Malicious PDF — malware analysis report

Static analysis result for SHA-256 c223ae6911a7b6f2…

MALICIOUS

PDF

42.8 KB Created: 2020-08-19 19:48:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b46f8e23afd36ceefb5d522b39e67885 SHA-1: f655437afba8ef0cdbdac68051e11ed2dfa6ca45 SHA-256: c223ae6911a7b6f2c4a80bc528ecfea12651651a1f6faa0556a53a28370b0230
150 Risk Score

Malware Insights

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

The PDF contains numerous links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Bed wars pc gratis' and the malicious URL, suggesting a lure for users seeking free software. The presence of many Shopify-hosted PDF links indicates a potential SEO poisoning or link farm tactic to obscure the malicious destination. The ML classifier also strongly flagged this PDF as malicious.

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.com/pify?keyword=bed+wars++pc+gratis
    • http://veruku.hartmanreserve.org/uploads/1/3/1/3/131379608/malamem_polakula.pdf
    • https://cdn.shopify.com/s/files/1/0434/0364/0990/files/sovojubinali.pdf
    • https://cdn.shopify.com/s/files/1/0430/4207/8877/files/sugujubakamabokowaz.pdf
    • https://cdn.shopify.com/s/files/1/0431/4274/2167/files/descargar_administracion_financiera_contemporanea_moyer.pdf
    • https://cdn.shopify.com/s/files/1/0431/7990/1096/files/72987423495.pdf
    • https://cdn.shopify.com/s/files/1/0429/0510/8636/files/28788910032.pdf
    • https://cdn.shopify.com/s/files/1/0438/7841/6539/files/twenty_eight_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0434/4745/1798/files/greek_philosophers_list.pdf
    • https://cdn.shopify.com/s/files/1/0432/9432/6949/files/alternaria_brassicicola.pdf
    • https://cdn.shopify.com/s/files/1/0430/7556/7777/files/werupejivalomegaxikasev.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_off00005d02.bin
50645734787e319f6a9e23bee8f3fbceb05f1274721fd9cbffd5fdd14a525ef9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D02 4924 bytes
font_01_sfnt_off00006de4.bin
1dde29d35245bdf226cdabf6186803c35c963b057271bbe29c433f222fe8b75d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DE4 10192 bytes
font_02_sfnt_off000090bb.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x90BB 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.