tofsee | ac4e7757c7dea93f72b25afa4468368064d32a87d6c94c721f8d6d5b4930dea0

General

Target

2025-01-30_06286414450c45f3aa566001a4d0a38b_mafia.exe
Size

10.3MB
MD5

06286414450c45f3aa566001a4d0a38b
SHA1

80cc31e61c1fac6c66e8514365f99d5e980c0672
SHA256

ac4e7757c7dea93f72b25afa4468368064d32a87d6c94c721f8d6d5b4930dea0
SHA512

c8d947e6917f17272207c580638440394ff6fc3c495aa565f6feb0c3695b4d7c58618f736415b2165e4c8a5251228cba254507e8ed30c86d6cf69d995ce41959
SSDEEP

24576:UEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZd:xfotH

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
2100	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\jbjwfpje\ImagePath = "C:\\Windows\\SysWOW64\\jbjwfpje\\mlzbpmnf.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	2025-01-30_06286414450c45f3aa566001a4d0a38b_mafia.exe

Deletes itself 1 IoCs

pid	Process
4336	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
5012	mlzbpmnf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5012 set thread context of 4336	5012	mlzbpmnf.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
2532	sc.exe
1192	sc.exe
2696	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
3668	3204	WerFault.exe	83
3304	5012	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	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	mlzbpmnf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-30_06286414450c45f3aa566001a4d0a38b_mafia.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	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3204 wrote to memory of 4792	3204	2025-01-30_06286414450c45f3aa566001a4d0a38b_mafia.exe	86
PID 3204 wrote to memory of 4792	3204	2025-01-30_06286414450c45f3aa566001a4d0a38b_mafia.exe	86
PID 3204 wrote to memory of 4792	3204	2025-01-30_06286414450c45f3aa566001a4d0a38b_mafia.exe	86
PID 3204 wrote to memory of 5028	3204	2025-01-30_06286414450c45f3aa566001a4d0a38b_mafia.exe	88
PID 3204 wrote to memory of 5028	3204	2025-01-30_06286414450c45f3aa566001a4d0a38b_mafia.exe	88
PID 3204 wrote to memory of 5028	3204	2025-01-30_06286414450c45f3aa566001a4d0a38b_mafia.exe	88
PID 3204 wrote to memory of 1192	3204	2025-01-30_06286414450c45f3aa566001a4d0a38b_mafia.exe	90
PID 3204 wrote to memory of 1192	3204	2025-01-30_06286414450c45f3aa566001a4d0a38b_mafia.exe	90
PID 3204 wrote to memory of 1192	3204	2025-01-30_06286414450c45f3aa566001a4d0a38b_mafia.exe	90
PID 3204 wrote to memory of 2696	3204	2025-01-30_06286414450c45f3aa566001a4d0a38b_mafia.exe	92
PID 3204 wrote to memory of 2696	3204	2025-01-30_06286414450c45f3aa566001a4d0a38b_mafia.exe	92
PID 3204 wrote to memory of 2696	3204	2025-01-30_06286414450c45f3aa566001a4d0a38b_mafia.exe	92
PID 3204 wrote to memory of 2532	3204	2025-01-30_06286414450c45f3aa566001a4d0a38b_mafia.exe	94
PID 3204 wrote to memory of 2532	3204	2025-01-30_06286414450c45f3aa566001a4d0a38b_mafia.exe	94
PID 3204 wrote to memory of 2532	3204	2025-01-30_06286414450c45f3aa566001a4d0a38b_mafia.exe	94
PID 3204 wrote to memory of 2100	3204	2025-01-30_06286414450c45f3aa566001a4d0a38b_mafia.exe	97
PID 3204 wrote to memory of 2100	3204	2025-01-30_06286414450c45f3aa566001a4d0a38b_mafia.exe	97
PID 3204 wrote to memory of 2100	3204	2025-01-30_06286414450c45f3aa566001a4d0a38b_mafia.exe	97
PID 5012 wrote to memory of 4336	5012	mlzbpmnf.exe	102
PID 5012 wrote to memory of 4336	5012	mlzbpmnf.exe	102
PID 5012 wrote to memory of 4336	5012	mlzbpmnf.exe	102
PID 5012 wrote to memory of 4336	5012	mlzbpmnf.exe	102
PID 5012 wrote to memory of 4336	5012	mlzbpmnf.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-01-30_06286414450c45f3aa566001a4d0a38b_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-30_06286414450c45f3aa566001a4d0a38b_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3204
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jbjwfpje\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4792
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mlzbpmnf.exe" C:\Windows\SysWOW64\jbjwfpje\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5028
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jbjwfpje binPath= "C:\Windows\SysWOW64\jbjwfpje\mlzbpmnf.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-30_06286414450c45f3aa566001a4d0a38b_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1192
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jbjwfpje "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2696
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jbjwfpje
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2532
- 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:2100
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3204 -s 1036
  2⤵
  - Program crash
  PID:3668

C:\Windows\SysWOW64\jbjwfpje\mlzbpmnf.exe
C:\Windows\SysWOW64\jbjwfpje\mlzbpmnf.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-30_06286414450c45f3aa566001a4d0a38b_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5012
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4336
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5012 -s 512
  2⤵
  - Program crash
  PID:3304

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3204 -ip 3204
1⤵
PID:3388

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 5012 -ip 5012
1⤵
PID:2620

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\mlzbpmnf.exe

Filesize
15.0MB

MD5
41c4c5e73b3026a52e16aee18c36e815

SHA1
9ea1defbd0bbe9c3f26ccf2df27cefe3bcfa2dc0

SHA256
ee240324b790746cbcf05867b7a0c0b79064b09a0143b8f4ad269bf49076511b

SHA512
276d78921ecebe0fd944a60f3113ebff4ab9806323e4f424d7481c1bdde7a2a9ae16c20a0626d41c5eb06b5fd744c43d042754c298f0314c61eb8dedc37f67d7

Download Submit
memory/3204-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3204-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3204-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/3204-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3204-8-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/3204-1-0x0000000000540000-0x0000000000640000-memory.dmp

Filesize
1024KB

Download
memory/4336-14-0x00000000004A0000-0x00000000004B5000-memory.dmp

Filesize
84KB

Download
memory/4336-16-0x00000000004A0000-0x00000000004B5000-memory.dmp

Filesize
84KB

Download
memory/4336-17-0x00000000004A0000-0x00000000004B5000-memory.dmp

Filesize
84KB

Download
memory/5012-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/5012-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/5012-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/5012-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads