tofsee | 987b38ac36fba4747933c3baa01a9f1b3012b35f9334093fcc79ec7a07279ff0

General

Target

2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe
Size

11.1MB
MD5

bdfeca1c373b9383437d4ab439a9b022
SHA1

37798d79b99734005cf1862ce88129bde2d698a4
SHA256

987b38ac36fba4747933c3baa01a9f1b3012b35f9334093fcc79ec7a07279ff0
SHA512

79ac65823fea1447b99e4c1c3ba687bf1988a225d9097532a19c59781a5966475913c20c69ba4305b1909301dc8795ac3afa92a9eb15ff06ca8d995512b3c92a
SSDEEP

196608:IyXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXH:tXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

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
3408	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\rulgowfk\ImagePath = "C:\\Windows\\SysWOW64\\rulgowfk\\eyypajac.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-1-5-21-1121399784-3202166597-3503557106-1000\Control Panel\International\Geo\Nation	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe

Deletes itself 1 IoCs

pid	Process
3648	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3056	eyypajac.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3056 set thread context of 3648	3056	eyypajac.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
2060	sc.exe
2624	sc.exe
1764	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

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	eyypajac.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_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	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3960 wrote to memory of 848	3960	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	86
PID 3960 wrote to memory of 848	3960	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	86
PID 3960 wrote to memory of 848	3960	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	86
PID 3960 wrote to memory of 2672	3960	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	89
PID 3960 wrote to memory of 2672	3960	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	89
PID 3960 wrote to memory of 2672	3960	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	89
PID 3960 wrote to memory of 2624	3960	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	92
PID 3960 wrote to memory of 2624	3960	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	92
PID 3960 wrote to memory of 2624	3960	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	92
PID 3960 wrote to memory of 1764	3960	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	95
PID 3960 wrote to memory of 1764	3960	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	95
PID 3960 wrote to memory of 1764	3960	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	95
PID 3960 wrote to memory of 2060	3960	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	97
PID 3960 wrote to memory of 2060	3960	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	97
PID 3960 wrote to memory of 2060	3960	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	97
PID 3960 wrote to memory of 3408	3960	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	100
PID 3960 wrote to memory of 3408	3960	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	100
PID 3960 wrote to memory of 3408	3960	2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe	100
PID 3056 wrote to memory of 3648	3056	eyypajac.exe	102
PID 3056 wrote to memory of 3648	3056	eyypajac.exe	102
PID 3056 wrote to memory of 3648	3056	eyypajac.exe	102
PID 3056 wrote to memory of 3648	3056	eyypajac.exe	102
PID 3056 wrote to memory of 3648	3056	eyypajac.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3960
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rulgowfk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:848
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\eyypajac.exe" C:\Windows\SysWOW64\rulgowfk\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2672
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rulgowfk binPath= "C:\Windows\SysWOW64\rulgowfk\eyypajac.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2624
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rulgowfk "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1764
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rulgowfk
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2060
- 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:3408

C:\Windows\SysWOW64\rulgowfk\eyypajac.exe
C:\Windows\SysWOW64\rulgowfk\eyypajac.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_bdfeca1c373b9383437d4ab439a9b022_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3056
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3648

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\eyypajac.exe

Filesize
12.5MB

MD5
cdf6691f9acb932affd7efbe0f87c67b

SHA1
6eef017fc547bf10e160edb2c353c8c38f7cb2f6

SHA256
c622452a6ef4332517517de6d958dc47b9f9a6fe902cac7ab04482ab94f00a18

SHA512
b94d846d568150a5b00156710ef62f3c7d05e31572114f89cb2d28dbd2337d6e37e1a556f778122d82e279b67c6c2738d9245d095af813147da30de3bb2690f5

Download Submit
memory/3056-12-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3056-19-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3056-11-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/3648-20-0x00000000002F0000-0x0000000000305000-memory.dmp

Filesize
84KB

Download
memory/3648-13-0x00000000002F0000-0x0000000000305000-memory.dmp

Filesize
84KB

Download
memory/3648-16-0x00000000002F0000-0x0000000000305000-memory.dmp

Filesize
84KB

Download
memory/3648-17-0x00000000002F0000-0x0000000000305000-memory.dmp

Filesize
84KB

Download
memory/3648-21-0x00000000002F0000-0x0000000000305000-memory.dmp

Filesize
84KB

Download
memory/3960-8-0x00000000001E0000-0x00000000001F3000-memory.dmp

Filesize
76KB

Download
memory/3960-1-0x0000000000640000-0x0000000000740000-memory.dmp

Filesize
1024KB

Download
memory/3960-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3960-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3960-2-0x00000000001E0000-0x00000000001F3000-memory.dmp

Filesize
76KB

Download
memory/3960-7-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads