tofsee | 43acbb2282a9895367b08adc255ae24499f5caf28fb2e8b32a3d0ec8478953c2

General

Target

2024-11-10_91e95500111f9606c6d8895da8178943_mafia.exe
Size

12.2MB
MD5

91e95500111f9606c6d8895da8178943
SHA1

fa5ff18dec49823c882e20c48a2b77e59a75d2f4
SHA256

43acbb2282a9895367b08adc255ae24499f5caf28fb2e8b32a3d0ec8478953c2
SHA512

007e8b324600688264be053e2d9fc02fc4b07fec40cec02c743f20d91e2185224f64ecff9324dc1e5b30e472da6ad44fd8c1241cd92ec5c3ca76cb5030dfae2f
SSDEEP

49152:FVdrl/8HAzGCbGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGO:FVdrl/9zG

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Tofsee family
tofsee

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\tlhtuchl = "0"	svchost.exe

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

Processes:

netsh.exe

pid process

2556 netsh.exe

pid	process
2556	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\tlhtuchl\ImagePath = "C:\\Windows\\SysWOW64\\tlhtuchl\\uhvyaayl.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

3052 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

uhvyaayl.exe

pid process

2672 uhvyaayl.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

uhvyaayl.exe

description pid process target process

PID 2672 set thread context of 3052 2672 uhvyaayl.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

2872 sc.exe
2172 sc.exe
2756 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
3052	svchost.exe

pid	process
2672	uhvyaayl.exe

description	pid	process	target process
PID 2672 set thread context of 3052	2672	uhvyaayl.exe	svchost.exe

pid	process
2872	sc.exe
2172	sc.exe
2756	sc.exe

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

Processes:

netsh.exe

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

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

Processes:

cmd.exesc.exesc.exesc.exenetsh.exeuhvyaayl.exe2024-11-10_91e95500111f9606c6d8895da8178943_mafia.execmd.exesvchost.exe

description	ioc	process
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	sc.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	uhvyaayl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-10_91e95500111f9606c6d8895da8178943_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

2024-11-10_91e95500111f9606c6d8895da8178943_mafia.exeuhvyaayl.exe

description	pid	process	target process
PID 1904 wrote to memory of 2800	1904	2024-11-10_91e95500111f9606c6d8895da8178943_mafia.exe	cmd.exe
PID 1904 wrote to memory of 2800	1904	2024-11-10_91e95500111f9606c6d8895da8178943_mafia.exe	cmd.exe
PID 1904 wrote to memory of 2800	1904	2024-11-10_91e95500111f9606c6d8895da8178943_mafia.exe	cmd.exe
PID 1904 wrote to memory of 2800	1904	2024-11-10_91e95500111f9606c6d8895da8178943_mafia.exe	cmd.exe
PID 1904 wrote to memory of 2956	1904	2024-11-10_91e95500111f9606c6d8895da8178943_mafia.exe	cmd.exe
PID 1904 wrote to memory of 2956	1904	2024-11-10_91e95500111f9606c6d8895da8178943_mafia.exe	cmd.exe
PID 1904 wrote to memory of 2956	1904	2024-11-10_91e95500111f9606c6d8895da8178943_mafia.exe	cmd.exe
PID 1904 wrote to memory of 2956	1904	2024-11-10_91e95500111f9606c6d8895da8178943_mafia.exe	cmd.exe
PID 1904 wrote to memory of 2756	1904	2024-11-10_91e95500111f9606c6d8895da8178943_mafia.exe	sc.exe
PID 1904 wrote to memory of 2756	1904	2024-11-10_91e95500111f9606c6d8895da8178943_mafia.exe	sc.exe
PID 1904 wrote to memory of 2756	1904	2024-11-10_91e95500111f9606c6d8895da8178943_mafia.exe	sc.exe
PID 1904 wrote to memory of 2756	1904	2024-11-10_91e95500111f9606c6d8895da8178943_mafia.exe	sc.exe
PID 1904 wrote to memory of 2872	1904	2024-11-10_91e95500111f9606c6d8895da8178943_mafia.exe	sc.exe
PID 1904 wrote to memory of 2872	1904	2024-11-10_91e95500111f9606c6d8895da8178943_mafia.exe	sc.exe
PID 1904 wrote to memory of 2872	1904	2024-11-10_91e95500111f9606c6d8895da8178943_mafia.exe	sc.exe
PID 1904 wrote to memory of 2872	1904	2024-11-10_91e95500111f9606c6d8895da8178943_mafia.exe	sc.exe
PID 1904 wrote to memory of 2172	1904	2024-11-10_91e95500111f9606c6d8895da8178943_mafia.exe	sc.exe
PID 1904 wrote to memory of 2172	1904	2024-11-10_91e95500111f9606c6d8895da8178943_mafia.exe	sc.exe
PID 1904 wrote to memory of 2172	1904	2024-11-10_91e95500111f9606c6d8895da8178943_mafia.exe	sc.exe
PID 1904 wrote to memory of 2172	1904	2024-11-10_91e95500111f9606c6d8895da8178943_mafia.exe	sc.exe
PID 1904 wrote to memory of 2556	1904	2024-11-10_91e95500111f9606c6d8895da8178943_mafia.exe	netsh.exe
PID 1904 wrote to memory of 2556	1904	2024-11-10_91e95500111f9606c6d8895da8178943_mafia.exe	netsh.exe
PID 1904 wrote to memory of 2556	1904	2024-11-10_91e95500111f9606c6d8895da8178943_mafia.exe	netsh.exe
PID 1904 wrote to memory of 2556	1904	2024-11-10_91e95500111f9606c6d8895da8178943_mafia.exe	netsh.exe
PID 2672 wrote to memory of 3052	2672	uhvyaayl.exe	svchost.exe
PID 2672 wrote to memory of 3052	2672	uhvyaayl.exe	svchost.exe
PID 2672 wrote to memory of 3052	2672	uhvyaayl.exe	svchost.exe
PID 2672 wrote to memory of 3052	2672	uhvyaayl.exe	svchost.exe
PID 2672 wrote to memory of 3052	2672	uhvyaayl.exe	svchost.exe
PID 2672 wrote to memory of 3052	2672	uhvyaayl.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-10_91e95500111f9606c6d8895da8178943_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-10_91e95500111f9606c6d8895da8178943_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1904
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tlhtuchl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2800
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\uhvyaayl.exe" C:\Windows\SysWOW64\tlhtuchl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2956
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tlhtuchl binPath= "C:\Windows\SysWOW64\tlhtuchl\uhvyaayl.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-10_91e95500111f9606c6d8895da8178943_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2756
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tlhtuchl "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2872
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tlhtuchl
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2172
- 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:2556

C:\Windows\SysWOW64\tlhtuchl\uhvyaayl.exe
C:\Windows\SysWOW64\tlhtuchl\uhvyaayl.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-10_91e95500111f9606c6d8895da8178943_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2672
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3052

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

2

T1562

Disable or Modify System Firewall

1

T1562.004

Disable or Modify Tools

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\uhvyaayl.exe

Filesize
12.4MB

MD5
76ceda201643f4b47b9ae18ef057f641

SHA1
d71ae35f45d1f7a932f262d38d0a5aab86ee2135

SHA256
5bd9c5cc495c9da8bd18ded955d63066e296369bba1965894813e681a16db0ac

SHA512
880b79aa614484647cc762bd15caf083621cfef7364e4bb5c71452fdfd164059a108cf0ac11f05e658f8a73026cf2e0eb1d33f3768a5f5d0dd896826eeda196c

Download Submit
memory/1904-1-0x00000000002B0000-0x00000000003B0000-memory.dmp

Filesize
1024KB

Download
memory/1904-3-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/1904-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1904-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1904-8-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/2672-17-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/3052-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3052-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3052-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3052-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3052-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads