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Analysis Report f908098a_by_Libranalysis

Overview

General Information

Sample Name:f908098a_by_Libranalysis (renamed file extension from none to exe)
Analysis ID:403331
MD5:f908098af6b73a5ea4081a3474030196
SHA1:7c92b17c6e2ede3e3bee94c41603795c93d53c89
SHA256:aeb4339ff4e4d6f8249236e1280111324d84920c23a169cffc67577ab9f69217
Infos:

Most interesting Screenshot:

Detection

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

Signatures

Detected Nanocore Rat
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Nanocore RAT
.NET source code contains potential unpacker
.NET source code contains very large strings
C2 URLs / IPs found in malware configuration
Hides threads from debuggers
Machine Learning detection for sample
Potential time zone aware malware
Binary contains a suspicious time stamp
Contains capabilities to detect virtual machines
Creates a process in suspended mode (likely to inject code)
Enables debug privileges
Program does not show much activity (idle)
Queries the volume information (name, serial number etc) of a device
Sample execution stops while process was sleeping (likely an evasion)
Sample file is different than original file name gathered from version info
Yara signature match

Classification

Startup

  • System is w10x64
  • f908098a_by_Libranalysis.exe (PID: 6652 cmdline: 'C:\Users\user\Desktop\f908098a_by_Libranalysis.exe' MD5: F908098AF6B73A5EA4081A3474030196)
    • backgroundTaskHost.exe (PID: 6724 cmdline: 'C:\Windows\system32\backgroundTaskHost.exe' -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca MD5: B7FC4A29431D4F795BBAB1FB182B759A)
    • cmd.exe (PID: 6948 cmdline: 'C:\Windows\System32\cmd.exe' /c timeout 1 MD5: F3BDBE3BB6F734E357235F4D5898582D)
      • conhost.exe (PID: 6964 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
      • timeout.exe (PID: 7004 cmdline: timeout 1 MD5: 121A4EDAE60A7AF6F5DFA82F7BB95659)
    • taskhostw.exe (PID: 7104 cmdline: taskhostw.exe None MD5: CE95E236FC9FE2D6F16C926C75B18BAF)
    • svchost.exe (PID: 7116 cmdline: C:\Windows\System32\svchost.exe -k netsvcs -p MD5: 32569E403279B3FD2EDB7EBD036273FA)
    • svchost.exe (PID: 6596 cmdline: C:\Windows\System32\svchost.exe -k netsvcs -p MD5: 32569E403279B3FD2EDB7EBD036273FA)
  • cleanup

Malware Configuration

Threatname: NanoCore

{"Version": "1.2.2.0", "Mutex": "b3bfe601-8f28-4397-a972-90d172cf", "Group": "Default", "Domain1": "fedex.itemdb.com", "Domain2": "uspslabel.itemdb.com", "Port": 1090, "RunOnStartup": "Enable", "RequestElevation": "Disable", "BypassUAC": "Disable", "ClearZoneIdentifier": "Enable", "ClearAccessControl": "Disable", "SetCriticalProcess": "Disable", "PreventSystemSleep": "Disable", "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"}

Yara Overview

Memory Dumps

SourceRuleDescriptionAuthorStrings
0000001F.00000002.746272772.0000000000402000.00000040.00000001.sdmpNanocore_RAT_Gen_2Detetcs the Nanocore RATFlorian Roth
  • 0xff8d:$x1: NanoCore.ClientPluginHost
  • 0xffca:$x2: IClientNetworkHost
  • 0x13afd:$x3: #=qjgz7ljmpp0J7FvL9dmi8ctJILdgtcbw8JYUc6GC8MeJ9B11Crfg2Djxcf0p8PZGe
0000001F.00000002.746272772.0000000000402000.00000040.00000001.sdmpJoeSecurity_NanocoreYara detected Nanocore RATJoe Security
    0000001F.00000002.746272772.0000000000402000.00000040.00000001.sdmpNanoCoreunknown Kevin Breen <kevin@techanarchy.net>
    • 0xfcf5:$a: NanoCore
    • 0xfd05:$a: NanoCore
    • 0xff39:$a: NanoCore
    • 0xff4d:$a: NanoCore
    • 0xff8d:$a: NanoCore
    • 0xfd54:$b: ClientPlugin
    • 0xff56:$b: ClientPlugin
    • 0xff96:$b: ClientPlugin
    • 0xfe7b:$c: ProjectData
    • 0x10882:$d: DESCrypto
    • 0x1824e:$e: KeepAlive
    • 0x1623c:$g: LogClientMessage
    • 0x12437:$i: get_Connected
    • 0x10bb8:$j: #=q
    • 0x10be8:$j: #=q
    • 0x10c04:$j: #=q
    • 0x10c34:$j: #=q
    • 0x10c50:$j: #=q
    • 0x10c6c:$j: #=q
    • 0x10c9c:$j: #=q
    • 0x10cb8:$j: #=q
    0000000E.00000002.708373051.0000000000402000.00000040.00000001.sdmpNanocore_RAT_Gen_2Detetcs the Nanocore RATFlorian Roth
    • 0xff8d:$x1: NanoCore.ClientPluginHost
    • 0xffca:$x2: IClientNetworkHost
    • 0x13afd:$x3: #=qjgz7ljmpp0J7FvL9dmi8ctJILdgtcbw8JYUc6GC8MeJ9B11Crfg2Djxcf0p8PZGe
    0000000E.00000002.708373051.0000000000402000.00000040.00000001.sdmpJoeSecurity_NanocoreYara detected Nanocore RATJoe Security
      Click to see the 100 entries

      Unpacked PEs

      SourceRuleDescriptionAuthorStrings
      22.2.f908098a_by_Libranalysis.exe.400000.0.unpackNanocore_RAT_Gen_2Detetcs the Nanocore RATFlorian Roth
      • 0x1018d:$x1: NanoCore.ClientPluginHost
      • 0x101ca:$x2: IClientNetworkHost
      • 0x13cfd:$x3: #=qjgz7ljmpp0J7FvL9dmi8ctJILdgtcbw8JYUc6GC8MeJ9B11Crfg2Djxcf0p8PZGe
      22.2.f908098a_by_Libranalysis.exe.400000.0.unpackNanocore_RAT_Feb18_1Detects Nanocore RATFlorian Roth
      • 0xff05:$x1: NanoCore Client.exe
      • 0x1018d:$x2: NanoCore.ClientPluginHost
      • 0x117c6:$s1: PluginCommand
      • 0x117ba:$s2: FileCommand
      • 0x1266b:$s3: PipeExists
      • 0x18422:$s4: PipeCreated
      • 0x101b7:$s5: IClientLoggingHost
      22.2.f908098a_by_Libranalysis.exe.400000.0.unpackJoeSecurity_NanocoreYara detected Nanocore RATJoe Security
        22.2.f908098a_by_Libranalysis.exe.400000.0.unpackNanoCoreunknown Kevin Breen <kevin@techanarchy.net>
        • 0xfef5:$a: NanoCore
        • 0xff05:$a: NanoCore
        • 0x10139:$a: NanoCore
        • 0x1014d:$a: NanoCore
        • 0x1018d:$a: NanoCore
        • 0xff54:$b: ClientPlugin
        • 0x10156:$b: ClientPlugin
        • 0x10196:$b: ClientPlugin
        • 0x1007b:$c: ProjectData
        • 0x10a82:$d: DESCrypto
        • 0x1844e:$e: KeepAlive
        • 0x1643c:$g: LogClientMessage
        • 0x12637:$i: get_Connected
        • 0x10db8:$j: #=q
        • 0x10de8:$j: #=q
        • 0x10e04:$j: #=q
        • 0x10e34:$j: #=q
        • 0x10e50:$j: #=q
        • 0x10e6c:$j: #=q
        • 0x10e9c:$j: #=q
        • 0x10eb8:$j: #=q
        19.2.f908098a_by_Libranalysis.exe.400000.0.unpackNanocore_RAT_Gen_2Detetcs the Nanocore RATFlorian Roth
        • 0x1018d:$x1: NanoCore.ClientPluginHost
        • 0x101ca:$x2: IClientNetworkHost
        • 0x13cfd:$x3: #=qjgz7ljmpp0J7FvL9dmi8ctJILdgtcbw8JYUc6GC8MeJ9B11Crfg2Djxcf0p8PZGe