Malicious PDF — malware analysis report

Static analysis result for SHA-256 22cce80f85b58476…

MALICIOUS

PDF

40.5 KB Created: 2020-08-13 14:19:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6d5131530396f9c62421fb5e3d6156ba SHA-1: b5c9e0414fa615d75be35e912347d4b25a0696f8 SHA-256: 22cce80f85b58476496141870deb51931878dc1c2c4af35825b16d0e2e43ded4
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, many of which point to a link farm designed to manipulate search engine results. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.ru/wb?keyword=2008%20jeep%20patriot%20owners%20manual%20pdf'. The document body, though heavily obfuscated, contains text related to a '2008 jeep patriot owners manual pdf', suggesting a lure to disguise the malicious intent. No scripts were extracted from this sample.

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.ru/wb?keyword=2008%20jeep%20patriot%20owners%20manual%20pdf
    • http://files.kassotislab.org/uploads/1/3/1/4/131406202/cc8ba7fa06b3ef7.pdf
    • http://files.designinggrove.com/uploads/1/3/1/8/131856852/tobipex.pdf
    • http://files.robinscanlon.com/uploads/1/3/1/0/131070420/lupudemotad_gapamelaj_xedonujavizoza_dedubel.pdf
    • http://files.ddtotalfitness.ca/uploads/1/3/0/7/130739922/kagadaviluliz.pdf
    • http://pevoxe.allkidsbouncealot.com/uploads/1/3/1/3/131381533/suzawivemum.pdf
    • https://cdn.shopify.com/s/files/1/0437/7234/6526/files/20481487476.pdf
    • https://cdn.shopify.com/s/files/1/0427/6885/9303/files/gosakijelomubozisagaraxi.pdf
    • https://cdn.shopify.com/s/files/1/0440/1253/5958/files/cisco_lab_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0440/7217/3733/files/19115204216.pdf
    • https://cdn.shopify.com/s/files/1/0434/5269/4680/files/dikapu.pdf
    • https://cdn.shopify.com/s/files/1/0438/1537/0912/files/wijemifitobapatapopu.pdf
    • https://cdn.shopify.com/s/files/1/0443/5968/0156/files/digestion_y_absorcion_de_proteinas_en_monogastricos.pdf
    • https://cdn.shopify.com/s/files/1/0429/3433/7695/files/vorogo.pdf
    • https://cdn.shopify.com/s/files/1/0429/2119/7724/files/xasitivos.pdf
    • https://cdn.shopify.com/s/files/1/0431/1266/1152/files/27037278086.pdf
    • https://cdn.shopify.com/s/files/1/0437/3171/4199/files/lupopikekewegopotekifo.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_off00005e79.bin
ad6fea16c087e14adb3f42f2d818007f1561503a7a191392e0a560a4a3d1651c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E79 5728 bytes
font_01_sfnt_off000071eb.bin
5a98153b3d922d1fff6f2e2ea03ede76c511d4e9d438d19d5bd1c6933bfe8908		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71EB 10184 bytes

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