Loading Joe Sandbox Report ...

Edit tour

Windows Analysis Report
OCBC_BAN.EXE

Overview

General Information

Sample Name:OCBC_BAN.EXE
Analysis ID:623417
MD5:be7bb1d25f6fb1b424ab8b54dc3971d0
SHA1:73e4dcb20a351f5d7332ac2383fce657f22906b2
SHA256:353fb33f1ee908da348b403a829f36ad6f6bd0aa3022bc56f0542f9197266b20
Tags:AgentTeslaagentteslananocoreexe
Infos:

Detection

Nanocore, AgentTesla
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)
Yara detected AgentTesla
Sigma detected: NanoCore
Detected Nanocore Rat
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 steal Mail credentials (via file / registry access)
.NET source code contains potential unpacker
Injects a PE file into a foreign processes
.NET source code contains very large array initializations
Creates an undocumented autostart registry key
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)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Tries to harvest and steal browser information (history, passwords, etc)
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
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
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)
Stores files to the Windows start menu directory
Yara detected Credential Stealer
HTTP GET or POST without a user agent
IP address seen in connection with other malware
Contains long sleeps (>= 3 min)
Enables debug privileges
Creates a DirectInput object (often for capturing keystrokes)
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Installs a raw input device (often for capturing keystrokes)
Sample file is different than original file name gathered from version info
Drops PE files
Detected TCP or UDP traffic on non-standard ports
Uses SMTP (mail sending)
Queries sensitive processor information (via WMI, Win32_Processor, often done to detect virtual machines)
Monitors certain registry keys / values for changes (often done to protect autostart functionality)
Dropped file seen in connection with other malware
Creates a process in suspended mode (likely to inject code)
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)

Classification

  • System is w10x64
  • OCBC_BAN.EXE (PID: 4500 cmdline: "C:\Users\user\Desktop\OCBC_BAN.EXE" MD5: BE7BB1D25F6FB1B424AB8B54DC3971D0)
    • cmd.exe (PID: 3616 cmdline: "C:\Windows\System32\cmd.exe" /c timeout 10 MD5: F3BDBE3BB6F734E357235F4D5898582D)
      • conhost.exe (PID: 5556 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
      • timeout.exe (PID: 4804 cmdline: timeout 10 MD5: 121A4EDAE60A7AF6F5DFA82F7BB95659)
    • Pubrtkzyqpdcef1.exe (PID: 5604 cmdline: "C:\Users\user\AppData\Local\Temp\Pubrtkzyqpdcef1.exe" MD5: 4AD411F172F9362BB859CD369E5F3F8E)
    • OCBC_BAN.EXE (PID: 3524 cmdline: C:\Users\user\Desktop\OCBC_BAN.EXE MD5: BE7BB1D25F6FB1B424AB8B54DC3971D0)
  • cleanup
{"Version": "1.2.2.0", "Mutex": "49b4bf8f-6f20-4306-8d82-ae70effc", "Group": "Default", "Domain1": "23.105.131.196", "Domain2": "127.0.0.1", "Port": 9070, "RunOnStartup": "Disable", "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"}
{"Exfil Mode": "SMTP", "Username": "info@elparque.com.uy", "Password": "info919", "Host": "mail.elparque.com.uy"}
SourceRuleDescriptionAuthorStrings
C:\Users\user\AppData\Local\Temp\Pubrtkzyqpdcef1.exeJoeSecurity_AgentTesla_1Yara detected AgentTeslaJoe Security
    C:\Users\user\AppData\Local\Temp\Pubrtkzyqpdcef1.exeJoeSecurity_AgentTesla_2Yara detected AgentTeslaJoe Security
      C:\Users\user\AppData\Local\Temp\Pubrtkzyqpdcef1.exeMALWARE_Win_AgentTeslaV3AgentTeslaV3 infostealer payloadditekSHen
      • 0x326a2:$s10: logins
      • 0x32109:$s11: credential
      • 0x2e6e6:$g1: get_Clipboard
      • 0x2e6f4:$g2: get_Keyboard
      • 0x2e701:$g3: get_Password
      • 0x2f9e4:$g4: get_CtrlKeyDown
      • 0x2f9f4:$g5: get_ShiftKeyDown
      • 0x2fa05:$g6: get_AltKeyDown
      SourceRuleDescriptionAuthorStrings
      0000000C.00000002.637242495.0000000005300000.00000004.08000000.00040000.00000000.sdmpNanocore_RAT_Gen_2Detetcs the Nanocore RATFlorian Roth
      • 0xe75:$x1: NanoCore.ClientPluginHost
      • 0xe8f:$x2: IClientNetworkHost
      0000000C.00000002.637242495.0000000005300000.00000004.08000000.00040000.00000000.sdmpNanocore_RAT_Feb18_1Detects Nanocore RATFlorian Roth
      • 0xe75:$x2: NanoCore.ClientPluginHost
      • 0x1261:$s3: PipeExists
      • 0x1136:$s4: PipeCreated
      • 0xeb0:$s5: IClientLoggingHost
      0000000C.00000002.637242495.0000000005300000.00000004.08000000.00040000.00000000.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:$s7: get_Connected
      0000000C.00000000.529083505.0000000000402000.00000040.00000400.00020000.00000000.sdmpNanocore_RAT_Gen_2Detetcs the Nanocore RATFlorian Roth
      • 0xff8d:$x1: NanoCore.ClientPluginHost
      • 0xffca:$x2: IClientNetworkHost
      • 0x13afd:$x3: #=qjgz7ljmpp0J7FvL9dmi8ctJILdgtcbw8JYUc6GC8MeJ9B11Crfg2Djxcf0p8PZGe
      0000000C.00000000.529083505.0000000000402000.00000040.00000400.00020000.00000000.sdmpJoeSecurity_NanocoreYara detected Nanocore RATJoe Security