tofsee | 8725b4f41a04a1ca522aef8849a5913c92ac25c25f48cfdc8088fedb849fa71a

General

Target

2025-02-02_27747ecbdcce808c6ce32bfba76df845_mafia.exe
Size

13.2MB
MD5

27747ecbdcce808c6ce32bfba76df845
SHA1

cbe66e57f5a6e322d0f4655244dec4ef71f2a615
SHA256

8725b4f41a04a1ca522aef8849a5913c92ac25c25f48cfdc8088fedb849fa71a
SHA512

c3ff3d5f7c58ac2287d7547d2a0cb7558149b96461e98f311e3876731d46ec80eeb49dbaab6604dda2efd388d5c291f0312bbde328ffa5585ca191202dacb8cc
SSDEEP

3072:JLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/B:MOMdRQr7OB0ypmMXnl8XEPM3noSWOCW

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
1032	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\kyiqqclx\ImagePath = "C:\\Windows\\SysWOW64\\kyiqqclx\\hbbsdmdf.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-1-5-21-4003209913-3868522715-854928974-1000\Control Panel\International\Geo\Nation	2025-02-02_27747ecbdcce808c6ce32bfba76df845_mafia.exe

Deletes itself 1 IoCs

pid	Process
4144	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3336	hbbsdmdf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3336 set thread context of 4144	3336	hbbsdmdf.exe	104

Launches sc.exe 3 IoCs

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

pid	Process
1180	sc.exe
3964	sc.exe
884	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
5028	4776	WerFault.exe	82
5104	3336	WerFault.exe	98

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hbbsdmdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-02_27747ecbdcce808c6ce32bfba76df845_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	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 4776 wrote to memory of 3884	4776	2025-02-02_27747ecbdcce808c6ce32bfba76df845_mafia.exe	88
PID 4776 wrote to memory of 3884	4776	2025-02-02_27747ecbdcce808c6ce32bfba76df845_mafia.exe	88
PID 4776 wrote to memory of 3884	4776	2025-02-02_27747ecbdcce808c6ce32bfba76df845_mafia.exe	88
PID 4776 wrote to memory of 4108	4776	2025-02-02_27747ecbdcce808c6ce32bfba76df845_mafia.exe	90
PID 4776 wrote to memory of 4108	4776	2025-02-02_27747ecbdcce808c6ce32bfba76df845_mafia.exe	90
PID 4776 wrote to memory of 4108	4776	2025-02-02_27747ecbdcce808c6ce32bfba76df845_mafia.exe	90
PID 4776 wrote to memory of 1180	4776	2025-02-02_27747ecbdcce808c6ce32bfba76df845_mafia.exe	92
PID 4776 wrote to memory of 1180	4776	2025-02-02_27747ecbdcce808c6ce32bfba76df845_mafia.exe	92
PID 4776 wrote to memory of 1180	4776	2025-02-02_27747ecbdcce808c6ce32bfba76df845_mafia.exe	92
PID 4776 wrote to memory of 3964	4776	2025-02-02_27747ecbdcce808c6ce32bfba76df845_mafia.exe	94
PID 4776 wrote to memory of 3964	4776	2025-02-02_27747ecbdcce808c6ce32bfba76df845_mafia.exe	94
PID 4776 wrote to memory of 3964	4776	2025-02-02_27747ecbdcce808c6ce32bfba76df845_mafia.exe	94
PID 4776 wrote to memory of 884	4776	2025-02-02_27747ecbdcce808c6ce32bfba76df845_mafia.exe	96
PID 4776 wrote to memory of 884	4776	2025-02-02_27747ecbdcce808c6ce32bfba76df845_mafia.exe	96
PID 4776 wrote to memory of 884	4776	2025-02-02_27747ecbdcce808c6ce32bfba76df845_mafia.exe	96
PID 4776 wrote to memory of 1032	4776	2025-02-02_27747ecbdcce808c6ce32bfba76df845_mafia.exe	99
PID 4776 wrote to memory of 1032	4776	2025-02-02_27747ecbdcce808c6ce32bfba76df845_mafia.exe	99
PID 4776 wrote to memory of 1032	4776	2025-02-02_27747ecbdcce808c6ce32bfba76df845_mafia.exe	99
PID 3336 wrote to memory of 4144	3336	hbbsdmdf.exe	104
PID 3336 wrote to memory of 4144	3336	hbbsdmdf.exe	104
PID 3336 wrote to memory of 4144	3336	hbbsdmdf.exe	104
PID 3336 wrote to memory of 4144	3336	hbbsdmdf.exe	104
PID 3336 wrote to memory of 4144	3336	hbbsdmdf.exe	104

C:\Users\Admin\AppData\Local\Temp\2025-02-02_27747ecbdcce808c6ce32bfba76df845_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-02_27747ecbdcce808c6ce32bfba76df845_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4776
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kyiqqclx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3884
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hbbsdmdf.exe" C:\Windows\SysWOW64\kyiqqclx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4108
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kyiqqclx binPath= "C:\Windows\SysWOW64\kyiqqclx\hbbsdmdf.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_27747ecbdcce808c6ce32bfba76df845_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1180
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kyiqqclx "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3964
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kyiqqclx
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:884
- 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:1032
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4776 -s 1264
  2⤵
  - Program crash
  PID:5028

C:\Windows\SysWOW64\kyiqqclx\hbbsdmdf.exe
C:\Windows\SysWOW64\kyiqqclx\hbbsdmdf.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_27747ecbdcce808c6ce32bfba76df845_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3336
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4144
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3336 -s 512
  2⤵
  - Program crash
  PID:5104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4776 -ip 4776
1⤵
PID:2448

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3336 -ip 3336
1⤵
PID:3176

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\hbbsdmdf.exe

Filesize
10.9MB

MD5
2f36dd362f8b5cf15f734d3c3b86effa

SHA1
ef8ed39658851c956e38e931efafc2b280ca2e46

SHA256
f35e673b75499dd1193f37ccf96ae4ad9a2a2a4b318a7fe61b38130148aba965

SHA512
9a8d353af1b4865f0961a0f23042bc292207b71a588e94fba5e1a7c833c6319869736933da65b76cb9450934dc3e4fa40388b2d939dda343b825bb1cba887440

Download Submit
memory/3336-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3336-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3336-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3336-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4144-14-0x0000000000670000-0x0000000000685000-memory.dmp

Filesize
84KB

Download
memory/4144-16-0x0000000000670000-0x0000000000685000-memory.dmp

Filesize
84KB

Download
memory/4144-17-0x0000000000670000-0x0000000000685000-memory.dmp

Filesize
84KB

Download
memory/4776-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4776-2-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/4776-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4776-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4776-8-0x0000000000560000-0x0000000000573000-memory.dmp

Filesize
76KB

Download
memory/4776-1-0x0000000000720000-0x0000000000820000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads