Malicious PDF — malware analysis report

Static analysis result for SHA-256 df8727e7fcf45bb2…

MALICIOUS

PDF

48.6 KB Created: 2020-08-07 13:41:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 96db649d53b4922e5fbc561dddd0958e SHA-1: 565877808d6f955fd4906bfe6ee129c26578d9a8 SHA-256: df8727e7fcf45bb28caeb308efe22fdf7d7e32144c642e2fd42890d9eb2468d6
150 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.cc/pify?keyword=data+warehousing+etl+toolkit+pdf'. This suggests the document is designed to redirect users to malicious sites, likely for phishing or malware distribution. The presence of a link farm further supports this malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=data+warehousing+etl+toolkit+pdf
    • http://files.nicolloabe.com/uploads/1/3/1/8/131857049/wumogo_pevakut_lujalir.pdf
    • http://lopusisuw.benefit-marketingblog.com/uploads/1/3/2/6/132682787/05a93.pdf
    • http://files.eastsidefamilytherapy.net/uploads/1/3/0/7/130775371/9186102.pdf
    • https://cdn.shopify.com/s/files/1/0434/1301/2636/files/scp_ntf_mod.pdf
    • https://cdn.shopify.com/s/files/1/0433/0638/5573/files/80625166467.pdf
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/wexowa.pdf
    • https://cdn.shopify.com/s/files/1/0432/8698/6908/files/buwarovupogifakon.pdf
    • https://cdn.shopify.com/s/files/1/0431/2639/0933/files/tazulexokabejibakusopin.pdf
    • https://cdn.shopify.com/s/files/1/0433/3902/2494/files/87051448504.pdf
    • https://cdn.shopify.com/s/files/1/0434/4378/1792/files/30019875640.pdf
    • https://cdn.shopify.com/s/files/1/0434/6278/7237/files/wekagomujurufaxanelufulu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/34993807018.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a76.bin
6669fa9140b459ff226afe9cc0e46b3fb4e354bd7270183a6fff963576fd482b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A76 5456 bytes
font_01_sfnt_off00007d1f.bin
aeee3060b0e3a72fc76ef01867b6011544fb754d266e1550486cc5464ab1f3fe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D1F 10380 bytes
font_02_sfnt_off0000a0dd.bin
fb27248ec02d804caa0ce6a8dd06a8f0f211157336bc50f6c382585ff5fe3da3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA0DD 16084 bytes

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