d3f47cd85c525a0c3ed855949bf27023c27b24c51d388166d72d4fa8cae4c2f5

Analysis

user interaction
yes
max time kernel
49s
max time network
52s
platform
windows10-ltsc_2021_x64
resource
win10ltsc2021-20260513-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
submitted
09/08/2026, 00:08

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Reason

Machine shutdown

General

Target
d3f47cd85c525a0c3ed855949bf27023c27b24c51d388166d72d4fa8cae4c2f5.exe
Size 5.1MB
Sample260809-afef7aer8t
SHA256 d3f47cd85c525a0c3ed855949bf27023c27b24c51d388166d72d4fa8cae4c2f5
MD5 86a1cbee2b7dc5d64051c83c82c8d02b
SHA1 55d82d17f7f10d088909d0cb7116969d12308974
SHA512 6720ecb2799185bf2a03259766e3dd38aeaec674a3a28e657bd55131b1e9fb18fab118afc3aa7881de56d7af36d60bf8b29449065ba32c5cf0dea38fb892ecbb
SSDEEP 98304:7uqHKZ37xZzmTxQKRmwkiL6W7kyDFAuG1RM+fWPiaL4Ghy22hY:7DqZLxA1QKR1kiL6W7quG1tSgGhy22e
TLSH
T19246331471CAF433F2721C3D4E28973B15696D092B136A8BAB8C296DD7F05C27E096F6
MD5 SHA1 SHA512 SSDEEP TLSH

Score

8^/10

defense_evasion discovery execution upx

Malware Config

Signatures

Disables Task Manager via registry modification
defense_evasion

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x0007000000028489-36.dat	acprotect

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1108628292-2849104889-3743975892-1000\Control Panel\International\Geo\Nation	d3f47cd85c525a0c3ed855949bf27023c27b24c51d388166d72d4fa8cae4c2f5.exe

Executes dropped EXE 1 IoCs

pid	Process
756	winlocker.exe

Loads dropped DLL 5 IoCs

pid	Process
756	winlocker.exe
756	winlocker.exe
756	winlocker.exe
756	winlocker.exe
756	winlocker.exe

UPX packed file 11 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/files/0x000b00000000670f-13.dat	upx
behavioral1/memory/756-23-0x0000000000400000-0x0000000000AAB000-memory.dmp	upx
behavioral1/memory/756-25-0x0000000000400000-0x0000000000AAB000-memory.dmp	upx
behavioral1/files/0x0007000000028489-36.dat	upx
behavioral1/memory/756-38-0x0000000005230000-0x00000000052B2000-memory.dmp	upx
behavioral1/memory/756-37-0x0000000005230000-0x00000000052B2000-memory.dmp	upx
behavioral1/memory/756-40-0x0000000000400000-0x0000000000AAB000-memory.dmp	upx
behavioral1/memory/756-41-0x0000000000400000-0x0000000000AAB000-memory.dmp	upx
behavioral1/memory/756-45-0x0000000005230000-0x00000000052B2000-memory.dmp	upx
behavioral1/memory/756-52-0x0000000000400000-0x0000000000AAB000-memory.dmp	upx
behavioral1/memory/756-58-0x0000000000400000-0x0000000000AAB000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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
3948	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 4 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	d3f47cd85c525a0c3ed855949bf27023c27b24c51d388166d72d4fa8cae4c2f5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winlocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe

Kills process with taskkill 1 IoCs

defense_evasion

pid	Process
788	taskkill.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglow = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History\AutoColor = "0"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\StartColorMenu = "4288567808"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentColorMenu = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\AccentColor = "4292311040"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColor = "3288365271"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationAfterglowBalance = "10"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationBlurBalance = "1"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\EnableWindowColorization = "134"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent	LogonUI.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Accent\AccentPalette = a6d8ff0076b9ed00429ce3000078d700005a9e000042750000264200f7630c00	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationColorBalance = "89"	LogonUI.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM\ColorizationGlassAttribute = "1"	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Themes\History	LogonUI.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\DWM	LogonUI.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	788	taskkill.exe
Token: SeShutdownPrivilege	756	winlocker.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
112	LogonUI.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5028 wrote to memory of 756	5028	d3f47cd85c525a0c3ed855949bf27023c27b24c51d388166d72d4fa8cae4c2f5.exe	84
PID 756 wrote to memory of 3948	756	winlocker.exe	86
PID 3948 wrote to memory of 788	3948	cmd.exe	88

C:\Users\Admin\AppData\Local\Temp\d3f47cd85c525a0c3ed855949bf27023c27b24c51d388166d72d4fa8cae4c2f5.exe
"C:\Users\Admin\AppData\Local\Temp\d3f47cd85c525a0c3ed855949bf27023c27b24c51d388166d72d4fa8cae4c2f5.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5028
- C:\Users\Admin\AppData\Local\Temp\winlocker.exe
  "C:\Users\Admin\AppData\Local\Temp\winlocker.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:756
- - C:\Windows\SysWOW64\cmd.exe
    cmd.exe /c "TASKKILL /F /IM "explorer.exe""
    3⤵
    - Executes a command shell one-liner
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3948
  - - C:\Windows\SysWOW64\taskkill.exe
      TASKKILL /F /IM "explorer.exe"
      4⤵
      System Location Discovery: System Language Discovery
      Kills process with taskkill
      Suspicious use of AdjustPrivilegeToken
      PID:788

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x4 /state0:0xa3a20855 /state1:0x41c64e6d
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of SetWindowsHookEx
PID:112

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

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

php_squall.dll

Path C:\Users\Admin\AppData\Local\Temp\ext\php_squall.dll
Size 126KB
SHA256 7587e29919a56b6f94675e49208e1ae908bcab09363734d846502c3b4ad54326
MD5 6ff84bc8812b8c079fa6de68cf36ab59
SHA1 ca8789bbd7b0193221f9518e6b2f5b319c32b717
SHA512 5ef9d9c1038b055186147cbfcfbedf54d6ecc235468ef4968630eb03368cf2c3f39dd600f1ebf9ecfe9b7cc134235b01a983a4fe9b6f292775244f837ec2e81f
SSDEEP 3072:h8gAarPzetbuKt87iwdwfWWO5iqMS5GZR+rPSDIF9Y:h8gAy4ildwfWmoyM
TLSH
T13DC33A1BF191C0B1D0630AFC6D89E6E5D93AFB511D6E04AF78E40F0E09AAF49A65D1C3
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

navalny.wma

Path C:\Users\Admin\AppData\Local\Temp\navalny.wma
Size 2.3MB
SHA256 a2bb3b4646344762852947fe006d03f0a6d390bbe8a1d9921be2ac0ba657b914
MD5 5944589557a469c108c45b6b11ab44d6
SHA1 46c96899e0aeb44fd4593d2d58c35f7ce6800f60
SHA512 399662d6d97e0911e07808deee6448794db039e6cca485052d642b975a52545c0203eebb1ca6eea8198a46ebfc5263fbef6383fe89df001fcdea0144fbf2e0b4
SSDEEP 24576:gWuhJdBg8PAOCtgKN/brKoOWrnhkI1sQ5ikc9eytSgaeQwFIJeKOX2wl:ZuhJQnOCXxbrlhkcswbyINwFIJvOmwl
TLSH
T176B5BE2BDD645A6DC895FBF3A9A668390283CA05CF32D80BE1F444193367FFC695128D
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

php5ts.dll

Path C:\Users\Admin\AppData\Local\Temp\php5ts.dll
Size 6.5MB
SHA256 9b2c8b8c4cec301c4303f58ca4e8b261d516f10feb24573b092dfccc263baea4
MD5 c9aff68f6673fae7580527e8c76805b6
SHA1 bb62cc1db82cfe07a8c08a36446569dfc9c76d10
SHA512 c7836f46e535046562046fdd8d3264cd712a78c0f41eab152c88ea91b17d34f000e2387ded7e9e7b3410332354aabf8ca7d37729eb68e46ab5ce58936e63ac56
SSDEEP 98304:NIj1qYT5UnbVloeFVRFHFq0N8WaumOQp0BAUZLtYX:KEPLPFHFZNKumOQp0VRE
TLSH
T18766AF42EB92D0B5E48921FA0177AB3E6F38DF1543154AC3D5803E999E311E16E3E29F
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

squall.dll

Path C:\Users\Admin\AppData\Local\Temp\squall.dll
Size 177KB
SHA256 05a30beb390ea86ca143a7e8f03c0a7aab7ddaf63229ee0d76366a217db9d864
MD5 b971f35ffcbbb307761eb89a21df12a7
SHA1 70de69bc3a53603eab2d83eae1363ce2448207cc
SHA512 ea01509f808daeb4d5404c86162191f8f43a8fb009dc2be45b6d32e730b457c16c07d0ca56f56eb5f2f212507b7fa25da86dd1676ae480b147e633cacbc2b2c8
SSDEEP 3072:FtUjJ4Phsj6TExMQLvDT7vk8ER7QxMkDfXfxmbcIJ0JCkIbcns5doOeb3G+j+cXa:UyL4drI8K0FZtLIbEszebW+pXna
TLSH
T1CE041274DA8F9694EDB529301BCDB6542247692E54BFAE808F20CB409579CE3F3D3983
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

winlocker.exe

Path C:\Users\Admin\AppData\Local\Temp\winlocker.exe
Size 3.1MB
SHA256 43eef3b68ebaab3efbe15eb3046281e380aa78003a0eda8757a9e44f6a59ec7f
MD5 9f93492e155d1bf27b8077e991e6a5a0
SHA1 159d72ad8074b56562b1014393be24b402c3af39
SHA512 270bc608ac79ca92c8db6a1455a26f24d80844badc514d5db29acade5748513d8378e3d6d803e9cfb7bdab6482a992b7c6a60845b255f3be5cbf92a0a69db918
SSDEEP 24576:tCqA01Dj2HE4u5A+hcnYwXZsIFWDGMuSeqbBY:1BeRuv2ZxFiGxqbBY
TLSH
T1EFE5C0B2E613592AE4135334355EC8BD53237F6E7A3AEA0423DCBD6777323821D590A2
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/756-33-0x00000000050B0000-0x00000000050DA000-memory.dmp

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memory/756-38-0x0000000005230000-0x00000000052B2000-memory.dmp

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memory/756-37-0x0000000005230000-0x00000000052B2000-memory.dmp

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memory/756-25-0x0000000000400000-0x0000000000AAB000-memory.dmp

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memory/756-23-0x0000000000400000-0x0000000000AAB000-memory.dmp

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memory/756-24-0x0000000000AAA000-0x0000000000AAB000-memory.dmp

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memory/756-40-0x0000000000400000-0x0000000000AAB000-memory.dmp

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memory/756-41-0x0000000000400000-0x0000000000AAB000-memory.dmp

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memory/756-45-0x0000000005230000-0x00000000052B2000-memory.dmp

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memory/756-43-0x00000000050B0000-0x00000000050DA000-memory.dmp

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memory/756-52-0x0000000000400000-0x0000000000AAB000-memory.dmp

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memory/756-58-0x0000000000400000-0x0000000000AAB000-memory.dmp

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Analysis

Sharing

Errors

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads