asyncrat | d1f903b0f3cde4880408f44fcb30be784d1a1b979df7f249ad5c35e87f873790

General

Target

d1f903b0f3cde4880408f44fcb30be784d1a1b979df7f249ad5c35e87f873790.exe
Size

3.6MB
MD5

1816ea8c609c83ad29991af88da60a3f
SHA1

2e27cd519b6aafc0e8a439dc6268f7ed6661f0b3
SHA256

d1f903b0f3cde4880408f44fcb30be784d1a1b979df7f249ad5c35e87f873790
SHA512

1c9b48df258c457dafd6fab4631949de6f3aab3017afbb6179fe57089e5629052b0bcbd84d55a0364c23a5a141c4f1b1a25b94f33dfe0b728be3fcfccea0ab0d
SSDEEP

98304:10kyPmJLXKvcegBKUx0NNatL3Lin21B9HhJXQvrRUKujPmX:TTJ7BegBUatvZD9HhRoF6jP

Score

10^/10

asyncrat default discovery evasion rat themida trojan

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

C2

127.0.0.1:1605

Mutex

tkvbkymttagzul

Attributes

delay
1
install
false
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat

VenomRAT 1 IoCs

Detects VenomRAT.

rat

Processes:

resource	yara_rule
behavioral2/memory/404-13-0x0000000000400000-0x0000000000418000-memory.dmp	VenomRAT

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

d1f903b0f3cde4880408f44fcb30be784d1a1b979df7f249ad5c35e87f873790.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ d1f903b0f3cde4880408f44fcb30be784d1a1b979df7f249ad5c35e87f873790.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	d1f903b0f3cde4880408f44fcb30be784d1a1b979df7f249ad5c35e87f873790.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

d1f903b0f3cde4880408f44fcb30be784d1a1b979df7f249ad5c35e87f873790.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	d1f903b0f3cde4880408f44fcb30be784d1a1b979df7f249ad5c35e87f873790.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	d1f903b0f3cde4880408f44fcb30be784d1a1b979df7f249ad5c35e87f873790.exe

Themida packer 3 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/3132-10-0x0000000000400000-0x0000000000D52000-memory.dmp	themida
behavioral2/memory/3132-11-0x0000000000400000-0x0000000000D52000-memory.dmp	themida
behavioral2/memory/3132-17-0x0000000000400000-0x0000000000D52000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

d1f903b0f3cde4880408f44fcb30be784d1a1b979df7f249ad5c35e87f873790.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	d1f903b0f3cde4880408f44fcb30be784d1a1b979df7f249ad5c35e87f873790.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

d1f903b0f3cde4880408f44fcb30be784d1a1b979df7f249ad5c35e87f873790.exe

pid process

3132 d1f903b0f3cde4880408f44fcb30be784d1a1b979df7f249ad5c35e87f873790.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

d1f903b0f3cde4880408f44fcb30be784d1a1b979df7f249ad5c35e87f873790.exe

description	pid	process	target process
PID 3132 set thread context of 404	3132	d1f903b0f3cde4880408f44fcb30be784d1a1b979df7f249ad5c35e87f873790.exe	RegSvcs.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3232 404 WerFault.exe RegSvcs.exe

pid	pid_target	process	target process
3232	404	WerFault.exe	RegSvcs.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

d1f903b0f3cde4880408f44fcb30be784d1a1b979df7f249ad5c35e87f873790.exeRegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d1f903b0f3cde4880408f44fcb30be784d1a1b979df7f249ad5c35e87f873790.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

d1f903b0f3cde4880408f44fcb30be784d1a1b979df7f249ad5c35e87f873790.exe

pid	process
3132	d1f903b0f3cde4880408f44fcb30be784d1a1b979df7f249ad5c35e87f873790.exe
3132	d1f903b0f3cde4880408f44fcb30be784d1a1b979df7f249ad5c35e87f873790.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

Processes:

RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	404	RegSvcs.exe
Token: SeIncreaseQuotaPrivilege	404	RegSvcs.exe
Token: SeSecurityPrivilege	404	RegSvcs.exe
Token: SeTakeOwnershipPrivilege	404	RegSvcs.exe
Token: SeLoadDriverPrivilege	404	RegSvcs.exe
Token: SeSystemProfilePrivilege	404	RegSvcs.exe
Token: SeSystemtimePrivilege	404	RegSvcs.exe
Token: SeProfSingleProcessPrivilege	404	RegSvcs.exe
Token: SeIncBasePriorityPrivilege	404	RegSvcs.exe
Token: SeCreatePagefilePrivilege	404	RegSvcs.exe
Token: SeBackupPrivilege	404	RegSvcs.exe
Token: SeRestorePrivilege	404	RegSvcs.exe
Token: SeShutdownPrivilege	404	RegSvcs.exe
Token: SeDebugPrivilege	404	RegSvcs.exe
Token: SeSystemEnvironmentPrivilege	404	RegSvcs.exe
Token: SeRemoteShutdownPrivilege	404	RegSvcs.exe
Token: SeUndockPrivilege	404	RegSvcs.exe
Token: SeManageVolumePrivilege	404	RegSvcs.exe
Token: 33	404	RegSvcs.exe
Token: 34	404	RegSvcs.exe
Token: 35	404	RegSvcs.exe
Token: 36	404	RegSvcs.exe
Token: SeIncreaseQuotaPrivilege	404	RegSvcs.exe
Token: SeSecurityPrivilege	404	RegSvcs.exe
Token: SeTakeOwnershipPrivilege	404	RegSvcs.exe
Token: SeLoadDriverPrivilege	404	RegSvcs.exe
Token: SeSystemProfilePrivilege	404	RegSvcs.exe
Token: SeSystemtimePrivilege	404	RegSvcs.exe
Token: SeProfSingleProcessPrivilege	404	RegSvcs.exe
Token: SeIncBasePriorityPrivilege	404	RegSvcs.exe
Token: SeCreatePagefilePrivilege	404	RegSvcs.exe
Token: SeBackupPrivilege	404	RegSvcs.exe
Token: SeRestorePrivilege	404	RegSvcs.exe
Token: SeShutdownPrivilege	404	RegSvcs.exe
Token: SeDebugPrivilege	404	RegSvcs.exe
Token: SeSystemEnvironmentPrivilege	404	RegSvcs.exe
Token: SeRemoteShutdownPrivilege	404	RegSvcs.exe
Token: SeUndockPrivilege	404	RegSvcs.exe
Token: SeManageVolumePrivilege	404	RegSvcs.exe
Token: 33	404	RegSvcs.exe
Token: 34	404	RegSvcs.exe
Token: 35	404	RegSvcs.exe
Token: 36	404	RegSvcs.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

d1f903b0f3cde4880408f44fcb30be784d1a1b979df7f249ad5c35e87f873790.exe

description	pid	process	target process
PID 3132 wrote to memory of 404	3132	d1f903b0f3cde4880408f44fcb30be784d1a1b979df7f249ad5c35e87f873790.exe	RegSvcs.exe
PID 3132 wrote to memory of 404	3132	d1f903b0f3cde4880408f44fcb30be784d1a1b979df7f249ad5c35e87f873790.exe	RegSvcs.exe
PID 3132 wrote to memory of 404	3132	d1f903b0f3cde4880408f44fcb30be784d1a1b979df7f249ad5c35e87f873790.exe	RegSvcs.exe
PID 3132 wrote to memory of 404	3132	d1f903b0f3cde4880408f44fcb30be784d1a1b979df7f249ad5c35e87f873790.exe	RegSvcs.exe
PID 3132 wrote to memory of 404	3132	d1f903b0f3cde4880408f44fcb30be784d1a1b979df7f249ad5c35e87f873790.exe	RegSvcs.exe
PID 3132 wrote to memory of 404	3132	d1f903b0f3cde4880408f44fcb30be784d1a1b979df7f249ad5c35e87f873790.exe	RegSvcs.exe
PID 3132 wrote to memory of 404	3132	d1f903b0f3cde4880408f44fcb30be784d1a1b979df7f249ad5c35e87f873790.exe	RegSvcs.exe
PID 3132 wrote to memory of 404	3132	d1f903b0f3cde4880408f44fcb30be784d1a1b979df7f249ad5c35e87f873790.exe	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\d1f903b0f3cde4880408f44fcb30be784d1a1b979df7f249ad5c35e87f873790.exe
"C:\Users\Admin\AppData\Local\Temp\d1f903b0f3cde4880408f44fcb30be784d1a1b979df7f249ad5c35e87f873790.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3132

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
#by-unknown
2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:404

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 404 -s 1312
3⤵
- Program crash
PID:3232

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 404 -ip 404
1⤵
PID:4156

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/404-13-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/404-22-0x0000000075A20000-0x0000000075B10000-memory.dmp

Filesize
960KB

Download
memory/404-21-0x0000000004F60000-0x0000000004FC6000-memory.dmp

Filesize
408KB

Download
memory/404-20-0x0000000075A20000-0x0000000075B10000-memory.dmp

Filesize
960KB

Download
memory/404-15-0x0000000075A20000-0x0000000075B10000-memory.dmp

Filesize
960KB

Download
memory/3132-5-0x0000000075A20000-0x0000000075B10000-memory.dmp

Filesize
960KB

Download
memory/3132-6-0x0000000075A20000-0x0000000075B10000-memory.dmp

Filesize
960KB

Download
memory/3132-7-0x0000000075A20000-0x0000000075B10000-memory.dmp

Filesize
960KB

Download
memory/3132-8-0x0000000075A20000-0x0000000075B10000-memory.dmp

Filesize
960KB

Download
memory/3132-10-0x0000000000400000-0x0000000000D52000-memory.dmp

Filesize
9.3MB

Download
memory/3132-11-0x0000000000400000-0x0000000000D52000-memory.dmp

Filesize
9.3MB

Download
memory/3132-12-0x00000000053B0000-0x0000000005954000-memory.dmp

Filesize
5.6MB

Download
memory/3132-3-0x0000000075A20000-0x0000000075B10000-memory.dmp

Filesize
960KB

Download
memory/3132-0-0x0000000000400000-0x0000000000D52000-memory.dmp

Filesize
9.3MB

Download
memory/3132-19-0x0000000075A20000-0x0000000075B10000-memory.dmp

Filesize
960KB

Download
memory/3132-17-0x0000000000400000-0x0000000000D52000-memory.dmp

Filesize
9.3MB

Download
memory/3132-4-0x0000000075A20000-0x0000000075B10000-memory.dmp

Filesize
960KB

Download
memory/3132-1-0x0000000075A40000-0x0000000075A41000-memory.dmp

Filesize
4KB

Download
memory/3132-2-0x0000000075A20000-0x0000000075B10000-memory.dmp

Filesize
960KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads