Malicious PDF — malware analysis report

Static analysis result for SHA-256 0168d5f40045da78…

MALICIOUS

PDF

35.7 KB Authoring application: Nitro PDF
MD5: e0e229b6a7d130e71c86e0b0f5e4895a SHA-1: e5e686ef2f9b48ed862ca0893b956138f0075a06 SHA-256: 0168d5f40045da781acfa969e2890b6f1b54aa33d28c781f9457030bd2903e24
152 Risk Score

Malware Insights

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

The PDF document was flagged by multiple heuristics, including ClamAV and an ML classifier, for malicious content. It contains a large number of embedded URLs pointing to external PDF files, indicating a link farm likely used for SEO poisoning or to distribute further malicious content. The document body contains garbled text related to 'Cardiac muscle troponin' but lacks clear instructional content.

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://narcsandco.com/uploads/1/3/0/5/130588289/gopure-xiwiromibigaja.pdf
    • http://walkrunleap.com/uploads/1/3/0/6/130620159/vimovogef-lofifimazebeni-tapavazupuga-jugepe.pdf
    • http://nelsononline.net/uploads/1/3/0/7/130740218/vepori_fesod_gufimidaworim.pdf
    • http://culturalinnovationgroup.org/uploads/1/3/0/6/130640081/fe725d407f1d6aa.pdf
    • http://kofc869.org/uploads/1/3/0/7/130776257/4490503.pdf
    • http://uxsos.com/uploads/1/3/0/5/130588564/bokalitifovunu.pdf
    • http://rumseytownhall.com/uploads/1/3/0/6/130621995/dixudunog.pdf
    • http://narrowbandingcoordination.com/uploads/1/3/0/7/130739656/wonudipelu-mefajis.pdf
    • http://monicaariasmiranda.com/uploads/1/3/0/6/130604982/sopuzulowute.pdf
    • http://x-statics.com/uploads/1/3/0/5/130551564/4669765.pdf
    • http://beingself-centered.com/uploads/1/3/0/6/130639343/130639343.html#cardiac+muscle+troponin

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003622.bin
a47707ddec3ca85f82329f685832ec3faf766534ea1a67b07af2a20ef98e5c3b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3622 7672 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.