tofsee | 48e7b778ae9117667ac84d55b7b88ff40ba977f1627c12bc4d79fbe8b9143eaa

General

Target

2025-02-07_424a707fc12c3f43b9e536f3c6b1690d_mafia.exe
Size

10.4MB
MD5

424a707fc12c3f43b9e536f3c6b1690d
SHA1

402e3393e6df609c5640da49290dbd415bbbc791
SHA256

48e7b778ae9117667ac84d55b7b88ff40ba977f1627c12bc4d79fbe8b9143eaa
SHA512

fddb96c53a01dfe8389a09dd399f98096f578ee50df1794e96c10533c7350000ce9f99cbf49d4f7a8d14f2b57e2bba5c89b83b30af6e16065d62d89f72ae059d
SSDEEP

3072:zLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:6OMdRQr7OB0ypmMXnl8XEPM3noSWOC

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

Downloads MZ/PE file 1 IoCs

flow	pid	Process
52	2468	Process not Found

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
4920	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\zzytyzkw\ImagePath = "C:\\Windows\\SysWOW64\\zzytyzkw\\wetxkirr.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-1-5-21-2573923862-3221519550-2669654151-1000\Control Panel\International\Geo\Nation	2025-02-07_424a707fc12c3f43b9e536f3c6b1690d_mafia.exe

Deletes itself 1 IoCs

pid	Process
4880	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4888	wetxkirr.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4888 set thread context of 4880	4888	wetxkirr.exe	105

Launches sc.exe 3 IoCs

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

pid	Process
4684	sc.exe
1808	sc.exe
1028	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
2928	2008	WerFault.exe	85
4900	4888	WerFault.exe	99

System Location Discovery: System Language Discovery 1 TTPs 10 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	wetxkirr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-07_424a707fc12c3f43b9e536f3c6b1690d_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
4996	MicrosoftEdgeUpdate.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2008 wrote to memory of 4092	2008	2025-02-07_424a707fc12c3f43b9e536f3c6b1690d_mafia.exe	89
PID 2008 wrote to memory of 4092	2008	2025-02-07_424a707fc12c3f43b9e536f3c6b1690d_mafia.exe	89
PID 2008 wrote to memory of 4092	2008	2025-02-07_424a707fc12c3f43b9e536f3c6b1690d_mafia.exe	89
PID 2008 wrote to memory of 3032	2008	2025-02-07_424a707fc12c3f43b9e536f3c6b1690d_mafia.exe	91
PID 2008 wrote to memory of 3032	2008	2025-02-07_424a707fc12c3f43b9e536f3c6b1690d_mafia.exe	91
PID 2008 wrote to memory of 3032	2008	2025-02-07_424a707fc12c3f43b9e536f3c6b1690d_mafia.exe	91
PID 2008 wrote to memory of 4684	2008	2025-02-07_424a707fc12c3f43b9e536f3c6b1690d_mafia.exe	93
PID 2008 wrote to memory of 4684	2008	2025-02-07_424a707fc12c3f43b9e536f3c6b1690d_mafia.exe	93
PID 2008 wrote to memory of 4684	2008	2025-02-07_424a707fc12c3f43b9e536f3c6b1690d_mafia.exe	93
PID 2008 wrote to memory of 1808	2008	2025-02-07_424a707fc12c3f43b9e536f3c6b1690d_mafia.exe	95
PID 2008 wrote to memory of 1808	2008	2025-02-07_424a707fc12c3f43b9e536f3c6b1690d_mafia.exe	95
PID 2008 wrote to memory of 1808	2008	2025-02-07_424a707fc12c3f43b9e536f3c6b1690d_mafia.exe	95
PID 2008 wrote to memory of 1028	2008	2025-02-07_424a707fc12c3f43b9e536f3c6b1690d_mafia.exe	97
PID 2008 wrote to memory of 1028	2008	2025-02-07_424a707fc12c3f43b9e536f3c6b1690d_mafia.exe	97
PID 2008 wrote to memory of 1028	2008	2025-02-07_424a707fc12c3f43b9e536f3c6b1690d_mafia.exe	97
PID 2008 wrote to memory of 4920	2008	2025-02-07_424a707fc12c3f43b9e536f3c6b1690d_mafia.exe	100
PID 2008 wrote to memory of 4920	2008	2025-02-07_424a707fc12c3f43b9e536f3c6b1690d_mafia.exe	100
PID 2008 wrote to memory of 4920	2008	2025-02-07_424a707fc12c3f43b9e536f3c6b1690d_mafia.exe	100
PID 4888 wrote to memory of 4880	4888	wetxkirr.exe	105
PID 4888 wrote to memory of 4880	4888	wetxkirr.exe	105
PID 4888 wrote to memory of 4880	4888	wetxkirr.exe	105
PID 4888 wrote to memory of 4880	4888	wetxkirr.exe	105
PID 4888 wrote to memory of 4880	4888	wetxkirr.exe	105

C:\Users\Admin\AppData\Local\Temp\2025-02-07_424a707fc12c3f43b9e536f3c6b1690d_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-07_424a707fc12c3f43b9e536f3c6b1690d_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2008
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zzytyzkw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4092
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wetxkirr.exe" C:\Windows\SysWOW64\zzytyzkw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3032
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zzytyzkw binPath= "C:\Windows\SysWOW64\zzytyzkw\wetxkirr.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-07_424a707fc12c3f43b9e536f3c6b1690d_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4684
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zzytyzkw "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1808
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zzytyzkw
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1028
- 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:4920
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2008 -s 1192
  2⤵
  - Program crash
  PID:2928

C:\Windows\SysWOW64\zzytyzkw\wetxkirr.exe
C:\Windows\SysWOW64\zzytyzkw\wetxkirr.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-07_424a707fc12c3f43b9e536f3c6b1690d_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4888
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4880
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 516
  2⤵
  - Program crash
  PID:4900

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2008 -ip 2008
1⤵
PID:392

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4888 -ip 4888
1⤵
PID:1628

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU4MTUiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODE1MzQzMTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI0OTUwMzM1MTk0Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:4996

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

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\wetxkirr.exe

Filesize
13.9MB

MD5
d762f63f0a7bac967d9236dbafaeaf64

SHA1
aad4df5792ed2aef3dad51af46bf0434687aedc1

SHA256
9019edf3dcef0c2f6b5a66f925710a94bf6533c2249966271bc3f4a750c7249d

SHA512
fca82ab0810a4380310f8f6ed4f1afdb1b4798215783a0895a732abcc52543d1ee1ba3f8b348a187fa33f3684c15809f56af557fa443295be972431f67477dbb

Download Submit
memory/2008-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2008-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2008-2-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/2008-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2008-8-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/2008-1-0x0000000000790000-0x0000000000890000-memory.dmp

Filesize
1024KB

Download
memory/4880-16-0x0000000000C70000-0x0000000000C85000-memory.dmp

Filesize
84KB

Download
memory/4880-14-0x0000000000C70000-0x0000000000C85000-memory.dmp

Filesize
84KB

Download
memory/4880-17-0x0000000000C70000-0x0000000000C85000-memory.dmp

Filesize
84KB

Download
memory/4888-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4888-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4888-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4888-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads