Malicious PDF — malware analysis report

Static analysis result for SHA-256 2beb0ccfb580bbd6…

MALICIOUS

PDF

38.2 KB Created: 2020-08-19 13:51:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 98becff8ed0ccf2368cf85d4c7632200 SHA-1: 54f5e2282a260363098795485e4bf2b367f879e1 SHA-256: 2beb0ccfb580bbd69c2049c311820674236e4d692dac9ffc8edffe66ed99337a
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.cc/pify?keyword=bitlife+game++apk'. Additionally, it features a large number of external PDF links, many hosted on Shopify, suggesting a link farm or SEO poisoning attempt. The ML classifier also strongly flagged this PDF as malicious. The document body contains obfuscated text and the malicious URL, indicating an attempt to disguise the 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=bitlife+game++apk
    • http://files.simplyserene.com.au/uploads/1/3/0/7/130775522/3922064.pdf
    • http://files.poconoavianresearch.org/uploads/1/3/1/3/131379213/xusubabur_fapeniw_xirodoje.pdf
    • http://gijanap.jcprhac.org/uploads/1/3/0/8/130873952/nizewi.pdf
    • http://jazaxop.thepowissettgroup.com/uploads/1/3/1/3/131379685/gefuzokuminarukarof.pdf
    • https://cdn.shopify.com/s/files/1/0428/5064/8223/files/19920183522.pdf
    • https://cdn.shopify.com/s/files/1/0434/0452/5720/files/pisazafuxu.pdf
    • https://cdn.shopify.com/s/files/1/0440/2266/1278/files/the_guide_to_getting_it_on.pdf
    • https://cdn.shopify.com/s/files/1/0432/5064/7202/files/xotomij.pdf
    • https://cdn.shopify.com/s/files/1/0431/4044/8407/files/advanced_node_tapping.pdf
    • https://cdn.shopify.com/s/files/1/0441/3738/2040/files/88224666307.pdf
    • https://cdn.shopify.com/s/files/1/0431/8537/3333/files/gifuzeno.pdf
    • https://cdn.shopify.com/s/files/1/0440/0388/5206/files/1635764759.pdf
    • https://cdn.shopify.com/s/files/1/0432/9409/7576/files/36897928103.pdf
    • https://cdn.shopify.com/s/files/1/0432/1165/3277/files/how_to_use_voicemeeter_with_discord.pdf
    • https://cdn.shopify.com/s/files/1/0432/3010/1668/files/lupavefegopedifimavukodi.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_off00005ad9.bin
be3c0a3f713e11ceed4f8c7af15cb51c45945f871b09ae147b9796644b5f106f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5AD9 5060 bytes
font_01_sfnt_off00006c0b.bin
7f0d791b9390f1de93734d5a632fd4b4eb1511768e60320b56c74771166237ef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C0B 9452 bytes

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