29080b370df6a00c28578de988c5429aa0fc412c0977aadb1a56d6ed40a7c439

General

Target

biamou.exe
Size

3.3MB
MD5

4da9953b63df9701effcbdabf0225a47
SHA1

c6b57281d09a692e818b40c56f1ef08c8a4221fb
SHA256

29080b370df6a00c28578de988c5429aa0fc412c0977aadb1a56d6ed40a7c439
SHA512

2e6e436dfad558c6f52db26bfa510d61ed741c8f3c4d24f755682f8f9d95662a2c2c7bffc0c518eedc9754f3f75b5e8184e6b76b34a9a7e84e007cb51d976d13

Score

9^/10

evasion persistence themida trojan

Malware Config

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Executes dropped EXE 1 IoCs

Processes:

IntelRapid.exe

pid process

3428 IntelRapid.exe
Sets service image path in registry 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

pid	process
3428	IntelRapid.exe

Checks BIOS information in registry 2 TTPs 4 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

biamou.exeIntelRapid.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	biamou.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	biamou.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	IntelRapid.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	IntelRapid.exe

Drops startup file 1 IoCs

Processes:

biamou.exe

description ioc process

File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\IntelRapid.lnk biamou.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\IntelRapid.lnk	biamou.exe

Themida packer 8 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/3924-133-0x00007FF619500000-0x00007FF619E1B000-memory.dmp	themida
behavioral2/memory/3924-134-0x00007FF619500000-0x00007FF619E1B000-memory.dmp	themida
behavioral2/memory/3924-135-0x00007FF619500000-0x00007FF619E1B000-memory.dmp	themida
C:\Users\Admin\AppData\Roaming\Intel Rapid\IntelRapid.exe	themida
C:\Users\Admin\AppData\Roaming\Intel Rapid\IntelRapid.exe	themida
behavioral2/memory/3428-138-0x00007FF7344C0000-0x00007FF734DDB000-memory.dmp	themida
behavioral2/memory/3428-139-0x00007FF7344C0000-0x00007FF734DDB000-memory.dmp	themida
behavioral2/memory/3428-140-0x00007FF7344C0000-0x00007FF734DDB000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

biamou.exeIntelRapid.exe

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

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

biamou.exeIntelRapid.exe

pid process

3924 biamou.exe
3428 IntelRapid.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

pid	process
3924	biamou.exe
3428	IntelRapid.exe

Modifies data under HKEY_USERS 41 IoCs

Processes:

WaaSMedicAgent.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	WaaSMedicAgent.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

IntelRapid.exe

pid process

3428 IntelRapid.exe

pid	process
3428	IntelRapid.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

svchost.exesvchost.exe

description	pid	process
Token: SeSystemtimePrivilege	3760	svchost.exe
Token: SeSystemtimePrivilege	3760	svchost.exe
Token: SeIncBasePriorityPrivilege	3760	svchost.exe
Token: SeSystemtimePrivilege	3760	svchost.exe
Token: SeSystemtimePrivilege	3232	svchost.exe
Token: SeSystemtimePrivilege	3232	svchost.exe
Token: SeIncBasePriorityPrivilege	3232	svchost.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

biamou.exe

description	pid	process	target process
PID 3924 wrote to memory of 3428	3924	biamou.exe	IntelRapid.exe
PID 3924 wrote to memory of 3428	3924	biamou.exe	IntelRapid.exe

C:\Users\Admin\AppData\Local\Temp\biamou.exe
"C:\Users\Admin\AppData\Local\Temp\biamou.exe"
1⤵
- Checks BIOS information in registry
- Drops startup file
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of WriteProcessMemory
PID:3924

C:\Users\Admin\AppData\Roaming\Intel Rapid\IntelRapid.exe
"C:\Users\Admin\AppData\Roaming\Intel Rapid\IntelRapid.exe"
2⤵
- Executes dropped EXE
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: AddClipboardFormatListener
PID:3428

C:\Windows\System32\WaaSMedicAgent.exe
C:\Windows\System32\WaaSMedicAgent.exe 5d8819502158103b0f7deac8786a2e10 r47ChdGul0a9kBdCP4mQbw.0.1.0.0.0
1⤵
- Modifies data under HKEY_USERS
PID:1184

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3760

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3232

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

Virtualization/Sandbox Evasion

1

T1497

System Information Discovery

3

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Intel Rapid\IntelRapid.exe
MD5
4da9953b63df9701effcbdabf0225a47

SHA1
c6b57281d09a692e818b40c56f1ef08c8a4221fb

SHA256
29080b370df6a00c28578de988c5429aa0fc412c0977aadb1a56d6ed40a7c439

SHA512
2e6e436dfad558c6f52db26bfa510d61ed741c8f3c4d24f755682f8f9d95662a2c2c7bffc0c518eedc9754f3f75b5e8184e6b76b34a9a7e84e007cb51d976d13

Download Submit
C:\Users\Admin\AppData\Roaming\Intel Rapid\IntelRapid.exe
MD5
4da9953b63df9701effcbdabf0225a47

SHA1
c6b57281d09a692e818b40c56f1ef08c8a4221fb

SHA256
29080b370df6a00c28578de988c5429aa0fc412c0977aadb1a56d6ed40a7c439

SHA512
2e6e436dfad558c6f52db26bfa510d61ed741c8f3c4d24f755682f8f9d95662a2c2c7bffc0c518eedc9754f3f75b5e8184e6b76b34a9a7e84e007cb51d976d13

Download Submit
memory/3428-138-0x00007FF7344C0000-0x00007FF734DDB000-memory.dmp

Filesize
9.1MB

Download
memory/3428-139-0x00007FF7344C0000-0x00007FF734DDB000-memory.dmp

Filesize
9.1MB

Download
memory/3428-140-0x00007FF7344C0000-0x00007FF734DDB000-memory.dmp

Filesize
9.1MB

Download
memory/3924-133-0x00007FF619500000-0x00007FF619E1B000-memory.dmp

Filesize
9.1MB

Download
memory/3924-134-0x00007FF619500000-0x00007FF619E1B000-memory.dmp

Filesize
9.1MB

Download
memory/3924-135-0x00007FF619500000-0x00007FF619E1B000-memory.dmp

Filesize
9.1MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads