tofsee | 7810708f33c355028fb29b32b57474d12daf826b803b471756cb6800f32b7436

General

Target

2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe
Size

10.4MB
MD5

3514d0875438dd5682cfe14dd6cd95ec
SHA1

b69b0f81ffb4d8684e770e80746249042cf7756f
SHA256

7810708f33c355028fb29b32b57474d12daf826b803b471756cb6800f32b7436
SHA512

0387238e6e8c713beb521bd5d58d724d0abfa59e6da4f63483759c0f1799fb362e5b002429d0fd7b201841b6c725c004c339e4086268031997d3c2388e92a762
SSDEEP

49152:1Vdrl/8HAzGCbGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGn:1Vdrl/9zG

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

Processes:

netsh.exe

pid	Process
4568	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\vropgzp\ImagePath = "C:\\Windows\\SysWOW64\\vropgzp\\srdzeoyl.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

Processes:

2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid	Process
3260	svchost.exe

Executes dropped EXE 1 IoCs

Processes:

srdzeoyl.exe

pid	Process
4888	srdzeoyl.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

srdzeoyl.exe

description	pid	Process	procid_target
PID 4888 set thread context of 3260	4888	srdzeoyl.exe	105

Launches sc.exe 3 IoCs

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

Processes:

sc.exesc.exesc.exe

pid	Process
3560	sc.exe
744	sc.exe
3480	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

Processes:

netsh.exe

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

Processes:

WerFault.exeWerFault.exe

pid	pid_target	Process	procid_target
3316	3916	WerFault.exe	83
4148	4888	WerFault.exe	97

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

Processes:

sc.exesc.exenetsh.exesrdzeoyl.exesvchost.exe2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.execmd.execmd.exesc.exe

description	ioc	Process
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	srdzeoyl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.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

Processes:

2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exesrdzeoyl.exe

description	pid	Process	procid_target
PID 3916 wrote to memory of 1176	3916	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	87
PID 3916 wrote to memory of 1176	3916	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	87
PID 3916 wrote to memory of 1176	3916	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	87
PID 3916 wrote to memory of 3292	3916	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	89
PID 3916 wrote to memory of 3292	3916	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	89
PID 3916 wrote to memory of 3292	3916	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	89
PID 3916 wrote to memory of 3560	3916	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	91
PID 3916 wrote to memory of 3560	3916	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	91
PID 3916 wrote to memory of 3560	3916	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	91
PID 3916 wrote to memory of 744	3916	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	93
PID 3916 wrote to memory of 744	3916	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	93
PID 3916 wrote to memory of 744	3916	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	93
PID 3916 wrote to memory of 3480	3916	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	95
PID 3916 wrote to memory of 3480	3916	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	95
PID 3916 wrote to memory of 3480	3916	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	95
PID 3916 wrote to memory of 4568	3916	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	98
PID 3916 wrote to memory of 4568	3916	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	98
PID 3916 wrote to memory of 4568	3916	2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe	98
PID 4888 wrote to memory of 3260	4888	srdzeoyl.exe	105
PID 4888 wrote to memory of 3260	4888	srdzeoyl.exe	105
PID 4888 wrote to memory of 3260	4888	srdzeoyl.exe	105
PID 4888 wrote to memory of 3260	4888	srdzeoyl.exe	105
PID 4888 wrote to memory of 3260	4888	srdzeoyl.exe	105

C:\Users\Admin\AppData\Local\Temp\2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3916
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vropgzp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1176
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\srdzeoyl.exe" C:\Windows\SysWOW64\vropgzp\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3292
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create vropgzp binPath= "C:\Windows\SysWOW64\vropgzp\srdzeoyl.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3560
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description vropgzp "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:744
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start vropgzp
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3480
- 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:4568
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3916 -s 1132
  2⤵
  - Program crash
  PID:3316

C:\Windows\SysWOW64\vropgzp\srdzeoyl.exe
C:\Windows\SysWOW64\vropgzp\srdzeoyl.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-11-03_3514d0875438dd5682cfe14dd6cd95ec_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:3260
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 512
  2⤵
  - Program crash
  PID:4148

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3916 -ip 3916
1⤵
PID:1720

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4888 -ip 4888
1⤵
PID:4340

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

Replay Monitor

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Downloads

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

Filesize
14.5MB

MD5
336c5e179b3fdd23f8b87b5fc34741fb

SHA1
e61aef999ec4fbb6c221f228babe4a3d07accfda

SHA256
6ff6b6656d34fd5d228d1f1d16d1a8eb53fdc7c95bbcd17a6ae2e91ecd7756b3

SHA512
81a85c8a239af69b966ac50e7fb407ea838a1a002f39dfde93d5e0089629a8e94e87f2ee6831baa2ffc868e354975a014bed72fc6156cb6550c00066d93db4ce

Download Submit
memory/3260-14-0x0000000000600000-0x0000000000615000-memory.dmp

Filesize
84KB

Download
memory/3260-17-0x0000000000600000-0x0000000000615000-memory.dmp

Filesize
84KB

Download
memory/3260-16-0x0000000000600000-0x0000000000615000-memory.dmp

Filesize
84KB

Download
memory/3916-8-0x00000000006C0000-0x00000000006D3000-memory.dmp

Filesize
76KB

Download
memory/3916-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3916-1-0x00000000006E0000-0x00000000007E0000-memory.dmp

Filesize
1024KB

Download
memory/3916-7-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/3916-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3916-2-0x00000000006C0000-0x00000000006D3000-memory.dmp

Filesize
76KB

Download
memory/4888-11-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/4888-13-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/4888-12-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download
memory/4888-19-0x0000000000400000-0x0000000000518000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads