Malicious PDF — malware analysis report

Static analysis result for SHA-256 93222c88ff8b0a1d…

MALICIOUS

PDF

49.6 KB Created: 2020-08-16 14:06:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8137a5a6c7aa1ee64a1a3c4b56e8a41b SHA-1: ad40276b29f14f4e74894d544bc07e51df0d9670 SHA-256: 93222c88ff8b0a1dc1d02a892423d14dc1af9d061525546b88083375baa0ae48
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 external resources. One critical heuristic firing indicates a malicious redirector link to 'https://ttraff.cc/pify?keyword=bdc+full+form+in+sap'. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to redirect the user to malicious infrastructure. 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.cc/pify?keyword=bdc+full+form+in+sap
    • http://files.wildlifepolitics.org/uploads/1/3/1/0/131071289/varafenev-pusabezututiv-retuv-dovibotij.pdf
    • http://merabi.isunsslha.com/uploads/1/3/0/7/130738870/9668751.pdf
    • http://files.backinactionchiropractic.com/uploads/1/3/2/3/132303406/1778982.pdf
    • https://cdn.shopify.com/s/files/1/0428/3678/7356/files/tikifudulijolizuzezaz.pdf
    • https://cdn.shopify.com/s/files/1/0433/4672/2969/files/4373092981.pdf
    • https://cdn.shopify.com/s/files/1/0439/3569/5016/files/jzyk_angielski_sownictwo_tematyczny_zbir_wicze.pdf
    • https://cdn.shopify.com/s/files/1/0435/6122/2307/files/how_to_use_content_patcher_stardew_valley.pdf
    • https://cdn.shopify.com/s/files/1/0430/5109/0077/files/accounting_information_systems_10th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0429/7415/0809/files/94332850246.pdf
    • https://cdn.shopify.com/s/files/1/0433/0356/7515/files/canzoniere_petrarca_einaudi.pdf
    • https://cdn.shopify.com/s/files/1/0431/6646/6216/files/noradaninagevilivexi.pdf
    • https://cdn.shopify.com/s/files/1/0433/1782/1605/files/64073212774.pdf
    • https://cdn.shopify.com/s/files/1/0430/5443/2410/files/asphalt_4_game_for_java.pdf
    • https://cdn.shopify.com/s/files/1/0431/0866/3457/files/gegisebadoro.pdf
    • https://cdn.shopify.com/s/files/1/0437/4292/0869/files/pendulum_chart.pdf
    • https://cdn.shopify.com/s/files/1/0428/6801/5260/files/89405586016.pdf
    • https://cdn.shopify.com/s/files/1/0437/1690/3080/files/pojidosufegabu.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/
    • https://cdn.shopify.com/s/files/1/0439/3569/5016/fi

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000073ca.bin
443600d47824d208b710c5fe16877afbc33c907d7f423fba60c060e7bb65d06c
pdf-font-stream PDF embedded font (sfnt) at offset 0x73CA 5348 bytes
font_01_sfnt_off000085d7.bin
0c6655d2bc6bb524badd2d9d8b56c6f9a182c409658f5a0ac17a672ebfb8c072
pdf-font-stream PDF embedded font (sfnt) at offset 0x85D7 17052 bytes