Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f95468f5e785974…

MALICIOUS

PDF

42.9 KB Created: 2020-08-12 03:03:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 49d00d9f84ccee4d968d40c0a8a2eadc SHA-1: da3a8d335f9d743f002be112010b15bdf08f8629 SHA-256: 3f95468f5e78597493003846de388e8ee98ecbdf33c36f96875fda082e436af1
120 Risk Score

Malware Insights

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

The PDF document contains a mass of external links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=alternative+fuel+vehicles+pdf', suggesting a lure to a malicious site. The presence of numerous PDF links indicates a link farm strategy, likely to distribute malicious content or for SEO poisoning.

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=alternative+fuel+vehicles+pdf
    • http://files.bonbonchiffon.com/uploads/1/3/1/3/131379049/bb4e497e.pdf
    • http://files.thmasc.com/uploads/1/3/1/4/131454603/gawufu-tegeboxufewadus.pdf
    • http://files.cackleberrycastle.com/uploads/1/3/2/6/132696117/gozuribimet-girotivoge-fufozepop.pdf
    • https://cdn.shopify.com/s/files/1/0434/7510/7990/files/80638471916.pdf
    • https://cdn.shopify.com/s/files/1/0430/8385/8080/files/pizigaxufifu.pdf
    • https://cdn.shopify.com/s/files/1/0433/5910/9279/files/goxepotibopigig.pdf
    • https://cdn.shopify.com/s/files/1/0431/7888/5280/files/56319751991.pdf
    • https://cdn.shopify.com/s/files/1/0435/3818/6392/files/24419419944.pdf
    • https://cdn.shopify.com/s/files/1/0432/9019/8180/files/tibafof.pdf
    • https://cdn.shopify.com/s/files/1/0434/4817/2710/files/glados_voice_generator.pdf
    • https://cdn.shopify.com/s/files/1/0432/3291/9720/files/difaso.pdf
    • https://cdn.shopify.com/s/files/1/0429/4947/6518/files/rukasinafipix.pdf
    • https://cdn.shopify.com/s/files/1/0429/2801/3471/files/6880369610.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/646255477.pdf
    • https://cdn.shopify.com/s/files/1/0431/2452/3170/files/discord_how_to_underline.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_off00006801.bin
f51f3e902a98c581112dc06cfcd89ce01f1c66b8a6fc8e7abee9ac41168401ff
pdf-font-stream PDF embedded font (sfnt) at offset 0x6801 5292 bytes
font_01_sfnt_off000079f7.bin
75c3e43e5bca0b04aeb8c42e343792c0091aacc71e42768a2d67f1fd72a5fc0e
pdf-font-stream PDF embedded font (sfnt) at offset 0x79F7 10732 bytes