tofsee | 98ee15b4498267f85a08ef3f1d58fe63f8e6e5373e16790be65be707b0eb21e5

General

Target

2025-01-31_387afac071bccec0be9c8e49d461568d_mafia.exe
Size

12.5MB
MD5

387afac071bccec0be9c8e49d461568d
SHA1

eadafb725052b1eeb3fb3ca0da541c1c600bf663
SHA256

98ee15b4498267f85a08ef3f1d58fe63f8e6e5373e16790be65be707b0eb21e5
SHA512

38235ab069954d83ea6def71c6dbf7c7c45d9406b0eb302502dab05da2ff71951698206b60af52fa0f42e82f9d9f11b54a45cda63349f066eafec1c030c55401
SSDEEP

393216:8XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXR:a

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
4648	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\pnzfxhio\ImagePath = "C:\\Windows\\SysWOW64\\pnzfxhio\\hcgyozbz.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-1-5-21-2089655958-977706906-1981639424-1000\Control Panel\International\Geo\Nation	2025-01-31_387afac071bccec0be9c8e49d461568d_mafia.exe

Deletes itself 1 IoCs

pid	Process
4324	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4504	hcgyozbz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4504 set thread context of 4324	4504	hcgyozbz.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
4140	sc.exe
5028	sc.exe
5112	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	2025-01-31_387afac071bccec0be9c8e49d461568d_mafia.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	hcgyozbz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 968 wrote to memory of 2536	968	2025-01-31_387afac071bccec0be9c8e49d461568d_mafia.exe	86
PID 968 wrote to memory of 2536	968	2025-01-31_387afac071bccec0be9c8e49d461568d_mafia.exe	86
PID 968 wrote to memory of 2536	968	2025-01-31_387afac071bccec0be9c8e49d461568d_mafia.exe	86
PID 968 wrote to memory of 5056	968	2025-01-31_387afac071bccec0be9c8e49d461568d_mafia.exe	88
PID 968 wrote to memory of 5056	968	2025-01-31_387afac071bccec0be9c8e49d461568d_mafia.exe	88
PID 968 wrote to memory of 5056	968	2025-01-31_387afac071bccec0be9c8e49d461568d_mafia.exe	88
PID 968 wrote to memory of 5112	968	2025-01-31_387afac071bccec0be9c8e49d461568d_mafia.exe	90
PID 968 wrote to memory of 5112	968	2025-01-31_387afac071bccec0be9c8e49d461568d_mafia.exe	90
PID 968 wrote to memory of 5112	968	2025-01-31_387afac071bccec0be9c8e49d461568d_mafia.exe	90
PID 968 wrote to memory of 4140	968	2025-01-31_387afac071bccec0be9c8e49d461568d_mafia.exe	92
PID 968 wrote to memory of 4140	968	2025-01-31_387afac071bccec0be9c8e49d461568d_mafia.exe	92
PID 968 wrote to memory of 4140	968	2025-01-31_387afac071bccec0be9c8e49d461568d_mafia.exe	92
PID 968 wrote to memory of 5028	968	2025-01-31_387afac071bccec0be9c8e49d461568d_mafia.exe	94
PID 968 wrote to memory of 5028	968	2025-01-31_387afac071bccec0be9c8e49d461568d_mafia.exe	94
PID 968 wrote to memory of 5028	968	2025-01-31_387afac071bccec0be9c8e49d461568d_mafia.exe	94
PID 968 wrote to memory of 4648	968	2025-01-31_387afac071bccec0be9c8e49d461568d_mafia.exe	97
PID 968 wrote to memory of 4648	968	2025-01-31_387afac071bccec0be9c8e49d461568d_mafia.exe	97
PID 968 wrote to memory of 4648	968	2025-01-31_387afac071bccec0be9c8e49d461568d_mafia.exe	97
PID 4504 wrote to memory of 4324	4504	hcgyozbz.exe	98
PID 4504 wrote to memory of 4324	4504	hcgyozbz.exe	98
PID 4504 wrote to memory of 4324	4504	hcgyozbz.exe	98
PID 4504 wrote to memory of 4324	4504	hcgyozbz.exe	98
PID 4504 wrote to memory of 4324	4504	hcgyozbz.exe	98

C:\Users\Admin\AppData\Local\Temp\2025-01-31_387afac071bccec0be9c8e49d461568d_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-31_387afac071bccec0be9c8e49d461568d_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:968
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pnzfxhio\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2536
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hcgyozbz.exe" C:\Windows\SysWOW64\pnzfxhio\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5056
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create pnzfxhio binPath= "C:\Windows\SysWOW64\pnzfxhio\hcgyozbz.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_387afac071bccec0be9c8e49d461568d_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5112
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description pnzfxhio "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4140
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start pnzfxhio
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5028
- 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:4648

C:\Windows\SysWOW64\pnzfxhio\hcgyozbz.exe
C:\Windows\SysWOW64\pnzfxhio\hcgyozbz.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_387afac071bccec0be9c8e49d461568d_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4504
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4324

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\hcgyozbz.exe

Filesize
10.2MB

MD5
f4d803dca372e80c3b858d6e097324c7

SHA1
a0ac8f752fed3f1d95ba2444b96399e8d93e4123

SHA256
b0c34873a95e27355d9c2cb85ac574a9e9fc4ac12e1ec89cbdf322713c267317

SHA512
724733cc1c6a9bba4ad7fed6dfa8ae208254de904190ad49aa1dd3e5946e7adaa8755d3ff3de718380c617c2fe84c4cf2ee16530e01e9bed19d25102ee7de79a

Download Submit
memory/968-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/968-2-0x00000000005B0000-0x00000000005C3000-memory.dmp

Filesize
76KB

Download
memory/968-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/968-11-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/968-1-0x0000000000650000-0x0000000000750000-memory.dmp

Filesize
1024KB

Download
memory/968-12-0x00000000005B0000-0x00000000005C3000-memory.dmp

Filesize
76KB

Download
memory/4324-14-0x0000000000160000-0x0000000000175000-memory.dmp

Filesize
84KB

Download
memory/4324-17-0x0000000000160000-0x0000000000175000-memory.dmp

Filesize
84KB

Download
memory/4324-18-0x0000000000160000-0x0000000000175000-memory.dmp

Filesize
84KB

Download
memory/4324-21-0x0000000000160000-0x0000000000175000-memory.dmp

Filesize
84KB

Download
memory/4324-22-0x0000000000160000-0x0000000000175000-memory.dmp

Filesize
84KB

Download
memory/4504-10-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4504-20-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4504-8-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/4504-9-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads