b6fbd300520e46f761b778cfc7595b43db385c79a1d7e4c4ce40e782f78a1c01

Analysis

max time kernel
141s
max time network
130s
platform
windows7_x64
resource
win7-20231023-en
resource tags

arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
submitted
16-11-2023 07:41

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General

Target

公司资料.exe
Size

3.8MB
MD5

dc2e923303897fb5004c34693dc2eb74
SHA1

92006b30ecda6a1c091d9f7f8a4c1f060f3b9188
SHA256

6cb75a4a8d2dbfaca87e837cf411fde1bb5b0cffd9a09f5e8bb077d9b385a446
SHA512

606f67640ad9be15b4275f409b430c476150219bee941a69adf4519dc229cbcd6ea20e71bff8be9204916682731941e0c315d1421dc115115cc1ae78bc32e807
SSDEEP

98304:GgqM4j53BslobUytMfeUUzeeQY+PSOs0/4lf:GQo3BXbUSXzdQ/0Nf

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:

公司资料.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 公司资料.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	公司资料.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:

公司资料.exe

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

Themida packer 11 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral9/memory/2412-0-0x000000013FD60000-0x00000001406CB000-memory.dmp	themida
behavioral9/memory/2412-1-0x000000013FD60000-0x00000001406CB000-memory.dmp	themida
behavioral9/memory/2412-2-0x000000013FD60000-0x00000001406CB000-memory.dmp	themida
behavioral9/memory/2412-3-0x000000013FD60000-0x00000001406CB000-memory.dmp	themida
behavioral9/memory/2412-4-0x000000013FD60000-0x00000001406CB000-memory.dmp	themida
behavioral9/memory/2412-5-0x000000013FD60000-0x00000001406CB000-memory.dmp	themida
behavioral9/memory/2412-6-0x000000013FD60000-0x00000001406CB000-memory.dmp	themida
behavioral9/memory/2412-7-0x000000013FD60000-0x00000001406CB000-memory.dmp	themida
behavioral9/memory/2412-8-0x000000013FD60000-0x00000001406CB000-memory.dmp	themida
behavioral9/memory/2412-9-0x000000013FD60000-0x00000001406CB000-memory.dmp	themida
behavioral9/memory/2412-10-0x000000013FD60000-0x00000001406CB000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

公司资料.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 公司资料.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

公司资料.exe

pid process

2412 公司资料.exe
2412 公司资料.exe
2412 公司资料.exe
2412 公司资料.exe

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

pid	process
2412	公司资料.exe
2412	公司资料.exe
2412	公司资料.exe
2412	公司资料.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

公司资料.exe

description	pid	process	target process
PID 2412 wrote to memory of 2792	2412	公司资料.exe	WerFault.exe
PID 2412 wrote to memory of 2792	2412	公司资料.exe	WerFault.exe
PID 2412 wrote to memory of 2792	2412	公司资料.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\公司资料.exe
"C:\Users\Admin\AppData\Local\Temp\公司资料.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2412

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 2412 -s 120
2⤵
PID:2792

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

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Downloads

memory/2412-0-0x000000013FD60000-0x00000001406CB000-memory.dmp

Filesize
9.4MB

Download
memory/2412-1-0x000000013FD60000-0x00000001406CB000-memory.dmp

Filesize
9.4MB

Download
memory/2412-2-0x000000013FD60000-0x00000001406CB000-memory.dmp

Filesize
9.4MB

Download
memory/2412-3-0x000000013FD60000-0x00000001406CB000-memory.dmp

Filesize
9.4MB

Download
memory/2412-4-0x000000013FD60000-0x00000001406CB000-memory.dmp

Filesize
9.4MB

Download
memory/2412-5-0x000000013FD60000-0x00000001406CB000-memory.dmp

Filesize
9.4MB

Download
memory/2412-6-0x000000013FD60000-0x00000001406CB000-memory.dmp

Filesize
9.4MB

Download
memory/2412-7-0x000000013FD60000-0x00000001406CB000-memory.dmp

Filesize
9.4MB

Download
memory/2412-8-0x000000013FD60000-0x00000001406CB000-memory.dmp

Filesize
9.4MB

Download
memory/2412-9-0x000000013FD60000-0x00000001406CB000-memory.dmp

Filesize
9.4MB

Download
memory/2412-10-0x000000013FD60000-0x00000001406CB000-memory.dmp

Filesize
9.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads