tofsee | 07cd63a39bc7e39cc04f8ae3833efba10b921cf741fd1b73ab2fbdd2499a639d

General

Target

2025-02-01_f459bea29e6b053f0579414f1567e7f5_mafia.exe
Size

12.6MB
MD5

f459bea29e6b053f0579414f1567e7f5
SHA1

b3c21498ac4bf3e3f92b5b9b8e46abf8d0f8491f
SHA256

07cd63a39bc7e39cc04f8ae3833efba10b921cf741fd1b73ab2fbdd2499a639d
SHA512

40ad31fc9bb62d32b61f9dda1efce44d4194c3c23edfc6bc33798a65f4cfc77015f1b2bfbc660d310d3cbcf8cde9ac6c7fffca02a8db1bb3202dfcb64251f66b
SSDEEP

393216:cXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXn:

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
2128	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\yvswfjnl\ImagePath = "C:\\Windows\\SysWOW64\\yvswfjnl\\jddufofh.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-1-5-21-3625106387-4207083342-115176794-1000\Control Panel\International\Geo\Nation	2025-02-01_f459bea29e6b053f0579414f1567e7f5_mafia.exe

Deletes itself 1 IoCs

pid	Process
2096	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
760	jddufofh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 760 set thread context of 2096	760	jddufofh.exe	97

Launches sc.exe 3 IoCs

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

pid	Process
756	sc.exe
1336	sc.exe
2068	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	sc.exe
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	2025-02-01_f459bea29e6b053f0579414f1567e7f5_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	jddufofh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4312 wrote to memory of 116	4312	2025-02-01_f459bea29e6b053f0579414f1567e7f5_mafia.exe	86
PID 4312 wrote to memory of 116	4312	2025-02-01_f459bea29e6b053f0579414f1567e7f5_mafia.exe	86
PID 4312 wrote to memory of 116	4312	2025-02-01_f459bea29e6b053f0579414f1567e7f5_mafia.exe	86
PID 4312 wrote to memory of 4000	4312	2025-02-01_f459bea29e6b053f0579414f1567e7f5_mafia.exe	88
PID 4312 wrote to memory of 4000	4312	2025-02-01_f459bea29e6b053f0579414f1567e7f5_mafia.exe	88
PID 4312 wrote to memory of 4000	4312	2025-02-01_f459bea29e6b053f0579414f1567e7f5_mafia.exe	88
PID 4312 wrote to memory of 756	4312	2025-02-01_f459bea29e6b053f0579414f1567e7f5_mafia.exe	90
PID 4312 wrote to memory of 756	4312	2025-02-01_f459bea29e6b053f0579414f1567e7f5_mafia.exe	90
PID 4312 wrote to memory of 756	4312	2025-02-01_f459bea29e6b053f0579414f1567e7f5_mafia.exe	90
PID 4312 wrote to memory of 1336	4312	2025-02-01_f459bea29e6b053f0579414f1567e7f5_mafia.exe	92
PID 4312 wrote to memory of 1336	4312	2025-02-01_f459bea29e6b053f0579414f1567e7f5_mafia.exe	92
PID 4312 wrote to memory of 1336	4312	2025-02-01_f459bea29e6b053f0579414f1567e7f5_mafia.exe	92
PID 4312 wrote to memory of 2068	4312	2025-02-01_f459bea29e6b053f0579414f1567e7f5_mafia.exe	94
PID 4312 wrote to memory of 2068	4312	2025-02-01_f459bea29e6b053f0579414f1567e7f5_mafia.exe	94
PID 4312 wrote to memory of 2068	4312	2025-02-01_f459bea29e6b053f0579414f1567e7f5_mafia.exe	94
PID 760 wrote to memory of 2096	760	jddufofh.exe	97
PID 760 wrote to memory of 2096	760	jddufofh.exe	97
PID 760 wrote to memory of 2096	760	jddufofh.exe	97
PID 760 wrote to memory of 2096	760	jddufofh.exe	97
PID 760 wrote to memory of 2096	760	jddufofh.exe	97
PID 4312 wrote to memory of 2128	4312	2025-02-01_f459bea29e6b053f0579414f1567e7f5_mafia.exe	98
PID 4312 wrote to memory of 2128	4312	2025-02-01_f459bea29e6b053f0579414f1567e7f5_mafia.exe	98
PID 4312 wrote to memory of 2128	4312	2025-02-01_f459bea29e6b053f0579414f1567e7f5_mafia.exe	98

C:\Users\Admin\AppData\Local\Temp\2025-02-01_f459bea29e6b053f0579414f1567e7f5_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_f459bea29e6b053f0579414f1567e7f5_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4312
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\yvswfjnl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:116
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jddufofh.exe" C:\Windows\SysWOW64\yvswfjnl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4000
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create yvswfjnl binPath= "C:\Windows\SysWOW64\yvswfjnl\jddufofh.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_f459bea29e6b053f0579414f1567e7f5_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:756
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description yvswfjnl "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1336
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start yvswfjnl
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2068
- 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:2128

C:\Windows\SysWOW64\yvswfjnl\jddufofh.exe
C:\Windows\SysWOW64\yvswfjnl\jddufofh.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_f459bea29e6b053f0579414f1567e7f5_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:760
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2096

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\jddufofh.exe

Filesize
11.5MB

MD5
b5034d0edd1045587488a4b901504d2c

SHA1
0be6ffa9afb5bed7f11c321e5d4580f473ca1705

SHA256
bec3e3611ca7cbbbf33d6623108bfbdd17d7b34196fcaeb62874cceef7b26cf3

SHA512
844b9e1ddbb3740dadea092810a2683d4f8a916b33f710fcecfc320589fe01737ddef16be8db08c8070be4c0c3b42d2849d9cbbc03db4e5f6373b87ef601df74

Download Submit
memory/760-16-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/760-8-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/760-10-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/760-9-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2096-14-0x0000000001270000-0x0000000001285000-memory.dmp

Filesize
84KB

Download
memory/2096-11-0x0000000001270000-0x0000000001285000-memory.dmp

Filesize
84KB

Download
memory/2096-20-0x0000000001270000-0x0000000001285000-memory.dmp

Filesize
84KB

Download
memory/2096-21-0x0000000001270000-0x0000000001285000-memory.dmp

Filesize
84KB

Download
memory/2096-22-0x0000000001270000-0x0000000001285000-memory.dmp

Filesize
84KB

Download
memory/4312-1-0x0000000000580000-0x0000000000680000-memory.dmp

Filesize
1024KB

Download
memory/4312-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4312-2-0x0000000000530000-0x0000000000543000-memory.dmp

Filesize
76KB

Download
memory/4312-19-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4312-18-0x0000000000530000-0x0000000000543000-memory.dmp

Filesize
76KB

Download
memory/4312-17-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads