39bf189b0892f7685e6c68d56bf215de0c6c9ec689bd792f69d7ce17218a3432

Analysis

user interaction
yes
max time kernel
150s
max time network
151s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
11/08/2026, 17:28

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General

Target
MicrosoftEdgeUpdate.exe
Size 4.9MB
Sample260811-v1237sxenc
SHA256 39bf189b0892f7685e6c68d56bf215de0c6c9ec689bd792f69d7ce17218a3432
MD5 9c0b443c60ee68767965a0b0f12613af
SHA1 a52202b253524b80a6c1b2ebdc4c3acd5951ff8c
SHA512 ff7df32eb04ab29c8cbcaaf3fe351a59268dab85e44b4eb8f30ba9e469a941c4020c8013eb846bef97789d2417900848aa4a166312600aad4252e0689c34193d
SSDEEP 98304:HYN5uaWuaN173AAlcalLJ9pQcK3skA6T81gRr5jLRajLMdwXMUd6gyE8EghVYnI:4NQa7IlHpQcWTUgV5XI/vMqa/hC
TLSH
T14036339C42EB3FABD4FD0031DAB58D447B8152E51DAEE857B683162095FA49CC50FCB8
MD5 SHA1 SHA512 SSDEEP TLSH

Score

9^/10

defense_evasion execution themida trojan

Malware Config

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	MicrosoftEdgeUpdate.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	MicrosoftEdgeUpdate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	MicrosoftEdgeUpdate.exe

Themida packer 6 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral2/memory/1840-0-0x0000000140000000-0x0000000140BBA000-memory.dmp	themida
behavioral2/memory/1840-2-0x0000000140000000-0x0000000140BBA000-memory.dmp	themida
behavioral2/memory/1840-1-0x0000000140000000-0x0000000140BBA000-memory.dmp	themida
behavioral2/memory/1840-3-0x0000000140000000-0x0000000140BBA000-memory.dmp	themida
behavioral2/memory/1840-4-0x0000000140000000-0x0000000140BBA000-memory.dmp	themida
behavioral2/memory/1840-5-0x0000000140000000-0x0000000140BBA000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs

defense_evasion trojan

System Information Discovery

T1082

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

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1840	MicrosoftEdgeUpdate.exe

Executes a command shell one-liner 1 TTPs 3 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
5156	cmd.exe
5932	cmd.exe
3348	cmd.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
2800	timeout.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1840 wrote to memory of 5156	1840	MicrosoftEdgeUpdate.exe	90
PID 5156 wrote to memory of 552	5156	cmd.exe	91
PID 5156 wrote to memory of 2060	5156	cmd.exe	92
PID 5156 wrote to memory of 1144	5156	cmd.exe	93
PID 1840 wrote to memory of 5932	1840	MicrosoftEdgeUpdate.exe	94
PID 5932 wrote to memory of 3348	5932	cmd.exe	95
PID 3348 wrote to memory of 2800	3348	cmd.exe	99

C:\Users\Admin\AppData\Local\Temp\MicrosoftEdgeUpdate.exe
"C:\Users\Admin\AppData\Local\Temp\MicrosoftEdgeUpdate.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:1840
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\MicrosoftEdgeUpdate.exe" MD5 | find /i /v "md5" | find /i /v "certutil"
  2⤵
  - Executes a command shell one-liner
  - Suspicious use of WriteProcessMemory
  PID:5156
- - C:\Windows\system32\certutil.exe
    certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\MicrosoftEdgeUpdate.exe" MD5
    3⤵
    PID:552
- - C:\Windows\system32\find.exe
    find /i /v "md5"
    3⤵
    PID:2060
- - C:\Windows\system32\find.exe
    find /i /v "certutil"
    3⤵
    PID:1144
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c start cmd /C "color b && title Error && echo CURL Error: Failure when receiving data from the peer && timeout /t 5"
  2⤵
  - Executes a command shell one-liner
  - Suspicious use of WriteProcessMemory
  PID:5932
- - C:\Windows\system32\cmd.exe
    cmd /C "color b && title Error && echo CURL Error: Failure when receiving data from the peer && timeout /t 5"
    3⤵
    - Executes a command shell one-liner
    - Suspicious use of WriteProcessMemory
    PID:3348
  - - C:\Windows\system32\timeout.exe
      timeout /t 5
      4⤵
      Delays execution with timeout.exe
      PID:2800

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Windows Command Shell

T1059.003

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/1840-0-0x0000000140000000-0x0000000140BBA000-memory.dmp

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memory/1840-2-0x0000000140000000-0x0000000140BBA000-memory.dmp

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memory/1840-1-0x0000000140000000-0x0000000140BBA000-memory.dmp

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memory/1840-3-0x0000000140000000-0x0000000140BBA000-memory.dmp

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memory/1840-4-0x0000000140000000-0x0000000140BBA000-memory.dmp

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memory/1840-5-0x0000000140000000-0x0000000140BBA000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads