3e34b23829845ea98d5ca16c8710ab8ace5a7d4b6f683bffa74743dc8d85d723

General

Target

3e34b23829845ea98d5ca16c8710ab8ace5a7d4b6f683bffa74743dc8d85d723.exe
Size

95KB
MD5

b43c648d70f4a5570f2ef321f0abb058
SHA1

7a4630267fc5de6b6c21b7a0897219196ae2caec
SHA256

3e34b23829845ea98d5ca16c8710ab8ace5a7d4b6f683bffa74743dc8d85d723
SHA512

b789968356415f9c6d4fddef8ce10477d7c9b010f03c1a5ef03d2402be47412d82c8a969989185dc53becb68c339f16261577e7642b03f092a4cb63377a62f8e
SSDEEP

1536:SG7oX4ubYkhJ5DXJ9IQsKO8cEk4hAn7FfY29F9MThAtcifUf:SGy4YYujXJ9IQ3c9vA29F9MThAt5q

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

appsvc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\Windows\\SysWOW64\\Application Services\\appsvc.exe\""	appsvc.exe

Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Processes:

appsvc.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	appsvc.exe

Executes dropped EXE 1 IoCs

Processes:

appsvc.exe

pid process

5012 appsvc.exe

Sets file execution options in registry 2 TTPs 64 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

appsvc.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mbam.exe	appsvc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mbamgui.exe	appsvc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avgnt.exe	appsvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avgui.exe\Debugger = "nqij.exe"	appsvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\blindman.exe\Debugger = "nqij.exe"	appsvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\appsvc.exe\DisableExceptionChainValidation	appsvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ComboFix.exe\Debugger = "nqij.exe"	appsvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avp.exe\Debugger = "nqij.exe"	appsvc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\SDFiles.exe	appsvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\AvastSvc.exe\Debugger = "nqij.exe"	appsvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\AvastUI.exe\Debugger = "nqij.exe"	appsvc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avscan.exe	appsvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\hijackthis.exe\Debugger = "nqij.exe"	appsvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avgnt.exe\Debugger = "nqij.exe"	appsvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avgcsrvx.exe\Debugger = "nqij.exe"	appsvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\instup.exe\Debugger = "nqij.exe"	appsvc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mbamscheduler.exe	appsvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\wireshark.exe\Debugger = "nqij.exe"	appsvc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avguard.exe	appsvc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\appsvc.exe	appsvc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\hijackthis.exe	appsvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ccuac.exe\Debugger = "nqij.exe"	appsvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avcenter.exe\Debugger = "nqij.exe"	appsvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avguard.exe\Debugger = "nqij.exe"	appsvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\egui.exe\Debugger = "nqij.exe"	appsvc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MsMpEng.exe	appsvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\SDFiles.exe\Debugger = "nqij.exe"	appsvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mbampt.exe\Debugger = "nqij.exe"	appsvc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\bdagent.exe	appsvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MSASCui.exe\Debugger = "nqij.exe"	appsvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msseces.exe\Debugger = "nqij.exe"	appsvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\SDMain.exe\Debugger = "nqij.exe"	appsvc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\SDWinSec.exe	appsvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avgwdsvc.exe\Debugger = "nqij.exe"	appsvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\zlclient.exe\Debugger = "nqij.exe"	appsvc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avp.exe	appsvc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ComboFix.exe	appsvc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msseces.exe	appsvc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\SDMain.exe	appsvc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\spybotsd.exe	appsvc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ccuac.exe	appsvc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avgwdsvc.exe	appsvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MpCmdRun.exe\Debugger = "nqij.exe"	appsvc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mbampt.exe	appsvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mbamservice.exe\Debugger = "nqij.exe"	appsvc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avgidsagent.exe	appsvc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MpCmdRun.exe	appsvc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\wireshark.exe	appsvc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MSASCui.exe	appsvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avconfig.exe\Debugger = "nqij.exe"	appsvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mbamgui.exe\Debugger = "nqij.exe"	appsvc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avgui.exe	appsvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avgidsagent.exe\Debugger = "nqij.exe"	appsvc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\egui.exe	appsvc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\zlclient.exe	appsvc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mbamservice.exe	appsvc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avgrsx.exe	appsvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\keyscrambler.exe\Debugger = "nqij.exe"	appsvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MsMpEng.exe\Debugger = "nqij.exe"	appsvc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avconfig.exe	appsvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avscan.exe\Debugger = "nqij.exe"	appsvc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mbam.exe\Debugger = "nqij.exe"	appsvc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avcenter.exe	appsvc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\keyscrambler.exe	appsvc.exe

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

Processes:

3e34b23829845ea98d5ca16c8710ab8ace5a7d4b6f683bffa74743dc8d85d723.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	3e34b23829845ea98d5ca16c8710ab8ace5a7d4b6f683bffa74743dc8d85d723.exe

Drops file in System32 directory 3 IoCs

Processes:

3e34b23829845ea98d5ca16c8710ab8ace5a7d4b6f683bffa74743dc8d85d723.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\Application Services\	3e34b23829845ea98d5ca16c8710ab8ace5a7d4b6f683bffa74743dc8d85d723.exe
File created	C:\Windows\SysWOW64\Application Services\appsvc.exe	3e34b23829845ea98d5ca16c8710ab8ace5a7d4b6f683bffa74743dc8d85d723.exe
File opened for modification	C:\Windows\SysWOW64\Application Services\appsvc.exe	3e34b23829845ea98d5ca16c8710ab8ace5a7d4b6f683bffa74743dc8d85d723.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

appsvc.exe

pid	process
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe
5012	appsvc.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

appsvc.exe

pid process

5012 appsvc.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

3e34b23829845ea98d5ca16c8710ab8ace5a7d4b6f683bffa74743dc8d85d723.exe

pid process

320 3e34b23829845ea98d5ca16c8710ab8ace5a7d4b6f683bffa74743dc8d85d723.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

appsvc.exe

description pid process

Token: SeDebugPrivilege 5012 appsvc.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

appsvc.exe

pid process

5012 appsvc.exe

pid	process
320	3e34b23829845ea98d5ca16c8710ab8ace5a7d4b6f683bffa74743dc8d85d723.exe

description	pid	process
Token: SeDebugPrivilege	5012	appsvc.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

3e34b23829845ea98d5ca16c8710ab8ace5a7d4b6f683bffa74743dc8d85d723.exe

description	pid	process	target process
PID 320 wrote to memory of 5012	320	3e34b23829845ea98d5ca16c8710ab8ace5a7d4b6f683bffa74743dc8d85d723.exe	appsvc.exe
PID 320 wrote to memory of 5012	320	3e34b23829845ea98d5ca16c8710ab8ace5a7d4b6f683bffa74743dc8d85d723.exe	appsvc.exe
PID 320 wrote to memory of 5012	320	3e34b23829845ea98d5ca16c8710ab8ace5a7d4b6f683bffa74743dc8d85d723.exe	appsvc.exe

C:\Users\Admin\AppData\Local\Temp\3e34b23829845ea98d5ca16c8710ab8ace5a7d4b6f683bffa74743dc8d85d723.exe
"C:\Users\Admin\AppData\Local\Temp\3e34b23829845ea98d5ca16c8710ab8ace5a7d4b6f683bffa74743dc8d85d723.exe"
1⤵
- Checks computer location settings
- Drops file in System32 directory
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:320
- C:\Windows\SysWOW64\Application Services\appsvc.exe
  "C:\Windows\system32\Application Services\appsvc.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Modifies visiblity of hidden/system files in Explorer
  - Executes dropped EXE
  - Sets file execution options in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:5012

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Registry Run Keys / Startup Folder

Winlogon Helper DLL

Privilege Escalation

Defense Evasion

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\Application Services\appsvc.exe

Filesize
95KB

MD5
b43c648d70f4a5570f2ef321f0abb058

SHA1
7a4630267fc5de6b6c21b7a0897219196ae2caec

SHA256
3e34b23829845ea98d5ca16c8710ab8ace5a7d4b6f683bffa74743dc8d85d723

SHA512
b789968356415f9c6d4fddef8ce10477d7c9b010f03c1a5ef03d2402be47412d82c8a969989185dc53becb68c339f16261577e7642b03f092a4cb63377a62f8e

Download Submit
C:\Windows\SysWOW64\Application Services\appsvc.exe

Filesize
95KB

MD5
b43c648d70f4a5570f2ef321f0abb058

SHA1
7a4630267fc5de6b6c21b7a0897219196ae2caec

SHA256
3e34b23829845ea98d5ca16c8710ab8ace5a7d4b6f683bffa74743dc8d85d723

SHA512
b789968356415f9c6d4fddef8ce10477d7c9b010f03c1a5ef03d2402be47412d82c8a969989185dc53becb68c339f16261577e7642b03f092a4cb63377a62f8e

Download Submit
memory/320-132-0x0000000075310000-0x00000000758C1000-memory.dmp

Filesize
5.7MB

Download
memory/320-133-0x0000000075310000-0x00000000758C1000-memory.dmp

Filesize
5.7MB

Download
memory/320-139-0x0000000075310000-0x00000000758C1000-memory.dmp

Filesize
5.7MB

Download
memory/5012-134-0x0000000000000000-mapping.dmp

Download
memory/5012-137-0x0000000075310000-0x00000000758C1000-memory.dmp

Filesize
5.7MB

Download
memory/5012-138-0x0000000075310000-0x00000000758C1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads