f065d31c557335cad992a806aad8adb893ee2b35de8ab3b206290006991f354f

General

Target

frAQBc8W.exe
Size

4.4MB
MD5

c5e25683bad6530516b83b00c6332788
SHA1

4cb7f56d9332b8d3dd2bbe65b231f27d52598620
SHA256

f065d31c557335cad992a806aad8adb893ee2b35de8ab3b206290006991f354f
SHA512

440c4191797704bae1609092631dd5dfdefd71c84281facd921cd6b19cbc1e52c781b2c0864d08871558e9788cdec0b38bcd1d701aa0432a9360e52eff775646
SSDEEP

98304:aUTa4GtDOPFiDyqc1RxZ3mYmZix9nSz8cQGDtE6pQacW8KPOXxK:H2DOPFiDyqc1UiS8mLpaoOXxK

Score

9^/10

evasion themida trojan

Malware Config

Signatures

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

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

frAQBc8W.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ frAQBc8W.exe
Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

frAQBc8W.exe

description ioc process

Key opened \REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions frAQBc8W.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	frAQBc8W.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions	frAQBc8W.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:

frAQBc8W.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	frAQBc8W.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	frAQBc8W.exe

Themida packer 19 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/4028-133-0x00007FF6C7F40000-0x00007FF6C8B05000-memory.dmp	themida
behavioral1/memory/4028-134-0x00007FF6C7F40000-0x00007FF6C8B05000-memory.dmp	themida
behavioral1/memory/4028-135-0x00007FF6C7F40000-0x00007FF6C8B05000-memory.dmp	themida
behavioral1/memory/4028-136-0x00007FF6C7F40000-0x00007FF6C8B05000-memory.dmp	themida
behavioral1/memory/4028-137-0x00007FF6C7F40000-0x00007FF6C8B05000-memory.dmp	themida
behavioral1/memory/4028-171-0x00007FF6C7F40000-0x00007FF6C8B05000-memory.dmp	themida
behavioral1/memory/4028-227-0x00007FF6C7F40000-0x00007FF6C8B05000-memory.dmp	themida
behavioral1/memory/4028-279-0x00007FF6C7F40000-0x00007FF6C8B05000-memory.dmp	themida
behavioral1/memory/4028-332-0x00007FF6C7F40000-0x00007FF6C8B05000-memory.dmp	themida
behavioral1/memory/4028-383-0x00007FF6C7F40000-0x00007FF6C8B05000-memory.dmp	themida
behavioral1/memory/4028-442-0x00007FF6C7F40000-0x00007FF6C8B05000-memory.dmp	themida
behavioral1/memory/4028-496-0x00007FF6C7F40000-0x00007FF6C8B05000-memory.dmp	themida
behavioral1/memory/4028-558-0x00007FF6C7F40000-0x00007FF6C8B05000-memory.dmp	themida
behavioral1/memory/4028-616-0x00007FF6C7F40000-0x00007FF6C8B05000-memory.dmp	themida
behavioral1/memory/4028-684-0x00007FF6C7F40000-0x00007FF6C8B05000-memory.dmp	themida
behavioral1/memory/4028-750-0x00007FF6C7F40000-0x00007FF6C8B05000-memory.dmp	themida
behavioral1/memory/4028-810-0x00007FF6C7F40000-0x00007FF6C8B05000-memory.dmp	themida
behavioral1/memory/4028-876-0x00007FF6C7F40000-0x00007FF6C8B05000-memory.dmp	themida
behavioral1/memory/4028-936-0x00007FF6C7F40000-0x00007FF6C8B05000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

frAQBc8W.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA frAQBc8W.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs

Processes:

frAQBc8W.exe

pid process

4028 frAQBc8W.exe
4028 frAQBc8W.exe
4028 frAQBc8W.exe
Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

System Information Discovery
T1082

Processes:

frAQBc8W.exe

description ioc process

File opened (read-only) \??\VBoxMiniRdrDN frAQBc8W.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	frAQBc8W.exe

description	ioc	process
File opened (read-only)	\??\VBoxMiniRdrDN	frAQBc8W.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

frAQBc8W.exe

pid	process
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe
4028	frAQBc8W.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

frAQBc8W.execmd.exe

description	pid	process	target process
PID 4028 wrote to memory of 548	4028	frAQBc8W.exe	cmd.exe
PID 4028 wrote to memory of 548	4028	frAQBc8W.exe	cmd.exe
PID 4028 wrote to memory of 1660	4028	frAQBc8W.exe	cmd.exe
PID 4028 wrote to memory of 1660	4028	frAQBc8W.exe	cmd.exe
PID 4028 wrote to memory of 4812	4028	frAQBc8W.exe	cmd.exe
PID 4028 wrote to memory of 4812	4028	frAQBc8W.exe	cmd.exe
PID 4028 wrote to memory of 3148	4028	frAQBc8W.exe	cmd.exe
PID 4028 wrote to memory of 3148	4028	frAQBc8W.exe	cmd.exe
PID 3148 wrote to memory of 416	3148	cmd.exe	certutil.exe
PID 3148 wrote to memory of 416	3148	cmd.exe	certutil.exe
PID 3148 wrote to memory of 3900	3148	cmd.exe	find.exe
PID 3148 wrote to memory of 3900	3148	cmd.exe	find.exe
PID 3148 wrote to memory of 4904	3148	cmd.exe	find.exe
PID 3148 wrote to memory of 4904	3148	cmd.exe	find.exe
PID 4028 wrote to memory of 4460	4028	frAQBc8W.exe	cmd.exe
PID 4028 wrote to memory of 4460	4028	frAQBc8W.exe	cmd.exe
PID 4028 wrote to memory of 4568	4028	frAQBc8W.exe	cmd.exe
PID 4028 wrote to memory of 4568	4028	frAQBc8W.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\frAQBc8W.exe
"C:\Users\Admin\AppData\Local\Temp\frAQBc8W.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Looks for VirtualBox Guest Additions in registry
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks for VirtualBox DLLs, possible anti-VM trick
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4028

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c color 2
2⤵
PID:548

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c color 5
2⤵
PID:1660

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c CLS
2⤵
PID:4812

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\frAQBc8W.exe" MD5 | find /i /v "md5" | find /i /v "certutil"
2⤵
- Suspicious use of WriteProcessMemory
PID:3148

C:\Windows\system32\certutil.exe
certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\frAQBc8W.exe" MD5
3⤵
PID:416

C:\Windows\system32\find.exe
find /i /v "md5"
3⤵
PID:3900

C:\Windows\system32\find.exe
find /i /v "certutil"
3⤵
PID:4904

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c CLS
2⤵
PID:4460

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c color 5
2⤵
PID:4568

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Query Registry

3

T1012

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

3

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/4028-133-0x00007FF6C7F40000-0x00007FF6C8B05000-memory.dmp

Filesize
11.8MB

Download
memory/4028-134-0x00007FF6C7F40000-0x00007FF6C8B05000-memory.dmp

Filesize
11.8MB

Download
memory/4028-135-0x00007FF6C7F40000-0x00007FF6C8B05000-memory.dmp

Filesize
11.8MB

Download
memory/4028-136-0x00007FF6C7F40000-0x00007FF6C8B05000-memory.dmp

Filesize
11.8MB

Download
memory/4028-137-0x00007FF6C7F40000-0x00007FF6C8B05000-memory.dmp

Filesize
11.8MB

Download
memory/4028-171-0x00007FF6C7F40000-0x00007FF6C8B05000-memory.dmp

Filesize
11.8MB

Download
memory/4028-227-0x00007FF6C7F40000-0x00007FF6C8B05000-memory.dmp

Filesize
11.8MB

Download
memory/4028-279-0x00007FF6C7F40000-0x00007FF6C8B05000-memory.dmp

Filesize
11.8MB

Download
memory/4028-332-0x00007FF6C7F40000-0x00007FF6C8B05000-memory.dmp

Filesize
11.8MB

Download
memory/4028-383-0x00007FF6C7F40000-0x00007FF6C8B05000-memory.dmp

Filesize
11.8MB

Download
memory/4028-442-0x00007FF6C7F40000-0x00007FF6C8B05000-memory.dmp

Filesize
11.8MB

Download
memory/4028-496-0x00007FF6C7F40000-0x00007FF6C8B05000-memory.dmp

Filesize
11.8MB

Download
memory/4028-558-0x00007FF6C7F40000-0x00007FF6C8B05000-memory.dmp

Filesize
11.8MB

Download
memory/4028-616-0x00007FF6C7F40000-0x00007FF6C8B05000-memory.dmp

Filesize
11.8MB

Download
memory/4028-684-0x00007FF6C7F40000-0x00007FF6C8B05000-memory.dmp

Filesize
11.8MB

Download
memory/4028-750-0x00007FF6C7F40000-0x00007FF6C8B05000-memory.dmp

Filesize
11.8MB

Download
memory/4028-810-0x00007FF6C7F40000-0x00007FF6C8B05000-memory.dmp

Filesize
11.8MB

Download
memory/4028-876-0x00007FF6C7F40000-0x00007FF6C8B05000-memory.dmp

Filesize
11.8MB

Download
memory/4028-936-0x00007FF6C7F40000-0x00007FF6C8B05000-memory.dmp

Filesize
11.8MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads