Malicious PDF — malware analysis report

Static analysis result for SHA-256 973dc59fb9934152…

MALICIOUS

PDF

39.4 KB Created: 2020-08-08 01:04:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5b661d7996146aef612dd0aa3e99ee9f SHA-1: f92c6b753ec7e9f46a26d6a20e6b00dbe3932875 SHA-256: 973dc59fb9934152e653abbf45a208cda0126cd0345c01114d6eb74f660bfd32
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in Systems T1059.001 PowerShell

The PDF contains a malicious redirector link disguised as a Mikrotik access point configuration guide. The link leads to 'https://ttraff.com/pify?keyword=mikrotik+access+point+configuration+pdf', which is a known malicious redirector. The document also contains a large number of external PDF links, many hosted on Shopify, likely for SEO manipulation to increase visibility. 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.com/pify?keyword=mikrotik+access+point+configuration+pdf
    • http://fawibofu.oabtrucker.com/uploads/1/3/2/7/132710712/868850ca1611c7.pdf
    • http://files.stonycreekcanineacademy.com/uploads/1/3/2/6/132682829/2147699.pdf
    • http://files.pineriversdogtraining.org/uploads/1/3/1/0/131070688/jaxubusaxekuvotadi.pdf
    • http://files.gamecreek.com/uploads/1/3/2/6/132681824/nijovogexafej.pdf
    • https://cdn.shopify.com/s/files/1/0428/8249/8716/files/19565490114.pdf
    • https://cdn.shopify.com/s/files/1/0427/7121/8588/files/factory_service_manual_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/1967/2472/files/14204388264.pdf
    • https://cdn.shopify.com/s/files/1/0432/8423/4398/files/42236092068.pdf
    • https://cdn.shopify.com/s/files/1/0428/3249/4751/files/jazupatixun.pdf
    • https://cdn.shopify.com/s/files/1/0429/5049/2316/files/sintomas_de_deficiencia_de_vitamina_d.pdf
    • https://cdn.shopify.com/s/files/1/0432/8187/5112/files/xejovizuzuxijinop.pdf
    • https://cdn.shopify.com/s/files/1/0431/5955/2155/files/ielts_listening_answer_sheet_sample.pdf
    • https://cdn.shopify.com/s/files/1/0430/7664/9127/files/59425589072.pdf
    • https://cdn.shopify.com/s/files/1/0436/1152/1187/files/dnd_5e_divine_sense.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_off00005d41.bin
af9a48dcf0f3548afcaca344b1bbabc1960c199de77691f47f26c107502b4800		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D41 5360 bytes
font_01_sfnt_off00006f9d.bin
142b853458f428ebff5f52929bf84dd00246fe58f6dbbf16d29400044aa8ce5c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F9D 9704 bytes

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