Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c49809a6a81954f…

MALICIOUS

PDF

32.0 KB Created: 2020-11-03 02:32:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 35f023a7ab6028ee9351dda0ef8436d2 SHA-1: 4081ae2bea84d243f396934ace5c308b366b719a SHA-256: 9c49809a6a81954f22f9646890b57db387429f6ba470b6ddbf55a86d38126aa9
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous embedded links, many of which point to link farms and redirector infrastructure. The document body includes a keyword search for 'My talking angela apkhome' and a URL that appears to be part of a malicious redirector. This suggests the document is designed to drive traffic to malicious sites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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.club/123?keyword=my+talking+angela+apkhome
    • https://dapamokosow.weebly.com/uploads/1/3/4/3/134337633/fuvomoralawakow.pdf
    • https://cdn-cms.f-static.net/uploads/4392668/normal_5f8f595515b39.pdf
    • https://cdn-cms.f-static.net/uploads/4385617/normal_5f8e94fd3bfd7.pdf
    • https://cdn-cms.f-static.net/uploads/4374021/normal_5f9a394624ead.pdf
    • https://cdn-cms.f-static.net/uploads/4366350/normal_5f896d0020ef2.pdf
    • https://naxedomabaxa.weebly.com/uploads/1/3/1/6/131606472/wujadakisobut_kelezu_vorewofevul_sibenofavitigig.pdf
    • https://vomediwanuxorat.weebly.com/uploads/1/3/4/3/134327005/7337054.pdf
    • https://cdn-cms.f-static.net/uploads/4426571/normal_5f979a5727cd0.pdf
    • https://pumowurunumig.weebly.com/uploads/1/3/2/7/132740285/sixasunusimu_vezaninume.pdf
    • https://rojusonevupa.weebly.com/uploads/1/3/0/8/130814232/powaxorisavasar.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0428/9737/5388/files/57582543216.pdf
    • https://s3.amazonaws.com/xajowu/dolusulilofora.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000050fb.bin
cb9a77a1f143e7586865e0442d5a852cbd8547aa08ca3660f05479be5abcb7dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x50FB 5132 bytes
font_01_sfnt_off00006265.bin
250c177d329a6bbf4b26a76a2972cb005ae36f6fe0466c55290785aab1f740a7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6265 10388 bytes

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