Malicious PDF — malware analysis report

Static analysis result for SHA-256 cae5ea0569fbff3b…

MALICIOUS

PDF

42.7 KB Authoring application: Solid Converter PDF
MD5: 30c13aeb45c5d0cd6ff13eb8efecb57e SHA-1: 9f92a2404e0ae79f9b10ba471e5ea8b3c2103957 SHA-256: cae5ea0569fbff3beeb0b99d2da64d32a7ab8276d9c8a362f0eba8a314729f1e
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, a technique commonly used for SEO poisoning or phishing campaigns. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the 'PDF_SEO_LINK_FARM' heuristic strongly indicate a malicious intent to redirect users to potentially harmful content. No scripts were extracted, and the document body contained mostly garbled text, making it difficult to ascertain a more specific purpose beyond link distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • 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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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 http://sunnysidekids.com/uploads/1/3/0/7/130740363/jezilinudidogad-rilitabalepejo-mojisuvuk-kedelude.pdf
    • http://gilpinenterprises.com/uploads/1/3/0/8/130814063/480710.pdf
    • http://innfnite.com/uploads/1/3/0/2/130288926/tidukupigilelonag.pdf
    • http://www.cheapinsurance.reviews/uploads/1/3/0/6/130620705/bafefibes-lekako-pasonejave.pdf
    • http://prypost.com/uploads/1/3/0/6/130604986/8839030.pdf
    • http://downdogz.com/uploads/1/3/0/6/130621473/zigenodefixivof.pdf
    • http://thebuttkickindietitian.com/uploads/1/3/0/6/130603945/losetudow.pdf
    • http://www.inkypus.com/uploads/1/3/0/6/130639750/lurevegazomelotozu.pdf
    • http://agsprime.com/uploads/1/3/0/4/130436049/8198d124.pdf
    • http://spatiquemedicalspa.net/uploads/1/3/0/5/130588999/wisopexetapaz_vulumep.pdf
    • http://dces9.salon225.com/uploads/1/3/0/8/130874269/130874269.html#nephrogenic+diabetes+insipidus+calcium+channel+blocker

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ce3.bin
11eff0542ee112a7a4f3d5fa86892f13f7f7c80edb17354215cea33bb7714487		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CE3 2768 bytes
font_01_sfnt_off0000362d.bin
0346baf0966aa5dca87b3cc05ffe8ab532c4ea6704ec0877ad3d430563832f58		 pdf-font-stream PDF embedded font (sfnt) at offset 0x362D 16236 bytes
font_02_sfnt_off00004e89.bin
3e9aad155960393b0a8beabfe7be5a2e4b2c0dbe4c44719a2290df9bef7c123e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E89 8528 bytes

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