betabot | b2da1683029eeaebd526bf72a88599d651816a3c756db7a80dc48282579ac137

General

Target

invoice_941235.doc
Size

12KB
MD5

c7c80f25d00778c46a8acc0385df0e58
SHA1

12cbd6f950bd590647bb40ac72a2549d715e26e8
SHA256

b2da1683029eeaebd526bf72a88599d651816a3c756db7a80dc48282579ac137
SHA512

b915001c787b4b0c0e59b9519c5de0dff56ec5c6a7807ddfbc063f7ba37c052bdadda0df44f0fccd57cacd8ff07a40a6e1102f600ab63fdca4b2c9a1012b5ab9

Score

10^/10

trojan backdoor botnet betabot persistence evasion

Malware Config

Signatures

BetaBot
Beta Bot is a Trojan that infects computers and disables Antivirus.
trojan backdoor botnet betabot

Modifies firewall policy service 2 TTPs 4 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

Processes:

explorer.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	explorer.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	explorer.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\PublicProfile	explorer.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\PublicProfile\EnableFirewall = "0"	explorer.exe

Blacklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

6 1680 EQNEDT32.EXE
Executes dropped EXE 1 IoCs

Processes:

vbc.exe

pid process

1884 vbc.exe
Sets file execution options in registry 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112
Checks BIOS information in registry 2 TTPs 1 IoCs
BIOS information is often read in order to detect sandboxing environments.

Query Registry
T1012

System Information Discovery
T1082

Processes:

explorer.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explorer.exe
Loads dropped DLL 4 IoCs

Processes:

EQNEDT32.EXErundll32.exe

pid process

1680 EQNEDT32.EXE
1680 EQNEDT32.EXE
1680 EQNEDT32.EXE
1972 rundll32.exe
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

flow	pid	process
6	1680	EQNEDT32.EXE

pid	process
1884	vbc.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorer.exe

pid	process
1680	EQNEDT32.EXE
1680	EQNEDT32.EXE
1680	EQNEDT32.EXE
1972	rundll32.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

explorer.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2090973689-680783404-4292415065-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Google Updater 2.0 = "C:\\ProgramData\\Google Updater 2.0\\3q1gee573qsc.exe"	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-2090973689-680783404-4292415065-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2090973689-680783404-4292415065-1000\Software\Microsoft\Windows\CurrentVersion\Run\Google Updater 2.0 = "\"C:\\ProgramData\\Google Updater 2.0\\3q1gee573qsc.exe\""	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-2090973689-680783404-4292415065-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce	explorer.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

cmd.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA cmd.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 9 IoCs

Processes:

cmd.exeexplorer.exe

pid process

316 cmd.exe
1456 explorer.exe
1456 explorer.exe
1456 explorer.exe
1456 explorer.exe
1456 explorer.exe
1456 explorer.exe
1456 explorer.exe
1456 explorer.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	cmd.exe

pid	process
316	cmd.exe
1456	explorer.exe
1456	explorer.exe
1456	explorer.exe
1456	explorer.exe
1456	explorer.exe
1456	explorer.exe
1456	explorer.exe
1456	explorer.exe

NSIS installer 10 IoCs

installer

Processes:

resource	yara_rule
\Users\Admin\AppData\Roaming\vbc.exe	nsis_installer_1
\Users\Admin\AppData\Roaming\vbc.exe	nsis_installer_2
\Users\Admin\AppData\Roaming\vbc.exe	nsis_installer_1
\Users\Admin\AppData\Roaming\vbc.exe	nsis_installer_2
\Users\Admin\AppData\Roaming\vbc.exe	nsis_installer_1
\Users\Admin\AppData\Roaming\vbc.exe	nsis_installer_2
C:\Users\Admin\AppData\Roaming\vbc.exe	nsis_installer_1
C:\Users\Admin\AppData\Roaming\vbc.exe	nsis_installer_2
C:\Users\Admin\AppData\Roaming\vbc.exe	nsis_installer_1
C:\Users\Admin\AppData\Roaming\vbc.exe	nsis_installer_2

Office loads VBA resources, possible macro or embedded object present

Checks processor information in registry 2 TTPs 4 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

cmd.exeexplorer.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	cmd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	cmd.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	explorer.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

explorer.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	explorer.exe

Launches Equation Editor 1 TTPs 1 IoCs
Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.
exploit

Exploitation for Client Execution
T1203

Processes:

EQNEDT32.EXE

pid process

1680 EQNEDT32.EXE

pid	process
1680	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

Processes:

explorer.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2090973689-680783404-4292415065-1000\Software\Microsoft\Internet Explorer\Main	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2090973689-680783404-4292415065-1000\Software\Microsoft\Internet Explorer\Main\NoProtectedModeBanner = "1"	explorer.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

WINWORD.EXE

pid process

1108 WINWORD.EXE

pid	process
1108	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 13 IoCs

Processes:

rundll32.exeexplorer.exe

pid	process
1972	rundll32.exe
1972	rundll32.exe
1456	explorer.exe
1456	explorer.exe
1456	explorer.exe
1456	explorer.exe
1456	explorer.exe
1456	explorer.exe
1456	explorer.exe
1456	explorer.exe
1456	explorer.exe
1456	explorer.exe
1456	explorer.exe

Suspicious behavior: MapViewOfSection 8 IoCs

Processes:

rundll32.execmd.exeexplorer.exe

pid process

1972 rundll32.exe
1972 rundll32.exe
316 cmd.exe
316 cmd.exe
1456 explorer.exe
1456 explorer.exe
1456 explorer.exe
1456 explorer.exe

Suspicious use of AdjustPrivilegeToken 28 IoCs

Processes:

cmd.exeexplorer.exe

description	pid	process
Token: SeDebugPrivilege	316	cmd.exe
Token: SeRestorePrivilege	316	cmd.exe
Token: SeBackupPrivilege	316	cmd.exe
Token: SeLoadDriverPrivilege	316	cmd.exe
Token: SeCreatePagefilePrivilege	316	cmd.exe
Token: SeShutdownPrivilege	316	cmd.exe
Token: SeTakeOwnershipPrivilege	316	cmd.exe
Token: SeChangeNotifyPrivilege	316	cmd.exe
Token: SeCreateTokenPrivilege	316	cmd.exe
Token: SeMachineAccountPrivilege	316	cmd.exe
Token: SeSecurityPrivilege	316	cmd.exe
Token: SeAssignPrimaryTokenPrivilege	316	cmd.exe
Token: SeCreateGlobalPrivilege	316	cmd.exe
Token: 33	316	cmd.exe
Token: SeDebugPrivilege	1456	explorer.exe
Token: SeRestorePrivilege	1456	explorer.exe
Token: SeBackupPrivilege	1456	explorer.exe
Token: SeLoadDriverPrivilege	1456	explorer.exe
Token: SeCreatePagefilePrivilege	1456	explorer.exe
Token: SeShutdownPrivilege	1456	explorer.exe
Token: SeTakeOwnershipPrivilege	1456	explorer.exe
Token: SeChangeNotifyPrivilege	1456	explorer.exe
Token: SeCreateTokenPrivilege	1456	explorer.exe
Token: SeMachineAccountPrivilege	1456	explorer.exe
Token: SeSecurityPrivilege	1456	explorer.exe
Token: SeAssignPrimaryTokenPrivilege	1456	explorer.exe
Token: SeCreateGlobalPrivilege	1456	explorer.exe
Token: 33	1456	explorer.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

WINWORD.EXE

pid process

1108 WINWORD.EXE
1108 WINWORD.EXE

pid	process
1108	WINWORD.EXE
1108	WINWORD.EXE

Suspicious use of WriteProcessMemory 88 IoCs

Processes:

EQNEDT32.EXEvbc.exerundll32.execmd.exe

description	pid	process	target process
PID 1680 wrote to memory of 1884	1680	EQNEDT32.EXE	vbc.exe
PID 1680 wrote to memory of 1884	1680	EQNEDT32.EXE	vbc.exe
PID 1680 wrote to memory of 1884	1680	EQNEDT32.EXE	vbc.exe
PID 1680 wrote to memory of 1884	1680	EQNEDT32.EXE	vbc.exe
PID 1884 wrote to memory of 1972	1884	vbc.exe	rundll32.exe
PID 1884 wrote to memory of 1972	1884	vbc.exe	rundll32.exe
PID 1884 wrote to memory of 1972	1884	vbc.exe	rundll32.exe
PID 1884 wrote to memory of 1972	1884	vbc.exe	rundll32.exe
PID 1884 wrote to memory of 1972	1884	vbc.exe	rundll32.exe
PID 1884 wrote to memory of 1972	1884	vbc.exe	rundll32.exe
PID 1884 wrote to memory of 1972	1884	vbc.exe	rundll32.exe
PID 1972 wrote to memory of 1132	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 1132	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 1132	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 1132	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 1132	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 1972 wrote to memory of 316	1972	rundll32.exe	cmd.exe
PID 316 wrote to memory of 1456	316	cmd.exe	explorer.exe
PID 316 wrote to memory of 1456	316	cmd.exe	explorer.exe
PID 316 wrote to memory of 1456	316	cmd.exe	explorer.exe
PID 316 wrote to memory of 1456	316	cmd.exe	explorer.exe
PID 316 wrote to memory of 1456	316	cmd.exe	explorer.exe
PID 316 wrote to memory of 1456	316	cmd.exe	explorer.exe
PID 316 wrote to memory of 1456	316	cmd.exe	explorer.exe

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1212

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1272

C:\Program Files\Microsoft Office\Office14\WINWORD.EXE
"C:\Program Files\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\invoice_941235.doc"
2⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1108

C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
"C:\Program Files\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
1⤵
- Blacklisted process makes network request
- Loads dropped DLL
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
PID:1680

C:\Users\Admin\AppData\Roaming\vbc.exe
"C:\Users\Admin\AppData\Roaming\vbc.exe"
2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1884

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe EncoreSlipway,Breathing
3⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1972

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe"
4⤵
PID:1132

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe"
4⤵
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:316

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
5⤵
- Modifies firewall policy service
- Checks BIOS information in registry
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1456

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1820

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1

T1064

Exploitation for Client Execution

1

T1203

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

2

T1060

Privilege Escalation

Defense Evasion

Modify Registry

4

T1112

Scripting

1

T1064

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

4

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\AmahRealgar

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C:\Users\Admin\AppData\Local\Temp\EncoreSlipway.DLL

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C:\Users\Admin\AppData\Roaming\vbc.exe

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C:\Users\Admin\AppData\Roaming\vbc.exe

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\Users\Admin\AppData\Local\Temp\EncoreSlipway.dll

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\Users\Admin\AppData\Roaming\vbc.exe

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\Users\Admin\AppData\Roaming\vbc.exe

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\Users\Admin\AppData\Roaming\vbc.exe

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memory/316-12-0x0000000000000000-mapping.dmp

Download
memory/316-13-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/316-14-0x00000000027E0000-0x0000000002893000-memory.dmp

Filesize
716KB

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memory/316-15-0x0000000002DC0000-0x0000000002F41000-memory.dmp

Filesize
1.5MB

Download
memory/1456-16-0x0000000000000000-mapping.dmp

Download
memory/1820-0-0x000007FEF7770000-0x000007FEF79EA000-memory.dmp

Filesize
2.5MB

Download
memory/1884-4-0x0000000000000000-mapping.dmp

Download
memory/1972-7-0x0000000000000000-mapping.dmp

Download
memory/1972-11-0x0000000002900000-0x0000000002935000-memory.dmp

Filesize
212KB

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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