356d67eb809b195349d0e32b42a1a6aef4a0d48049dabd3f37d8bca246f191e5

Analysis

max time kernel
29s
max time network
31s
platform
windows7_x64
resource
win7-20221111-es
resource tags

arch:x64arch:x86image:win7-20221111-eslocale:es-esos:windows7-x64systemwindows
submitted
29-12-2022 22:04

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General

Target

Install.exe
Size

4.2MB
MD5

d8f278167aabd0d6deaf0454ad8c25ed
SHA1

bebd64d7584a07cdc9f3334bbeaffe36f137ca67
SHA256

356d67eb809b195349d0e32b42a1a6aef4a0d48049dabd3f37d8bca246f191e5
SHA512

be6ba32c409cae1647cf2b6dbdc094445103ae5b861a43fb32e3f29f86e256c8f31c25d351f16f001a724fc17f441487cea4b7b6f38fd28b38d1965d605eb5d9
SSDEEP

49152:g6O26LhjgYwGesxEbQfe1mBFmS+fglb54/Mf5WiYbogXdDtyxdNZMhPopcNcIfZy:gbBtDePbeeuILgX40skn0Pyc2IfeEy

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:

Install.exe

description ioc process

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

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

Install.exe

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

Themida packer 2 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/2016-55-0x00000000008D0000-0x0000000001500000-memory.dmp	themida
behavioral1/memory/2016-59-0x00000000008D0000-0x0000000001500000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

Install.exe

description ioc process

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

Processes:

Install.exe

pid process

2016 Install.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

816 2016 WerFault.exe Install.exe

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

pid	process
2016	Install.exe

pid	pid_target	process	target process
816	2016	WerFault.exe	Install.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

Install.exe

description	pid	process	target process
PID 2016 wrote to memory of 816	2016	Install.exe	WerFault.exe
PID 2016 wrote to memory of 816	2016	Install.exe	WerFault.exe
PID 2016 wrote to memory of 816	2016	Install.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\Install.exe
"C:\Users\Admin\AppData\Local\Temp\Install.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:2016

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 2016 -s 696
2⤵
- Program crash
PID:816

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
1⤵
PID:932

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/816-58-0x0000000000000000-mapping.dmp

Download
memory/932-61-0x000007FEFBAA1000-0x000007FEFBAA3000-memory.dmp

Filesize
8KB

Download
memory/2016-55-0x00000000008D0000-0x0000000001500000-memory.dmp

Filesize
12.2MB

Download
memory/2016-56-0x00000000008D0000-0x0000000001500000-memory.dmp

Filesize
12.2MB

Download
memory/2016-57-0x0000000077280000-0x0000000077429000-memory.dmp

Filesize
1.7MB

Download
memory/2016-59-0x00000000008D0000-0x0000000001500000-memory.dmp

Filesize
12.2MB

Download
memory/2016-60-0x0000000077280000-0x0000000077429000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads