tofsee | 0398bddc85d479504d1353e2d665cb53b9470233be52ada7e5ba6c20a5f40bc1

General

Target

2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe
Size

13.3MB
MD5

faad12ce0d384a4195103d02f56bc1d4
SHA1

f42d78031526b2a2cbfa02a9090bb6ffde99f7d3
SHA256

0398bddc85d479504d1353e2d665cb53b9470233be52ada7e5ba6c20a5f40bc1
SHA512

07d71c5aa9a71f47258127e983724333eece34906fc590337ea2fe5dd761d2d605e4c533d5cea72eb26e601ed4c0066c399d078af8d5123bef3e45455353ff7b
SSDEEP

24576:o6WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQ:1WdLQk

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
2272	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\nwoljwrm\ImagePath = "C:\\Windows\\SysWOW64\\nwoljwrm\\wrvndoqo.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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe

Deletes itself 1 IoCs

pid	Process
1984	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4856	wrvndoqo.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4856 set thread context of 1984	4856	wrvndoqo.exe	99

Launches sc.exe 3 IoCs

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

pid	Process
4484	sc.exe
4960	sc.exe
1724	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4528	1208	WerFault.exe	82
972	4856	WerFault.exe	93

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	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wrvndoqo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1208 wrote to memory of 3304	1208	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	83
PID 1208 wrote to memory of 3304	1208	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	83
PID 1208 wrote to memory of 3304	1208	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	83
PID 1208 wrote to memory of 4664	1208	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	85
PID 1208 wrote to memory of 4664	1208	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	85
PID 1208 wrote to memory of 4664	1208	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	85
PID 1208 wrote to memory of 4484	1208	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	87
PID 1208 wrote to memory of 4484	1208	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	87
PID 1208 wrote to memory of 4484	1208	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	87
PID 1208 wrote to memory of 4960	1208	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	89
PID 1208 wrote to memory of 4960	1208	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	89
PID 1208 wrote to memory of 4960	1208	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	89
PID 1208 wrote to memory of 1724	1208	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	91
PID 1208 wrote to memory of 1724	1208	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	91
PID 1208 wrote to memory of 1724	1208	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	91
PID 1208 wrote to memory of 2272	1208	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	94
PID 1208 wrote to memory of 2272	1208	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	94
PID 1208 wrote to memory of 2272	1208	2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe	94
PID 4856 wrote to memory of 1984	4856	wrvndoqo.exe	99
PID 4856 wrote to memory of 1984	4856	wrvndoqo.exe	99
PID 4856 wrote to memory of 1984	4856	wrvndoqo.exe	99
PID 4856 wrote to memory of 1984	4856	wrvndoqo.exe	99
PID 4856 wrote to memory of 1984	4856	wrvndoqo.exe	99

C:\Users\Admin\AppData\Local\Temp\2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1208
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nwoljwrm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3304
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wrvndoqo.exe" C:\Windows\SysWOW64\nwoljwrm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4664
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create nwoljwrm binPath= "C:\Windows\SysWOW64\nwoljwrm\wrvndoqo.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4484
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description nwoljwrm "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4960
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start nwoljwrm
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1724
- 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:2272
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1208 -s 900
  2⤵
  - Program crash
  PID:4528

C:\Windows\SysWOW64\nwoljwrm\wrvndoqo.exe
C:\Windows\SysWOW64\nwoljwrm\wrvndoqo.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-18_faad12ce0d384a4195103d02f56bc1d4_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4856
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1984
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4856 -s 512
  2⤵
  - Program crash
  PID:972

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1208 -ip 1208
1⤵
PID:1956

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 4856 -ip 4856
1⤵
PID:816

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\wrvndoqo.exe

Filesize
12.1MB

MD5
8570ce7b69c64c431f7cd50a9e9b01b8

SHA1
90e75aadb3fe7ef7f65b339d6ee9fc2d97204ae4

SHA256
2da630782413984bd688e6593d647015a53cb8d0b353cd17430575fb7cdb103f

SHA512
db4bbc0a5914f95e6d97b46c83809f18f7a083b1661ba19419b68d9022a160e508d247bc7ce2918e16ee7b026449a06f7092aae91143a369d8f22ec28ecc6277

Download Submit
memory/1208-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1208-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1208-2-0x0000000000520000-0x0000000000533000-memory.dmp

Filesize
76KB

Download
memory/1208-8-0x0000000000520000-0x0000000000533000-memory.dmp

Filesize
76KB

Download
memory/1208-7-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1208-1-0x0000000000670000-0x0000000000770000-memory.dmp

Filesize
1024KB

Download
memory/1984-14-0x0000000000330000-0x0000000000345000-memory.dmp

Filesize
84KB

Download
memory/1984-16-0x0000000000330000-0x0000000000345000-memory.dmp

Filesize
84KB

Download
memory/1984-17-0x0000000000330000-0x0000000000345000-memory.dmp

Filesize
84KB

Download
memory/4856-11-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4856-13-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4856-12-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4856-18-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads