Malicious PDF — malware analysis report

Static analysis result for SHA-256 af6e4d5d2ebf153c…

MALICIOUS

PDF

43.0 KB Created: 2020-08-24 18:30:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7987d86bdef006de5313a910f9288469 SHA-1: 4f4f0e7551fbd16b64a6c10e92f0ce161f41f798 SHA-256: af6e4d5d2ebf153c7fca913b9f812632b4280fd10463aacccdd6a652127ed1d2
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=charkha+mera+rangla+sad+ringtone'. Additionally, it exhibits a PDF link farm behavior, with numerous external PDF links, including one to 'https://cdn.shopify.com/s/files/1/0429/1405/4300/files/gawotaxavokipo.pdf'. The document body contains the redirector URL and a benign-looking PDF filename, suggesting a lure to external content.

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=charkha+mera+rangla+sad+ringtone
    • http://files.costacalidapropertybroker.com/uploads/1/3/0/8/130874126/2374865.pdf
    • http://files.occasiongifts4all.com/uploads/1/3/1/0/131069763/xenedozogi.pdf
    • https://cdn.shopify.com/s/files/1/0429/1405/4300/files/gawotaxavokipo.pdf
    • https://cdn.shopify.com/s/files/1/0429/9869/4042/files/norapeluperoxosavikixeso.pdf
    • https://cdn.shopify.com/s/files/1/0433/9020/6101/files/calculo_estructural_ingenieria_civil.pdf
    • https://cdn.shopify.com/s/files/1/0430/9660/4825/files/balance_sheet_in_accounting_ppt.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lipowu.pdf
    • https://cdn.shopify.com/s/files/1/0435/5312/8612/files/north_coast_real_estate_guide.pdf
    • https://cdn.shopify.com/s/files/1/0433/7070/9142/files/d_d_unearthed_arcana_5e.pdf
    • https://cdn.shopify.com/s/files/1/0436/1771/4338/files/conversione_in_word_i_love.pdf
    • https://cdn.shopify.com/s/files/1/0438/5410/2688/files/soziwoziben.pdf
    • https://cdn.shopify.com/s/files/1/0430/9821/0461/files/chalet_girl_imdb_parents_guide.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_off00005351.bin
99bc0d178844ec91df47aa4b0ef94d358d70285514b7dc2c254e5cd0e13ba949		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5351 5208 bytes
font_01_sfnt_off000064da.bin
33aa6279b53456fa1edb5b21c720ba01f4271759bf1d5a28337ed43a38960fb6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64DA 3096 bytes
font_02_sfnt_off000071c1.bin
319612f69ef701a621a0b2192a908abafd329d6fd1d279919fbf97a4bb52fdec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71C1 14332 bytes

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