Malicious PDF — malware analysis report

Static analysis result for SHA-256 bed5587e5db111fe…

MALICIOUS

PDF

56.9 KB Created: 2020-08-01 10:33:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 924920bfb6d2dd6fe962dfd5b9e14bd4 SHA-1: 6bd57d5d4a0e23ef8f18fe23c79159d12f1deac2 SHA-256: bed5587e5db111fe62a5159f5b4a5333f0bfb2a023a58127cc8ec5d2d65657d1
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=the+secret+2006'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same redirector URL. The primary attack vector appears to be social engineering through a deceptive link within the PDF.

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=the+secret+2006
    • http://files.topflightsoccertours.com/uploads/1/3/0/7/130776406/0652de9070.pdf
    • http://files.ignitemybizz.com/uploads/1/3/1/3/131380008/2652519.pdf
    • http://files.shopamityvilleapothecary.com/uploads/1/3/1/4/131406649/raxamafubuliwofuxos.pdf
    • http://files.techsavvi.net/uploads/1/3/2/6/132682731/cd13a5c6ce81c2.pdf
    • https://cdn.shopify.com/s/files/1/0429/1752/7715/files/zazidedetimi.pdf
    • https://cdn.shopify.com/s/files/1/0434/5934/6582/files/96304524473.pdf
    • https://cdn.shopify.com/s/files/1/0434/9391/6837/files/29197098301.pdf
    • https://cdn.shopify.com/s/files/1/0436/3347/5737/files/zumigu.pdf
    • https://cdn.shopify.com/s/files/1/0435/5548/7905/files/57461086568.pdf
    • https://cdn.shopify.com/s/files/1/0434/1491/3191/files/42542158781.pdf
    • https://cdn.shopify.com/s/files/1/0434/9827/4978/files/zififigex.pdf
    • https://cdn.shopify.com/s/files/1/0432/7908/9824/files/zifaragas.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zorugeligix.pdf
    • https://cdn.shopify.com/s/files/1/0431/0673/0144/files/mujunekoti.pdf
    • https://cdn.shopify.com/s/files/1/0433/9341/7366/files/62549383370.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_off0000a0ef.bin
4991010ec63219e0f96adc648b511730ad50d8c3e680585ca86182857a578328
pdf-font-stream PDF embedded font (sfnt) at offset 0xA0EF 5020 bytes
font_01_sfnt_off0000b201.bin
feb3a305f5a95bd9b8b6ad316145f339a20af1d7e8180befb41f6e005ed012cc
pdf-font-stream PDF embedded font (sfnt) at offset 0xB201 10872 bytes