Malicious PDF — malware analysis report

Static analysis result for SHA-256 15c2357d0a18101d…

MALICIOUS

PDF

34.8 KB Authoring application: pdf-parser
MD5: a6da55cd8207b5bc0622992bead3e3bc SHA-1: 2a3384d5fb0a30682edb29a128d232712a3909b4 SHA-256: 15c2357d0a18101da1a9743138083edce0917d6d6fce5f3f496b7173177b23dd
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to other PDF files, a technique commonly used for SEO poisoning or to redirect users to malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution. The embedded URLs are the primary indicators of compromise.

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://mwoc.us/uploads/1/3/0/5/130551524/2d07e3d.pdf
    • http://metricsteelnyc.com/uploads/1/3/0/5/130589007/pukun.pdf
    • http://mrmojo.com.br/uploads/1/3/0/4/130488616/gudanobufesokuno.pdf
    • http://insciteillinois.org/uploads/1/3/0/4/130490776/3022047.pdf
    • http://bdruken.weebly.com/uploads/1/3/0/5/130540420/mukaxumemo.pdf
    • http://creatingamindfullife.com/uploads/1/3/0/6/130639409/9403141.pdf
    • http://kerrycannon.com/uploads/1/3/0/2/130289732/620076.pdf
    • http://milotheclown.com/uploads/1/3/0/2/130271017/welipadobivu_midapuzug_pejerox.pdf
    • http://benjamindcrowe.com/uploads/1/3/0/5/130551794/241102.pdf
    • http://doicontrol.com/uploads/1/3/0/5/130551125/gujedo_kuxudujosu_rolewejig_gelewilowuvuro.pdf
    • http://baloyatees.com/uploads/1/3/0/5/130589050/7d17267a82.pdf
    • http://statewidefacilitiesservices.com/uploads/1/3/0/5/130543207/kefugesixemivazexos.pdf
    • http://agedcarecertiii.com.au/uploads/1/3/0/6/130639593/180fe.pdf
    • http://bangkokplasticsurgery.net/uploads/1/3/0/6/130620389/mogewokobon.pdf
    • http://anal-teens.fun/uploads/2020/01/28/fafebo-lixululakavi-pines-riwamiz.pdf
    • http://nsvbcamp.weebly.com/uploads/1/3/0/5/130541950/55a4c14.pdf
    • http://iglesiamulticulturalwestside.com/uploads/1/3/0/2/130287895/tefif.pdf
    • http://myynti.zupticket.com/uploads/1/3/0/6/130604996/zurufa.pdf
    • http://michaudwellness.com/uploads/1/3/0/5/130590051/130590051.html#connecting+arabic+letters+practice+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000014d4.bin
dc7cb134c51de58f0b309c45f112f16e0ed8cf07d984655f82d6876fcbb5ccc2
pdf-font-stream PDF embedded font (sfnt) at offset 0x14D4 7256 bytes