tofsee | 2898764fe5c352ebc70cab100fe6c8bcae7b783ebece8a55a34dc008c612bfcc

General

Target

2025-01-31_e0de00f01e31c5e73f38e0c3eb046d90_mafia.exe
Size

12.3MB
MD5

e0de00f01e31c5e73f38e0c3eb046d90
SHA1

6a8d03c22aba12d3c9d52cf45daf916f18def6bb
SHA256

2898764fe5c352ebc70cab100fe6c8bcae7b783ebece8a55a34dc008c612bfcc
SHA512

90615cc5d3fc75902edbe2236c1af713501c351d233b2a50237adb6f7aecd26086f87a92e7776f211bfc6016a81659bde7984dde28bfa521d80bd24d306f03fd
SSDEEP

24576:BEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZn:afot

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
2564	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\iaigiqyd\ImagePath = "C:\\Windows\\SysWOW64\\iaigiqyd\\okcczonb.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-1-5-21-2089655958-977706906-1981639424-1000\Control Panel\International\Geo\Nation	2025-01-31_e0de00f01e31c5e73f38e0c3eb046d90_mafia.exe

Deletes itself 1 IoCs

pid	Process
2940	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1580	okcczonb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1580 set thread context of 2940	1580	okcczonb.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
2044	sc.exe
4136	sc.exe
4220	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1960	3320	WerFault.exe	82
1032	1580	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	2025-01-31_e0de00f01e31c5e73f38e0c3eb046d90_mafia.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	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	okcczonb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3320 wrote to memory of 3140	3320	2025-01-31_e0de00f01e31c5e73f38e0c3eb046d90_mafia.exe	86
PID 3320 wrote to memory of 3140	3320	2025-01-31_e0de00f01e31c5e73f38e0c3eb046d90_mafia.exe	86
PID 3320 wrote to memory of 3140	3320	2025-01-31_e0de00f01e31c5e73f38e0c3eb046d90_mafia.exe	86
PID 3320 wrote to memory of 4944	3320	2025-01-31_e0de00f01e31c5e73f38e0c3eb046d90_mafia.exe	88
PID 3320 wrote to memory of 4944	3320	2025-01-31_e0de00f01e31c5e73f38e0c3eb046d90_mafia.exe	88
PID 3320 wrote to memory of 4944	3320	2025-01-31_e0de00f01e31c5e73f38e0c3eb046d90_mafia.exe	88
PID 3320 wrote to memory of 2044	3320	2025-01-31_e0de00f01e31c5e73f38e0c3eb046d90_mafia.exe	90
PID 3320 wrote to memory of 2044	3320	2025-01-31_e0de00f01e31c5e73f38e0c3eb046d90_mafia.exe	90
PID 3320 wrote to memory of 2044	3320	2025-01-31_e0de00f01e31c5e73f38e0c3eb046d90_mafia.exe	90
PID 3320 wrote to memory of 4136	3320	2025-01-31_e0de00f01e31c5e73f38e0c3eb046d90_mafia.exe	92
PID 3320 wrote to memory of 4136	3320	2025-01-31_e0de00f01e31c5e73f38e0c3eb046d90_mafia.exe	92
PID 3320 wrote to memory of 4136	3320	2025-01-31_e0de00f01e31c5e73f38e0c3eb046d90_mafia.exe	92
PID 3320 wrote to memory of 4220	3320	2025-01-31_e0de00f01e31c5e73f38e0c3eb046d90_mafia.exe	94
PID 3320 wrote to memory of 4220	3320	2025-01-31_e0de00f01e31c5e73f38e0c3eb046d90_mafia.exe	94
PID 3320 wrote to memory of 4220	3320	2025-01-31_e0de00f01e31c5e73f38e0c3eb046d90_mafia.exe	94
PID 3320 wrote to memory of 2564	3320	2025-01-31_e0de00f01e31c5e73f38e0c3eb046d90_mafia.exe	97
PID 3320 wrote to memory of 2564	3320	2025-01-31_e0de00f01e31c5e73f38e0c3eb046d90_mafia.exe	97
PID 3320 wrote to memory of 2564	3320	2025-01-31_e0de00f01e31c5e73f38e0c3eb046d90_mafia.exe	97
PID 1580 wrote to memory of 2940	1580	okcczonb.exe	102
PID 1580 wrote to memory of 2940	1580	okcczonb.exe	102
PID 1580 wrote to memory of 2940	1580	okcczonb.exe	102
PID 1580 wrote to memory of 2940	1580	okcczonb.exe	102
PID 1580 wrote to memory of 2940	1580	okcczonb.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-01-31_e0de00f01e31c5e73f38e0c3eb046d90_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-31_e0de00f01e31c5e73f38e0c3eb046d90_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3320
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\iaigiqyd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3140
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\okcczonb.exe" C:\Windows\SysWOW64\iaigiqyd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4944
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create iaigiqyd binPath= "C:\Windows\SysWOW64\iaigiqyd\okcczonb.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_e0de00f01e31c5e73f38e0c3eb046d90_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2044
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description iaigiqyd "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4136
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start iaigiqyd
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4220
- 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:2564
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3320 -s 572
  2⤵
  - Program crash
  PID:1960

C:\Windows\SysWOW64\iaigiqyd\okcczonb.exe
C:\Windows\SysWOW64\iaigiqyd\okcczonb.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_e0de00f01e31c5e73f38e0c3eb046d90_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1580
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2940
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1580 -s 512
  2⤵
  - Program crash
  PID:1032

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3320 -ip 3320
1⤵
PID:2888

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 1580 -ip 1580
1⤵
PID:1664

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\okcczonb.exe

Filesize
13.2MB

MD5
66e9c466bb4e9ffb0d09a2db74f04e4d

SHA1
0071911c6d4d4e5706c645a2ed06b3bbd8e26b34

SHA256
44f869d82766b0fc19fd901357bb17bd6f02550ec9afb3c38c3aa4d5785092d3

SHA512
086eaf2252aa9330d5d54a17a835ff3c9c48566ce65229108bb6e9ca206268f2c2dc327bd36657588d1cc78b23d93da62da9932af44a9cdace1427f9b1c48119

Download Submit
memory/1580-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1580-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1580-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1580-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2940-14-0x0000000000460000-0x0000000000475000-memory.dmp

Filesize
84KB

Download
memory/2940-16-0x0000000000460000-0x0000000000475000-memory.dmp

Filesize
84KB

Download
memory/2940-17-0x0000000000460000-0x0000000000475000-memory.dmp

Filesize
84KB

Download
memory/3320-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3320-8-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/3320-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3320-1-0x0000000000460000-0x0000000000560000-memory.dmp

Filesize
1024KB

Download
memory/3320-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3320-2-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads