4779855cc4b61d1a576f0a74f85098d6387c0bf0f1a48eebea229f975bee10a6

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
20/06/2026, 04:21

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General

Target
_4779855cc4b61d1a576f0a74f85098d6387c0bf0f1a48eebea229f975bee10a6.exe
Size 1.8MB
Sample260620-ey7b5set7x
SHA256 4779855cc4b61d1a576f0a74f85098d6387c0bf0f1a48eebea229f975bee10a6
MD5 ab057933c39d56daa8811177ff36e625
SHA1 e387e53e7440520cac9a1b9ae434969e41813495
SHA512 360120a957655bde9ef0a4f4f7ecdee55a2e2d1057dd178431de7e91538e107df5b84d939834cb18041025367700823986af912a51aaf24dbe24626b5056be30
SSDEEP 24576:waE+hTNrCHtLfTfuM7Djr5QpYrao2rupZdH1tQ5G28pgBUIsMmOSguOQY12t1J3+:0+MRvHCGUUPOSh1nrZEjjy3Y
TLSH
T14395CF13F2CBE03EE05E1B3745B2A15894FBAA616427AD5786ECB4ACCF350501E3E647
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

discovery execution installer persistence

Malware Config

Signatures

Executes dropped EXE 4 IoCs

pid	Process
688	_4779855cc4b61d1a576f0a74f85098d6387c0bf0f1a48eebea229f975bee10a6.tmp
1664	LockAppHost.exe
5032	LockAppHost.exe
1220	LockAppHost.exe

Loads dropped DLL 3 IoCs

pid	Process
1664	LockAppHost.exe
1220	LockAppHost.exe
5032	LockAppHost.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-668679576-120646659-2289335452-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WindowsLockHost = "C:\\Users\\Admin\\AppData\\Local\\ezk3vgcqan\\LockAppHost.exe"	LockAppHost.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

System Location Discovery: System Language Discovery 1 TTPs 8 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	LockAppHost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	_4779855cc4b61d1a576f0a74f85098d6387c0bf0f1a48eebea229f975bee10a6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	_4779855cc4b61d1a576f0a74f85098d6387c0bf0f1a48eebea229f975bee10a6.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	LockAppHost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	LockAppHost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Inno Setup is an open-source installation builder for Windows applications. 2 IoCs

Inno Setup installer

installer

resource	yara_rule
behavioral1/memory/4540-0-0x00000000003B0000-0x000000000048D000-memory.dmp	innosetup
behavioral1/memory/4540-30-0x00000000003B0000-0x000000000048D000-memory.dmp	innosetup

Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
1904	schtasks.exe
4468	schtasks.exe
2256	schtasks.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
688	_4779855cc4b61d1a576f0a74f85098d6387c0bf0f1a48eebea229f975bee10a6.tmp

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4540 wrote to memory of 688	4540	_4779855cc4b61d1a576f0a74f85098d6387c0bf0f1a48eebea229f975bee10a6.exe	89
PID 688 wrote to memory of 1664	688	_4779855cc4b61d1a576f0a74f85098d6387c0bf0f1a48eebea229f975bee10a6.tmp	91
PID 1664 wrote to memory of 4468	1664	LockAppHost.exe	92
PID 1220 wrote to memory of 2256	1220	LockAppHost.exe	98
PID 5032 wrote to memory of 1904	5032	LockAppHost.exe	100

C:\Users\Admin\AppData\Local\Temp\_4779855cc4b61d1a576f0a74f85098d6387c0bf0f1a48eebea229f975bee10a6.exe
"C:\Users\Admin\AppData\Local\Temp\_4779855cc4b61d1a576f0a74f85098d6387c0bf0f1a48eebea229f975bee10a6.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4540
- C:\Users\Admin\AppData\Local\Temp\is-HSJLE.tmp\_4779855cc4b61d1a576f0a74f85098d6387c0bf0f1a48eebea229f975bee10a6.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-HSJLE.tmp\_4779855cc4b61d1a576f0a74f85098d6387c0bf0f1a48eebea229f975bee10a6.tmp" /SL5="$701EE,964116,844800,C:\Users\Admin\AppData\Local\Temp\_4779855cc4b61d1a576f0a74f85098d6387c0bf0f1a48eebea229f975bee10a6.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:688
- - C:\Users\Admin\AppData\Local\ezk3vgcqan\LockAppHost.exe
    "C:\Users\Admin\AppData\Local\ezk3vgcqan\LockAppHost.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1664
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /f /tn "WindowsLockHost" /tr "\"C:\Users\Admin\AppData\Local\ezk3vgcqan\LockAppHost.exe\"" /sc onlogon /rl highest
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:4468

C:\Users\Admin\AppData\Local\ezk3vgcqan\LockAppHost.exe
C:\Users\Admin\AppData\Local\ezk3vgcqan\LockAppHost.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5032
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /f /tn "WindowsLockHost" /tr "\"C:\Users\Admin\AppData\Local\ezk3vgcqan\LockAppHost.exe\"" /sc onlogon /rl highest
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1904

C:\Users\Admin\AppData\Local\ezk3vgcqan\LockAppHost.exe
"C:\Users\Admin\AppData\Local\ezk3vgcqan\LockAppHost.exe"
1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1220
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /f /tn "WindowsLockHost" /tr "\"C:\Users\Admin\AppData\Local\ezk3vgcqan\LockAppHost.exe\"" /sc onlogon /rl highest
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2256

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

_4779855cc4b61d1a576f0a74f85098d6387c0bf0f1a48eebea229f975bee10a6.tmp

Path C:\Users\Admin\AppData\Local\Temp\is-HSJLE.tmp\_4779855cc4b61d1a576f0a74f85098d6387c0bf0f1a48eebea229f975bee10a6.tmp
Size 3.4MB
SHA256 0b0cb7e0df1d0acd252c7707ca0ea7d0c0b694ac8023b66fe162b849aacb491e
MD5 49391dd60808c3b2c4e03f868a7d9b1d
SHA1 314550f448ce32c78dbde32512655e13630abee7
SHA512 e430176624bfd22b382b228e26a1b789da1eb25f8aeef3e0d2a8b5ab852e9058936d29e50697a6d2768506e711a18a234d8941f4972e5987b68cf76e45324d8b
SSDEEP 49152:xuAKxvISKItheRQSJ3MhjxImhEzAW308A3oWtKFz0ool5+UKL5333TP:xuAK64MmhKAWHooWJE333T
TLSH
T1CDF56D23F34D603EF06A1A399D379658983F7A606516CC5797FC3A8C8F361402E2A75B
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

LockAppHost.exe

Path C:\Users\Admin\AppData\Local\ezk3vgcqan\LockAppHost.exe
Size 74KB
SHA256 65e0de657a7bd32aaf53239edecc608b1bf08ea0a6cfed58894993c437b83b15
MD5 425a5c140eb53e863b77513cf1b981fe
SHA1 944ecb6819c0060cb31a225c5663d954a48ddb69
SHA512 9e36e7b9ef3af51622ad3902824689330e877199ba7783f2a2b1fe9c48e56528b136568c8212c2838cb43de3614e70ec0a77f436cc86c881cb02a1d5ac06823a
SSDEEP 1536:o+4RQ8COb5ZhrGPSd1EOzag9M2KAGXU9FGtqx53zxx0132sP+dkzQn3:o+F8CuFtUazngU9F6qx53zn01GsLW3
TLSH
T15A736C63BB406471C6A238700A5AFA355BBEA3B04F2046D3175496F91DB23C35E3766F
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

LockHostingFramework.dll

Path C:\Users\Admin\AppData\Local\ezk3vgcqan\LockHostingFramework.dll
Size 235KB
SHA256 b1881833f101345ba8c5c9c914ad2a7037e33da1d2ab3eb58557c7457de5985e
MD5 a109107d2fc1cfc74d8507c0a4a9485a
SHA1 ba79ca713183648394f488bee0262ff51c7a5192
SHA512 e48ff499582cb3d699123e57602babea022ab43c6c3fa29fb2d11b36da8a6445c3159bee2796c77a1b3022663198ebf457f217658ef1e7f62a4d300a1f7a55ec
SSDEEP 6144:zYp+oYW9B6ycrQuoeoD94zTW/nhi3UthPW:IXB69MuoeoD94zef
TLSH
T13C341A9DFB4304F5F21356FA8A1ED7F7822879158132ABB7EF4BC605B4B37066900299
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

msiexec.dll

Path C:\Users\Admin\AppData\Local\ezk3vgcqan\msiexec.dll
Size 2KB
SHA256 01a90b4af0fd84469a832b954d1665151fc36f4058c6baa27a6bc811572d5f07
MD5 5a83d458c4323c325880f29747ed4627
SHA1 52f83bb03ddaf909dc82477882ed19d33394c912
SHA512 5c35ddf7af873ba7705d0a8f04ab7b7991972854ff562d23f9f384dd8ad1b8f362cef2b9d2ed9c745afafe532dd08344414c55a95e09dacb5ebb5825ee4b092e
TLSH
T1C651A5548242BF4071D0F619A000BE95D718A697C96122C5FE7726D2EC6BD340FF7643
MD5 SHA1 SHA512 TLSH

Submit Download

wbem.dll

Path C:\Users\Admin\AppData\Local\ezk3vgcqan\wbem.dll
Size 4KB
SHA256 ed72873639c4d756b3da17e9e6d2f7c9e9c27daca6d0e474ccdc3242b5958430
MD5 31cdd9b41558f319154033d11adcf26a
SHA1 ed0addd48b91a8aa928bb861d06c75f9cd0836b4
SHA512 10ec3872cc599cfcffcbb3e2d812123bb17f3377a7cf63afc715a93d213992835ac7453b766be9a5ae9979aadad1af85237a615c9ec5c36207bb6e9f640364be
SSDEEP 96:YLgWgx6VzAENmAsbgiMVavEL6+VOxr2sjpZo+iO9vqj:Y0WgOszAsbgi5p8+iOA
TLSH
T10F91422561417A7936DFCB56A911662AC9286E107A41300A9FF281EF3F5FBF24B340D2
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/688-5-0x0000000003360000-0x0000000003361000-memory.dmp

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memory/688-7-0x0000000003540000-0x0000000003680000-memory.dmp

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memory/688-8-0x0000000003540000-0x0000000003680000-memory.dmp

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memory/688-29-0x0000000000290000-0x00000000005FB000-memory.dmp

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memory/1220-37-0x00000000740E0000-0x0000000074122000-memory.dmp

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memory/1664-27-0x00000000009F0000-0x00000000009F1000-memory.dmp

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memory/1664-35-0x00000000740E0000-0x0000000074122000-memory.dmp

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memory/1664-28-0x0000000000D30000-0x0000000000D32000-memory.dmp

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memory/4540-0-0x00000000003B0000-0x000000000048D000-memory.dmp

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memory/4540-30-0x00000000003B0000-0x000000000048D000-memory.dmp

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memory/5032-36-0x00000000740E0000-0x0000000074122000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads