Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed1101d0b4eab60a…

MALICIOUS

PDF

154.6 KB Created: 2020-07-31 09:31:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0420c8468f6479f38c4d1464bf15a22c SHA-1: 174a4cd5893719f23a1b6bb2f4244b75804f3cc6 SHA-256: ed1101d0b4eab60a1b29942bf2cba2da798b25fcda0233ea50db176d3051805c
90 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.cc'. This indicates the document is designed to lure users to a potentially harmful website. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, and the document body was heavily truncated and unreadable, but the presence of the malicious URL is sufficient evidence for this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 2

  • 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.
  • 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=esclerosis+multiple+recurrente+remitente+pdf
    • http://files.goodztingboutique.com/uploads/1/3/2/6/132696104/fafeben-kebubudofi-jirum-davavatel.pdf
    • http://files.crossroadschurchsc.org/uploads/1/3/0/7/130738914/18aee.pdf
    • http://files.nzethnicwomen.org/uploads/1/3/0/7/130775145/xugeroputa-walosaxo.pdf
    • http://files.ammoniteyarns.co.uk/uploads/1/3/0/9/130969826/3a2a859987586e2.pdf
    • http://files.heartpieces.net/uploads/1/3/1/3/131379749/3776242.pdf
    • https://cdn.shopify.com/s/files/1/0434/7104/4770/files/wegat.pdf
    • https://cdn.shopify.com/s/files/1/0432/9524/4452/files/wisuriserubopusaredif.pdf
    • https://cdn.shopify.com/s/files/1/0430/3428/0090/files/73591682403.pdf
    • https://cdn.shopify.com/s/files/1/0429/5393/2966/files/vilofuxitowavonarilazaz.pdf
    • https://cdn.shopify.com/s/files/1/0431/5529/2321/files/90033509177.pdf
    • https://cdn.shopify.com/s/files/1/0434/0681/9493/files/zemumuxixuresur.pdf
    • https://cdn.shopify.com/s/files/1/0439/7747/4206/files/tigudini.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57355052908.pdf
    • https://cdn.shopify.com/s/files/1/0430/5698/8311/files/93669971092.pdf
    • https://cdn.shopify.com/s/files/1/0436/5372/6358/files/53376721981.pdf
    • https://cdn.shopify.com/s/files/1/0434/5652/8537/files/90863640390.pdf
    • https://cdn.shopify.com/s/files/1/0436/2996/9561/files/xuliwe.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85286147205.pdf
    • https://cdn.shopify.com/s/files/1/0433/5271/9515/files/wemabizegarebak.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_off00022625.bin
9fb464dbc74c07ec9150c635424b2da0692c2e86509a5617290baed0046830fe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x22625 4928 bytes
font_01_sfnt_off000236c7.bin
d626bea4ad84a119549fc83e8118b887e5c07ed479abc46f280cae93876a47ec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x236C7 10920 bytes

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