3f28c8b272ee406a12f4fd3849eb62704db0b7bcdcb90fddcce3986d15661d20

Analysis

max time kernel
150s
max time network
145s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
01/10/2026, 07:00

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General

Target
3f28c8b272ee406a12f4fd3849eb62704db0b7bcdcb90fddcce3986d15661d20.exe
Size 14.7MB
Sample261001-hs47dadc39
SHA256 3f28c8b272ee406a12f4fd3849eb62704db0b7bcdcb90fddcce3986d15661d20
MD5 9e9fc8d27d4b36f06a6cfae9c995acc4
SHA1 f57e7a3d385811ca53287d7d8975e44d7be322c8
SHA512 d35a05831b86d510c7fb2af009d5ab43882ecf1014d27e523c34698d7a76df5e0b0d390b7101aae0bcf90cb96ba7309009abbf16b3bea572a2d18226551efde3
SSDEEP 393216:FPu8PPKOgbEcxOuIKesuMj4Ic2TNlzM+xGVIfiuPC:qOIcuJuiTfzfEEiu
TLSH
T1E8F633877422315FC161CF3342DA69B025360CFA3E005E7AA99967AF53E3B3035679B6
MD5 SHA1 SHA512 SSDEEP TLSH

Score

9^/10

defense_evasion discovery 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__	kfc.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	kfc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	kfc.exe

Executes dropped EXE 1 IoCs

pid	Process
1260	kfc.exe

Themida packer 5 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral2/files/0x001200000001c545-14.dat	themida
behavioral2/memory/1260-16-0x0000000140000000-0x000000014098F000-memory.dmp	themida
behavioral2/memory/1260-17-0x0000000140000000-0x000000014098F000-memory.dmp	themida
behavioral2/memory/1260-18-0x0000000140000000-0x000000014098F000-memory.dmp	themida
behavioral2/memory/1260-21-0x0000000140000000-0x000000014098F000-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	kfc.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 TTPs 2 IoCs

defense_evasion

Debugger Evasion

T1622

pid	Process
1260	kfc.exe
1260	kfc.exe

Executes a command shell one-liner 1 TTPs 1 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
2612	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3f28c8b272ee406a12f4fd3849eb62704db0b7bcdcb90fddcce3986d15661d20.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
2612	cmd.exe
3156	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3156	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
912	3f28c8b272ee406a12f4fd3849eb62704db0b7bcdcb90fddcce3986d15661d20.exe
912	3f28c8b272ee406a12f4fd3849eb62704db0b7bcdcb90fddcce3986d15661d20.exe
912	3f28c8b272ee406a12f4fd3849eb62704db0b7bcdcb90fddcce3986d15661d20.exe
912	3f28c8b272ee406a12f4fd3849eb62704db0b7bcdcb90fddcce3986d15661d20.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
912	3f28c8b272ee406a12f4fd3849eb62704db0b7bcdcb90fddcce3986d15661d20.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeLockMemoryPrivilege	1260	kfc.exe
Token: SeSecurityPrivilege	1260	kfc.exe
Token: SeProfSingleProcessPrivilege	1260	kfc.exe
Token: SeDebugPrivilege	1260	kfc.exe
Token: SeLoadDriverPrivilege	1260	kfc.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
912	3f28c8b272ee406a12f4fd3849eb62704db0b7bcdcb90fddcce3986d15661d20.exe
912	3f28c8b272ee406a12f4fd3849eb62704db0b7bcdcb90fddcce3986d15661d20.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 912 wrote to memory of 1260	912	3f28c8b272ee406a12f4fd3849eb62704db0b7bcdcb90fddcce3986d15661d20.exe	90
PID 1260 wrote to memory of 2612	1260	kfc.exe	91
PID 2612 wrote to memory of 3156	2612	cmd.exe	93

C:\Users\Admin\AppData\Local\Temp\3f28c8b272ee406a12f4fd3849eb62704db0b7bcdcb90fddcce3986d15661d20.exe
"C:\Users\Admin\AppData\Local\Temp\3f28c8b272ee406a12f4fd3849eb62704db0b7bcdcb90fddcce3986d15661d20.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:912
- C:\Users\Admin\AppData\Local\Temp\kfc.exe
  kfc.exe
  2⤵
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Checks BIOS information in registry
  - Executes dropped EXE
  - Checks whether UAC is enabled
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1260
- - C:\Windows\SYSTEM32\cmd.exe
    cmd /c ping 127.0.0.1 -n 2 > nul & del /f /q "C:\Users\Admin\AppData\Local\Temp\kfc.exe"
    3⤵
    - Executes a command shell one-liner
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:2612
  - - C:\Windows\system32\PING.EXE
      ping 127.0.0.1 -n 2
      4⤵
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:3156

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

Debugger Evasion

T1622

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Debugger Evasion

T1622

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

kfc.exe

Path C:\Users\Admin\AppData\Local\Temp\kfc.exe
Size 3.6MB
SHA256 f54b69dc0143a4dcc22ca0d9360b4700e26f2c17538534c93ab4e87aacc3160b
MD5 a3804814bf812f17d85c0bc09ef3b57d
SHA1 0c7a4a5463ed0c8a92e68ac9c1211e76a4943114
SHA512 a5d2bcb493c094f15a290d040b33c49a512911894068ccababab233ab3528330ff91e45d2d1ade1df054b0bae518e83901bde0ca7e76be85c13c8972c6b4daab
SSDEEP 98304:GOmyKtTjnrSNoWfkoIL+qW2hIq4WJ3IA9tPJhKbfAvbI:pbsXn8o4VQIqtJ3lDTvbI
TLSH
T1AA0633393E62AB97F0905DF1ED4862970C3902CFED75B0855B6C8AD1E24788F072D59B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/912-4-0x00000000046C0000-0x00000000046C1000-memory.dmp

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memory/912-23-0x000000000188E000-0x0000000001A1F000-memory.dmp

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memory/912-5-0x00000000046D0000-0x00000000046D1000-memory.dmp

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memory/912-1-0x0000000002EA0000-0x0000000002EA1000-memory.dmp

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memory/912-3-0x0000000002ED0000-0x0000000002ED1000-memory.dmp

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memory/912-0-0x000000000188E000-0x0000000001A1F000-memory.dmp

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memory/912-6-0x00000000046E0000-0x00000000046E1000-memory.dmp

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memory/912-10-0x0000000000400000-0x00000000028C7000-memory.dmp

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memory/912-24-0x0000000000400000-0x00000000028C7000-memory.dmp

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memory/912-2-0x0000000002EC0000-0x0000000002EC1000-memory.dmp

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memory/912-22-0x0000000000400000-0x00000000028C7000-memory.dmp

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memory/1260-17-0x0000000140000000-0x000000014098F000-memory.dmp

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memory/1260-21-0x0000000140000000-0x000000014098F000-memory.dmp

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memory/1260-20-0x00007FFA61963000-0x00007FFA61965000-memory.dmp

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memory/1260-18-0x0000000140000000-0x000000014098F000-memory.dmp

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memory/1260-16-0x0000000140000000-0x000000014098F000-memory.dmp

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