-256: a283041ca2ebc0ce72934bda9c62d7311ea77034129ecd7d032253256e90da6e
152 Risk Score

Malware Insights

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

The PDF file contains a malicious redirector link disguised as a project scope template. The ML classifier strongly indicates maliciousness. The embedded URL leads to a redirector that is likely part of a phishing or malware distribution chain.

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=how+to+define+scope+of+project+template
    • http://files.fccwareham.org/uploads/1/3/2/7/132740860/4414195.pdf
    • http://pamobo.sonsoflight.com/uploads/1/3/2/3/132302870/kofivemijupadav.pdf
    • http://files.vietcapitalcorp.com/uploads/1/3/2/6/132696214/177383ba.pdf
    • http://files.goodandgraciousco.com/uploads/1/3/1/3/131383342/db365acd.pdf
    • http://files.goodandgraciousco.com/uploa
    • https://cdn.shopify.com/s/files/1/0434/9136/0934/files/73279675499.pdf
    • https://cdn.shopify.com/s/files/1/0429/0763/1783/files/81673263857.pdf
    • https://cdn.shopify.com/s/files/1/0429/7415/0809/files/memidodizomepixav.pdf
    • https://cdn.shopify.com/s/files/1/0435/9018/9215/files/raxoguz.pdf
    • https://cdn.shopify.com/s/files/1/0429/8476/7641/files/73529291917.pdf
    • https://cdn.shopify.com/s/files/1/0434/7274/8709/files/bgp_attributes_explained.pdf
    • https://cdn.shopify.com/s/files/1/0440/5523/2677/files/odisha_map_download_in_english.pdf
    • https://cdn.shopify.com/s/files/1/0433/4610/0377/files/sajivizefuzaxatimesitami.pdf
    • https://cdn.shopify.com/s/files/1/0434/8231/6957/files/2545386581.pdf
    • https://cdn.shopify.com/s/files/1/0429/4439/7468/files/5344777463.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nejoxalivivurotuzepebibus.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_off00007838.bin
cea4e37b6ea77b880b081fec9eb892c02975e48f9c912e19e5369910878952eb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7838 5428 bytes
font_01_sfnt_off00008aa6.bin
90f409dd2f2e52c9fe8eec93926338d2bf1c22aa87e6b1f6bebc4e4efdc94613		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8AA6 10116 bytes

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