tofsee | d86f71490a8c2a9ef435c9f3357bc7be2f07d7a485c0647c9eb0c894f7a5d222

General

Target

2025-02-06_f17438ac054c87900a20fe7ff982df84_mafia.exe
Size

12.9MB
MD5

f17438ac054c87900a20fe7ff982df84
SHA1

d242d99a7ceb3a7bd2b06b5e7a4fe7e862b5bf6e
SHA256

d86f71490a8c2a9ef435c9f3357bc7be2f07d7a485c0647c9eb0c894f7a5d222
SHA512

4d433e847f6c6f4292ba0d0a453c6624563148fbadf8bd2f4dc4d63e75106075242d7879796e01a6c3a3fb20f1a24a6589a3db0321807a967895ab59fca6837d
SSDEEP

6144:hLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQF:iTYe+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
4552	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\ieaumfiw\ImagePath = "C:\\Windows\\SysWOW64\\ieaumfiw\\vdswjhqq.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-1-5-21-2436272344-4274332273-444425594-1000\Control Panel\International\Geo\Nation	2025-02-06_f17438ac054c87900a20fe7ff982df84_mafia.exe

Deletes itself 1 IoCs

pid	Process
224	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4528	vdswjhqq.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4528 set thread context of 224	4528	vdswjhqq.exe	108

Launches sc.exe 3 IoCs

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

pid	Process
2528	sc.exe
3136	sc.exe
1784	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
876	4316	WerFault.exe	83
1924	4528	WerFault.exe	102

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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vdswjhqq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-06_f17438ac054c87900a20fe7ff982df84_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	netsh.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4316 wrote to memory of 1260	4316	2025-02-06_f17438ac054c87900a20fe7ff982df84_mafia.exe	87
PID 4316 wrote to memory of 1260	4316	2025-02-06_f17438ac054c87900a20fe7ff982df84_mafia.exe	87
PID 4316 wrote to memory of 1260	4316	2025-02-06_f17438ac054c87900a20fe7ff982df84_mafia.exe	87
PID 4316 wrote to memory of 2176	4316	2025-02-06_f17438ac054c87900a20fe7ff982df84_mafia.exe	89
PID 4316 wrote to memory of 2176	4316	2025-02-06_f17438ac054c87900a20fe7ff982df84_mafia.exe	89
PID 4316 wrote to memory of 2176	4316	2025-02-06_f17438ac054c87900a20fe7ff982df84_mafia.exe	89
PID 4316 wrote to memory of 2528	4316	2025-02-06_f17438ac054c87900a20fe7ff982df84_mafia.exe	92
PID 4316 wrote to memory of 2528	4316	2025-02-06_f17438ac054c87900a20fe7ff982df84_mafia.exe	92
PID 4316 wrote to memory of 2528	4316	2025-02-06_f17438ac054c87900a20fe7ff982df84_mafia.exe	92
PID 4316 wrote to memory of 3136	4316	2025-02-06_f17438ac054c87900a20fe7ff982df84_mafia.exe	97
PID 4316 wrote to memory of 3136	4316	2025-02-06_f17438ac054c87900a20fe7ff982df84_mafia.exe	97
PID 4316 wrote to memory of 3136	4316	2025-02-06_f17438ac054c87900a20fe7ff982df84_mafia.exe	97
PID 4316 wrote to memory of 1784	4316	2025-02-06_f17438ac054c87900a20fe7ff982df84_mafia.exe	100
PID 4316 wrote to memory of 1784	4316	2025-02-06_f17438ac054c87900a20fe7ff982df84_mafia.exe	100
PID 4316 wrote to memory of 1784	4316	2025-02-06_f17438ac054c87900a20fe7ff982df84_mafia.exe	100
PID 4316 wrote to memory of 4552	4316	2025-02-06_f17438ac054c87900a20fe7ff982df84_mafia.exe	103
PID 4316 wrote to memory of 4552	4316	2025-02-06_f17438ac054c87900a20fe7ff982df84_mafia.exe	103
PID 4316 wrote to memory of 4552	4316	2025-02-06_f17438ac054c87900a20fe7ff982df84_mafia.exe	103
PID 4528 wrote to memory of 224	4528	vdswjhqq.exe	108
PID 4528 wrote to memory of 224	4528	vdswjhqq.exe	108
PID 4528 wrote to memory of 224	4528	vdswjhqq.exe	108
PID 4528 wrote to memory of 224	4528	vdswjhqq.exe	108
PID 4528 wrote to memory of 224	4528	vdswjhqq.exe	108

C:\Users\Admin\AppData\Local\Temp\2025-02-06_f17438ac054c87900a20fe7ff982df84_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-06_f17438ac054c87900a20fe7ff982df84_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4316
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ieaumfiw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1260
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vdswjhqq.exe" C:\Windows\SysWOW64\ieaumfiw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2176
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ieaumfiw binPath= "C:\Windows\SysWOW64\ieaumfiw\vdswjhqq.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-06_f17438ac054c87900a20fe7ff982df84_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2528
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ieaumfiw "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3136
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ieaumfiw
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1784
- 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:4552
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4316 -s 772
  2⤵
  - Program crash
  PID:876

C:\Windows\SysWOW64\ieaumfiw\vdswjhqq.exe
C:\Windows\SysWOW64\ieaumfiw\vdswjhqq.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-06_f17438ac054c87900a20fe7ff982df84_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4528
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:224
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4528 -s 516
  2⤵
  - Program crash
  PID:1924

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4316 -ip 4316
1⤵
PID:4436

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4528 -ip 4528
1⤵
PID:3008

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\vdswjhqq.exe

Filesize
10.4MB

MD5
d03d350bf029f30e53b9043b53cfc45a

SHA1
01e94f2ad3c7698e7e39b63471f2da0b3591efbd

SHA256
ed1278ae84dd4abb5863717ca0404fa598ddb84949515cf70bb42fe74a019274

SHA512
3c01d44b353a300dbd70390cfda03359be103397e078a877eb6c5f169a64f323c876cde6173e8ba9f81db735d9d4ec74bbae55c534923c0b58f661488797eb74

Download Submit
memory/224-10-0x0000000000DD0000-0x0000000000DE5000-memory.dmp

Filesize
84KB

Download
memory/224-19-0x0000000000DD0000-0x0000000000DE5000-memory.dmp

Filesize
84KB

Download
memory/224-21-0x0000000000DD0000-0x0000000000DE5000-memory.dmp

Filesize
84KB

Download
memory/224-13-0x0000000000DD0000-0x0000000000DE5000-memory.dmp

Filesize
84KB

Download
memory/224-20-0x0000000000DD0000-0x0000000000DE5000-memory.dmp

Filesize
84KB

Download
memory/4316-2-0x0000000000620000-0x0000000000633000-memory.dmp

Filesize
76KB

Download
memory/4316-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4316-1-0x0000000000700000-0x0000000000800000-memory.dmp

Filesize
1024KB

Download
memory/4316-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4316-15-0x0000000000620000-0x0000000000633000-memory.dmp

Filesize
76KB

Download
memory/4316-14-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4528-9-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4528-18-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4528-8-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads