Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0f50d3ba2276f9c…

MALICIOUS

PDF

48.2 KB Created: 2020-07-26 20:40:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bf129001df7f368614c888fba3374ddc SHA-1: 944c2d59a294328d3ddbe569e3a74dc5fa17538c SHA-256: c0f50d3ba2276f9ccbd3d7dd64d0a7afe74c2746a31e411ef47aae06ca7e8425
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, which is characteristic of SEO link farming. One critical heuristic identified a link to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, appears to be related to a 'lineage 2 revolution power leveling guide', suggesting a lure to attract users interested in such content. The primary attack pattern involves redirecting users to malicious infrastructure.

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=lineage+2+revolution+power+leveling+guide
    • http://files.create-diy-online.com/uploads/1/3/0/7/130739595/abbcd2f4.pdf
    • http://files.allergysmart.org/uploads/1/3/1/1/131163914/892849.pdf
    • http://files.doylestownbotox.com/uploads/1/3/2/7/132712358/xikofuzudevot.pdf
    • http://files.ontheroadwithrobert.com/uploads/1/3/1/8/131871569/solebuda.pdf
    • http://files.youthactionmemphis.com/uploads/1/3/1/6/131607321/kinuvexenugawagewefa.pdf
    • http://files.doylestownbotox.com/uploads/1/3/2/7/132712358/xikofuzudevot.p
    • https://cdn.shopify.com/s/files/1/0431/3153/5524/files/jefesinuzufa.pdf
    • https://cdn.shopify.com/s/files/1/0431/8828/9694/files/8341264738.pdf
    • https://cdn.shopify.com/s/files/1/0436/8665/8213/files/62336564995.pdf
    • https://cdn.shopify.com/s/files/1/0434/4119/3110/files/fudewopabufav.pdf
    • https://cdn.shopify.com/s/files/1/0437/9800/3874/files/83122493276.pdf
    • https://cdn.shopify.com/s/files/1/0438/7792/5019/files/xuvolenagekurubub.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xaxigeruver.pdf
    • https://cdn.shopify.com/s/files/1/0432/5244/9435/files/32542893306.pdf
    • https://cdn.shopify.com/s/files/1/0433/6992/2714/files/jumefogomolel.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/1589944702.pdf
    • https://cdn.shopify.com/s/files/1/0427/5693/1751/files/57851564130.pdf
    • https://cdn.shopify.com/s/files/1/0433/7677/1224/files/xusajipe.pdf
    • https://cdn.shopify.com/s/files/1/0438/7602/4475/files/gakepuv.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/birizakidunupujudexi.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_off00007fb9.bin
f7471f4e1b322b0266dcc431adfadd633d5c44d37879c22805800924f61c36ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FB9 5056 bytes
font_01_sfnt_off00009108.bin
3c57e9da6a14be6b78d59684eae7ce6ab4119494ceb34b6e8aa0a7b8222b1e20		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9108 10028 bytes

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