3604fb7bb6311043125573ecfef59ef29dda4533413ce1c6e9fa4f02003d64bb

General

Target

3604fb7bb6311043125573ecfef59ef29dda4533413ce1c6e9fa4f02003d64bb.exe
Size

63KB
MD5

0fedf754c1378503ae839f35d4d29f0c
SHA1

55e1c0f1d631188a4c86711ef09f6c91f89f8040
SHA256

3604fb7bb6311043125573ecfef59ef29dda4533413ce1c6e9fa4f02003d64bb
SHA512

362d9061194feb4ed1d1e72788754ef93bd71f0cbb3c1a037a550a58f1d8acc4bf235d66a8a74d19a73f3c554d42d1bd5d1ad9c69c0f160ef515cd241d2d7397
SSDEEP

1536:8g/9T8ROcQupqqusN3mrS/ztMhkywRFUnTmc5n4IIIIIIIIIIIIIIIIII/IIIIIB:8g585LpPCrQt7F84IIIIIIIIIIIIIII/

Score

10^/10

aspackv2 discovery evasion persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 3 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe SMSSrp.exe"	3604fb7bb6311043125573ecfef59ef29dda4533413ce1c6e9fa4f02003d64bb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe SMSSrp.exe"	SMSSrp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe SMSSrp.exe"	SMSSrp.exe

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

evasion

Hidden Files and Directories

T1564.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	3604fb7bb6311043125573ecfef59ef29dda4533413ce1c6e9fa4f02003d64bb.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	SMSSrp.exe

Disables RegEdit via registry modification 2 IoCs

evasion

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	3604fb7bb6311043125573ecfef59ef29dda4533413ce1c6e9fa4f02003d64bb.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	SMSSrp.exe

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral2/files/0x0008000000023c8d-3.dat	aspack_v212_v242

Executes dropped EXE 2 IoCs

pid	Process
3384	SMSSrp.exe
4720	SMSSrp.exe

Modifies system executable filetype association 2 TTPs 8 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*"	3604fb7bb6311043125573ecfef59ef29dda4533413ce1c6e9fa4f02003d64bb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\batfile\Shell\open\command	3604fb7bb6311043125573ecfef59ef29dda4533413ce1c6e9fa4f02003d64bb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*"	3604fb7bb6311043125573ecfef59ef29dda4533413ce1c6e9fa4f02003d64bb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\comfile\Shell\open\command	3604fb7bb6311043125573ecfef59ef29dda4533413ce1c6e9fa4f02003d64bb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\comfile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*"	3604fb7bb6311043125573ecfef59ef29dda4533413ce1c6e9fa4f02003d64bb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\piffile\Shell\open\command	3604fb7bb6311043125573ecfef59ef29dda4533413ce1c6e9fa4f02003d64bb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\piffile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*"	3604fb7bb6311043125573ecfef59ef29dda4533413ce1c6e9fa4f02003d64bb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\Shell\open\command	3604fb7bb6311043125573ecfef59ef29dda4533413ce1c6e9fa4f02003d64bb.exe

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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Service Host = "C:\\Windows\\SMSSrp.exe"	3604fb7bb6311043125573ecfef59ef29dda4533413ce1c6e9fa4f02003d64bb.exe

Drops file in Windows directory 22 IoCs

description	ioc	Process
File opened for modification	C:\Windows\svchost.exe	SMSSrp.exe
File created	C:\Windows\message.dat	SMSSrp.exe
File created	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Half Life 2 beta patch2 Crack.exe	SMSSrp.exe
File created	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\TVTool v8.31 Crack.exe	SMSSrp.exe
File opened for modification	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\McAfee SpamKiller 2004 Crack.exe	SMSSrp.exe
File opened for modification	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\	3604fb7bb6311043125573ecfef59ef29dda4533413ce1c6e9fa4f02003d64bb.exe
File created	C:\Windows\SMSSrp.exe	SMSSrp.exe
File opened for modification	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\	SMSSrp.exe
File opened for modification	C:\Windows\svchost.exe	SMSSrp.exe
File created	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\NHL 2004 Keygen.exe	SMSSrp.exe
File opened for modification	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\NHL 2004 Keygen.exe	SMSSrp.exe
File opened for modification	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\TVTool v8.31 Crack.exe	SMSSrp.exe
File opened for modification	C:\Windows\SMSSrp.exe	3604fb7bb6311043125573ecfef59ef29dda4533413ce1c6e9fa4f02003d64bb.exe
File created	C:\Windows\SMSSrp.exe	SMSSrp.exe
File opened for modification	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\	SMSSrp.exe
File created	C:\Windows\message.htm	SMSSrp.exe
File created	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Sophos AntiVirus v3.74 Keygen.exe	SMSSrp.exe
File opened for modification	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Sophos AntiVirus v3.74 Keygen.exe	SMSSrp.exe
File created	C:\Windows\SMSSrp.exe	3604fb7bb6311043125573ecfef59ef29dda4533413ce1c6e9fa4f02003d64bb.exe
File created	C:\Windows\svchost.exe	3604fb7bb6311043125573ecfef59ef29dda4533413ce1c6e9fa4f02003d64bb.exe
File opened for modification	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\Half Life 2 beta patch2 Crack.exe	SMSSrp.exe
File created	C:\Windows\.{21EC2020-3AEA-1069-A2DD-08002B30309D}\McAfee SpamKiller 2004 Crack.exe	SMSSrp.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3604fb7bb6311043125573ecfef59ef29dda4533413ce1c6e9fa4f02003d64bb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SMSSrp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SMSSrp.exe

Modifies data under HKEY_USERS 13 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer	SMSSrp.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\TelemetrySalt = "7"	SMSSrp.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced	SMSSrp.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\System	SMSSrp.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	SMSSrp.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	SMSSrp.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows	SMSSrp.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 = 0100000000000000b05dfcd6663cdb01	SMSSrp.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	SMSSrp.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion	SMSSrp.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies	SMSSrp.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	SMSSrp.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached	SMSSrp.exe

Modifies registry class 12 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\scrfile\Shell\open\command	3604fb7bb6311043125573ecfef59ef29dda4533413ce1c6e9fa4f02003d64bb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\cmdfile\Shell\open\command	3604fb7bb6311043125573ecfef59ef29dda4533413ce1c6e9fa4f02003d64bb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\batfile\Shell\open\command	3604fb7bb6311043125573ecfef59ef29dda4533413ce1c6e9fa4f02003d64bb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\batfile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*"	3604fb7bb6311043125573ecfef59ef29dda4533413ce1c6e9fa4f02003d64bb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\comfile\Shell\open\command	3604fb7bb6311043125573ecfef59ef29dda4533413ce1c6e9fa4f02003d64bb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\comfile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*"	3604fb7bb6311043125573ecfef59ef29dda4533413ce1c6e9fa4f02003d64bb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\piffile\Shell\open\command	3604fb7bb6311043125573ecfef59ef29dda4533413ce1c6e9fa4f02003d64bb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\piffile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*"	3604fb7bb6311043125573ecfef59ef29dda4533413ce1c6e9fa4f02003d64bb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\scrfile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" /S"	3604fb7bb6311043125573ecfef59ef29dda4533413ce1c6e9fa4f02003d64bb.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\Shell\open\command	3604fb7bb6311043125573ecfef59ef29dda4533413ce1c6e9fa4f02003d64bb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*"	3604fb7bb6311043125573ecfef59ef29dda4533413ce1c6e9fa4f02003d64bb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\cmdfile\shell\open\command\ = "C:\\Windows\\svchost.exe \"%1\" %*"	3604fb7bb6311043125573ecfef59ef29dda4533413ce1c6e9fa4f02003d64bb.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4720	SMSSrp.exe
4720	SMSSrp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4804 wrote to memory of 3384	4804	3604fb7bb6311043125573ecfef59ef29dda4533413ce1c6e9fa4f02003d64bb.exe	83
PID 4804 wrote to memory of 3384	4804	3604fb7bb6311043125573ecfef59ef29dda4533413ce1c6e9fa4f02003d64bb.exe	83
PID 4804 wrote to memory of 3384	4804	3604fb7bb6311043125573ecfef59ef29dda4533413ce1c6e9fa4f02003d64bb.exe	83

C:\Users\Admin\AppData\Local\Temp\3604fb7bb6311043125573ecfef59ef29dda4533413ce1c6e9fa4f02003d64bb.exe
"C:\Users\Admin\AppData\Local\Temp\3604fb7bb6311043125573ecfef59ef29dda4533413ce1c6e9fa4f02003d64bb.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:4804
- C:\Windows\SMSSrp.exe
  "C:\Windows\SMSSrp.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:3384

C:\Windows\SMSSrp.exe
C:\Windows\SMSSrp.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:4720

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Defense Evasion

Hide Artifacts

1

T1564

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\SMSSrp.exe

Filesize
63KB

MD5
0fedf754c1378503ae839f35d4d29f0c

SHA1
55e1c0f1d631188a4c86711ef09f6c91f89f8040

SHA256
3604fb7bb6311043125573ecfef59ef29dda4533413ce1c6e9fa4f02003d64bb

SHA512
362d9061194feb4ed1d1e72788754ef93bd71f0cbb3c1a037a550a58f1d8acc4bf235d66a8a74d19a73f3c554d42d1bd5d1ad9c69c0f160ef515cd241d2d7397

Download Submit
memory/3384-7-0x0000000000400000-0x000000000051F000-memory.dmp

Filesize
1.1MB

Download
memory/4720-30-0x0000000000400000-0x000000000051F000-memory.dmp

Filesize
1.1MB

Download
memory/4720-55-0x0000000000400000-0x000000000051F000-memory.dmp

Filesize
1.1MB

Download
memory/4720-24-0x0000000000400000-0x000000000051F000-memory.dmp

Filesize
1.1MB

Download
memory/4720-53-0x0000000000400000-0x000000000051F000-memory.dmp

Filesize
1.1MB

Download
memory/4720-47-0x0000000000400000-0x000000000051F000-memory.dmp

Filesize
1.1MB

Download
memory/4804-36-0x0000000000400000-0x000000000051F000-memory.dmp

Filesize
1.1MB

Download
memory/4804-50-0x0000000000400000-0x000000000051F000-memory.dmp

Filesize
1.1MB

Download
memory/4804-33-0x0000000000400000-0x000000000051F000-memory.dmp

Filesize
1.1MB

Download
memory/4804-29-0x0000000000400000-0x000000000051F000-memory.dmp

Filesize
1.1MB

Download
memory/4804-46-0x0000000000400000-0x000000000051F000-memory.dmp

Filesize
1.1MB

Download
memory/4804-27-0x0000000000400000-0x000000000051F000-memory.dmp

Filesize
1.1MB

Download
memory/4804-48-0x0000000000400000-0x000000000051F000-memory.dmp

Filesize
1.1MB

Download
memory/4804-31-0x0000000000400000-0x000000000051F000-memory.dmp

Filesize
1.1MB

Download
memory/4804-52-0x0000000000400000-0x000000000051F000-memory.dmp

Filesize
1.1MB

Download
memory/4804-25-0x0000000000400000-0x000000000051F000-memory.dmp

Filesize
1.1MB

Download
memory/4804-54-0x0000000000400000-0x000000000051F000-memory.dmp

Filesize
1.1MB

Download
memory/4804-23-0x0000000000400000-0x000000000051F000-memory.dmp

Filesize
1.1MB

Download
memory/4804-56-0x0000000000400000-0x000000000051F000-memory.dmp

Filesize
1.1MB

Download
memory/4804-58-0x0000000000400000-0x000000000051F000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads