tofsee | 1afd64976f77dac3e5ea4be9921ee865d7ed13fabb7a1c9294b330f37b920554

General

Target

2025-01-21_9a14a0443a32965ebd6da88df49e252d_mafia.exe
Size

14.0MB
MD5

9a14a0443a32965ebd6da88df49e252d
SHA1

711984700b258d24d91a47ca17e36ef2cda4c4e3
SHA256

1afd64976f77dac3e5ea4be9921ee865d7ed13fabb7a1c9294b330f37b920554
SHA512

032eda656029d5912e9ffb03b4922c85395a28ddafcc3f5d0b3071ec58029cf02536dddc897f3ed7e0e39f76efc1a4345d4792a20c17d2b78e75e94b82851a3a
SSDEEP

49152:0qE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPn:0qtYc3

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
2696	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\fmqnuzbb\ImagePath = "C:\\Windows\\SysWOW64\\fmqnuzbb\\keevgpgi.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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	2025-01-21_9a14a0443a32965ebd6da88df49e252d_mafia.exe

Deletes itself 1 IoCs

pid	Process
236	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4336	keevgpgi.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4336 set thread context of 236	4336	keevgpgi.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
3848	sc.exe
4008	sc.exe
3912	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
4512	2220	WerFault.exe	84
2920	4336	WerFault.exe	96

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	2025-01-21_9a14a0443a32965ebd6da88df49e252d_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	keevgpgi.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2220 wrote to memory of 364	2220	2025-01-21_9a14a0443a32965ebd6da88df49e252d_mafia.exe	85
PID 2220 wrote to memory of 364	2220	2025-01-21_9a14a0443a32965ebd6da88df49e252d_mafia.exe	85
PID 2220 wrote to memory of 364	2220	2025-01-21_9a14a0443a32965ebd6da88df49e252d_mafia.exe	85
PID 2220 wrote to memory of 4660	2220	2025-01-21_9a14a0443a32965ebd6da88df49e252d_mafia.exe	87
PID 2220 wrote to memory of 4660	2220	2025-01-21_9a14a0443a32965ebd6da88df49e252d_mafia.exe	87
PID 2220 wrote to memory of 4660	2220	2025-01-21_9a14a0443a32965ebd6da88df49e252d_mafia.exe	87
PID 2220 wrote to memory of 3848	2220	2025-01-21_9a14a0443a32965ebd6da88df49e252d_mafia.exe	89
PID 2220 wrote to memory of 3848	2220	2025-01-21_9a14a0443a32965ebd6da88df49e252d_mafia.exe	89
PID 2220 wrote to memory of 3848	2220	2025-01-21_9a14a0443a32965ebd6da88df49e252d_mafia.exe	89
PID 2220 wrote to memory of 4008	2220	2025-01-21_9a14a0443a32965ebd6da88df49e252d_mafia.exe	91
PID 2220 wrote to memory of 4008	2220	2025-01-21_9a14a0443a32965ebd6da88df49e252d_mafia.exe	91
PID 2220 wrote to memory of 4008	2220	2025-01-21_9a14a0443a32965ebd6da88df49e252d_mafia.exe	91
PID 2220 wrote to memory of 3912	2220	2025-01-21_9a14a0443a32965ebd6da88df49e252d_mafia.exe	94
PID 2220 wrote to memory of 3912	2220	2025-01-21_9a14a0443a32965ebd6da88df49e252d_mafia.exe	94
PID 2220 wrote to memory of 3912	2220	2025-01-21_9a14a0443a32965ebd6da88df49e252d_mafia.exe	94
PID 4336 wrote to memory of 236	4336	keevgpgi.exe	97
PID 4336 wrote to memory of 236	4336	keevgpgi.exe	97
PID 4336 wrote to memory of 236	4336	keevgpgi.exe	97
PID 4336 wrote to memory of 236	4336	keevgpgi.exe	97
PID 4336 wrote to memory of 236	4336	keevgpgi.exe	97
PID 2220 wrote to memory of 2696	2220	2025-01-21_9a14a0443a32965ebd6da88df49e252d_mafia.exe	99
PID 2220 wrote to memory of 2696	2220	2025-01-21_9a14a0443a32965ebd6da88df49e252d_mafia.exe	99
PID 2220 wrote to memory of 2696	2220	2025-01-21_9a14a0443a32965ebd6da88df49e252d_mafia.exe	99

C:\Users\Admin\AppData\Local\Temp\2025-01-21_9a14a0443a32965ebd6da88df49e252d_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-21_9a14a0443a32965ebd6da88df49e252d_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2220
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fmqnuzbb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:364
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\keevgpgi.exe" C:\Windows\SysWOW64\fmqnuzbb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4660
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fmqnuzbb binPath= "C:\Windows\SysWOW64\fmqnuzbb\keevgpgi.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-21_9a14a0443a32965ebd6da88df49e252d_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3848
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fmqnuzbb "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4008
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fmqnuzbb
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3912
- 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:2696
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2220 -s 888
  2⤵
  - Program crash
  PID:4512

C:\Windows\SysWOW64\fmqnuzbb\keevgpgi.exe
C:\Windows\SysWOW64\fmqnuzbb\keevgpgi.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-21_9a14a0443a32965ebd6da88df49e252d_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4336
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:236
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4336 -s 516
  2⤵
  - Program crash
  PID:2920

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4336 -ip 4336
1⤵
PID:4776

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2220 -ip 2220
1⤵
PID:4084

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\keevgpgi.exe

Filesize
10.7MB

MD5
bffd8c5db26d1fd2963ee819b9a960f5

SHA1
45c78c56eec3ff3ea6e3c03fd26e64fd6829b8ea

SHA256
d4859bd62d301b90904668ef4f9e3588d2e20c8f5f510874cf692998f642b91a

SHA512
0c279f9873676616f6ae56acfe7ff544eac43ab37afa14333042e57d3a0533bbf7974fa5f80698db32c31cd2bd9f412dab27fe2d4be2c8084f53ec20a83f94a0

Download Submit
memory/236-8-0x0000000000D50000-0x0000000000D65000-memory.dmp

Filesize
84KB

Download
memory/236-14-0x0000000000D50000-0x0000000000D65000-memory.dmp

Filesize
84KB

Download
memory/236-15-0x0000000000D50000-0x0000000000D65000-memory.dmp

Filesize
84KB

Download
memory/2220-1-0x0000000003030000-0x0000000003130000-memory.dmp

Filesize
1024KB

Download
memory/2220-2-0x0000000002E10000-0x0000000002E23000-memory.dmp

Filesize
76KB

Download
memory/2220-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2220-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2220-12-0x0000000002E10000-0x0000000002E23000-memory.dmp

Filesize
76KB

Download
memory/2220-10-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/4336-11-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads