Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfb82a82513faded…

MALICIOUS

PDF

45.3 KB Created: 2020-08-19 03:40:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3ae115c082a0d26cec3229c457aacfbd SHA-1: 1f101c6f296d72090ceaddfbdbf8cabd76bcbab3 SHA-256: dfb82a82513fadedd36520b4e4a314bd49bf1b4baa3d76079289e854f6262028
120 Risk Score

Malware Insights

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

The PDF document contains a link farm designed to mimic search engine results, directing users to a malicious redirector at `https://ttraff.cc/pify?keyword=bursa+malaysia+nestle+annual+report`. This redirector likely serves as a gateway to further malicious content or phishing pages. The document's content and structure strongly suggest a social engineering attempt to trick users into visiting the malicious 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=bursa+malaysia+nestle+annual+report
    • http://files.arcciem.com/uploads/1/3/1/4/131409309/1416509.pdf
    • http://files.wegnerauctioneers.com/uploads/1/3/1/3/131383802/pujonaxevinesofazok.pdf
    • https://cdn.shopify.com/s/files/1/0437/7480/4119/files/sojakasamegu.pdf
    • https://cdn.shopify.com/s/files/1/0430/6249/3345/files/gipipuduruwawutireg.pdf
    • https://cdn.shopify.com/s/files/1/0435/5185/0647/files/cat_2020_question_paper_with_solution_hitbullseye.pdf
    • https://cdn.shopify.com/s/files/1/0428/5287/6455/files/sumunepipom.pdf
    • https://cdn.shopify.com/s/files/1/0429/9964/4314/files/91473880199.pdf
    • https://cdn.shopify.com/s/files/1/0437/2971/5354/files/40621000736.pdf
    • https://cdn.shopify.com/s/files/1/0433/1284/0872/files/morfologia_de_angiospermas.pdf
    • https://cdn.shopify.com/s/files/1/0433/8440/6181/files/jeguwanukabaximaxogima.pdf
    • https://cdn.shopify.com/s/files/1/0430/6976/7842/files/19639584665.pdf
    • https://cdn.shopify.com/s/files/1/0432/5382/5704/files/allotment_of_share_ppt.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_off00005ca4.bin
4a872f6a5415b5654dd7a2b70acb9e1d46b72186b23d9c1e8a8731413c6d5f00		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5CA4 5000 bytes
font_01_sfnt_off00006d89.bin
b295fc91a09d5eca831cba87cdb6b98fd2c13e964a0e003869b1d2e82ec28965		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D89 14308 bytes
font_02_sfnt_off00009aa9.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9AA9 4324 bytes

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