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Windows Analysis Report
OEc88DZdiO.exe

Overview

General Information

Sample Name:OEc88DZdiO.exe
Analysis ID:624271
MD5:339c2a623cb5e745856b3fa600896bd7
SHA1:3f9254e4158a8aa0daffb16914be26a96a4b7e44
SHA256:c34f73a880d41a1a74e636bb2e6f9dd91b9c9fe050870400c4bedb2128b63588
Tags:exeNanoCoreRAT
Infos:

Detection

Nanocore
Score:100
Range:0 - 100
Whitelisted:false
Confidence:100%

Signatures

Found malware configuration
Multi AV Scanner detection for submitted file
Malicious sample detected (through community Yara rule)
Sigma detected: NanoCore
Yara detected AntiVM3
Detected Nanocore Rat
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Antivirus detection for dropped file
Multi AV Scanner detection for dropped file
Yara detected Nanocore RAT
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Machine Learning detection for sample
.NET source code contains potential unpacker
Injects a PE file into a foreign processes
Yara detected Generic Downloader
Machine Learning detection for dropped file
C2 URLs / IPs found in malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Uses schtasks.exe or at.exe to add and modify task schedules
Uses dynamic DNS services
Uses 32bit PE files
Queries the volume information (name, serial number etc) of a device
Yara signature match
Antivirus or Machine Learning detection for unpacked file
May sleep (evasive loops) to hinder dynamic analysis
Checks if Antivirus/Antispyware/Firewall program is installed (via WMI)
Uses code obfuscation techniques (call, push, ret)
Internet Provider seen in connection with other malware
Detected potential crypto function
Sample execution stops while process was sleeping (likely an evasion)
IP address seen in connection with other malware
Contains long sleeps (>= 3 min)
Enables debug privileges
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Found inlined nop instructions (likely shell or obfuscated code)
Installs a raw input device (often for capturing keystrokes)
Sample file is different than original file name gathered from version info
PE file contains strange resources
Drops PE files
Detected TCP or UDP traffic on non-standard ports
Creates a process in suspended mode (likely to inject code)

Classification

  • System is w10x64
  • OEc88DZdiO.exe (PID: 6404 cmdline: "C:\Users\user\Desktop\OEc88DZdiO.exe" MD5: 339C2A623CB5E745856B3FA600896BD7)
    • schtasks.exe (PID: 7048 cmdline: C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UNueWzx" /XML "C:\Users\user\AppData\Local\Temp\tmp8227.tmp MD5: 15FF7D8324231381BAD48A052F85DF04)
      • conhost.exe (PID: 7084 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
    • OEc88DZdiO.exe (PID: 4972 cmdline: {path} MD5: 339C2A623CB5E745856B3FA600896BD7)
    • OEc88DZdiO.exe (PID: 5588 cmdline: {path} MD5: 339C2A623CB5E745856B3FA600896BD7)
  • dhcpmon.exe (PID: 5116 cmdline: "C:\Program Files (x86)\DHCP Monitor\dhcpmon.exe" MD5: 339C2A623CB5E745856B3FA600896BD7)
    • schtasks.exe (PID: 6260 cmdline: C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UNueWzx" /XML "C:\Users\user\AppData\Local\Temp\tmp206B.tmp MD5: 15FF7D8324231381BAD48A052F85DF04)
      • conhost.exe (PID: 6376 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
    • dhcpmon.exe (PID: 3312 cmdline: {path} MD5: 339C2A623CB5E745856B3FA600896BD7)
  • cleanup
{"Version": "1.2.2.0", "Mutex": "21bc8004-9dbe-4096-a374-5331629c", "Group": "Cashout Edu", "Domain1": "aztemglobaltradltd.ddns.net", "Domain2": "91.193.75.132", "Port": 7189, "KeyboardLogging": "Enable", "RunOnStartup": "Enable", "RequestElevation": "Disable", "BypassUAC": "Disable", "ClearZoneIdentifier": "Enable", "ClearAccessControl": "Disable", "SetCriticalProcess": "Disable", "PreventSystemSleep": "Enable", "ActivateAwayMode": "Disable", "EnableDebugMode": "Disable", "RunDelay": 0, "ConnectDelay": 4000, "RestartDelay": 5000, "TimeoutInterval": 5000, "KeepAliveTimeout": 30000, "MutexTimeout": 5000, "LanTimeout": 2500, "WanTimeout": 8000, "BufferSize": "ffff0000", "MaxPacketSize": "0000a000", "GCThreshold": "0000a000", "UseCustomDNS": "Enable", "PrimaryDNSServer": "8.8.8.8", "BackupDNSServer": "8.8.4.4"}
SourceRuleDescriptionAuthorStrings
0000000E.00000002.562461280.0000000005690000.00000004.08000000.00040000.00000000.sdmpNanocore_RAT_Gen_2Detetcs the Nanocore RATFlorian Roth
  • 0xe75:$x1: NanoCore.ClientPluginHost
  • 0xe8f:$x2: IClientNetworkHost
0000000E.00000002.562461280.0000000005690000.00000004.08000000.00040000.00000000.sdmpNanocore_RAT_Feb18_1Detects Nanocore RATFlorian Roth
  • 0xe75:$x2: NanoCore.ClientPluginHost
  • 0x1261:$s3: PipeExists
  • 0x1136:$s4: PipeCreated
  • 0xeb0:$s5: IClientLoggingHost
0000000E.00000002.562461280.0000000005690000.00000004.08000000.00040000.00000000.sdmpMALWARE_Win_NanoCoreDetects NanoCoreditekSHen
  • 0xe38:$x2: NanoCore.ClientPlugin
  • 0xe75:$x3: NanoCore.ClientPluginHost
  • 0xe5a:$i1: IClientApp
  • 0xe4e:$i2: IClientData
  • 0xe29:$i3: IClientNetwork
  • 0xec3:$i4: IClientAppHost
  • 0xe65:$i5: IClientDataHost
  • 0xeb0:$i6: IClientLoggingHost
  • 0xe8f:$i7: IClientNetworkHost
  • 0xea2:$i8: IClientUIHost
  • 0xed2:$i9: IClientNameObjectCollection
  • 0xef7:$i10: IClientReadOnlyNameObjectCollection
  • 0xe41:$s1: ClientPlugin
  • 0x177c:$s1: ClientPlugin
  • 0x1789:$s1: ClientPlugin
  • 0x11f9:$s6: get_ClientSettings
  • 0x1249:$s7: get_Connected
0000000E.00000002.546310350.0000000000402000.00000040.00000400.00020000.00000000.sdmpNanocore_RAT_Gen_2Detetcs the Nanocore RATFlorian Roth
  • 0xff8d:$x1: NanoCore.ClientPluginHost
  • 0xffca:$x2: IClientNetworkHost
  • 0x13afd:$x3: #=qjgz7ljmpp0J7FvL9dmi8ctJILdgtcbw8JYUc6GC8MeJ9B11Crfg2Djxcf0p8PZGe
0000000E.00000002.546310350.0000000000402000.00000040.00000400.00020000.00000000.sdmpJoeSecurity_NanocoreYara detected Nanocore RATJoe Security