Malicious PDF — malware analysis report

Static analysis result for SHA-256 465c9a132e2191be…

MALICIOUS

PDF

42.0 KB Created: 2020-08-28 09:02:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 58ba6336dc8da44c0afc3a100d0a38db SHA-1: 25e5bd9229d4490e0eb3840be097b6e861907740 SHA-256: 465c9a132e2191be936e87710387b098bafc64508a5d9a013e1b44b782135a54
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify domains, but one critical link directs to a known malicious redirector. The document body contains obfuscated text and a URL that appears to be the primary lure. The presence of a link farm suggests an attempt to distribute malicious content or engage in SEO poisoning.

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=haggis+neeps+and+tatties+starter
    • http://files.jennyjohnsonart.com/uploads/1/3/0/8/130873717/5600255.pdf
    • http://jajoli.alphak-9designs.com/uploads/1/3/1/4/131483337/winal.pdf
    • http://files.mykharms.com/uploads/1/3/0/7/130739251/vowazexiwek-xazevawuvuseduf-fixufag-nalegotesu.pdf
    • http://nileni.skiingisbelieving.org/uploads/1/3/1/4/131438379/f90573.pdf
    • https://cdn.shopify.com/s/files/1/0428/0988/4838/files/90731192685.pdf
    • https://cdn.shopify.com/s/files/1/0459/8648/0285/files/badoo_apk_play_store.pdf
    • https://cdn.shopify.com/s/files/1/0430/9316/4199/files/kegokimawukeja.pdf
    • https://cdn.shopify.com/s/files/1/0432/5300/6494/files/natidewiwodubikulamij.pdf
    • https://cdn.shopify.com/s/files/1/0439/5096/4904/files/25946937400.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/44368867506.pdf
    • https://cdn.shopify.com/s/files/1/0437/7142/9016/files/5368570423.pdf
    • https://cdn.shopify.com/s/files/1/0434/0360/8216/files/34664835173.pdf
    • https://cdn.shopify.com/s/files/1/0428/3046/3135/files/david_rayner_maths_book_answers.pdf
    • https://cdn.shopify.com/s/files/1/0450/0137/5912/files/konijazawububujidomopi.pdf
    • https://cdn.shopify.com/s/files/1/0428/7044/0095/files/ziniwitituzoxajojokuji.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_off00006702.bin
23672358048fb4d657aeeaad9db36770390f68ba5207a44974c6deaa5bc6d5eb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6702 5056 bytes
font_01_sfnt_off0000783a.bin
40fb859fd1e38c0618575dd1cf83cf1ca97ce3b8d4df023ebd0d2da1a30c2ecd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x783A 10220 bytes

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