tofsee | 2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f

General

Target

2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe
Size

12.2MB
MD5

c944914ddfef1d677fae78bf3e0b7f30
SHA1

8b19c08d3944854e0ef40c61fd2d29631ba50497
SHA256

2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f
SHA512

45e12665d44fb3dcb59d830a425cbf4560eea775ecdcaa8d32b1c92ab94c063adf95f36ea7a1f6bb29d9e2d06a6134d30c9d43c37934e6ef10584efb9020e1ec
SSDEEP

24576:h9PwZJBqV72ZFcZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ:6XF

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

patmushta.info

ovicrush.cn

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Tofsee family
tofsee
Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
3896	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\oraclyif\ImagePath = "C:\\Windows\\SysWOW64\\oraclyif\\dhwasgdt.exe"	svchost.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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe

Deletes itself 1 IoCs

pid	Process
2016	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2504	dhwasgdt.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2504 set thread context of 2016	2504	dhwasgdt.exe	93

Launches sc.exe 3 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
732	sc.exe
3932	sc.exe
5116	sc.exe

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

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3868	1260	WerFault.exe	81
3972	2504	WerFault.exe	92

System Location Discovery: System Language Discovery 1 TTPs 9 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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dhwasgdt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1260 wrote to memory of 3876	1260	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	82
PID 1260 wrote to memory of 3876	1260	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	82
PID 1260 wrote to memory of 3876	1260	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	82
PID 1260 wrote to memory of 2484	1260	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	84
PID 1260 wrote to memory of 2484	1260	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	84
PID 1260 wrote to memory of 2484	1260	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	84
PID 1260 wrote to memory of 3932	1260	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	86
PID 1260 wrote to memory of 3932	1260	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	86
PID 1260 wrote to memory of 3932	1260	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	86
PID 1260 wrote to memory of 5116	1260	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	88
PID 1260 wrote to memory of 5116	1260	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	88
PID 1260 wrote to memory of 5116	1260	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	88
PID 1260 wrote to memory of 732	1260	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	90
PID 1260 wrote to memory of 732	1260	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	90
PID 1260 wrote to memory of 732	1260	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	90
PID 2504 wrote to memory of 2016	2504	dhwasgdt.exe	93
PID 2504 wrote to memory of 2016	2504	dhwasgdt.exe	93
PID 2504 wrote to memory of 2016	2504	dhwasgdt.exe	93
PID 2504 wrote to memory of 2016	2504	dhwasgdt.exe	93
PID 2504 wrote to memory of 2016	2504	dhwasgdt.exe	93
PID 1260 wrote to memory of 3896	1260	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	95
PID 1260 wrote to memory of 3896	1260	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	95
PID 1260 wrote to memory of 3896	1260	2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe	95

C:\Users\Admin\AppData\Local\Temp\2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe
"C:\Users\Admin\AppData\Local\Temp\2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1260
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\oraclyif\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3876
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dhwasgdt.exe" C:\Windows\SysWOW64\oraclyif\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2484
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create oraclyif binPath= "C:\Windows\SysWOW64\oraclyif\dhwasgdt.exe /d\"C:\Users\Admin\AppData\Local\Temp\2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3932
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description oraclyif "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5116
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start oraclyif
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:732
- C:\Windows\SysWOW64\netsh.exe
  "C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:3896
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1260 -s 1040
  2⤵
  - Program crash
  PID:3868

C:\Windows\SysWOW64\oraclyif\dhwasgdt.exe
C:\Windows\SysWOW64\oraclyif\dhwasgdt.exe /d"C:\Users\Admin\AppData\Local\Temp\2189b460506f57d5684e8d3d4ec0f2d94f9ba1d6e74e8efa6cc056b60cd4be9f.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2504
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2016
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2504 -s 528
  2⤵
  - Program crash
  PID:3972

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1260 -ip 1260
1⤵
PID:744

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 2504 -ip 2504
1⤵
PID:2976

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

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:\Users\Admin\AppData\Local\Temp\dhwasgdt.exe

Filesize
11.5MB

MD5
5f4de104b5dcf7904f93538578b377e4

SHA1
884043541570cd350d80cc6cb765a2d44869abb4

SHA256
c7361708b84cd5af635c3c6133ae8396134f5b20bac872975ef1e62c457b10de

SHA512
7e0b9e6ed5f41c7799a2d0b5a8223429894d8946f8d31ea7491ccd52a6348ab69486cd9a4d7b5830c48fdeb0b056f8344452ca7828a09e7aa25afabb92c115c6

Download Submit
memory/1260-18-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1260-2-0x00000000021C0000-0x00000000021D3000-memory.dmp

Filesize
76KB

Download
memory/1260-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1260-1-0x00000000006B0000-0x00000000007B0000-memory.dmp

Filesize
1024KB

Download
memory/1260-16-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1260-17-0x00000000021C0000-0x00000000021D3000-memory.dmp

Filesize
76KB

Download
memory/1260-14-0x00000000006B0000-0x00000000007B0000-memory.dmp

Filesize
1024KB

Download
memory/2016-15-0x0000000000B80000-0x0000000000B95000-memory.dmp

Filesize
84KB

Download
memory/2016-22-0x0000000000B80000-0x0000000000B95000-memory.dmp

Filesize
84KB

Download
memory/2016-23-0x0000000000B80000-0x0000000000B95000-memory.dmp

Filesize
84KB

Download
memory/2016-21-0x0000000000B80000-0x0000000000B95000-memory.dmp

Filesize
84KB

Download
memory/2016-11-0x0000000000B80000-0x0000000000B95000-memory.dmp

Filesize
84KB

Download
memory/2504-8-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/2504-20-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/2504-9-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/2504-10-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads