tofsee | 49a033d771191012c9443e4f3114df4481dc58a99c1bc0de52a6c6d4254ec485

General

Target

2024-12-25_f5ef0966ceb9709a7d695f7979474cf9_mafia.exe
Size

14.0MB
MD5

f5ef0966ceb9709a7d695f7979474cf9
SHA1

74b0587f3eaa55eb9cfa5739ed4dabf9037e1677
SHA256

49a033d771191012c9443e4f3114df4481dc58a99c1bc0de52a6c6d4254ec485
SHA512

afabe7617a87900501488b861247525d0dc80022215dd1311ac18a430f95d4a5dd6f7fbfddc1615230e4948324e0d1d9c7d678de5ed61cfb09a085af52fbd9c1
SSDEEP

3072:oLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:lOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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

pid	Process
3700	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\mjoqnat\ImagePath = "C:\\Windows\\SysWOW64\\mjoqnat\\eclmvrgc.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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	2024-12-25_f5ef0966ceb9709a7d695f7979474cf9_mafia.exe

Deletes itself 1 IoCs

pid	Process
2636	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1160	eclmvrgc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1160 set thread context of 2636	1160	eclmvrgc.exe	107

Launches sc.exe 3 IoCs

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

pid	Process
2172	sc.exe
1200	sc.exe
3496	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
5116	4884	WerFault.exe	82
4700	1160	WerFault.exe	94

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	2024-12-25_f5ef0966ceb9709a7d695f7979474cf9_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eclmvrgc.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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4884 wrote to memory of 836	4884	2024-12-25_f5ef0966ceb9709a7d695f7979474cf9_mafia.exe	84
PID 4884 wrote to memory of 836	4884	2024-12-25_f5ef0966ceb9709a7d695f7979474cf9_mafia.exe	84
PID 4884 wrote to memory of 836	4884	2024-12-25_f5ef0966ceb9709a7d695f7979474cf9_mafia.exe	84
PID 4884 wrote to memory of 2872	4884	2024-12-25_f5ef0966ceb9709a7d695f7979474cf9_mafia.exe	86
PID 4884 wrote to memory of 2872	4884	2024-12-25_f5ef0966ceb9709a7d695f7979474cf9_mafia.exe	86
PID 4884 wrote to memory of 2872	4884	2024-12-25_f5ef0966ceb9709a7d695f7979474cf9_mafia.exe	86
PID 4884 wrote to memory of 2172	4884	2024-12-25_f5ef0966ceb9709a7d695f7979474cf9_mafia.exe	88
PID 4884 wrote to memory of 2172	4884	2024-12-25_f5ef0966ceb9709a7d695f7979474cf9_mafia.exe	88
PID 4884 wrote to memory of 2172	4884	2024-12-25_f5ef0966ceb9709a7d695f7979474cf9_mafia.exe	88
PID 4884 wrote to memory of 1200	4884	2024-12-25_f5ef0966ceb9709a7d695f7979474cf9_mafia.exe	90
PID 4884 wrote to memory of 1200	4884	2024-12-25_f5ef0966ceb9709a7d695f7979474cf9_mafia.exe	90
PID 4884 wrote to memory of 1200	4884	2024-12-25_f5ef0966ceb9709a7d695f7979474cf9_mafia.exe	90
PID 4884 wrote to memory of 3496	4884	2024-12-25_f5ef0966ceb9709a7d695f7979474cf9_mafia.exe	92
PID 4884 wrote to memory of 3496	4884	2024-12-25_f5ef0966ceb9709a7d695f7979474cf9_mafia.exe	92
PID 4884 wrote to memory of 3496	4884	2024-12-25_f5ef0966ceb9709a7d695f7979474cf9_mafia.exe	92
PID 4884 wrote to memory of 3700	4884	2024-12-25_f5ef0966ceb9709a7d695f7979474cf9_mafia.exe	95
PID 4884 wrote to memory of 3700	4884	2024-12-25_f5ef0966ceb9709a7d695f7979474cf9_mafia.exe	95
PID 4884 wrote to memory of 3700	4884	2024-12-25_f5ef0966ceb9709a7d695f7979474cf9_mafia.exe	95
PID 1160 wrote to memory of 2636	1160	eclmvrgc.exe	107
PID 1160 wrote to memory of 2636	1160	eclmvrgc.exe	107
PID 1160 wrote to memory of 2636	1160	eclmvrgc.exe	107
PID 1160 wrote to memory of 2636	1160	eclmvrgc.exe	107
PID 1160 wrote to memory of 2636	1160	eclmvrgc.exe	107

C:\Users\Admin\AppData\Local\Temp\2024-12-25_f5ef0966ceb9709a7d695f7979474cf9_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-25_f5ef0966ceb9709a7d695f7979474cf9_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4884
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mjoqnat\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:836
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\eclmvrgc.exe" C:\Windows\SysWOW64\mjoqnat\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2872
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create mjoqnat binPath= "C:\Windows\SysWOW64\mjoqnat\eclmvrgc.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-12-25_f5ef0966ceb9709a7d695f7979474cf9_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2172
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description mjoqnat "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1200
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start mjoqnat
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3496
- 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:3700
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4884 -s 1200
  2⤵
  - Program crash
  PID:5116

C:\Windows\SysWOW64\mjoqnat\eclmvrgc.exe
C:\Windows\SysWOW64\mjoqnat\eclmvrgc.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-12-25_f5ef0966ceb9709a7d695f7979474cf9_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1160
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2636
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1160 -s 508
  2⤵
  - Program crash
  PID:4700

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4884 -ip 4884
1⤵
PID:612

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 1160 -ip 1160
1⤵
PID:3596

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\eclmvrgc.exe

Filesize
11.7MB

MD5
125436e3b5b086c903ce7a9324def6e7

SHA1
d86a8b21942a915b68a9cc9c4098038f7b10479f

SHA256
b16c34dd70bfba03ae90d6f0909ff879752b185697a4bc7c2994ca99f3c1e9a6

SHA512
346d0dd7b39b51bdf17eccfc097ba7d6d9302428dac2d92ba3a5654211990293edacc7088b381712e28480bc2e807f3d47b1fe28da6d8abbea06c7cfd4d47900

Download Submit
memory/1160-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1160-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1160-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1160-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2636-14-0x0000000000160000-0x0000000000175000-memory.dmp

Filesize
84KB

Download
memory/2636-16-0x0000000000160000-0x0000000000175000-memory.dmp

Filesize
84KB

Download
memory/2636-17-0x0000000000160000-0x0000000000175000-memory.dmp

Filesize
84KB

Download
memory/4884-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4884-1-0x0000000000700000-0x0000000000800000-memory.dmp

Filesize
1024KB

Download
memory/4884-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4884-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4884-8-0x0000000000570000-0x0000000000583000-memory.dmp

Filesize
76KB

Download
memory/4884-2-0x0000000000570000-0x0000000000583000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads