Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a14528cc06590bf…

MALICIOUS

PDF

47.0 KB Created: 2020-08-11 18:04:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 94c52b121f1e638121eef9eaf3eca0a2 SHA-1: 13cf208f1449a4a031f4c01a151dc8105538e92e SHA-256: 7a14528cc06590bfeff655dfa233608a0c3d2176ff6a0df949a447b1ca1b43b1
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the string "3d pdf maker software", likely a lure to encourage clicks. The presence of a large number of external links, many hosted on Shopify, suggests a link farm or redirection scheme designed to distribute malware or phish for credentials. No scripts were extracted, limiting the analysis of direct payload execution.

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=3d+pdf+maker+software
    • http://files.icgpercussion.com/uploads/1/3/2/7/132712661/2031111.pdf
    • http://natagawu.scenicchurch.com/uploads/1/3/0/8/130874104/naxaxezi.pdf
    • http://wekizufiw.islandconsulting.com.au/uploads/1/3/2/7/132740720/kogokub_bomijobox_xifurin_vafalu.pdf
    • http://files.bmwclubulstersection.com/uploads/1/3/2/6/132695492/6313870.pdf
    • https://cdn.shopify.com/s/files/1/0428/1185/0918/files/biomassa_para_energia.pdf
    • https://cdn.shopify.com/s/files/1/0435/8209/5517/files/44493044644.pdf
    • https://cdn.shopify.com/s/files/1/0437/5884/6109/files/fazejaxomesobowa.pdf
    • https://cdn.shopify.com/s/files/1/0434/6760/4128/files/lixewinuxedijofidowanelot.pdf
    • https://cdn.shopify.com/s/files/1/0428/2325/4179/files/missouri_form_14.pdf
    • https://cdn.shopify.com/s/files/1/0432/3262/4808/files/24081125909.pdf
    • https://cdn.shopify.com/s/files/1/0432/6408/2073/files/mumok.pdf
    • https://cdn.shopify.com/s/files/1/0432/3504/9640/files/jabugesifijofenemixaxo.pdf
    • https://cdn.shopify.com/s/files/1/0427/4513/5260/files/wibozuvofizegagevosela.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_off00007979.bin
2712dbaa39392c3a0c4682a8b0429acee024711565041777e69bda43ba9a0ddd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7979 5380 bytes
font_01_sfnt_off00008bc6.bin
8835da64e63054877103fb60baabeb76fe61e38945afc1565dd50ac09b83cfd4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8BC6 10280 bytes

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