Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ebafa8c1b04997e…

MALICIOUS

PDF

38.7 KB Authoring application: Poppler-utils
MD5: 2f53260aaac520f9b62f1638540fcd12 SHA-1: 00607621f7b3587127542eab1b09725aa32faa39 SHA-256: 6ebafa8c1b04997ef58108f8f6fa36045d3d9eda2d2dd18da40a4309685e596a
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, consistent with a phishing or spam campaign. No scripts were extracted, and the document body content is heavily corrupted, limiting further analysis of specific user-facing lures.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://youthening.org/uploads/1/3/0/3/130323160/memivevavalit_sapeba_tavedub_rasadir.pdf
    • http://rockhillpestpros.com/uploads/1/3/0/3/130313178/2546604.pdf
    • http://mariannealeck.com/uploads/1/3/0/4/130483902/1476035.pdf
    • http://kakluchshe.com/uploads/2020/01/28/sebefiwafej.pdf
    • http://marnimigrealtor.com/uploads/1/3/0/4/130483565/d20dbbfcfde.pdf
    • http://pillos.site/uploads/2020/01/28/4441660.pdf
    • http://familytravelsworld.com/uploads/1/3/0/6/130604539/54739fb.pdf
    • http://kori.5525.su/uploads/2020/01/28/46e8864.pdf
    • http://harveyjettmusic.com/uploads/1/3/0/3/130324385/e78d74c31.pdf
    • http://barbariancrossfit.com/uploads/1/3/0/6/130604621/834c26d84569.pdf
    • http://us.momotombochocolatefactory.com/uploads/1/3/0/6/130639552/130639552.html#afterlight+free+apk+ios
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001206.bin
e088953fb80ce2f7baf7bc8cf1ea9942b4fdba02f2f5fb574e939e6771730925		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1206 8024 bytes
font_01_sfnt_off00004d8f.bin
11f6214129dde97c268bb3c793f7f4a7a9ed6241f50b17267f87beec067817d0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4D8F 16848 bytes

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