tofsee | cf04fcade0de67cd50b38c82d12af9e044fc4fac1f563d9249f0a30583c0142a

General

Target

2025-02-02_ffb1c128dd6c9b76f12d313ac34055a7_mafia.exe
Size

11.2MB
MD5

ffb1c128dd6c9b76f12d313ac34055a7
SHA1

ff5ff74d8c39aa23ea782b559a3a6f561603445d
SHA256

cf04fcade0de67cd50b38c82d12af9e044fc4fac1f563d9249f0a30583c0142a
SHA512

1a897932c8538b96a0d9519600b026a962989ba8c88f55997c7885dd7c54fdc1264027ebff6b908796faa86e2fb1f54c6dbc21756f3a62abd98af077a44a2171
SSDEEP

24576:rEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZj:4fot

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
1632	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\tacmhksq\ImagePath = "C:\\Windows\\SysWOW64\\tacmhksq\\namjcpue.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-1-5-21-4174397412-4125106315-2776226590-1000\Control Panel\International\Geo\Nation	2025-02-02_ffb1c128dd6c9b76f12d313ac34055a7_mafia.exe

Deletes itself 1 IoCs

pid	Process
4128	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3656	namjcpue.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3656 set thread context of 4128	3656	namjcpue.exe	105

Launches sc.exe 3 IoCs

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

pid	Process
4444	sc.exe
4708	sc.exe
3936	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2680	3196	WerFault.exe	82
4476	3656	WerFault.exe	99

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	svchost.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	namjcpue.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-02_ffb1c128dd6c9b76f12d313ac34055a7_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3196 wrote to memory of 1020	3196	2025-02-02_ffb1c128dd6c9b76f12d313ac34055a7_mafia.exe	89
PID 3196 wrote to memory of 1020	3196	2025-02-02_ffb1c128dd6c9b76f12d313ac34055a7_mafia.exe	89
PID 3196 wrote to memory of 1020	3196	2025-02-02_ffb1c128dd6c9b76f12d313ac34055a7_mafia.exe	89
PID 3196 wrote to memory of 2496	3196	2025-02-02_ffb1c128dd6c9b76f12d313ac34055a7_mafia.exe	91
PID 3196 wrote to memory of 2496	3196	2025-02-02_ffb1c128dd6c9b76f12d313ac34055a7_mafia.exe	91
PID 3196 wrote to memory of 2496	3196	2025-02-02_ffb1c128dd6c9b76f12d313ac34055a7_mafia.exe	91
PID 3196 wrote to memory of 4444	3196	2025-02-02_ffb1c128dd6c9b76f12d313ac34055a7_mafia.exe	93
PID 3196 wrote to memory of 4444	3196	2025-02-02_ffb1c128dd6c9b76f12d313ac34055a7_mafia.exe	93
PID 3196 wrote to memory of 4444	3196	2025-02-02_ffb1c128dd6c9b76f12d313ac34055a7_mafia.exe	93
PID 3196 wrote to memory of 4708	3196	2025-02-02_ffb1c128dd6c9b76f12d313ac34055a7_mafia.exe	95
PID 3196 wrote to memory of 4708	3196	2025-02-02_ffb1c128dd6c9b76f12d313ac34055a7_mafia.exe	95
PID 3196 wrote to memory of 4708	3196	2025-02-02_ffb1c128dd6c9b76f12d313ac34055a7_mafia.exe	95
PID 3196 wrote to memory of 3936	3196	2025-02-02_ffb1c128dd6c9b76f12d313ac34055a7_mafia.exe	97
PID 3196 wrote to memory of 3936	3196	2025-02-02_ffb1c128dd6c9b76f12d313ac34055a7_mafia.exe	97
PID 3196 wrote to memory of 3936	3196	2025-02-02_ffb1c128dd6c9b76f12d313ac34055a7_mafia.exe	97
PID 3196 wrote to memory of 1632	3196	2025-02-02_ffb1c128dd6c9b76f12d313ac34055a7_mafia.exe	100
PID 3196 wrote to memory of 1632	3196	2025-02-02_ffb1c128dd6c9b76f12d313ac34055a7_mafia.exe	100
PID 3196 wrote to memory of 1632	3196	2025-02-02_ffb1c128dd6c9b76f12d313ac34055a7_mafia.exe	100
PID 3656 wrote to memory of 4128	3656	namjcpue.exe	105
PID 3656 wrote to memory of 4128	3656	namjcpue.exe	105
PID 3656 wrote to memory of 4128	3656	namjcpue.exe	105
PID 3656 wrote to memory of 4128	3656	namjcpue.exe	105
PID 3656 wrote to memory of 4128	3656	namjcpue.exe	105

C:\Users\Admin\AppData\Local\Temp\2025-02-02_ffb1c128dd6c9b76f12d313ac34055a7_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-02_ffb1c128dd6c9b76f12d313ac34055a7_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3196
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tacmhksq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1020
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\namjcpue.exe" C:\Windows\SysWOW64\tacmhksq\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2496
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tacmhksq binPath= "C:\Windows\SysWOW64\tacmhksq\namjcpue.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_ffb1c128dd6c9b76f12d313ac34055a7_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4444
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tacmhksq "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4708
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tacmhksq
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3936
- 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:1632
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3196 -s 1028
  2⤵
  - Program crash
  PID:2680

C:\Windows\SysWOW64\tacmhksq\namjcpue.exe
C:\Windows\SysWOW64\tacmhksq\namjcpue.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_ffb1c128dd6c9b76f12d313ac34055a7_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3656
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4128
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3656 -s 508
  2⤵
  - Program crash
  PID:4476

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3196 -ip 3196
1⤵
PID:2036

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 3656 -ip 3656
1⤵
PID:2892

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\namjcpue.exe

Filesize
10.2MB

MD5
84b97e159f232757b674b366eebfb1f5

SHA1
8b6197ffab47704825e3c31e2edf6efc77e4a049

SHA256
176bfd9a5916516fed12fb603da693d02d002bc7a621437f3fc801b936fee25b

SHA512
af31756730460090977929021078331073ecb28b8462fbf13ed6f4020d9839cdbf629718ffde133efebb9cadd9a98c3fd9cc4a16a78d2e4b413f3be8b61498ff

Download Submit
memory/3196-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3196-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3196-2-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/3196-8-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/3196-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3196-1-0x0000000000780000-0x0000000000880000-memory.dmp

Filesize
1024KB

Download
memory/3656-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3656-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3656-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3656-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4128-14-0x0000000000930000-0x0000000000945000-memory.dmp

Filesize
84KB

Download
memory/4128-16-0x0000000000930000-0x0000000000945000-memory.dmp

Filesize
84KB

Download
memory/4128-17-0x0000000000930000-0x0000000000945000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads