609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51

Analysis

max time kernel
107s
max time network
109s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
03-12-2024 16:40

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General

Target

609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe
Size

136KB
MD5

6b9f3f1d51c4c4608e9459fb2a30d390
SHA1

63aed05364191d433c6055f727ad2c669f019af5
SHA256

609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51
SHA512

a5aaef1da126388613ada546b56a456822206d802f0c8138382130b0594391ef8cf04422227a85fa59d6449c70e0bf5e469ccff4bd8a54ea5123a67a71ff722d
SSDEEP

3072:3LVoDvPd+A4WhkhXDl+i1lApwH08TdpIIIIIIIIIIIIIIIII/IIIIIIIIIIIIII5:ZopGGgbiwU8J+

Score

10^/10

discovery evasion persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 3 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

Processes:

609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exeSMSSik.exeSMSSik.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe SMSSik.exe"	609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe SMSSik.exe"	SMSSik.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe SMSSik.exe"	SMSSik.exe

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

evasion

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Processes:

609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exeSMSSik.exe

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	SMSSik.exe

Disables RegEdit via registry modification 2 IoCs

evasion

Processes:

609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exeSMSSik.exe

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	SMSSik.exe

Executes dropped EXE 2 IoCs

Processes:

SMSSik.exeSMSSik.exe

pid	Process
640	SMSSik.exe
2156	SMSSik.exe

Modifies system executable filetype association 2 TTPs 8 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

Processes:

609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\Shell\open\command	609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*"	609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\batfile\Shell\open\command	609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*"	609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\comfile\Shell\open\command	609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\comfile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*"	609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\piffile\Shell\open\command	609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\piffile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*"	609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Service Host = "C:\\Windows\\SMSSik.exe"	609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe

Drops file in Windows directory 40 IoCs

Processes:

SMSSik.exe609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exeSMSSik.exe

description	ioc	Process
File created	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Norton AntiVirus 2004 Crack.exe	SMSSik.exe
File created	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Norton AntiVirus 2004 Keygen.exe	SMSSik.exe
File created	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\BearShare Pro 4.3.0 Crack.exe	SMSSik.exe
File opened for modification	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\BearShare Pro 4.3.0 Crack.exe	SMSSik.exe
File created	C:\Windows\svchost.exe	609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe
File opened for modification	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\	609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe
File opened for modification	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\	SMSSik.exe
File created	C:\Windows\message.dat	SMSSik.exe
File opened for modification	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Half Life 2 beta patch2 Crack.exe	SMSSik.exe
File created	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Halo Keygen.exe	SMSSik.exe
File created	C:\Windows\message.htm	SMSSik.exe
File opened for modification	C:\Windows\SMSSik.exe	609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe
File created	C:\Windows\SMSSik.exe	SMSSik.exe
File opened for modification	C:\Windows\svchost.exe	SMSSik.exe
File opened for modification	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\McAfee SpamKiller 2004 Crack.exe	SMSSik.exe
File opened for modification	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Borland C++ BuilderX 1.0 Enterprise Edition Crack.exe	SMSSik.exe
File created	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Norton Antispam 2004 Crack.exe	SMSSik.exe
File opened for modification	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Norton SystemWorks 2004 Keygen.exe	SMSSik.exe
File created	C:\Windows\SMSSik.exe	609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe
File created	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Half Life 2 beta patch2 Crack.exe	SMSSik.exe
File created	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\McAfee SpamKiller 2004 Crack.exe	SMSSik.exe
File created	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\McAfee VirusScan Home Edition 2004 Keygen.exe	SMSSik.exe
File created	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Norton SystemWorks 2004 Keygen.exe	SMSSik.exe
File created	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Macromedia Contribute 2 Crack.exe	SMSSik.exe
File opened for modification	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\	SMSSik.exe
File opened for modification	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Halo Keygen.exe	SMSSik.exe
File created	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Borland C++ BuilderX 1.0 Enterprise Edition Crack.exe	SMSSik.exe
File opened for modification	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Norton AntiVirus 2004 Keygen.exe	SMSSik.exe
File created	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Half Life 2 Crack.exe	SMSSik.exe
File opened for modification	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Macromedia Contribute 2 Crack.exe	SMSSik.exe
File created	C:\Windows\SMSSik.exe	SMSSik.exe
File opened for modification	C:\Windows\svchost.exe	SMSSik.exe
File created	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\McAfee VirusScan Home Edition 2004 Crack.exe	SMSSik.exe
File opened for modification	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\McAfee VirusScan Home Edition 2004 Crack.exe	SMSSik.exe
File opened for modification	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\McAfee VirusScan Home Edition 2004 Keygen.exe	SMSSik.exe
File opened for modification	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Norton Antispam 2004 Crack.exe	SMSSik.exe
File opened for modification	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Norton AntiVirus 2004 Crack.exe	SMSSik.exe
File created	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Microsoft Office System Professional V2003 Crack.exe	SMSSik.exe
File opened for modification	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Microsoft Office System Professional V2003 Crack.exe	SMSSik.exe
File opened for modification	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Half Life 2 Crack.exe	SMSSik.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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

Processes:

609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exeSMSSik.exeSMSSik.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SMSSik.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SMSSik.exe

Modifies data under HKEY_USERS 13 IoCs

Processes:

SMSSik.exe

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced	SMSSik.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	SMSSik.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	SMSSik.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows	SMSSik.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached	SMSSik.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer	SMSSik.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	SMSSik.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\System	SMSSik.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion	SMSSik.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies	SMSSik.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	SMSSik.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached\{40DD6E20-7C17-11CE-A804-00AA003CA9F6} {000214FC-0000-0000-C000-000000000046} 0xFFFF = 0100000000000000dbe87c1da245db01	SMSSik.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\TelemetrySalt = "7"	SMSSik.exe

Modifies registry class 12 IoCs

Processes:

609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*"	609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\comfile\Shell\open\command	609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\comfile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*"	609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\scrfile\Shell\open\command	609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*"	609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\cmdfile\Shell\open\command	609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\batfile\Shell\open\command	609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\piffile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*"	609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\scrfile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" /S"	609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\Shell\open\command	609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\cmdfile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*"	609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\piffile\Shell\open\command	609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

SMSSik.exe

pid	Process
2156	SMSSik.exe
2156	SMSSik.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe

description	pid	Process	procid_target
PID 1224 wrote to memory of 640	1224	609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe	83
PID 1224 wrote to memory of 640	1224	609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe	83
PID 1224 wrote to memory of 640	1224	609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe	83

C:\Users\Admin\AppData\Local\Temp\609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe
"C:\Users\Admin\AppData\Local\Temp\609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51N.exe"
1⤵
- Modifies WinLogon for persistence
- Modifies visiblity of hidden/system files in Explorer
- Disables RegEdit via registry modification
- Modifies system executable filetype association
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1224
- C:\Windows\SMSSik.exe
  "C:\Windows\SMSSik.exe" -xInstallOurNiceServicesYes
  2⤵
  - Modifies WinLogon for persistence
  - Modifies visiblity of hidden/system files in Explorer
  - Disables RegEdit via registry modification
  - Executes dropped EXE
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  PID:640

C:\Windows\SMSSik.exe
C:\Windows\SMSSik.exe -xStartOurNiceServicesYes
1⤵
- Modifies WinLogon for persistence
- Executes dropped EXE
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
PID:2156

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

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

C:\Windows\SMSSik.exe

Filesize
136KB

MD5
6b9f3f1d51c4c4608e9459fb2a30d390

SHA1
63aed05364191d433c6055f727ad2c669f019af5

SHA256
609e3a4e71537df2af6902d6cacc7d1f72089823ecfdfab987b293d2530a8a51

SHA512
a5aaef1da126388613ada546b56a456822206d802f0c8138382130b0594391ef8cf04422227a85fa59d6449c70e0bf5e469ccff4bd8a54ea5123a67a71ff722d

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C:\Windows\svchost.exe

MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

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