tofsee | 88363bf0c273a65c292dc131c24538ffa519d2ba016d287c4d9be0d921a4d949

General

Target

2025-01-28_97f05b514a867f29502c66a18573b6e1_mafia.exe
Size

12.7MB
MD5

97f05b514a867f29502c66a18573b6e1
SHA1

e3ad4e5ebb38ef6c1808e33ba73a8f94593748c6
SHA256

88363bf0c273a65c292dc131c24538ffa519d2ba016d287c4d9be0d921a4d949
SHA512

d4e00ff51b2dbeed0d3b9890d41c0ada4557488375f52484d5319264334c63f55d150f80383593f5d68ca076a30d92cf7b1a1c8f6e118f2c08e742f21d510a50
SSDEEP

24576:GEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZR:/fotj

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
4152	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\gmbxexvz\ImagePath = "C:\\Windows\\SysWOW64\\gmbxexvz\\lniohue.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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	2025-01-28_97f05b514a867f29502c66a18573b6e1_mafia.exe

Deletes itself 1 IoCs

pid	Process
4364	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1644	lniohue.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1644 set thread context of 4364	1644	lniohue.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
4468	sc.exe
432	sc.exe
4188	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
4904	3596	WerFault.exe	81
3476	1644	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lniohue.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-28_97f05b514a867f29502c66a18573b6e1_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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3596 wrote to memory of 2848	3596	2025-01-28_97f05b514a867f29502c66a18573b6e1_mafia.exe	82
PID 3596 wrote to memory of 2848	3596	2025-01-28_97f05b514a867f29502c66a18573b6e1_mafia.exe	82
PID 3596 wrote to memory of 2848	3596	2025-01-28_97f05b514a867f29502c66a18573b6e1_mafia.exe	82
PID 3596 wrote to memory of 2400	3596	2025-01-28_97f05b514a867f29502c66a18573b6e1_mafia.exe	84
PID 3596 wrote to memory of 2400	3596	2025-01-28_97f05b514a867f29502c66a18573b6e1_mafia.exe	84
PID 3596 wrote to memory of 2400	3596	2025-01-28_97f05b514a867f29502c66a18573b6e1_mafia.exe	84
PID 3596 wrote to memory of 4468	3596	2025-01-28_97f05b514a867f29502c66a18573b6e1_mafia.exe	86
PID 3596 wrote to memory of 4468	3596	2025-01-28_97f05b514a867f29502c66a18573b6e1_mafia.exe	86
PID 3596 wrote to memory of 4468	3596	2025-01-28_97f05b514a867f29502c66a18573b6e1_mafia.exe	86
PID 3596 wrote to memory of 432	3596	2025-01-28_97f05b514a867f29502c66a18573b6e1_mafia.exe	88
PID 3596 wrote to memory of 432	3596	2025-01-28_97f05b514a867f29502c66a18573b6e1_mafia.exe	88
PID 3596 wrote to memory of 432	3596	2025-01-28_97f05b514a867f29502c66a18573b6e1_mafia.exe	88
PID 3596 wrote to memory of 4188	3596	2025-01-28_97f05b514a867f29502c66a18573b6e1_mafia.exe	90
PID 3596 wrote to memory of 4188	3596	2025-01-28_97f05b514a867f29502c66a18573b6e1_mafia.exe	90
PID 3596 wrote to memory of 4188	3596	2025-01-28_97f05b514a867f29502c66a18573b6e1_mafia.exe	90
PID 3596 wrote to memory of 4152	3596	2025-01-28_97f05b514a867f29502c66a18573b6e1_mafia.exe	93
PID 3596 wrote to memory of 4152	3596	2025-01-28_97f05b514a867f29502c66a18573b6e1_mafia.exe	93
PID 3596 wrote to memory of 4152	3596	2025-01-28_97f05b514a867f29502c66a18573b6e1_mafia.exe	93
PID 1644 wrote to memory of 4364	1644	lniohue.exe	98
PID 1644 wrote to memory of 4364	1644	lniohue.exe	98
PID 1644 wrote to memory of 4364	1644	lniohue.exe	98
PID 1644 wrote to memory of 4364	1644	lniohue.exe	98
PID 1644 wrote to memory of 4364	1644	lniohue.exe	98

C:\Users\Admin\AppData\Local\Temp\2025-01-28_97f05b514a867f29502c66a18573b6e1_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-28_97f05b514a867f29502c66a18573b6e1_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3596
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gmbxexvz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2848
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\lniohue.exe" C:\Windows\SysWOW64\gmbxexvz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2400
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gmbxexvz binPath= "C:\Windows\SysWOW64\gmbxexvz\lniohue.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-28_97f05b514a867f29502c66a18573b6e1_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4468
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gmbxexvz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:432
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gmbxexvz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4188
- 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:4152
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3596 -s 1044
  2⤵
  - Program crash
  PID:4904

C:\Windows\SysWOW64\gmbxexvz\lniohue.exe
C:\Windows\SysWOW64\gmbxexvz\lniohue.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-28_97f05b514a867f29502c66a18573b6e1_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1644
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4364
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1644 -s 560
  2⤵
  - Program crash
  PID:3476

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3596 -ip 3596
1⤵
PID:244

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 1644 -ip 1644
1⤵
PID:428

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\lniohue.exe

Filesize
14.8MB

MD5
21888bbd791fef8ae20f6c0e3ca52b5e

SHA1
01e1a242675ede8bec2cf8afff4952d3cd379877

SHA256
8ed7880b30ef554dec0564d767e098085a793e80dddec91d88646a88dab00a8e

SHA512
a608fd1b0b8d2d644a4cff3860c2e9c2550f25563d7502fbc1497c74736e16e2832516700ad970fc238711baccde3222202866314d7d70d9f45e49538cf69a26

Download Submit
memory/1644-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1644-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1644-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1644-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3596-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3596-2-0x0000000000890000-0x00000000008A3000-memory.dmp

Filesize
76KB

Download
memory/3596-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3596-8-0x0000000000890000-0x00000000008A3000-memory.dmp

Filesize
76KB

Download
memory/3596-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3596-1-0x0000000000690000-0x0000000000790000-memory.dmp

Filesize
1024KB

Download
memory/4364-14-0x00000000012A0000-0x00000000012B5000-memory.dmp

Filesize
84KB

Download
memory/4364-16-0x00000000012A0000-0x00000000012B5000-memory.dmp

Filesize
84KB

Download
memory/4364-17-0x00000000012A0000-0x00000000012B5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads