82439c65507183d1b2a3bd6ff94cec4bc5c700d100e6c16068d53d0f4c4c8c3e

Analysis

max time kernel
52s
max time network
57s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
02-04-2023 00:58

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General

Target

EPSONResetterPH.exe
Size

8.8MB
MD5

7b9e809d18e1d105581ef4757e684e73
SHA1

57f497aaabc0127d4a9565314130cc358ed78917
SHA256

82439c65507183d1b2a3bd6ff94cec4bc5c700d100e6c16068d53d0f4c4c8c3e
SHA512

4df891f7344149dd8d9d1e76358a1d20f0dda502fd8c5171e11e5fa5904c3b3ad8c4bc9d41e0868a8382359b65289c36f01d37850afa573f7b8fbf30e1d3f084
SSDEEP

196608:/fztI7J+3b5MLdfWjl2zxulDRKydZrB+zrXiK5I:3xvb5cdf6yxulcydZl6iAI

Score

9^/10

bootkit evasion persistence 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:

EPSONResetterPH.exe

description ioc process

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

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

EPSONResetterPH.exe

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

Identifies Wine through registry keys 2 TTPs 1 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

EPSONResetterPH.exe

description ioc process

Key opened \REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000\Software\Wine EPSONResetterPH.exe
Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

EPSONResetterPH.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA EPSONResetterPH.exe
Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
bootkit persistence

Bootkit
T1067

Processes:

EPSONResetterPH.exe

description ioc process

File opened for modification \??\PhysicalDrive0 EPSONResetterPH.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

EPSONResetterPH.exe

pid process

2040 EPSONResetterPH.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

EPSONResetterPH.exe

pid process

2040 EPSONResetterPH.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000\Software\Wine	EPSONResetterPH.exe

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

description	ioc	process
File opened for modification	\??\PhysicalDrive0	EPSONResetterPH.exe

pid	process
2040	EPSONResetterPH.exe

pid	process
2040	EPSONResetterPH.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

AUDIODG.EXE

description	pid	process
Token: 33	1604	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1604	AUDIODG.EXE
Token: 33	1604	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1604	AUDIODG.EXE

C:\Users\Admin\AppData\Local\Temp\EPSONResetterPH.exe
"C:\Users\Admin\AppData\Local\Temp\EPSONResetterPH.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Checks whether UAC is enabled
- Writes to the Master Boot Record (MBR)
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:2040

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
1⤵
PID:1904

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x40c
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1604

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Bootkit

T1067

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

Replay Monitor

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Downloads

memory/2040-54-0x0000000000400000-0x00000000018C6000-memory.dmp

Filesize
20.8MB

Download
memory/2040-57-0x0000000010000000-0x000000001001A000-memory.dmp

Filesize
104KB

Download
memory/2040-60-0x00000000071C0000-0x00000000071DB000-memory.dmp

Filesize
108KB

Download
memory/2040-62-0x00000000071C0000-0x00000000071DB000-memory.dmp

Filesize
108KB

Download
memory/2040-67-0x0000000010000000-0x000000001001A000-memory.dmp

Filesize
104KB

Download
memory/2040-68-0x00000000071C0000-0x00000000071DB000-memory.dmp

Filesize
108KB

Download
memory/2040-70-0x0000000010000000-0x000000001001A000-memory.dmp

Filesize
104KB

Download
memory/2040-71-0x00000000071C0000-0x00000000071DB000-memory.dmp

Filesize
108KB

Download
memory/2040-69-0x0000000000400000-0x00000000018C6000-memory.dmp

Filesize
20.8MB

Download