df4da6874570d3e753519898684bbad60378725d24f9557f5d5294fcfd795a29

Analysis

max time kernel
93s
max time network
101s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
30-06-2024 16:44

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General

Target

Nyx.exe
Size

3.5MB
MD5

00ec60cd1add4a2f61e48c7b0a6c810f
SHA1

174af7f09725d67d522e65066d3e3662da50a4e2
SHA256

df4da6874570d3e753519898684bbad60378725d24f9557f5d5294fcfd795a29
SHA512

244afaa72bea7b46633dbaf79bdac388dfaf190e88d3a7675d16b36cfaeb39e9b47f1dc6ac1ddc059c64e091dfff562460ac83f9e669e42c3f90ac9fc44c1003
SSDEEP

98304:zcwncs4fUCBRTna03MfhwbIZosECIMRvl:Ywnc3HdahZ4IgCr

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:

Nyx.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ Nyx.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:

Nyx.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion Nyx.exe
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion Nyx.exe

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

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

Themida packer 3 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/2944-10-0x0000000000330000-0x0000000000C70000-memory.dmp	themida
behavioral2/memory/2944-11-0x0000000000330000-0x0000000000C70000-memory.dmp	themida
behavioral2/memory/2944-17-0x0000000000330000-0x0000000000C70000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

Nyx.exe

description ioc process

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

Processes:

Nyx.exe

pid process

2944 Nyx.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2700 2944 WerFault.exe Nyx.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Nyx.exe

pid process

2944 Nyx.exe
2944 Nyx.exe

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

pid	process
2944	Nyx.exe

pid	pid_target	process	target process
2700	2944	WerFault.exe	Nyx.exe

pid	process
2944	Nyx.exe
2944	Nyx.exe

C:\Users\Admin\AppData\Local\Temp\Nyx.exe
"C:\Users\Admin\AppData\Local\Temp\Nyx.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 behavior: EnumeratesProcesses
PID:2944

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2944 -s 1476
2⤵
- Program crash
PID:2700

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 2944 -ip 2944
1⤵
PID:968

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/2944-0-0x0000000000330000-0x0000000000C70000-memory.dmp

Filesize
9.2MB

Download
memory/2944-5-0x00000000759B0000-0x0000000075AA0000-memory.dmp

Filesize
960KB

Download
memory/2944-4-0x00000000759B0000-0x0000000075AA0000-memory.dmp

Filesize
960KB

Download
memory/2944-3-0x00000000759B0000-0x0000000075AA0000-memory.dmp

Filesize
960KB

Download
memory/2944-2-0x00000000759B0000-0x0000000075AA0000-memory.dmp

Filesize
960KB

Download
memory/2944-1-0x00000000759D0000-0x00000000759D1000-memory.dmp

Filesize
4KB

Download
memory/2944-6-0x00000000759B0000-0x0000000075AA0000-memory.dmp

Filesize
960KB

Download
memory/2944-7-0x00000000759B0000-0x0000000075AA0000-memory.dmp

Filesize
960KB

Download
memory/2944-10-0x0000000000330000-0x0000000000C70000-memory.dmp

Filesize
9.2MB

Download
memory/2944-11-0x0000000000330000-0x0000000000C70000-memory.dmp

Filesize
9.2MB

Download
memory/2944-12-0x0000000006AB0000-0x0000000007054000-memory.dmp

Filesize
5.6MB

Download
memory/2944-13-0x00000000037A0000-0x0000000003832000-memory.dmp

Filesize
584KB

Download
memory/2944-14-0x0000000003770000-0x000000000377A000-memory.dmp

Filesize
40KB

Download
memory/2944-16-0x00000000759B0000-0x0000000075AA0000-memory.dmp

Filesize
960KB

Download
memory/2944-17-0x0000000000330000-0x0000000000C70000-memory.dmp

Filesize
9.2MB

Download