Malicious PDF — malware analysis report

Static analysis result for SHA-256 f17d0df9d136240f…

MALICIOUS

PDF

46.1 KB Created: 2020-08-03 00:55:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7f9d0ff18d144826b1e873ac1b6f2ef5 SHA-1: 78ddf83b95d2a6774803cda1136601ddf06a1b96 SHA-256: f17d0df9d136240fb8e917b36a0bef53a1b5795de71ead29d0e703b5e0544eec
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link and a link farm, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains the string 'Minecraft folder mac' and a URL that matches the redirector link. This suggests the document is designed to trick users into visiting a malicious site by posing as helpful information.

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=minecraft+folder+mac
    • http://files.aphroditesclosetalameda.com/uploads/1/3/0/7/130776111/6184674.pdf
    • http://files.primeadhesives.com/uploads/1/3/1/8/131871439/9278025.pdf
    • http://files.district13masons.org/uploads/1/3/1/1/131164198/2533956.pdf
    • https://cdn.shopif
    • https://cdn.shopify.com/s/files/1/0431/1570/8580/files/rikikefoli.pdf
    • https://cdn.shopify.com/s/files/1/0432/2859/4336/files/34150456447.pdf
    • https://cdn.shopify.com/s/files/1/0430/6799/8362/files/rapaledofosivewob.pdf
    • https://cdn.shopify.com/s/files/1/0430/6544/2457/files/11688453697.pdf
    • https://cdn.shopify.com/s/files/1/0440/8619/8424/files/5947300305.pdf
    • https://cdn.shopify.com/s/files/1/0430/4168/5665/files/tefusini.pdf
    • https://cdn.shopify.com/s/files/1/0433/5036/0232/files/macys_day_parade_lyric.pdf
    • https://cdn.shopify.com/s/files/1/0434/9784/8996/files/50880005189.pdf
    • https://cdn.shopify.com/s/files/1/0429/7841/0655/files/97081860842.pdf
    • https://cdn.shopify.com/s/files/1/0432/9121/3988/files/difemuwu.pdf
    • https://cdn.shopify.com/s/files/1/0430/9889/8592/files/17722539263.pdf
    • https://cdn.shopify.com/s/files/1/0437/5298/0641/files/najipomusu.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_off0000763a.bin
ac9748b1f4d6806c12304f09db5bd79ff70928938c2b247b47d42741c9daec1f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x763A 4992 bytes
font_01_sfnt_off0000872e.bin
868955797f8a6f8bdb8edf8b37010938d984d1d6bd5474976517cabcb81ab610		 pdf-font-stream PDF embedded font (sfnt) at offset 0x872E 10664 bytes

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