Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6b47cfe3bd0798f…

MALICIOUS

PDF

59.9 KB Created: 2020-08-20 06:50:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6568e727dbee75ea77115df560c571a0 SHA-1: 1103832ce880fd84fa49e03ed65d3b21936a4ad4 SHA-256: c6b47cfe3bd0798f4c40fe5cd07a84500b00566a589c049908636b5ea09f15b8
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external PDF files hosted on various domains, including a known malicious redirector. The document body text, though heavily obfuscated, contains a URL that appears to be part of a lure related to 'copy character sheet roll20'. The primary malicious URL identified is a redirector, suggesting a phishing or malware distribution attempt.

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=copy+character+sheet+roll20
    • http://wagula.hawkmoth.org/uploads/1/3/0/7/130775413/044d139e748a1.pdf
    • http://files.infusionnursesoforegon.com/uploads/1/3/0/8/130814353/2020443.pdf
    • http://files.good-chi-fengshui.com/uploads/1/3/1/6/131606121/9993728.pdf
    • http://files.statebirdtogo.com/uploads/1/3/2/7/132710687/a1b067.pdf
    • https://cdn.shopify.com/s/files/1/0436/6965/1606/files/bose_soundlink_micro_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/3407/5558/files/baby_girl_pic_free.pdf
    • https://cdn.shopify.com/s/files/1/0434/6180/4197/files/7639929461.pdf
    • https://cdn.shopify.com/s/files/1/0434/9421/1750/files/criterios_de_sepsis_2020.pdf
    • https://cdn.shopify.com/s/files/1/0437/0461/5066/files/pivowikitasepejafo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/31968244380.pdf
    • https://cdn.shopify.com/s/files/1/0428/7702/6463/files/21091774338.pdf
    • https://cdn.shopify.com/s/files/1/0435/5896/1320/files/minonuxewi.pdf
    • https://cdn.shopify.com/s/files/1/0431/5650/4744/files/24069828531.pdf
    • https://cdn.shopify.com/s/files/1/0430/6544/2455/files/51216027665.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_off0000abe7.bin
e49c4a75da32dc357497e7aa3801458d28b01117c412d47e32daffa6ee63c8e8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xABE7 5300 bytes
font_01_sfnt_off0000bde9.bin
464f53db934076a06c4facdc6bd4fb9f326eb9c814bb1fab6ccbb430421742b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBDE9 10744 bytes

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