tofsee | 3e5d30f259b40ab127bba4769025389b12bf665b30d08d2f4a4f250f923dc724

General

Target

2025-02-02_e39357b928ca044e73012265da182453_mafia.exe
Size

12.9MB
MD5

e39357b928ca044e73012265da182453
SHA1

2dc6844a2f158f1d8902bfa57cb2e2caa31e8572
SHA256

3e5d30f259b40ab127bba4769025389b12bf665b30d08d2f4a4f250f923dc724
SHA512

5cd11ab9a7d1cbb699219f182bc7ac83207b2759047b6385ff283c86cd306d1329ae70842c5634c84f322c719020ef6c2286cd31a7347b3e35f11fa8e66a8804
SSDEEP

6144:8LQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQ:xTYe+D2jFu+iZoUFhAz

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
4692	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\jddiyqbb\ImagePath = "C:\\Windows\\SysWOW64\\jddiyqbb\\vmuscxes.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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe

Deletes itself 1 IoCs

pid	Process
2084	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
940	vmuscxes.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 940 set thread context of 2084	940	vmuscxes.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
4048	sc.exe
3384	sc.exe
4772	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
244	2472	WerFault.exe	81
2196	940	WerFault.exe	92

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-02_e39357b928ca044e73012265da182453_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	vmuscxes.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 2472 wrote to memory of 4284	2472	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	82
PID 2472 wrote to memory of 4284	2472	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	82
PID 2472 wrote to memory of 4284	2472	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	82
PID 2472 wrote to memory of 3600	2472	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	84
PID 2472 wrote to memory of 3600	2472	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	84
PID 2472 wrote to memory of 3600	2472	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	84
PID 2472 wrote to memory of 4772	2472	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	86
PID 2472 wrote to memory of 4772	2472	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	86
PID 2472 wrote to memory of 4772	2472	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	86
PID 2472 wrote to memory of 4048	2472	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	88
PID 2472 wrote to memory of 4048	2472	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	88
PID 2472 wrote to memory of 4048	2472	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	88
PID 2472 wrote to memory of 3384	2472	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	90
PID 2472 wrote to memory of 3384	2472	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	90
PID 2472 wrote to memory of 3384	2472	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	90
PID 2472 wrote to memory of 4692	2472	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	93
PID 2472 wrote to memory of 4692	2472	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	93
PID 2472 wrote to memory of 4692	2472	2025-02-02_e39357b928ca044e73012265da182453_mafia.exe	93
PID 940 wrote to memory of 2084	940	vmuscxes.exe	97
PID 940 wrote to memory of 2084	940	vmuscxes.exe	97
PID 940 wrote to memory of 2084	940	vmuscxes.exe	97
PID 940 wrote to memory of 2084	940	vmuscxes.exe	97
PID 940 wrote to memory of 2084	940	vmuscxes.exe	97

C:\Users\Admin\AppData\Local\Temp\2025-02-02_e39357b928ca044e73012265da182453_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-02_e39357b928ca044e73012265da182453_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2472
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jddiyqbb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4284
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vmuscxes.exe" C:\Windows\SysWOW64\jddiyqbb\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3600
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jddiyqbb binPath= "C:\Windows\SysWOW64\jddiyqbb\vmuscxes.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_e39357b928ca044e73012265da182453_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4772
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jddiyqbb "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4048
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jddiyqbb
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3384
- 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:4692
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2472 -s 1044
  2⤵
  - Program crash
  PID:244

C:\Windows\SysWOW64\jddiyqbb\vmuscxes.exe
C:\Windows\SysWOW64\jddiyqbb\vmuscxes.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_e39357b928ca044e73012265da182453_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:940
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2084
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 940 -s 528
  2⤵
  - Program crash
  PID:2196

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2472 -ip 2472
1⤵
PID:5040

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 940 -ip 940
1⤵
PID:3492

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\vmuscxes.exe

Filesize
10.3MB

MD5
f54eb4aff10d67094d8fd8f2a651ed1d

SHA1
d09ef042a26a781b3c2f3a8e3ea41683e49bdae6

SHA256
210d98de3ef0b9fa050ad69e1397e0da8e060deecae4940ff884d67848a37721

SHA512
ea5c991932d41b9fa4e0137c4236ae559fbadee21c876d97a15655aea3e98c120690e4ce0e6f4f0aa0870f629af137a789da57d591ee48682bc77c9671fbaf2a

Download Submit
memory/940-8-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/940-15-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/940-9-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2084-10-0x0000000000870000-0x0000000000885000-memory.dmp

Filesize
84KB

Download
memory/2084-13-0x0000000000870000-0x0000000000885000-memory.dmp

Filesize
84KB

Download
memory/2084-19-0x0000000000870000-0x0000000000885000-memory.dmp

Filesize
84KB

Download
memory/2084-20-0x0000000000870000-0x0000000000885000-memory.dmp

Filesize
84KB

Download
memory/2084-21-0x0000000000870000-0x0000000000885000-memory.dmp

Filesize
84KB

Download
memory/2472-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2472-2-0x0000000000530000-0x0000000000543000-memory.dmp

Filesize
76KB

Download
memory/2472-1-0x00000000005B0000-0x00000000006B0000-memory.dmp

Filesize
1024KB

Download
memory/2472-18-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2472-17-0x0000000000530000-0x0000000000543000-memory.dmp

Filesize
76KB

Download
memory/2472-16-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads