tofsee | 4a6a65e02edd13135e496081f0b9807ef98b1dfef11aee8d0d7105899edfa626

General

Target

2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe
Size

11.5MB
MD5

47ed08a16022179f606ebc1e85a106a2
SHA1

ef06e1bfdf17852a217860366ebea4250d5d5b10
SHA256

4a6a65e02edd13135e496081f0b9807ef98b1dfef11aee8d0d7105899edfa626
SHA512

09e07353cef3bf3384818c7db41dc1cb32e59b191c1d5be39b62bfa44f3e70aadf6076edf75bd0f884dcc6b23d8705b2633d889e674e9fd78dfe20b7b5d04d4e
SSDEEP

3072:mLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/i:POMdRQr7OB0ypmMXnl8XEPM3noSWOCb

Score

10^/10

tofsee defense_evasion discovery 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
Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2452	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\itecfssz\ImagePath = "C:\\Windows\\SysWOW64\\itecfssz\\keevgpgi.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-1-5-21-2436272344-4274332273-444425594-1000\Control Panel\International\Geo\Nation	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe

Deletes itself 1 IoCs

pid	Process
1912	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3984	keevgpgi.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3984 set thread context of 1912	3984	keevgpgi.exe	103

Launches sc.exe 3 IoCs

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

pid	Process
4920	sc.exe
1996	sc.exe
3968	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
2624	4216	WerFault.exe	82
3656	3984	WerFault.exe	96

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	keevgpgi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4216 wrote to memory of 2888	4216	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	86
PID 4216 wrote to memory of 2888	4216	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	86
PID 4216 wrote to memory of 2888	4216	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	86
PID 4216 wrote to memory of 468	4216	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	88
PID 4216 wrote to memory of 468	4216	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	88
PID 4216 wrote to memory of 468	4216	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	88
PID 4216 wrote to memory of 4920	4216	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	90
PID 4216 wrote to memory of 4920	4216	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	90
PID 4216 wrote to memory of 4920	4216	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	90
PID 4216 wrote to memory of 1996	4216	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	92
PID 4216 wrote to memory of 1996	4216	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	92
PID 4216 wrote to memory of 1996	4216	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	92
PID 4216 wrote to memory of 3968	4216	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	94
PID 4216 wrote to memory of 3968	4216	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	94
PID 4216 wrote to memory of 3968	4216	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	94
PID 4216 wrote to memory of 2452	4216	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	97
PID 4216 wrote to memory of 2452	4216	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	97
PID 4216 wrote to memory of 2452	4216	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	97
PID 3984 wrote to memory of 1912	3984	keevgpgi.exe	103
PID 3984 wrote to memory of 1912	3984	keevgpgi.exe	103
PID 3984 wrote to memory of 1912	3984	keevgpgi.exe	103
PID 3984 wrote to memory of 1912	3984	keevgpgi.exe	103
PID 3984 wrote to memory of 1912	3984	keevgpgi.exe	103

C:\Users\Admin\AppData\Local\Temp\2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4216
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\itecfssz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2888
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\keevgpgi.exe" C:\Windows\SysWOW64\itecfssz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:468
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create itecfssz binPath= "C:\Windows\SysWOW64\itecfssz\keevgpgi.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4920
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description itecfssz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1996
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start itecfssz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3968
- 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:2452
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4216 -s 1188
  2⤵
  - Program crash
  PID:2624

C:\Windows\SysWOW64\itecfssz\keevgpgi.exe
C:\Windows\SysWOW64\itecfssz\keevgpgi.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3984
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1912
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3984 -s 512
  2⤵
  - Program crash
  PID:3656

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4216 -ip 4216
1⤵
PID:1000

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3984 -ip 3984
1⤵
PID:5060

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

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Downloads

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

Filesize
14.8MB

MD5
d4364d05e95824b67db490a8d95f9fdd

SHA1
ef331c4235f32556a897c8b88f147358b968cccc

SHA256
abadc617e8a448d3c4c6a6137202bb4fdbaae647610b36c9abbfa91aab40239d

SHA512
8f12bb9a3d3eb20b63946eb2a34fd3d6542383bd1ed85744f71b7945a88f559c6a15fd6cdc2483a3bec7edf96374f5bfadd2cdcd00b4937997facb12865ca830

Download Submit
memory/1912-14-0x0000000000BD0000-0x0000000000BE5000-memory.dmp

Filesize
84KB

Download
memory/1912-17-0x0000000000BD0000-0x0000000000BE5000-memory.dmp

Filesize
84KB

Download
memory/1912-16-0x0000000000BD0000-0x0000000000BE5000-memory.dmp

Filesize
84KB

Download
memory/3984-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3984-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3984-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3984-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4216-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4216-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4216-1-0x0000000000680000-0x0000000000780000-memory.dmp

Filesize
1024KB

Download
memory/4216-8-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/4216-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4216-2-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads