53285fb142e48bd1a568509c8997067370ac4578b3c92d8c3bc75ecdebc2915f

Analysis

max time kernel
38s
max time network
102s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
16-03-2023 18:27

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General

Target

Akira.exe
Size

5.1MB
MD5

47feab24e4a7a088fcac9a7067cbf318
SHA1

bbe0dcbe7eb3d0fa19b4afb5edff51b7066ec45d
SHA256

53285fb142e48bd1a568509c8997067370ac4578b3c92d8c3bc75ecdebc2915f
SHA512

6b3b0e289d06839cfd32327dfa1795368601a789c3dc2a0db9f0cce01001a28a584d5c26ce4e46e9002626a1f3ba318e038578e86f00cff489956aace8b419aa
SSDEEP

98304:KxNeg5VPsVXSfJHbM+A+PoudLZ1uRhkuoxa4kReiX2+jli:TgTZhHbFddNZ1kroxacUbBi

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:

Akira.exe

description ioc process

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

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	Akira.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:

Akira.exe

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

Themida packer 9 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/1132-54-0x000000013F420000-0x000000013FFC5000-memory.dmp	themida
behavioral2/memory/1132-55-0x000000013F420000-0x000000013FFC5000-memory.dmp	themida
behavioral2/memory/1132-56-0x000000013F420000-0x000000013FFC5000-memory.dmp	themida
behavioral2/memory/1132-57-0x000000013F420000-0x000000013FFC5000-memory.dmp	themida
behavioral2/memory/1132-58-0x000000013F420000-0x000000013FFC5000-memory.dmp	themida
behavioral2/memory/1132-59-0x000000013F420000-0x000000013FFC5000-memory.dmp	themida
behavioral2/memory/1132-60-0x000000013F420000-0x000000013FFC5000-memory.dmp	themida
behavioral2/memory/1132-61-0x000000013F420000-0x000000013FFC5000-memory.dmp	themida
behavioral2/memory/1132-62-0x000000013F420000-0x000000013FFC5000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

Akira.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA Akira.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

Akira.exe

pid process

1132 Akira.exe

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

pid	process
1132	Akira.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

Akira.execmd.exe

description	pid	process	target process
PID 1132 wrote to memory of 1960	1132	Akira.exe	cmd.exe
PID 1132 wrote to memory of 1960	1132	Akira.exe	cmd.exe
PID 1132 wrote to memory of 1960	1132	Akira.exe	cmd.exe
PID 1960 wrote to memory of 1888	1960	cmd.exe	certutil.exe
PID 1960 wrote to memory of 1888	1960	cmd.exe	certutil.exe
PID 1960 wrote to memory of 1888	1960	cmd.exe	certutil.exe
PID 1960 wrote to memory of 1624	1960	cmd.exe	find.exe
PID 1960 wrote to memory of 1624	1960	cmd.exe	find.exe
PID 1960 wrote to memory of 1624	1960	cmd.exe	find.exe
PID 1960 wrote to memory of 976	1960	cmd.exe	find.exe
PID 1960 wrote to memory of 976	1960	cmd.exe	find.exe
PID 1960 wrote to memory of 976	1960	cmd.exe	find.exe

C:\Users\Admin\AppData\Local\Temp\Akira.exe
"C:\Users\Admin\AppData\Local\Temp\Akira.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 WriteProcessMemory
PID:1132

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\Akira.exe" MD5 | find /i /v "md5" | find /i /v "certutil"
2⤵
- Suspicious use of WriteProcessMemory
PID:1960

C:\Windows\system32\certutil.exe
certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\Akira.exe" MD5
3⤵
PID:1888

C:\Windows\system32\find.exe
find /i /v "md5"
3⤵
PID:1624

C:\Windows\system32\find.exe
find /i /v "certutil"
3⤵
PID:976

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/1132-54-0x000000013F420000-0x000000013FFC5000-memory.dmp

Filesize
11.6MB

Download
memory/1132-55-0x000000013F420000-0x000000013FFC5000-memory.dmp

Filesize
11.6MB

Download
memory/1132-56-0x000000013F420000-0x000000013FFC5000-memory.dmp

Filesize
11.6MB

Download
memory/1132-57-0x000000013F420000-0x000000013FFC5000-memory.dmp

Filesize
11.6MB

Download
memory/1132-58-0x000000013F420000-0x000000013FFC5000-memory.dmp

Filesize
11.6MB

Download
memory/1132-59-0x000000013F420000-0x000000013FFC5000-memory.dmp

Filesize
11.6MB

Download
memory/1132-60-0x000000013F420000-0x000000013FFC5000-memory.dmp

Filesize
11.6MB

Download
memory/1132-61-0x000000013F420000-0x000000013FFC5000-memory.dmp

Filesize
11.6MB

Download
memory/1132-62-0x000000013F420000-0x000000013FFC5000-memory.dmp

Filesize
11.6MB

Download