tofsee | 26f3f96b93dee152a3a42cfe4903fe6bc84c1885e0ab5ab585ed15bdeb310b9e

General

Target

2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe
Size

12.6MB
MD5

f082e34b66daea7261a92c6b573ab9c9
SHA1

6122fab91a97699f87a0efb1dfd994204fba7473
SHA256

26f3f96b93dee152a3a42cfe4903fe6bc84c1885e0ab5ab585ed15bdeb310b9e
SHA512

ee88bea5bea4e0bb134137b8f6c820087b2554a047d62a40fad123708e499319c7416281bf20ca7a0b4f612b87e8e9cdff1fea3a0c547910b17602224f402cac
SSDEEP

24576:d6WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQI:MWdLQk

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
3844	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\lvdcyteg\ImagePath = "C:\\Windows\\SysWOW64\\lvdcyteg\\iuthscke.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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe

Deletes itself 1 IoCs

pid	Process
1728	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
744	iuthscke.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 744 set thread context of 1728	744	iuthscke.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
2308	sc.exe
1048	sc.exe
2372	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
4184	2304	WerFault.exe	83
4872	744	WerFault.exe	95

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	iuthscke.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_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	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2304 wrote to memory of 2436	2304	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	85
PID 2304 wrote to memory of 2436	2304	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	85
PID 2304 wrote to memory of 2436	2304	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	85
PID 2304 wrote to memory of 920	2304	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	87
PID 2304 wrote to memory of 920	2304	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	87
PID 2304 wrote to memory of 920	2304	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	87
PID 2304 wrote to memory of 2308	2304	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	89
PID 2304 wrote to memory of 2308	2304	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	89
PID 2304 wrote to memory of 2308	2304	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	89
PID 2304 wrote to memory of 1048	2304	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	91
PID 2304 wrote to memory of 1048	2304	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	91
PID 2304 wrote to memory of 1048	2304	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	91
PID 2304 wrote to memory of 2372	2304	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	93
PID 2304 wrote to memory of 2372	2304	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	93
PID 2304 wrote to memory of 2372	2304	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	93
PID 2304 wrote to memory of 3844	2304	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	96
PID 2304 wrote to memory of 3844	2304	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	96
PID 2304 wrote to memory of 3844	2304	2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe	96
PID 744 wrote to memory of 1728	744	iuthscke.exe	102
PID 744 wrote to memory of 1728	744	iuthscke.exe	102
PID 744 wrote to memory of 1728	744	iuthscke.exe	102
PID 744 wrote to memory of 1728	744	iuthscke.exe	102
PID 744 wrote to memory of 1728	744	iuthscke.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2304
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lvdcyteg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2436
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\iuthscke.exe" C:\Windows\SysWOW64\lvdcyteg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:920
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create lvdcyteg binPath= "C:\Windows\SysWOW64\lvdcyteg\iuthscke.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2308
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description lvdcyteg "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1048
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start lvdcyteg
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2372
- 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:3844
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2304 -s 596
  2⤵
  - Program crash
  PID:4184

C:\Windows\SysWOW64\lvdcyteg\iuthscke.exe
C:\Windows\SysWOW64\lvdcyteg\iuthscke.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-21_f082e34b66daea7261a92c6b573ab9c9_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:744
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1728
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 744 -s 532
  2⤵
  - Program crash
  PID:4872

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2304 -ip 2304
1⤵
PID:4076

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 744 -ip 744
1⤵
PID:4728

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\iuthscke.exe

Filesize
12.5MB

MD5
a8de60d4b4b978d1add7a3a19906c935

SHA1
5c61352cb8ac43f65ea8c8cfdcb0a2d5b7e287e4

SHA256
7d45fbe4d0188d883d528691ed96d0c624fed8cced2d71d0e44cb9172d96c51d

SHA512
2efbd5cdb199506c3ed4ed11da4f0766737593bee8ee2079255b231256abdf5226a2b9b41f445c9bce34a83f073a552d2286682675dd52f530c8738550286cef

Download Submit
memory/744-13-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/744-12-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/744-11-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/744-18-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1728-14-0x0000000000AB0000-0x0000000000AC5000-memory.dmp

Filesize
84KB

Download
memory/1728-16-0x0000000000AB0000-0x0000000000AC5000-memory.dmp

Filesize
84KB

Download
memory/1728-17-0x0000000000AB0000-0x0000000000AC5000-memory.dmp

Filesize
84KB

Download
memory/2304-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2304-2-0x00000000001D0000-0x00000000001E3000-memory.dmp

Filesize
76KB

Download
memory/2304-8-0x00000000001D0000-0x00000000001E3000-memory.dmp

Filesize
76KB

Download
memory/2304-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2304-7-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2304-1-0x00000000004E0000-0x00000000005E0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads