Malicious PDF — malware analysis report

Static analysis result for SHA-256 8967ac8136744e8e…

MALICIOUS

PDF

35.1 KB Authoring application: pstoedit
MD5: b7ae7d044cd7284b8af8d92ef5f37d27 SHA-1: 924a4e9b2c36692f6f09ea5ad3cadad8c6df6da4 SHA-256: 8967ac8136744e8e719a0108ab00a1e9846f641c156bac1a479909bd3febf923
150 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm designed to redirect users to potentially malicious content. The ML_NYX_PDF_MALICIOUS and ClamAV detections further support its malicious nature. The embedded URLs are the primary indicators of compromise, likely leading to phishing pages or malware downloads.

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://gypsydenisse.com/uploads/1/3/0/7/130740342/sikeralo_wosarafegexum_namedavom.pdf
    • http://thevisualnarrative.com/uploads/1/3/0/2/130272360/ronotelojis-lunajuxofopoge-kinonebetileba-satuwurumiboge.pdf
    • http://mirrorinyourattic.com/uploads/1/3/0/6/130620441/81645.pdf
    • http://shop.akcesoriacorp.com/uploads/1/3/0/5/130590538/pejogemevijaren-povase-tofepixu-rodelezejilu.pdf
    • http://banriapharma.com/uploads/1/3/0/2/130287886/dc39e8a5d.pdf
    • http://thephapapp.com/uploads/1/3/0/4/130476076/b13077934a7.pdf
    • http://skinnytiffy.com/uploads/1/3/0/5/130541402/2511888.pdf
    • http://qualisplus.com/uploads/1/3/0/7/130775969/3661708.pdf
    • http://wineandwhiskey.net/uploads/1/3/0/5/130551330/mugozefi.pdf
    • http://zexe.blendsa.com/uploads/2020/01/28/1690497.pdf
    • http://new-england-marketing.com/uploads/1/3/0/4/130477663/muvusefubisapeb_potukojevubomu.pdf
    • http://trippyprints.art/uploads/1/3/0/2/130271234/sibivoluvu.pdf
    • http://nicolitulk.com.au/uploads/1/3/0/5/130551253/130551253.html#aquaponics+farming+kerala

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030dd.bin
f3842a1adce689f3dca87a6735f05ad84d283e53afe9b27e1eccceb39384e4e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x30DD 8044 bytes

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