6daa40a506e0dd2a62b22af40e1d1d60a64d2b8065e2b0e8a204ce2abdeca7c3

Analysis

max time kernel
150s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
06-11-2022 03:37

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General

Target

6daa40a506e0dd2a62b22af40e1d1d60a64d2b8065e2b0e8a204ce2abdeca7c3.exe
Size

267KB
MD5

3191a5550fe3cbe5fbb94d014b7ca48e
SHA1

6bac06e26974da605380fd832651c50b362689e4
SHA256

6daa40a506e0dd2a62b22af40e1d1d60a64d2b8065e2b0e8a204ce2abdeca7c3
SHA512

e6b82aa1dd61770773bf86ef14c932c49ecdebb61ec04be5ebb6bc84e56a32d843d368abb04455c8e6fe02851b663c9dd87f1b7d7cff4a770792db70bc646fac
SSDEEP

6144:XbfO3SlNyTkyhlx0kRujRYO4VYAtHJ3DFLjxIE++/gAxcbibMoSL:LfIST8kk0kMlCPTvXxKXoSL

Score

10^/10

evasion persistence upx

Malware Config

Signatures

Modifies firewall policy service 2 TTPs 10 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0"	reg.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	reg.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	reg.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0"	reg.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	reg.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	reg.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Users\Admin\AppData\Roaming\winlogon.exe = "C:\\Users\\Admin\\AppData\\Roaming\\winlogon.exe:*:Enabled:Windows Messanger"	reg.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	reg.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	reg.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Users\Admin\AppData\Roaming\darkeye-nosttingspersistent2.exe = "C:\\Users\\Admin\\AppData\\Roaming\\darkeye-nosttingspersistent2.exe:*:Enabled:Windows Messanger"	reg.exe

Executes dropped EXE 3 IoCs

pid	Process
968	winlogon.exe
4772	winlogon.exe
4800	winlogon.exe

UPX packed file 17 IoCs

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

upx

resource	yara_rule
	upx
behavioral2/memory/1116-132-0x0000000000400000-0x000000000057E000-memory.dmp	upx
behavioral2/files/0x000300000001e64b-139.dat	upx
behavioral2/files/0x000300000001e64b-140.dat	upx
behavioral2/memory/1116-142-0x0000000000400000-0x000000000057E000-memory.dmp	upx
behavioral2/memory/4772-145-0x0000000000400000-0x000000000045D000-memory.dmp	upx
behavioral2/files/0x000300000001e64b-146.dat	upx
behavioral2/memory/4800-150-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral2/memory/4772-148-0x0000000000400000-0x000000000045D000-memory.dmp	upx
behavioral2/memory/4772-151-0x0000000000400000-0x000000000045D000-memory.dmp	upx
behavioral2/memory/4800-155-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral2/files/0x000300000001e64b-152.dat	upx
behavioral2/memory/4800-157-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral2/memory/968-158-0x0000000000400000-0x000000000057E000-memory.dmp	upx
behavioral2/memory/4800-166-0x0000000000400000-0x0000000000409000-memory.dmp	upx
behavioral2/memory/4772-164-0x0000000000400000-0x000000000045D000-memory.dmp	upx
behavioral2/memory/4772-172-0x0000000000400000-0x000000000045D000-memory.dmp	upx

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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	6daa40a506e0dd2a62b22af40e1d1d60a64d2b8065e2b0e8a204ce2abdeca7c3.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Winlogon = "C:\\Users\\Admin\\AppData\\Roaming\\winlogon.exe"	reg.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 968 set thread context of 4772	968	winlogon.exe	85
PID 968 set thread context of 4800	968	winlogon.exe	86

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

System Information Discovery
T1082

Modifies registry key 1 TTPs 4 IoCs

Modify Registry

T1112

pid	Process
616	reg.exe
2088	reg.exe
4296	reg.exe
3348	reg.exe

Suspicious use of AdjustPrivilegeToken 36 IoCs

description	pid	Process
Token: SeDebugPrivilege	4800	winlogon.exe
Token: 1	4772	winlogon.exe
Token: SeCreateTokenPrivilege	4772	winlogon.exe
Token: SeAssignPrimaryTokenPrivilege	4772	winlogon.exe
Token: SeLockMemoryPrivilege	4772	winlogon.exe
Token: SeIncreaseQuotaPrivilege	4772	winlogon.exe
Token: SeMachineAccountPrivilege	4772	winlogon.exe
Token: SeTcbPrivilege	4772	winlogon.exe
Token: SeSecurityPrivilege	4772	winlogon.exe
Token: SeTakeOwnershipPrivilege	4772	winlogon.exe
Token: SeLoadDriverPrivilege	4772	winlogon.exe
Token: SeSystemProfilePrivilege	4772	winlogon.exe
Token: SeSystemtimePrivilege	4772	winlogon.exe
Token: SeProfSingleProcessPrivilege	4772	winlogon.exe
Token: SeIncBasePriorityPrivilege	4772	winlogon.exe
Token: SeCreatePagefilePrivilege	4772	winlogon.exe
Token: SeCreatePermanentPrivilege	4772	winlogon.exe
Token: SeBackupPrivilege	4772	winlogon.exe
Token: SeRestorePrivilege	4772	winlogon.exe
Token: SeShutdownPrivilege	4772	winlogon.exe
Token: SeDebugPrivilege	4772	winlogon.exe
Token: SeAuditPrivilege	4772	winlogon.exe
Token: SeSystemEnvironmentPrivilege	4772	winlogon.exe
Token: SeChangeNotifyPrivilege	4772	winlogon.exe
Token: SeRemoteShutdownPrivilege	4772	winlogon.exe
Token: SeUndockPrivilege	4772	winlogon.exe
Token: SeSyncAgentPrivilege	4772	winlogon.exe
Token: SeEnableDelegationPrivilege	4772	winlogon.exe
Token: SeManageVolumePrivilege	4772	winlogon.exe
Token: SeImpersonatePrivilege	4772	winlogon.exe
Token: SeCreateGlobalPrivilege	4772	winlogon.exe
Token: 31	4772	winlogon.exe
Token: 32	4772	winlogon.exe
Token: 33	4772	winlogon.exe
Token: 34	4772	winlogon.exe
Token: 35	4772	winlogon.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1116	6daa40a506e0dd2a62b22af40e1d1d60a64d2b8065e2b0e8a204ce2abdeca7c3.exe
968	winlogon.exe
4772	winlogon.exe
4800	winlogon.exe
4772	winlogon.exe
4772	winlogon.exe

Suspicious use of WriteProcessMemory 49 IoCs

description	pid	Process	procid_target
PID 1116 wrote to memory of 4200	1116	6daa40a506e0dd2a62b22af40e1d1d60a64d2b8065e2b0e8a204ce2abdeca7c3.exe	80
PID 1116 wrote to memory of 4200	1116	6daa40a506e0dd2a62b22af40e1d1d60a64d2b8065e2b0e8a204ce2abdeca7c3.exe	80
PID 1116 wrote to memory of 4200	1116	6daa40a506e0dd2a62b22af40e1d1d60a64d2b8065e2b0e8a204ce2abdeca7c3.exe	80
PID 4200 wrote to memory of 4808	4200	cmd.exe	83
PID 4200 wrote to memory of 4808	4200	cmd.exe	83
PID 4200 wrote to memory of 4808	4200	cmd.exe	83
PID 1116 wrote to memory of 968	1116	6daa40a506e0dd2a62b22af40e1d1d60a64d2b8065e2b0e8a204ce2abdeca7c3.exe	84
PID 1116 wrote to memory of 968	1116	6daa40a506e0dd2a62b22af40e1d1d60a64d2b8065e2b0e8a204ce2abdeca7c3.exe	84
PID 1116 wrote to memory of 968	1116	6daa40a506e0dd2a62b22af40e1d1d60a64d2b8065e2b0e8a204ce2abdeca7c3.exe	84
PID 968 wrote to memory of 4772	968	winlogon.exe	85
PID 968 wrote to memory of 4772	968	winlogon.exe	85
PID 968 wrote to memory of 4772	968	winlogon.exe	85
PID 968 wrote to memory of 4772	968	winlogon.exe	85
PID 968 wrote to memory of 4772	968	winlogon.exe	85
PID 968 wrote to memory of 4772	968	winlogon.exe	85
PID 968 wrote to memory of 4772	968	winlogon.exe	85
PID 968 wrote to memory of 4772	968	winlogon.exe	85
PID 968 wrote to memory of 4800	968	winlogon.exe	86
PID 968 wrote to memory of 4800	968	winlogon.exe	86
PID 968 wrote to memory of 4800	968	winlogon.exe	86
PID 968 wrote to memory of 4800	968	winlogon.exe	86
PID 968 wrote to memory of 4800	968	winlogon.exe	86
PID 968 wrote to memory of 4800	968	winlogon.exe	86
PID 968 wrote to memory of 4800	968	winlogon.exe	86
PID 968 wrote to memory of 4800	968	winlogon.exe	86
PID 4772 wrote to memory of 4188	4772	winlogon.exe	87
PID 4772 wrote to memory of 4188	4772	winlogon.exe	87
PID 4772 wrote to memory of 4188	4772	winlogon.exe	87
PID 4772 wrote to memory of 4380	4772	winlogon.exe	93
PID 4772 wrote to memory of 4380	4772	winlogon.exe	93
PID 4772 wrote to memory of 4380	4772	winlogon.exe	93
PID 4772 wrote to memory of 4888	4772	winlogon.exe	92
PID 4772 wrote to memory of 4888	4772	winlogon.exe	92
PID 4772 wrote to memory of 4888	4772	winlogon.exe	92
PID 4772 wrote to memory of 2080	4772	winlogon.exe	90
PID 4772 wrote to memory of 2080	4772	winlogon.exe	90
PID 4772 wrote to memory of 2080	4772	winlogon.exe	90
PID 4188 wrote to memory of 2088	4188	cmd.exe	96
PID 4188 wrote to memory of 2088	4188	cmd.exe	96
PID 4188 wrote to memory of 2088	4188	cmd.exe	96
PID 2080 wrote to memory of 616	2080	cmd.exe	95
PID 2080 wrote to memory of 616	2080	cmd.exe	95
PID 2080 wrote to memory of 616	2080	cmd.exe	95
PID 4888 wrote to memory of 4296	4888	cmd.exe	97
PID 4888 wrote to memory of 4296	4888	cmd.exe	97
PID 4888 wrote to memory of 4296	4888	cmd.exe	97
PID 4380 wrote to memory of 3348	4380	cmd.exe	98
PID 4380 wrote to memory of 3348	4380	cmd.exe	98
PID 4380 wrote to memory of 3348	4380	cmd.exe	98

C:\Users\Admin\AppData\Local\Temp\6daa40a506e0dd2a62b22af40e1d1d60a64d2b8065e2b0e8a204ce2abdeca7c3.exe
"C:\Users\Admin\AppData\Local\Temp\6daa40a506e0dd2a62b22af40e1d1d60a64d2b8065e2b0e8a204ce2abdeca7c3.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1116
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\VuxZp.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4200
- - C:\Windows\SysWOW64\reg.exe
    REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Winlogon" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\winlogon.exe" /f
    3⤵
    - Adds Run key to start application
    PID:4808
- C:\Users\Admin\AppData\Roaming\winlogon.exe
  "C:\Users\Admin\AppData\Roaming\winlogon.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:968
- - C:\Users\Admin\AppData\Roaming\winlogon.exe
    winlogon.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4772
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4188
    - - C:\Windows\SysWOW64\reg.exe
        
        REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
        5⤵
        Modifies firewall policy service
        Modifies registry key
        
        PID:2088
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\darkeye-nosttingspersistent2.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\darkeye-nosttingspersistent2.exe:*:Enabled:Windows Messanger" /f
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2080
    - - C:\Windows\SysWOW64\reg.exe
        
        REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\darkeye-nosttingspersistent2.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\darkeye-nosttingspersistent2.exe:*:Enabled:Windows Messanger" /f
        5⤵
        Modifies firewall policy service
        Modifies registry key
        
        PID:616
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4888
    - - C:\Windows\SysWOW64\reg.exe
        
        REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
        5⤵
        Modifies firewall policy service
        Modifies registry key
        
        PID:4296
  - - C:\Windows\SysWOW64\cmd.exe
      cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\winlogon.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\winlogon.exe:*:Enabled:Windows Messanger" /f
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4380
    - - C:\Windows\SysWOW64\reg.exe
        
        REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\winlogon.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\winlogon.exe:*:Enabled:Windows Messanger" /f
        5⤵
        Modifies firewall policy service
        Modifies registry key
        
        PID:3348
- - C:\Users\Admin\AppData\Roaming\winlogon.exe
    C:\Users\Admin\AppData\Roaming\winlogon.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:4800

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\VuxZp.bat

Filesize
138B

MD5
4da6717f2c70f4bd32ad33a227a2ff47

SHA1
3d7f7159e1f695bd469287d1ad4ffa0841b407a8

SHA256
a12bb2e5d2fb0b3c400ce311fae72995a00b57a97d23e4b9effec47cff189d07

SHA512
6765314054ad9bf2164058248f3d3a17775176925abbe4376aec030dca3a5e59be8b9e96139941fec2b2e1a9bff38f87abdb29ea09a299d8ab7e23ecec4083df

Download Submit
C:\Users\Admin\AppData\Roaming\winlogon.exe

Filesize
267KB

MD5
744f8d76b4270b79afb27ecf92083abe

SHA1
6d2ef735d811772e79144c6af539dd3dbfc19834

SHA256
e210848046dc94400d21ad50fec5876599246cfb73f67f71449cd59a0bbb495e

SHA512
da89e9eb220a6a0758f4902274dbacc7280ace3481948a90b66a7b2811005449a53d1d4e300d977b701c7df1d8236c8edb31b2a2a8eb9a469f13f61d47da5d2d

Download Submit
C:\Users\Admin\AppData\Roaming\winlogon.exe

Filesize
267KB

MD5
744f8d76b4270b79afb27ecf92083abe

SHA1
6d2ef735d811772e79144c6af539dd3dbfc19834

SHA256
e210848046dc94400d21ad50fec5876599246cfb73f67f71449cd59a0bbb495e

SHA512
da89e9eb220a6a0758f4902274dbacc7280ace3481948a90b66a7b2811005449a53d1d4e300d977b701c7df1d8236c8edb31b2a2a8eb9a469f13f61d47da5d2d

Download Submit
C:\Users\Admin\AppData\Roaming\winlogon.exe

Filesize
267KB

MD5
744f8d76b4270b79afb27ecf92083abe

SHA1
6d2ef735d811772e79144c6af539dd3dbfc19834

SHA256
e210848046dc94400d21ad50fec5876599246cfb73f67f71449cd59a0bbb495e

SHA512
da89e9eb220a6a0758f4902274dbacc7280ace3481948a90b66a7b2811005449a53d1d4e300d977b701c7df1d8236c8edb31b2a2a8eb9a469f13f61d47da5d2d

Download Submit
C:\Users\Admin\AppData\Roaming\winlogon.exe

Filesize
267KB

MD5
744f8d76b4270b79afb27ecf92083abe

SHA1
6d2ef735d811772e79144c6af539dd3dbfc19834

SHA256
e210848046dc94400d21ad50fec5876599246cfb73f67f71449cd59a0bbb495e

SHA512
da89e9eb220a6a0758f4902274dbacc7280ace3481948a90b66a7b2811005449a53d1d4e300d977b701c7df1d8236c8edb31b2a2a8eb9a469f13f61d47da5d2d

Download Submit
memory/968-158-0x0000000000400000-0x000000000057E000-memory.dmp

Filesize
1.5MB

Download
memory/1116-132-0x0000000000400000-0x000000000057E000-memory.dmp

Filesize
1.5MB

Download
memory/1116-142-0x0000000000400000-0x000000000057E000-memory.dmp

Filesize
1.5MB

Download
memory/4772-151-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4772-148-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4772-164-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4772-145-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4772-172-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4800-157-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4800-155-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4800-166-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4800-150-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads