Malicious PDF — malware analysis report

Static analysis result for SHA-256 36df5ae45320a419…

MALICIOUS

PDF

58.1 KB Created: 2020-08-02 22:51:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5757c582b6234c1c117dc985a618ab64 SHA-1: 26b67a6afa7694582b5d965ac21ec9fbdcc21284 SHA-256: 36df5ae45320a419fca6e08acdef0906ba5d30bc27b5a33cb2480cdc59bd45ec
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, disguised as a furnace manual. This redirector likely leads to a further malicious payload. The document also contains a large number of external PDF links, many hosted on Shopify, suggesting a link farm or SEO poisoning attempt to increase visibility of the malicious content. 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=ruud+furnace+manual
    • http://files.archelps.com/uploads/1/3/1/6/131636762/tisuwoxuropu_nutexuxo_favuditupagazun_savedezu.pdf
    • http://files.drconsultinginc.com/uploads/1/3/0/8/130874493/mebijenivo.pdf
    • http://files.portmelbournenetball.com/uploads/1/3/1/4/131406749/pipesedi.pdf
    • https://cdn.shopify.com/s/files/1/0432/7014/4158/files/pimewebuxakaputos.pdf
    • https://cdn.shopify.com/s/files/1/0432/8862/5302/files/tudifadajobozutuzalaj.pdf
    • https://cdn.shopify.com/s/files/1/0431/1387/3569/files/1149058203.pdf
    • https://cdn.shopify.com/s/files/1/0432/6231/2611/files/what_time_zone_is_indianapolis.pdf
    • https://cdn.shopify.com/s/files/1/0428/2561/3475/files/66958132803.pdf
    • https://cdn.shopify.com/s/files/1/0434/6609/6806/files/3642152766.pdf
    • https://cdn.shopify.com/s/files/1/0433/7005/3784/files/risonewoz.pdf
    • https://cdn.shopify.com/s/files/1/0431/7783/6702/files/jejujida.pdf
    • https://cdn.shopify.com/s/files/1/0438/3837/4050/files/psi_entities_101.pdf
    • https://cdn.shopify.com/s/files/1/0433/1801/8216/files/xorodumajinoduvomugarof.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006840.bin
ce955d81b85a857b001fd5ff24c291847553bca24338461c9060b1812eba279a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6840 10828 bytes
font_01_sfnt_off00008b48.bin
dcd416c964e2be5a3d42d2f762bafeba6bfb605dbade55746eedeaa751a7004a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B48 4996 bytes
font_02_sfnt_off00009c2d.bin
0b38f6fd5e0b54bfa22d5adee1cfe00629fe134100fc7cfc1ad14a2ab7974207		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9C2D 6148 bytes
font_03_sfnt_off0000ac0d.bin
35d97903b426c32c85a95fd0783210859670639793ae903684d38ea6cc2e6d50		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAC0D 15272 bytes

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