Malicious PDF — malware analysis report

Static analysis result for SHA-256 b95781ffaad14d65…

MALICIOUS

PDF

74.0 KB Created: 2020-08-03 15:33:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6d6acb7a47acbdf7b2fbfbb9563e4683 SHA-1: bc2d8770f1e9c96a366be884edad96f28060a9fa SHA-256: b95781ffaad14d6550ed46b661138efce96dc7bd626c3bf3ac9decc8a17c3383
160 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one identified as a malicious redirector. The document body and heuristic firings indicate an advance-fee scam lure, likely attempting to trick the user into clicking the malicious link to claim a prize or parcel. The primary malicious IOC is the redirector URL.

Heuristics 4

  • 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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=inclusive+growth+and+issues+arising+from+it+pdf
    • http://files.lotusawakeningbodywork.com/uploads/1/3/1/3/131384721/89b487b80.pdf
    • http://files.attentionruby.com/uploads/1/3/2/8/132814306/213619.pdf
    • http://files.theowlfrompowell.com/uploads/1/3/1/4/131453453/jevawubofelugof.pdf
    • https://cdn.shopify.com/s/files/1/0431/1754/3588/files/jododutimojegaferakoki.pdf
    • https://cdn.shopify.com/s/files/1/0432/5723/3576/files/32000072653.pdf
    • https://cdn.shopify.com/s/files/1/0431/0840/1316/files/missile_wars_minecraft.pdf
    • https://cdn.shopify.com/s/files/1/0432/7469/8912/files/19431837461.pdf
    • https://cdn.shopify.com/s/files/1/0433/7578/8188/files/pattern_runecloth_bag.pdf
    • https://cdn.shopify.com/s/files/1/0432/0650/8701/files/88432291777.pdf
    • https://cdn.shopify.com/s/files/1/0432/0670/5311/files/74381353990.pdf
    • https://cdn.shopify.com/s/files/1/0437/7539/3944/files/nbme_surgery_form_2_answers.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1204107997.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_off0000e44b.bin
14f59ac66e860fc3deb637031cbcc5e2965a13964decb9feb28c5cb5e18f5a44		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE44B 5656 bytes
font_01_sfnt_off0000f778.bin
ea499592642d442caed830bb19ead664b2cb3dd63e2a84da6d2fb194d1e89de0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF778 10420 bytes

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