2b22c4fefa9c515d2aa64102ea0ba7df4108f2149af8dadc3321aeaf4a233afc

Analysis

max time kernel
150s
platform
windows11-21h2_x64
resource
win11-20260513-en
resource tags

arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
27/05/2026, 20:15

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General

Target
lc.exe
Size 323KB
Sample260527-y1q8gsbv21
SHA256 2b22c4fefa9c515d2aa64102ea0ba7df4108f2149af8dadc3321aeaf4a233afc
MD5 1aa256f9d7d19c161499b5bfab37fe37
SHA1 86408e6f82c92419763aa5035abf5686dfba3e4a
SHA512 4eb046c7ba25b9d2d01e81ca07555c383ca98bc298a8576e60be5157ee6a22f5e4ecf56208a1e09a5a85ee594d9956b3edf2b145e68f63c6763b8b5be8297b9f
SSDEEP 6144:r6e0UwTaano7cSCpMW90KImQinnVbTIEnQd/hwQBjrQi33v8U:r6e0UwToZPpwu3v
TLSH
T1C864AF9023BA867AC55DD6BFE061214E43F4B52AE543EB86BC8856ECDF47300D7912E3
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

defense_evasion persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1636999435-3883760687-346127294-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\lc.exe\""	lc.exe

Adds Run key to start application 2 TTPs 13 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1636999435-3883760687-346127294-1000\Software\Microsoft\Windows\CurrentVersion\Run\WIN32_3 = "windowsx-c.exe"	lc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1636999435-3883760687-346127294-1000\Software\Microsoft\Windows\CurrentVersion\Run\WIN32_5 = "_default64.exe"	lc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1636999435-3883760687-346127294-1000\Software\Microsoft\Windows\CurrentVersion\Run\WIN32_7 = "ux-cryptor.exe"	lc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1636999435-3883760687-346127294-1000\Software\Microsoft\Windows\CurrentVersion\Run\WindowsInstaller = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\lc.exe\" -startup"	lc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1636999435-3883760687-346127294-1000\Software\Microsoft\Windows\CurrentVersion\Run\MSEdgeUpdateX = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\lc.exe\""	lc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1636999435-3883760687-346127294-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\WINDOWS = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\lc.exe\" --wininit"	lc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1636999435-3883760687-346127294-1000\Software\Microsoft\Windows\CurrentVersion\Run\WIN32_1 = "AWindowsService.exe"	lc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1636999435-3883760687-346127294-1000\Software\Microsoft\Windows\CurrentVersion\Run\WIN32_4 = "System.exe"	lc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1636999435-3883760687-346127294-1000\Software\Microsoft\Windows\CurrentVersion\Run\WIN32_6 = "native.exe"	lc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1636999435-3883760687-346127294-1000\Software\Microsoft\Windows\CurrentVersion\Run\WIN32_8 = "crypt0rsx.exe"	lc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1636999435-3883760687-346127294-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\System3264Wow = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\lc.exe\" --init"	lc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1636999435-3883760687-346127294-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\OneDrive10293 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\lc.exe\" /setup"	lc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1636999435-3883760687-346127294-1000\Software\Microsoft\Windows\CurrentVersion\Run\WIN32_2 = "taskhost.exe"	lc.exe

Drops desktop.ini file(s) 4 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Documents\desktop.ini	attrib.exe
File opened for modification	C:\Users\Admin\Downloads\desktop.ini	attrib.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	attrib.exe
File opened for modification	C:\Users\Public\Desktop\desktop.ini	attrib.exe

Hide Artifacts: Hidden Files and Directories 1 TTPs 6 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
4388	cmd.exe
3956	cmd.exe
3980	cmd.exe
4424	cmd.exe
4048	cmd.exe
4540	cmd.exe

Kills process with taskkill 1 IoCs

defense_evasion

pid	Process
4148	taskkill.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
3172	lc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3172	lc.exe
Token: SeDebugPrivilege	4148	taskkill.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 3172 wrote to memory of 3980	3172	lc.exe	81
PID 3172 wrote to memory of 3956	3172	lc.exe	82
PID 3172 wrote to memory of 4388	3172	lc.exe	83
PID 3172 wrote to memory of 4540	3172	lc.exe	84
PID 3172 wrote to memory of 4048	3172	lc.exe	85
PID 3172 wrote to memory of 4424	3172	lc.exe	86
PID 3172 wrote to memory of 4148	3172	lc.exe	87
PID 3956 wrote to memory of 2492	3956	cmd.exe	108
PID 3980 wrote to memory of 1172	3980	cmd.exe	111
PID 4388 wrote to memory of 4160	4388	cmd.exe	112
PID 4048 wrote to memory of 2524	4048	cmd.exe	113
PID 4424 wrote to memory of 3812	4424	cmd.exe	115
PID 4540 wrote to memory of 3200	4540	cmd.exe	117
PID 3956 wrote to memory of 4568	3956	cmd.exe	116
PID 4048 wrote to memory of 4432	4048	cmd.exe	118
PID 4424 wrote to memory of 2100	4424	cmd.exe	119
PID 4388 wrote to memory of 1008	4388	cmd.exe	122
PID 3980 wrote to memory of 3028	3980	cmd.exe	121
PID 4540 wrote to memory of 4828	4540	cmd.exe	123

Views/modifies file attributes 1 TTPs 12 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
3200	attrib.exe
4828	attrib.exe
2492	attrib.exe
4568	attrib.exe
4432	attrib.exe
1008	attrib.exe
3028	attrib.exe
2100	attrib.exe
4160	attrib.exe
1172	attrib.exe
2524	attrib.exe
3812	attrib.exe

C:\Users\Admin\AppData\Local\Temp\lc.exe
"C:\Users\Admin\AppData\Local\Temp\lc.exe"
1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3172
- C:\Windows\SYSTEM32\cmd.exe
  cmd.exe /c F: & attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted by the CryptoBytes hacker group! Telegram for contact: @PILLORES 1>info-0v92.txt & attrib -h +s +r info-0v92.txt
  2⤵
  - Hide Artifacts: Hidden Files and Directories
  - Suspicious use of WriteProcessMemory
  PID:3980
- - C:\Windows\system32\attrib.exe
    attrib +h +s +r +i /D
    3⤵
    - Views/modifies file attributes
    PID:1172
- - C:\Windows\system32\attrib.exe
    attrib -h +s +r info-0v92.txt
    3⤵
    - Views/modifies file attributes
    PID:3028
- C:\Windows\SYSTEM32\cmd.exe
  cmd.exe /c cd "%userprofile%\desktop"&attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted by the CryptoBytes hacker group! Telegram for contact: @PILLORES 1>info-0v92.txt & attrib -h +s +r info-0v92.txt
  2⤵
  - Hide Artifacts: Hidden Files and Directories
  - Suspicious use of WriteProcessMemory
  PID:3956
- - C:\Windows\system32\attrib.exe
    attrib +h +s +r +i /D
    3⤵
    - Drops desktop.ini file(s)
    - Views/modifies file attributes
    PID:2492
- - C:\Windows\system32\attrib.exe
    attrib -h +s +r info-0v92.txt
    3⤵
    - Views/modifies file attributes
    PID:4568
- C:\Windows\SYSTEM32\cmd.exe
  cmd.exe /c cd "%systemdrive%\Users\Public\Desktop"&attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted by the CryptoBytes hacker group! Telegram for contact: @PILLORES 1>info-0v92.txt & attrib -h +s +r info-0v92.txt
  2⤵
  - Hide Artifacts: Hidden Files and Directories
  - Suspicious use of WriteProcessMemory
  PID:4388
- - C:\Windows\system32\attrib.exe
    attrib +h +s +r +i /D
    3⤵
    - Drops desktop.ini file(s)
    - Views/modifies file attributes
    PID:4160
- - C:\Windows\system32\attrib.exe
    attrib -h +s +r info-0v92.txt
    3⤵
    - Views/modifies file attributes
    PID:1008
- C:\Windows\SYSTEM32\cmd.exe
  cmd.exe /c cd "%userprofile%\downloads"&attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted by the CryptoBytes hacker group! Telegram for contact: @PILLORES 1>info-0v92.txt & attrib -h +s +r info-0v92.txt
  2⤵
  - Hide Artifacts: Hidden Files and Directories
  - Suspicious use of WriteProcessMemory
  PID:4540
- - C:\Windows\system32\attrib.exe
    attrib +h +s +r +i /D
    3⤵
    - Drops desktop.ini file(s)
    - Views/modifies file attributes
    PID:3200
- - C:\Windows\system32\attrib.exe
    attrib -h +s +r info-0v92.txt
    3⤵
    - Views/modifies file attributes
    PID:4828
- C:\Windows\SYSTEM32\cmd.exe
  cmd.exe /c cd "%userprofile%\documents"&attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted by the CryptoBytes hacker group! Telegram for contact: @PILLORES 1>info-0v92.txt & attrib -h +s +r info-0v92.txt
  2⤵
  - Hide Artifacts: Hidden Files and Directories
  - Suspicious use of WriteProcessMemory
  PID:4048
- - C:\Windows\system32\attrib.exe
    attrib +h +s +r +i /D
    3⤵
    - Drops desktop.ini file(s)
    - Views/modifies file attributes
    PID:2524
- - C:\Windows\system32\attrib.exe
    attrib -h +s +r info-0v92.txt
    3⤵
    - Views/modifies file attributes
    PID:4432
- C:\Windows\SYSTEM32\cmd.exe
  cmd.exe /c cd "%userprofile%"&attrib +h +s +r +i /D & echo [%RANDOM%] Ooops! Your files are encrypted by the CryptoBytes hacker group! Telegram for contact: @PILLORES 1>info-0v92.txt & attrib -h +s +r info-0v92.txt
  2⤵
  - Hide Artifacts: Hidden Files and Directories
  - Suspicious use of WriteProcessMemory
  PID:4424
- - C:\Windows\system32\attrib.exe
    attrib +h +s +r +i /D
    3⤵
    - Views/modifies file attributes
    PID:3812
- - C:\Windows\system32\attrib.exe
    attrib -h +s +r info-0v92.txt
    3⤵
    - Views/modifies file attributes
    PID:2100
- C:\Windows\SYSTEM32\taskkill.exe
  taskkill.exe /im Explorer.exe /f
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:4148

C:\Users\Admin\AppData\Local\Temp\lc.exe
"C:\Users\Admin\AppData\Local\Temp\lc.exe" --init
1⤵
PID:2520

C:\Users\Admin\AppData\Local\Temp\lc.exe
"C:\Users\Admin\AppData\Local\Temp\lc.exe"
1⤵
PID:2208

C:\Users\Admin\AppData\Local\Temp\lc.exe
"C:\Users\Admin\AppData\Local\Temp\lc.exe" /setup
1⤵
PID:2892

C:\Users\Admin\AppData\Local\Temp\lc.exe
"C:\Users\Admin\AppData\Local\Temp\lc.exe" -startup
1⤵
PID:3232

C:\Users\Admin\AppData\Local\Temp\lc.exe
"C:\Users\Admin\AppData\Local\Temp\lc.exe" --wininit
1⤵
PID:4488

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

lc.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\lc.exe.log
Size 1KB
SHA256 58b9918225aee046894cb3c6263687bfe4b5a5b8dff7196d72687d0f3f735034
MD5 8e0f23092b7a620dc2f45b4a9a596029
SHA1 58cc7c47602c73529e91ff9db3c74ff05459e4ea
SHA512 be458f811ad6a1f6b320e8d3e68e71062a8de686bae77c400d65091947b805c95024f3f1837e088cf5ecac5388d36f354285a6b57f91ea55567f19706128a043
TLSH
T1BA318D312772B1D889163F471C1D56C417FF8729B654AD0CB658624ED92705B5F222F3
MD5 SHA1 SHA512 TLSH

Submit Download

info-0v92.txt

Path C:\Users\Admin\Desktop\info-0v92.txt
Size 108B
SHA256 f84fb83e9c933baaa005b4e531d3372b7a33ac02c4d653c9b2bd3c88a330f05f
MD5 d41ccd89d8ce99f07db3933a4957f5e7
SHA1 5a900b79ef08497ae9c88e2b53d1c062e8831bf3
SHA512 421fdc18eb5c0ee3720a12164fd65eb2afa6306eef54ba1d6878ba5c6fa58a8920175512122359c29e5448c63cec4a56fe9ebc8e36489aab050d0095d324746f
TLSH
T128B09B145DB8528415A511F17531B1607499A60D506615511145006914644A82DDA565
MD5 SHA1 SHA512 TLSH

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info-0v92.txt

Path C:\Users\Admin\Documents\info-0v92.txt
Size 108B
SHA256 700d8f01997aba2b126a9b73e87cb7b22ffa7bb5aba344cf938444f717414a39
MD5 c1f8d81202be8db21270192cda55a0e0
SHA1 124b657a28f78fa08082a154defb38175128697f
SHA512 0cf9f3d2b67e42912b600d2ff5d4a617a6b89677463ee20de92a837abf4b933ce06149888e3e6b349ec2c5d9157912d4fafa60ccdf836d8a3273858acf46dad4
TLSH
T1F2B014145D7C53C4117111F17731F15474DDD70D517715551104007D14744FC1DDF575
MD5 SHA1 SHA512 TLSH

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memory/3172-0-0x0000000000750000-0x00000000007A8000-memory.dmp

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memory/3172-1-0x000000001CB00000-0x000000001CB10000-memory.dmp

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memory/3172-3-0x000000001CB00000-0x000000001CB10000-memory.dmp

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memory/3172-20-0x000000001CB00000-0x000000001CB10000-memory.dmp

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memory/3172-21-0x000000001CB00000-0x000000001CB10000-memory.dmp

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memory/3172-22-0x000000001CB00000-0x000000001CB10000-memory.dmp

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memory/3172-23-0x000000001CB00000-0x000000001CB10000-memory.dmp

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