tofsee | c0b7e00532c41afb64dd5254952b61511a945eb5d0ed492352919bc41397f4f5

General

Target

2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe
Size

11.4MB
MD5

6c5e452df29b5a756d22f22a8250e379
SHA1

2220bf75ba0c6eb8a2ae4740c8b63bdd04a2d8b8
SHA256

c0b7e00532c41afb64dd5254952b61511a945eb5d0ed492352919bc41397f4f5
SHA512

c563d976efa75b53187b2649bc3166f756b4d383cc5364c25e7b86a5d643879f7089c0eddb46bed2085f668c335f1c076646455337cb357aea534ffdf292977d
SSDEEP

3072:ZLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:cOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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
4492	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\rdsybjvh\ImagePath = "C:\\Windows\\SysWOW64\\rdsybjvh\\awoolazn.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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe

Deletes itself 1 IoCs

pid	Process
3212	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1968	awoolazn.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1968 set thread context of 3212	1968	awoolazn.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
2752	sc.exe
3684	sc.exe
3640	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3148	4260	WerFault.exe	81
1040	1968	WerFault.exe	92

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	awoolazn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-29_6c5e452df29b5a756d22f22a8250e379_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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4260 wrote to memory of 2796	4260	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	82
PID 4260 wrote to memory of 2796	4260	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	82
PID 4260 wrote to memory of 2796	4260	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	82
PID 4260 wrote to memory of 2204	4260	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	84
PID 4260 wrote to memory of 2204	4260	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	84
PID 4260 wrote to memory of 2204	4260	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	84
PID 4260 wrote to memory of 2752	4260	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	86
PID 4260 wrote to memory of 2752	4260	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	86
PID 4260 wrote to memory of 2752	4260	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	86
PID 4260 wrote to memory of 3684	4260	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	88
PID 4260 wrote to memory of 3684	4260	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	88
PID 4260 wrote to memory of 3684	4260	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	88
PID 4260 wrote to memory of 3640	4260	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	90
PID 4260 wrote to memory of 3640	4260	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	90
PID 4260 wrote to memory of 3640	4260	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	90
PID 4260 wrote to memory of 4492	4260	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	93
PID 4260 wrote to memory of 4492	4260	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	93
PID 4260 wrote to memory of 4492	4260	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	93
PID 1968 wrote to memory of 3212	1968	awoolazn.exe	98
PID 1968 wrote to memory of 3212	1968	awoolazn.exe	98
PID 1968 wrote to memory of 3212	1968	awoolazn.exe	98
PID 1968 wrote to memory of 3212	1968	awoolazn.exe	98
PID 1968 wrote to memory of 3212	1968	awoolazn.exe	98

C:\Users\Admin\AppData\Local\Temp\2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4260
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rdsybjvh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2796
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\awoolazn.exe" C:\Windows\SysWOW64\rdsybjvh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2204
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rdsybjvh binPath= "C:\Windows\SysWOW64\rdsybjvh\awoolazn.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2752
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rdsybjvh "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3684
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rdsybjvh
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3640
- 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:4492
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4260 -s 1308
  2⤵
  - Program crash
  PID:3148

C:\Windows\SysWOW64\rdsybjvh\awoolazn.exe
C:\Windows\SysWOW64\rdsybjvh\awoolazn.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1968
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3212
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1968 -s 508
  2⤵
  - Program crash
  PID:1040

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4260 -ip 4260
1⤵
PID:3752

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 1968 -ip 1968
1⤵
PID:4256

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\awoolazn.exe

Filesize
12.3MB

MD5
760143e4bc5237619e69f6dc266190b2

SHA1
9373c398ead577e324e7062e6d85544d77fb451e

SHA256
924c9740bddc4774fb512bee6e62ddeb3279b2f271723d2ce3cf7a6730212a90

SHA512
3260e0818bd2f5ca0e2950e1d99f74c415c6c340581526584bd370c5e75e9af19786471fd6b52238f7bce7ce0a4476414d9fdffe86773ac7b1806687d841ef4f

Download Submit
memory/1968-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1968-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1968-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1968-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3212-14-0x0000000000E00000-0x0000000000E15000-memory.dmp

Filesize
84KB

Download
memory/3212-16-0x0000000000E00000-0x0000000000E15000-memory.dmp

Filesize
84KB

Download
memory/3212-17-0x0000000000E00000-0x0000000000E15000-memory.dmp

Filesize
84KB

Download
memory/4260-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4260-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4260-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4260-8-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4260-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4260-1-0x00000000005D0000-0x00000000006D0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads