8c1903c5c355cc28369efd82f31ac34b40562b6fd38c816a43cb4faebe16a310

Analysis

max time kernel
90s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
05/02/2024, 02:19

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General

Target
90c768f34ae471b39548bb6bae4f8023.exe
Size 3.2MB
Sample240205-cr7cfsacbk
SHA256 8c1903c5c355cc28369efd82f31ac34b40562b6fd38c816a43cb4faebe16a310
MD5 90c768f34ae471b39548bb6bae4f8023
SHA1 bfdbb5d691cdce802741b8c48af82e274acb453f
SHA512 e19a5ab628f76cae7c549497d7fe324f6380d26dd3163463841adf279427c9a1d5ebfaf97fc3b1455aff526f4ce40f4d9136552d437fe6bc38fd93444123e3ef
SSDEEP 49152:/dyCjoP4YyXfsLHb1jCno1Ii/8NERGrzARy4QhcXTMF5Wxp+lW1aM0M5WoAtu:/ECjoP4p07bhcoqBNeRGATMF+pQXve
MD5 SHA1 SHA512 SSDEEP

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	90c768f34ae471b39548bb6bae4f8023.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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	90c768f34ae471b39548bb6bae4f8023.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	90c768f34ae471b39548bb6bae4f8023.exe

Themida packer 3 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral2/memory/4880-13-0x0000000000120000-0x00000000009E4000-memory.dmp	themida
behavioral2/memory/4880-12-0x0000000000120000-0x00000000009E4000-memory.dmp	themida
behavioral2/memory/4880-20-0x0000000000120000-0x00000000009E4000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	90c768f34ae471b39548bb6bae4f8023.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4880	90c768f34ae471b39548bb6bae4f8023.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4880 set thread context of 3628	4880	90c768f34ae471b39548bb6bae4f8023.exe	85

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1268	3628	WerFault.exe	85

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4880 wrote to memory of 3628	4880	90c768f34ae471b39548bb6bae4f8023.exe	85
PID 4880 wrote to memory of 3628	4880	90c768f34ae471b39548bb6bae4f8023.exe	85
PID 4880 wrote to memory of 3628	4880	90c768f34ae471b39548bb6bae4f8023.exe	85
PID 4880 wrote to memory of 3628	4880	90c768f34ae471b39548bb6bae4f8023.exe	85
PID 4880 wrote to memory of 3628	4880	90c768f34ae471b39548bb6bae4f8023.exe	85
PID 4880 wrote to memory of 3628	4880	90c768f34ae471b39548bb6bae4f8023.exe	85
PID 4880 wrote to memory of 3628	4880	90c768f34ae471b39548bb6bae4f8023.exe	85
PID 4880 wrote to memory of 3628	4880	90c768f34ae471b39548bb6bae4f8023.exe	85
PID 4880 wrote to memory of 3628	4880	90c768f34ae471b39548bb6bae4f8023.exe	85

C:\Users\Admin\AppData\Local\Temp\90c768f34ae471b39548bb6bae4f8023.exe
"C:\Users\Admin\AppData\Local\Temp\90c768f34ae471b39548bb6bae4f8023.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 SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4880
- C:\Users\Admin\AppData\Local\Temp\90c768f34ae471b39548bb6bae4f8023.exe
  C:\Users\Admin\AppData\Local\Temp\90c768f34ae471b39548bb6bae4f8023.exe
  2⤵
  PID:3628
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3628 -s 12
    3⤵
    - Program crash
    PID:1268

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3628 -ip 3628
1⤵
PID:2724

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

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Downloads

memory/3628-17-0x0000000000400000-0x0000000000432000-memory.dmp

Download

memory/4880-7-0x0000000075CE0000-0x0000000075DD0000-memory.dmp

Download

memory/4880-12-0x0000000000120000-0x00000000009E4000-memory.dmp

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memory/4880-4-0x0000000075CE0000-0x0000000075DD0000-memory.dmp

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memory/4880-6-0x0000000075CE0000-0x0000000075DD0000-memory.dmp

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memory/4880-9-0x0000000077844000-0x0000000077846000-memory.dmp

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memory/4880-8-0x0000000075CE0000-0x0000000075DD0000-memory.dmp

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memory/4880-0-0x0000000000120000-0x00000000009E4000-memory.dmp

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memory/4880-3-0x0000000075CE0000-0x0000000075DD0000-memory.dmp

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memory/4880-13-0x0000000000120000-0x00000000009E4000-memory.dmp

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memory/4880-5-0x0000000075CE0000-0x0000000075DD0000-memory.dmp

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memory/4880-14-0x0000000005590000-0x0000000005606000-memory.dmp

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memory/4880-15-0x0000000003440000-0x000000000345E000-memory.dmp

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memory/4880-16-0x0000000005C90000-0x0000000006234000-memory.dmp

Download

memory/4880-20-0x0000000000120000-0x00000000009E4000-memory.dmp

Download

memory/4880-21-0x0000000075CE0000-0x0000000075DD0000-memory.dmp

Download

memory/4880-2-0x0000000075CE0000-0x0000000075DD0000-memory.dmp

Download

memory/4880-1-0x0000000075CE0000-0x0000000075DD0000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads