Malicious PDF — malware analysis report

Static analysis result for SHA-256 0701937db408c047…

MALICIOUS

PDF

41.8 KB Authoring application: Pdftk
MD5: 173b94d7ba766a713a6730ab7e35c8d6 SHA-1: 474c3015a04accf2a0eafef3526f8de88ea0e883 SHA-256: 0701937db408c0473a4d8d3843a70eb0a35a96930c3929bf1a22bd450b3fdd11
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic, which strongly suggests a phishing or SEO manipulation scheme. The ML_NYX_PDF_MALICIOUS and CLAMAV_DETECTION heuristics further confirm its malicious nature. While no scripts were explicitly extracted, the embedded URLs are the primary indicators of malicious activity, likely leading to further compromise or information theft.

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://brumbleon.com/uploads/1/3/0/2/130289179/2696170.pdf
    • http://precisionfashioninstrument.com/uploads/1/3/0/7/130775182/573b87425afd.pdf
    • http://airconditioningguam.com/uploads/1/3/0/6/130620150/vakuxo-pafitig-fumawigewidewuk-sosaw.pdf
    • http://bartsbullets.com/uploads/1/3/0/6/130621148/kobudefexase_kakijemimopu.pdf
    • http://airbrushinggourds.com/uploads/1/3/0/6/130639785/dejefod.pdf
    • http://menthings.net/uploads/1/3/0/6/130621075/0382c2ce.pdf
    • http://davesbackyardbees.com/uploads/1/3/0/6/130604658/4fd8130.pdf
    • http://citywidevalet.com/uploads/1/3/0/6/130605094/gedaxeloma_jiremoka_zokaro.pdf
    • http://hostmaster.captivatephoto.com/uploads/1/3/0/6/130620882/8671927.pdf
    • http://theparispapers.net/uploads/1/3/0/7/130739020/jodipepat.pdf
    • http://servpro-philippines.com/uploads/1/3/0/8/130813369/razijif.pdf
    • http://tincidunt.porta.us/uploads/1/3/0/2/130287845/gizuzexi.pdf
    • http://virtualassistant.shop/uploads/1/3/0/5/130543020/zatered_rorazute_miliw_lobuxow.pdf
    • http://webmail.captainpaulsdogs.com/uploads/1/3/0/6/130620849/3464517.pdf
    • http://vintagelatina.shop/uploads/1/3/0/2/130272636/0106851430667.pdf
    • http://namdalseidmusikklag.no/uploads/1/3/0/3/130379528/3992959.pdf
    • http://racje.slpny.com/uploads/1/3/0/5/130552097/130552097.html#human+resource+management+pdf+dessler

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004705.bin
ca8734538a8973eccd297355e6fd5387a86632947043a58662edb1d250c20542		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4705 8364 bytes

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