Malicious PDF — malware analysis report

Static analysis result for SHA-256 48347a0f8bf44ca5…

MALICIOUS

PDF

57.9 KB Created: 2020-08-11 14:48:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 730fa98854764763e2e8e84694d73e51 SHA-1: e66c054726135ec9d71885058e1a06852d87309d SHA-256: 48347a0f8bf44ca52fb14e8511cf6f6be3b2deeeaa14b140495c1d19711a2145
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains numerous links, with one critical heuristic identifying it as a malicious redirector. The document body, though heavily obfuscated, contains the URL https://ttraff.cc/pify?keyword=vampire+the+masquerade+tzimisce+clanbook+pdf, which is also flagged as a malicious redirector. This suggests the document's primary purpose is to trick the user into visiting this malicious URL, likely leading to further compromise.

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=vampire+the+masquerade+tzimisce+clanbook+pdf
    • http://files.vergetrio.com/uploads/1/3/1/4/131436978/ea1f12dc7.pdf
    • http://files.cornerstonepagans.org/uploads/1/3/1/3/131380601/23d927dba.pdf
    • http://files.chartercommittee.org/uploads/1/3/1/0/131070113/3620550.pdf
    • https://cdn.shopify.com/s/files/1/0438/8972/1496/files/blood_circulatory_system_diagram.pdf
    • https://cdn.shopify.com/s/files/1/0436/2688/9378/files/jopatojexi.pdf
    • https://cdn.shopify.com/s/files/1/0431/9910/3136/files/lagirep.pdf
    • https://cdn.shopify.com/s/files/1/0431/2891/4074/files/bokidutomi.pdf
    • https://cdn.shopify.com/s/files/1/0452/3101/4045/files/architectural_working_drawings_australia.pdf
    • https://cdn.shopify.com/s/files/1/0433/1136/6309/files/besuxuwemo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rejumaxerufu.pdf
    • https://cdn.shopify.com/s/files/1/0438/0036/3169/files/functional_skills_maths_level_2_past_papers_city_guilds.pdf
    • https://cdn.shopify.com/s/files/1/0429/8106/4853/files/mafoluzo.pdf
    • https://cdn.shopify.com/s/files/1/0433/4583/8232/files/4943466848.pdf
    • https://cdn.shopify.com/s/files/1/0439/6512/0670/files/amharic_bible_81_books.pdf
    • https://cdn.shopify.com/s/files/1/0437/0300/9430/files/fosasuzesa.pdf
    • https://cdn.shopify.com/s/files/1/0428/0107/0247/files/90148737586.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_off0000a38a.bin
03d8c66b858edebae44c2797ec9fb8befb632ac5687ae315b45d43f41b6ee39a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA38A 5740 bytes
font_01_sfnt_off0000b6e5.bin
747a424d2f9d41aeb9b1fb1cbce13e5fbcbf98cbc2724ed07ada89bf25f6f090		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB6E5 10352 bytes

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