tofsee | 65e7dca3e554fa97db7b5c161d2b3b712a32563dc67f02ab98ea8c6179c11932

General

Target

2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe
Size

14.4MB
MD5

b26be96277efa679e8a1fe0e211681d7
SHA1

5dbe836df94801b9ffaaa4936961a72bf1906259
SHA256

65e7dca3e554fa97db7b5c161d2b3b712a32563dc67f02ab98ea8c6179c11932
SHA512

4555510ec6c7fdd4836afdee3687bf52f2105218c18dfc9304608ff5878cb254da62e6aa989d5889822d848e045fe4c555fca920addc2c7478249f67b21dbad0
SSDEEP

6144:lLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQo:WTYe+D2jFu+iZoUFhAz

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
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
1964	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\pwwgfskk\ImagePath = "C:\\Windows\\SysWOW64\\pwwgfskk\\vakfzlik.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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe

Deletes itself 1 IoCs

pid	Process
3984	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4036	vakfzlik.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4036 set thread context of 3984	4036	vakfzlik.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
1592	sc.exe
3084	sc.exe
2628	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
1064	2104	WerFault.exe	81
4404	4036	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	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.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	sc.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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vakfzlik.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2104 wrote to memory of 5036	2104	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	82
PID 2104 wrote to memory of 5036	2104	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	82
PID 2104 wrote to memory of 5036	2104	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	82
PID 2104 wrote to memory of 2484	2104	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	84
PID 2104 wrote to memory of 2484	2104	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	84
PID 2104 wrote to memory of 2484	2104	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	84
PID 2104 wrote to memory of 2628	2104	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	86
PID 2104 wrote to memory of 2628	2104	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	86
PID 2104 wrote to memory of 2628	2104	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	86
PID 2104 wrote to memory of 1592	2104	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	88
PID 2104 wrote to memory of 1592	2104	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	88
PID 2104 wrote to memory of 1592	2104	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	88
PID 2104 wrote to memory of 3084	2104	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	90
PID 2104 wrote to memory of 3084	2104	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	90
PID 2104 wrote to memory of 3084	2104	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	90
PID 2104 wrote to memory of 1964	2104	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	93
PID 2104 wrote to memory of 1964	2104	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	93
PID 2104 wrote to memory of 1964	2104	2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe	93
PID 4036 wrote to memory of 3984	4036	vakfzlik.exe	97
PID 4036 wrote to memory of 3984	4036	vakfzlik.exe	97
PID 4036 wrote to memory of 3984	4036	vakfzlik.exe	97
PID 4036 wrote to memory of 3984	4036	vakfzlik.exe	97
PID 4036 wrote to memory of 3984	4036	vakfzlik.exe	97

C:\Users\Admin\AppData\Local\Temp\2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2104
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pwwgfskk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5036
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vakfzlik.exe" C:\Windows\SysWOW64\pwwgfskk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2484
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pwwgfskk binPath= "C:\Windows\SysWOW64\pwwgfskk\vakfzlik.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2628
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pwwgfskk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1592
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pwwgfskk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3084
- 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:1964
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2104 -s 1296
  2⤵
  - Program crash
  PID:1064

C:\Windows\SysWOW64\pwwgfskk\vakfzlik.exe
C:\Windows\SysWOW64\pwwgfskk\vakfzlik.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-13_b26be96277efa679e8a1fe0e211681d7_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4036
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3984
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4036 -s 508
  2⤵
  - Program crash
  PID:4404

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2104 -ip 2104
1⤵
PID:744

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 4036 -ip 4036
1⤵
PID:848

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\vakfzlik.exe

Filesize
12.1MB

MD5
67b680a91acb6539dc6312e6f911ef94

SHA1
b78a54093203b2c61380422f720e7557f68eaa2a

SHA256
3706fd0edac41d14e2717167d662c8499b3589b85439dc26aaf7d58c832f47fd

SHA512
92fa4341f67a8b409a7f98b298f6f291e4516abc08522e595275130d6afbcf39ea922e1fe92b01100169dde8ed2c0e33dcb3dd97b4747790eb2acb0cc9467dfa

Download Submit
memory/2104-15-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2104-2-0x0000000000510000-0x0000000000523000-memory.dmp

Filesize
76KB

Download
memory/2104-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2104-1-0x0000000000570000-0x0000000000670000-memory.dmp

Filesize
1024KB

Download
memory/2104-17-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2104-16-0x0000000000510000-0x0000000000523000-memory.dmp

Filesize
76KB

Download
memory/3984-22-0x00000000004A0000-0x00000000004B5000-memory.dmp

Filesize
84KB

Download
memory/3984-11-0x00000000004A0000-0x00000000004B5000-memory.dmp

Filesize
84KB

Download
memory/3984-14-0x00000000004A0000-0x00000000004B5000-memory.dmp

Filesize
84KB

Download
memory/3984-21-0x00000000004A0000-0x00000000004B5000-memory.dmp

Filesize
84KB

Download
memory/3984-20-0x00000000004A0000-0x00000000004B5000-memory.dmp

Filesize
84KB

Download
memory/4036-8-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4036-19-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4036-9-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4036-10-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads