tofsee | c187031a129855f7c175d53ea08fbc3251e4effd126ea02c1e10437e36b7d4f2

General

Target

2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe
Size

11.2MB
MD5

eaf1c52f2fc5ea258111fcae8a188e94
SHA1

b1136f6d9f51748cd885f001d299227be1f8030a
SHA256

c187031a129855f7c175d53ea08fbc3251e4effd126ea02c1e10437e36b7d4f2
SHA512

fa5fbcba150d8286a33e03914e1467db04dee6e4a262f12433abbe8db0302e2c90c666cff6ee413208341b1992e5c4caff35b9db23172fa41d01e6b314bed569
SSDEEP

196608:0yXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX3:JXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXH

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
1956	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\funhwdrs\ImagePath = "C:\\Windows\\SysWOW64\\funhwdrs\\reqngtyi.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	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe

Deletes itself 1 IoCs

pid	Process
3256	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1752	reqngtyi.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1752 set thread context of 3256	1752	reqngtyi.exe	94

Launches sc.exe 3 IoCs

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

pid	Process
3340	sc.exe
1168	sc.exe
3388	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

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	reqngtyi.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
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	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1208 wrote to memory of 4492	1208	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	83
PID 1208 wrote to memory of 4492	1208	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	83
PID 1208 wrote to memory of 4492	1208	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	83
PID 1208 wrote to memory of 2432	1208	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	85
PID 1208 wrote to memory of 2432	1208	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	85
PID 1208 wrote to memory of 2432	1208	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	85
PID 1208 wrote to memory of 3340	1208	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	87
PID 1208 wrote to memory of 3340	1208	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	87
PID 1208 wrote to memory of 3340	1208	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	87
PID 1208 wrote to memory of 1168	1208	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	89
PID 1208 wrote to memory of 1168	1208	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	89
PID 1208 wrote to memory of 1168	1208	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	89
PID 1208 wrote to memory of 3388	1208	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	91
PID 1208 wrote to memory of 3388	1208	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	91
PID 1208 wrote to memory of 3388	1208	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	91
PID 1752 wrote to memory of 3256	1752	reqngtyi.exe	94
PID 1752 wrote to memory of 3256	1752	reqngtyi.exe	94
PID 1752 wrote to memory of 3256	1752	reqngtyi.exe	94
PID 1752 wrote to memory of 3256	1752	reqngtyi.exe	94
PID 1752 wrote to memory of 3256	1752	reqngtyi.exe	94
PID 1208 wrote to memory of 1956	1208	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	95
PID 1208 wrote to memory of 1956	1208	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	95
PID 1208 wrote to memory of 1956	1208	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	95

C:\Users\Admin\AppData\Local\Temp\2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_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\funhwdrs\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4492
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\reqngtyi.exe" C:\Windows\SysWOW64\funhwdrs\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2432
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create funhwdrs binPath= "C:\Windows\SysWOW64\funhwdrs\reqngtyi.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3340
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description funhwdrs "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1168
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start funhwdrs
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3388
- 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:1956

C:\Windows\SysWOW64\funhwdrs\reqngtyi.exe
C:\Windows\SysWOW64\funhwdrs\reqngtyi.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1752
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3256

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\reqngtyi.exe

Filesize
11.5MB

MD5
cda74c5738e31a4a257d3fe890b36e7a

SHA1
7ed8321eabb0960cf864c631c909aabc29740512

SHA256
58486a3d22bba344833bdb51111203c33a6afbaa0265e0c74064df9133b77859

SHA512
99de66be5970e741b1ec3897c73b2ba8cdb63baff2624ca45f6e3d98d1748e7803fcda8c6ec81b9dbbadfc7399e2d914b860c24b3635d65cb6b6b4fc1832306a

Download Submit
memory/1208-16-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

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

Filesize
84KB

Download
memory/1208-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/1208-17-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1208-1-0x0000000000470000-0x0000000000570000-memory.dmp

Filesize
1024KB

Download
memory/1208-15-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/1752-8-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/1752-13-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3256-9-0x0000000001060000-0x0000000001075000-memory.dmp

Filesize
84KB

Download
memory/3256-14-0x0000000001060000-0x0000000001075000-memory.dmp

Filesize
84KB

Download
memory/3256-18-0x0000000001060000-0x0000000001075000-memory.dmp

Filesize
84KB

Download
memory/3256-19-0x0000000001060000-0x0000000001075000-memory.dmp

Filesize
84KB

Download
memory/3256-20-0x0000000001060000-0x0000000001075000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads