Malicious PDF — malware analysis report

Static analysis result for SHA-256 592667019fd83318…

MALICIOUS

PDF

35.5 KB Created: 2020-08-22 16:09:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 90c78a6a3ed9437ee9f5bf5928ae934e SHA-1: e90fb7a600712cb18488dfe845227e2bbfd5cd05 SHA-256: 592667019fd83318ddea40ea057dcccabc19c8ba2301d8d471cd38bf538ede10
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to `https://ttraff.com/pify?keyword=canyon+web+camera+drivers+cnr-+wcam43+free`. This URL is likely part of a phishing campaign or a malware distribution scheme. The document also contains a large number of embedded links, many hosted on `cdn.shopify.com`, which is flagged as a PDF link farm. The primary malicious URL is the most critical IOC.

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.com/pify?keyword=canyon+web+camera+drivers+cnr-+wcam43+free
    • http://files.everydaythread.com/uploads/1/3/2/6/132695445/lepugepenujas.pdf
    • http://xivibozum.havenhomeandgarden.com/uploads/1/3/0/8/130813765/baad71530df.pdf
    • https://cdn.shopify.com/s/files/1/0438/4840/1046/files/mentors_math_book.pdf
    • https://cdn.shopify.com/s/files/1/0430/9640/8218/files/pdf_aquaponics_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/6827/6384/files/kubajawol.pdf
    • https://cdn.shopify.com/s/files/1/0434/7022/5574/files/how_to_use_multimeter_tester.pdf
    • https://cdn.shopify.com/s/files/1/0437/4721/3464/files/merger_arbitrage_strategy.pdf
    • https://cdn.shopify.com/s/files/1/0433/7428/0855/files/47188029566.pdf
    • https://cdn.shopify.com/s/files/1/0436/9301/5195/files/47766709229.pdf
    • https://cdn.shopify.com/s/files/1/0430/3293/6605/files/viruzofebedatajubapovuf.pdf
    • https://cdn.shopify.com/s/files/1/0427/7954/1671/files/63786918289.pdf
    • https://cdn.shopify.com/s/files/1/0428/9950/5311/files/46243788963.pdf
    • https://cdn.shopify.com/s/files/1/0428/5225/3863/files/77195822082.pdf
    • https://cdn.shopify.com/s/files/1/0434/9018/1286/files/niwubiravuwepitesu.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_off00004a61.bin
17b6038c530b3e707f2bd8ddb489bf611a0a5424aa857a2c1d914d21a1faad46		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4A61 5716 bytes
font_01_sfnt_off00005de2.bin
37410c9729d04e9187d65ab23f23aef7b7ce28a741656d90673bef0b51cbbb9a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DE2 10508 bytes

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