Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7e01cb76fc4fcc2…

MALICIOUS

PDF

64.6 KB Created: 2020-08-05 18:25:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b695731c11b780cf8237fc6d71c26732 SHA-1: 752f0189558ae868b2f4432e51e03231db078010 SHA-256: c7e01cb76fc4fcc227b41de43eff6ba83a34495024432d51206fbd9e44ed2c6b
150 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The primary malicious URL identified is ttraff.ru, which is used in conjunction with keywords suggesting a lure. While no scripts were extracted, the sheer volume of outbound links, many pointing to potentially benign Shopify domains but ultimately leading to the malicious redirector, indicates a campaign focused on driving traffic to malicious sites, likely for phishing or malware distribution.

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.ru/pify?keyword=malachi+brendan+martin+pdf
    • http://files.jackerjen.com/uploads/1/3/1/1/131164572/5639764.pdf
    • http://files.evolutionshirts.com/uploads/1/3/1/4/131455832/nixepapejaraw.pdf
    • http://files.covenantgrafton.com/uploads/1/3/0/8/130874086/2431001.pdf
    • http://wivuse.rustonpartygalaxy.com/uploads/1/3/2/7/132740362/zapamedujuwe.pdf
    • http://files.fmjhchoir.com/uploads/1/3/0/7/130775645/5680326.pdf
    • http://files.covenantgrafton
    • https://cdn.shopify.com/s/files/1/0433/8401/2956/files/34975226464.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27055139941.pdf
    • https://cdn.shopify.com/s/files/1/0430/3595/1257/files/pudonebiseviwegi.pdf
    • https://cdn.shopify.com/s/files/1/0429/2971/7407/files/psychology_meaning_and_definition.pdf
    • https://cdn.shopify.com/s/files/1/0437/4790/1592/files/canzonetta_sull_aria.pdf
    • https://cdn.shopify.com/s/files/1/0437/3757/9674/files/43258924045.pdf
    • https://cdn.shopify.com/s/files/1/0429/9263/1962/files/5058296796.pdf
    • https://cdn.shopify.com/s/files/1/0428/3029/9292/files/maluxeti.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vujunuvitiwowus.pdf
    • https://cdn.shopify.com/s/files/1/0432/2073/0011/files/85530187150.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_off0000bfc2.bin
3a8dedab3cf48d2f2bb41c4c372658c5ba8fbbcd4e76fc17a3a4291b4fc61402		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBFC2 5364 bytes
font_01_sfnt_off0000d1d5.bin
30bd7f4440ce7951e827def9623c6ababf5e887eff162a88870d19ceafccfcb0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD1D5 10340 bytes

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