tofsee | 47ed682799d604e6deb9627801d88f1d6053eb605b2c745f0b1ff851d2611213

General

Target

2025-02-09_3012ce53c8dccc9e9643ffa104f753c7_mafia.exe
Size

15.0MB
MD5

3012ce53c8dccc9e9643ffa104f753c7
SHA1

6a3c73bf9d023cb2fe1ad820ffe2edfe6f07dd15
SHA256

47ed682799d604e6deb9627801d88f1d6053eb605b2c745f0b1ff851d2611213
SHA512

aa2f1f06b3dcb5b2fefa6f4985b0ce92dc188658893989cf7ba05828cb5b7197f3c04c77a851b844f18d734edc3114d753ca85f50b48cd380eda42e8bab7b4f8
SSDEEP

393216:GXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX5:S

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
26	220	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
2068	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\mvsgvmbk\ImagePath = "C:\\Windows\\SysWOW64\\mvsgvmbk\\ofbizycg.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-1-5-21-3932017190-1449707826-1445630-1000\Control Panel\International\Geo\Nation	2025-02-09_3012ce53c8dccc9e9643ffa104f753c7_mafia.exe

Deletes itself 1 IoCs

pid	Process
3104	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
5008	ofbizycg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5008 set thread context of 3104	5008	ofbizycg.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
3428	sc.exe
3180	sc.exe
3384	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 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	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	2025-02-09_3012ce53c8dccc9e9643ffa104f753c7_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	ofbizycg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.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
2404	MicrosoftEdgeUpdate.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4680 wrote to memory of 3608	4680	2025-02-09_3012ce53c8dccc9e9643ffa104f753c7_mafia.exe	91
PID 4680 wrote to memory of 3608	4680	2025-02-09_3012ce53c8dccc9e9643ffa104f753c7_mafia.exe	91
PID 4680 wrote to memory of 3608	4680	2025-02-09_3012ce53c8dccc9e9643ffa104f753c7_mafia.exe	91
PID 4680 wrote to memory of 4936	4680	2025-02-09_3012ce53c8dccc9e9643ffa104f753c7_mafia.exe	93
PID 4680 wrote to memory of 4936	4680	2025-02-09_3012ce53c8dccc9e9643ffa104f753c7_mafia.exe	93
PID 4680 wrote to memory of 4936	4680	2025-02-09_3012ce53c8dccc9e9643ffa104f753c7_mafia.exe	93
PID 4680 wrote to memory of 3428	4680	2025-02-09_3012ce53c8dccc9e9643ffa104f753c7_mafia.exe	95
PID 4680 wrote to memory of 3428	4680	2025-02-09_3012ce53c8dccc9e9643ffa104f753c7_mafia.exe	95
PID 4680 wrote to memory of 3428	4680	2025-02-09_3012ce53c8dccc9e9643ffa104f753c7_mafia.exe	95
PID 4680 wrote to memory of 3180	4680	2025-02-09_3012ce53c8dccc9e9643ffa104f753c7_mafia.exe	97
PID 4680 wrote to memory of 3180	4680	2025-02-09_3012ce53c8dccc9e9643ffa104f753c7_mafia.exe	97
PID 4680 wrote to memory of 3180	4680	2025-02-09_3012ce53c8dccc9e9643ffa104f753c7_mafia.exe	97
PID 4680 wrote to memory of 3384	4680	2025-02-09_3012ce53c8dccc9e9643ffa104f753c7_mafia.exe	99
PID 4680 wrote to memory of 3384	4680	2025-02-09_3012ce53c8dccc9e9643ffa104f753c7_mafia.exe	99
PID 4680 wrote to memory of 3384	4680	2025-02-09_3012ce53c8dccc9e9643ffa104f753c7_mafia.exe	99
PID 5008 wrote to memory of 3104	5008	ofbizycg.exe	102
PID 5008 wrote to memory of 3104	5008	ofbizycg.exe	102
PID 5008 wrote to memory of 3104	5008	ofbizycg.exe	102
PID 5008 wrote to memory of 3104	5008	ofbizycg.exe	102
PID 5008 wrote to memory of 3104	5008	ofbizycg.exe	102
PID 4680 wrote to memory of 2068	4680	2025-02-09_3012ce53c8dccc9e9643ffa104f753c7_mafia.exe	103
PID 4680 wrote to memory of 2068	4680	2025-02-09_3012ce53c8dccc9e9643ffa104f753c7_mafia.exe	103
PID 4680 wrote to memory of 2068	4680	2025-02-09_3012ce53c8dccc9e9643ffa104f753c7_mafia.exe	103

C:\Users\Admin\AppData\Local\Temp\2025-02-09_3012ce53c8dccc9e9643ffa104f753c7_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-09_3012ce53c8dccc9e9643ffa104f753c7_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4680
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mvsgvmbk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3608
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ofbizycg.exe" C:\Windows\SysWOW64\mvsgvmbk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4936
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create mvsgvmbk binPath= "C:\Windows\SysWOW64\mvsgvmbk\ofbizycg.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-09_3012ce53c8dccc9e9643ffa104f753c7_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3428
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description mvsgvmbk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3180
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start mvsgvmbk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3384
- 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:2068

C:\Windows\SysWOW64\mvsgvmbk\ofbizycg.exe
C:\Windows\SysWOW64\mvsgvmbk\ofbizycg.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-09_3012ce53c8dccc9e9643ffa104f753c7_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5008
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3104

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDY0MzMiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODc1OTU2NTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MDM1Nzc1NzAzIi8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:2404

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

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Downloads

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

Filesize
14.1MB

MD5
6768a24cd99a4ef4a89cae0c2bbb4f10

SHA1
15ae184e90d8f3e0445f2370fc912b1d0c5cc65c

SHA256
70761fb68cc1918c96030d040eb1a76131cfa763e31cd2ac420a43dfb5404bb7

SHA512
f53bafe6f59d44b526d661d349ca992c8220eaf6a8f857b3553ca5f4e02acc611143f8ab0c025afc8c4168a2cb5282dfcb680b546df98d374af5dd517a33b15d

Download Submit
memory/3104-11-0x0000000000AF0000-0x0000000000B05000-memory.dmp

Filesize
84KB

Download
memory/3104-23-0x0000000000AF0000-0x0000000000B05000-memory.dmp

Filesize
84KB

Download
memory/3104-21-0x0000000000AF0000-0x0000000000B05000-memory.dmp

Filesize
84KB

Download
memory/3104-16-0x0000000000AF0000-0x0000000000B05000-memory.dmp

Filesize
84KB

Download
memory/3104-20-0x0000000000AF0000-0x0000000000B05000-memory.dmp

Filesize
84KB

Download
memory/4680-17-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4680-18-0x00000000004A0000-0x00000000004B3000-memory.dmp

Filesize
76KB

Download
memory/4680-1-0x00000000004C0000-0x00000000005C0000-memory.dmp

Filesize
1024KB

Download
memory/4680-19-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4680-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4680-2-0x00000000004A0000-0x00000000004B3000-memory.dmp

Filesize
76KB

Download
memory/5008-10-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/5008-9-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/5008-8-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/5008-14-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads