578628543bc775070cc17be084f85f0a0ac23a260b3af2c46e546e76a5f1527b

Analysis

max time kernel
23s
max time network
18s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
12-02-2024 18:00

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General

Target

toteslegit.exe
Size

3.9MB
MD5

0fe17c511fa812e99dbf307cf3763ce6
SHA1

4e8149a9c14fdf2492fd801d8d4f593d0547f9c2
SHA256

578628543bc775070cc17be084f85f0a0ac23a260b3af2c46e546e76a5f1527b
SHA512

9e9e0f509608245dc80ba60a1a4da6058a032994f9d5b076cb44c8942d1eda027bed964abe08cbf8cfd66fc5ff5d506c0d80c956b7989c464dea15dbd1dfbfe9
SSDEEP

98304:HDRtA0dje/D5x5Krjh3rO0e/iXA/8fjV+YDgdjwvOm/kPbbzJSb:bGD5cde/icMQugduOmMPbY

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:

toteslegit.exe

description ioc process

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

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

toteslegit.exe

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

Themida packer 6 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/2252-0-0x0000000140000000-0x0000000140A4B000-memory.dmp	themida
behavioral1/memory/2252-2-0x0000000140000000-0x0000000140A4B000-memory.dmp	themida
behavioral1/memory/2252-3-0x0000000140000000-0x0000000140A4B000-memory.dmp	themida
behavioral1/memory/2252-4-0x0000000140000000-0x0000000140A4B000-memory.dmp	themida
behavioral1/memory/2252-5-0x0000000140000000-0x0000000140A4B000-memory.dmp	themida
behavioral1/memory/2252-7-0x0000000140000000-0x0000000140A4B000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

toteslegit.exe

description ioc process

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

Processes:

toteslegit.exe

pid process

2252 toteslegit.exe

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

pid	process
2252	toteslegit.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

toteslegit.exe

description	pid	process	target process
PID 2252 wrote to memory of 2416	2252	toteslegit.exe	WerFault.exe
PID 2252 wrote to memory of 2416	2252	toteslegit.exe	WerFault.exe
PID 2252 wrote to memory of 2416	2252	toteslegit.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\toteslegit.exe
"C:\Users\Admin\AppData\Local\Temp\toteslegit.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:2252

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 2252 -s 100
2⤵
PID:2416

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2252-0-0x0000000140000000-0x0000000140A4B000-memory.dmp

Filesize
10.3MB

Download
memory/2252-1-0x0000000077000000-0x00000000771A9000-memory.dmp

Filesize
1.7MB

Download
memory/2252-2-0x0000000140000000-0x0000000140A4B000-memory.dmp

Filesize
10.3MB

Download
memory/2252-3-0x0000000140000000-0x0000000140A4B000-memory.dmp

Filesize
10.3MB

Download
memory/2252-4-0x0000000140000000-0x0000000140A4B000-memory.dmp

Filesize
10.3MB

Download
memory/2252-5-0x0000000140000000-0x0000000140A4B000-memory.dmp

Filesize
10.3MB

Download
memory/2252-7-0x0000000140000000-0x0000000140A4B000-memory.dmp

Filesize
10.3MB

Download
memory/2252-8-0x0000000077000000-0x00000000771A9000-memory.dmp

Filesize
1.7MB

Download