tofsee | d1b4a9cccedcd4d9dd40304709c39a7c54044be6f6cb78ad7f196b3ad9cd7047

General

Target

2025-01-29_5f4f6a20e5034ad0162008b66a0f2ed7_mafia.exe
Size

10.1MB
MD5

5f4f6a20e5034ad0162008b66a0f2ed7
SHA1

db477f781b457784413f15cdb155549a71a3b1e3
SHA256

d1b4a9cccedcd4d9dd40304709c39a7c54044be6f6cb78ad7f196b3ad9cd7047
SHA512

348bf86d77da93fd0f18bc0bcfbeb62e939df36244a6d20dbb1fe4ec6b5bc6782363e6a61304c57fc5fdb41f648954b0bf9bf78c01b3d621127a431a089f4edc
SSDEEP

3072:/LBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:2OMdRQr7OB0ypmMXnl8XEPM3noSWOC

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
4184	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\lcohwvec\ImagePath = "C:\\Windows\\SysWOW64\\lcohwvec\\fzzqbkbd.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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	2025-01-29_5f4f6a20e5034ad0162008b66a0f2ed7_mafia.exe

Deletes itself 1 IoCs

pid	Process
484	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2268	fzzqbkbd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2268 set thread context of 484	2268	fzzqbkbd.exe	103

Launches sc.exe 3 IoCs

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

pid	Process
2780	sc.exe
2752	sc.exe
1548	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
1452	3192	WerFault.exe	81
1104	2268	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-29_5f4f6a20e5034ad0162008b66a0f2ed7_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fzzqbkbd.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3192 wrote to memory of 2288	3192	2025-01-29_5f4f6a20e5034ad0162008b66a0f2ed7_mafia.exe	84
PID 3192 wrote to memory of 2288	3192	2025-01-29_5f4f6a20e5034ad0162008b66a0f2ed7_mafia.exe	84
PID 3192 wrote to memory of 2288	3192	2025-01-29_5f4f6a20e5034ad0162008b66a0f2ed7_mafia.exe	84
PID 3192 wrote to memory of 3448	3192	2025-01-29_5f4f6a20e5034ad0162008b66a0f2ed7_mafia.exe	88
PID 3192 wrote to memory of 3448	3192	2025-01-29_5f4f6a20e5034ad0162008b66a0f2ed7_mafia.exe	88
PID 3192 wrote to memory of 3448	3192	2025-01-29_5f4f6a20e5034ad0162008b66a0f2ed7_mafia.exe	88
PID 3192 wrote to memory of 2780	3192	2025-01-29_5f4f6a20e5034ad0162008b66a0f2ed7_mafia.exe	90
PID 3192 wrote to memory of 2780	3192	2025-01-29_5f4f6a20e5034ad0162008b66a0f2ed7_mafia.exe	90
PID 3192 wrote to memory of 2780	3192	2025-01-29_5f4f6a20e5034ad0162008b66a0f2ed7_mafia.exe	90
PID 3192 wrote to memory of 2752	3192	2025-01-29_5f4f6a20e5034ad0162008b66a0f2ed7_mafia.exe	92
PID 3192 wrote to memory of 2752	3192	2025-01-29_5f4f6a20e5034ad0162008b66a0f2ed7_mafia.exe	92
PID 3192 wrote to memory of 2752	3192	2025-01-29_5f4f6a20e5034ad0162008b66a0f2ed7_mafia.exe	92
PID 3192 wrote to memory of 1548	3192	2025-01-29_5f4f6a20e5034ad0162008b66a0f2ed7_mafia.exe	94
PID 3192 wrote to memory of 1548	3192	2025-01-29_5f4f6a20e5034ad0162008b66a0f2ed7_mafia.exe	94
PID 3192 wrote to memory of 1548	3192	2025-01-29_5f4f6a20e5034ad0162008b66a0f2ed7_mafia.exe	94
PID 3192 wrote to memory of 4184	3192	2025-01-29_5f4f6a20e5034ad0162008b66a0f2ed7_mafia.exe	97
PID 3192 wrote to memory of 4184	3192	2025-01-29_5f4f6a20e5034ad0162008b66a0f2ed7_mafia.exe	97
PID 3192 wrote to memory of 4184	3192	2025-01-29_5f4f6a20e5034ad0162008b66a0f2ed7_mafia.exe	97
PID 2268 wrote to memory of 484	2268	fzzqbkbd.exe	103
PID 2268 wrote to memory of 484	2268	fzzqbkbd.exe	103
PID 2268 wrote to memory of 484	2268	fzzqbkbd.exe	103
PID 2268 wrote to memory of 484	2268	fzzqbkbd.exe	103
PID 2268 wrote to memory of 484	2268	fzzqbkbd.exe	103

C:\Users\Admin\AppData\Local\Temp\2025-01-29_5f4f6a20e5034ad0162008b66a0f2ed7_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-29_5f4f6a20e5034ad0162008b66a0f2ed7_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3192
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lcohwvec\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2288
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fzzqbkbd.exe" C:\Windows\SysWOW64\lcohwvec\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3448
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create lcohwvec binPath= "C:\Windows\SysWOW64\lcohwvec\fzzqbkbd.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-29_5f4f6a20e5034ad0162008b66a0f2ed7_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2780
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description lcohwvec "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2752
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start lcohwvec
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1548
- 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:4184
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3192 -s 1036
  2⤵
  - Program crash
  PID:1452

C:\Windows\SysWOW64\lcohwvec\fzzqbkbd.exe
C:\Windows\SysWOW64\lcohwvec\fzzqbkbd.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-29_5f4f6a20e5034ad0162008b66a0f2ed7_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2268
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:484
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2268 -s 508
  2⤵
  - Program crash
  PID:1104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3192 -ip 3192
1⤵
PID:2108

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2268 -ip 2268
1⤵
PID:3648

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\fzzqbkbd.exe

Filesize
10.3MB

MD5
0dbdfd5acfc3ad7922fec862ba6c60a9

SHA1
7df4d59c518c6c5fac4ad7e7c89da6a38f361fff

SHA256
635f3acb034452e463ad28c07515b117cf9fec74c144e3383e1dc164c2413ee7

SHA512
08f40d8f8bffbf481233e88f9634b86fb74d57b24d3795a383c83e8533762f9a78ec7b3be4b52c0bf0cd494ce5384c988bb5b41e0c41de7b5a5818cfac99fab7

Download Submit
memory/484-14-0x00000000004E0000-0x00000000004F5000-memory.dmp

Filesize
84KB

Download
memory/484-17-0x00000000004E0000-0x00000000004F5000-memory.dmp

Filesize
84KB

Download
memory/484-16-0x00000000004E0000-0x00000000004F5000-memory.dmp

Filesize
84KB

Download
memory/2268-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2268-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2268-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2268-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3192-8-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/3192-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3192-1-0x0000000000660000-0x0000000000760000-memory.dmp

Filesize
1024KB

Download
memory/3192-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3192-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3192-2-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads