Malicious PDF — malware analysis report

Static analysis result for SHA-256 79d287cd4ce6ba63…

MALICIOUS

PDF

44.6 KB Created: 2020-08-02 19:59:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7c6cd1a2aca40b0a9db48dd54ccf501d SHA-1: 69b28f59a6805c162285c8044255a42e4b39ff21 SHA-256: 79d287cd4ce6ba63ca6ce2ea8c44bf15fc6be135d87b554aa999069e2ec10930
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=ww+monk+guide'. Additionally, it exhibits a PDF link farm heuristic, with numerous links to PDFs hosted on Shopify. The document body, though heavily obfuscated, contains the malicious URL, suggesting the primary intent is to redirect users to malicious infrastructure. 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.cc/pify?keyword=ww+monk+guide
    • http://files.crafterafterhours.com/uploads/1/3/1/1/131164002/kadirorepaji.pdf
    • http://files.peretzadventures.com/uploads/1/3/1/4/131438392/6235137.pdf
    • http://files.kaiderlaw.com/uploads/1/3/0/8/130873708/doralatope_wobos.pdf
    • http://files.fivetimesfamous.com/uploads/1/3/0/8/130813931/1bd6881d80.pdf
    • http://files.asnapoftime.com/uploads/1/3/2/7/132712127/7034763.pdf
    • http://files.fivetimesfamous.co
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/83390791822.pdf
    • https://cdn.shopify.com/s/files/1/0433/9122/1923/files/48165939015.pdf
    • https://cdn.shopify.com/s/files/1/0430/6056/0021/files/fubanipekevegigujudowek.pdf
    • https://cdn.shopify.com/s/files/1/0434/9480/1568/files/mupiraboginifuvowosaxu.pdf
    • https://cdn.shopify.com/s/files/1/0427/6515/6508/files/62053814146.pdf
    • https://cdn.shopify.com/s/files/1/0433/8463/5544/files/powomaliguge.pdf
    • https://cdn.shopify.com/s/files/1/0430/3467/3305/files/88472004797.pdf
    • https://cdn.shopify.com/s/files/1/0430/6511/4775/files/nagoda.pdf
    • https://cdn.shopify.com/s/files/1/0434/9784/8996/files/xopegikirezolog.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_off00007222.bin
2f541fc37194a40ca9a2d580e323fed97ac94138d83d9c8bf6f4484039ebf8dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7222 4796 bytes
font_01_sfnt_off00008285.bin
fb5cc88900f4f70cefe8e409d0b59762e40708892db0153c82f8e6f5ab481843		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8285 10340 bytes

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