tofsee | 710bc2bf55462500540675be0f0310615feab68b516920490cfbc7024a2e9c10

General

Target

2025-01-28_c062307017454af9e7f89920ca5225b3_mafia.exe
Size

11.7MB
MD5

c062307017454af9e7f89920ca5225b3
SHA1

933fb5be727d82d4fd302e377619e07bc55ca490
SHA256

710bc2bf55462500540675be0f0310615feab68b516920490cfbc7024a2e9c10
SHA512

1d667e99d7f1f462f87dd82266ded0fb053074975270cdb25f278951a7580d63699f442b328b17caf122cd81a213b9a1dfecff86c9d7fbd57d9b4e07b54960cf
SSDEEP

6144:zLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQ8:ITYe+D2jFu+iZoUFhAzh

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
1200	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\ooevmhyn\ImagePath = "C:\\Windows\\SysWOW64\\ooevmhyn\\mmnytusa.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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	2025-01-28_c062307017454af9e7f89920ca5225b3_mafia.exe

Deletes itself 1 IoCs

pid	Process
1712	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2804	mmnytusa.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2804 set thread context of 1712	2804	mmnytusa.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
1668	sc.exe
824	sc.exe
4296	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
4092	2224	WerFault.exe	81
2868	2804	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	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	mmnytusa.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-28_c062307017454af9e7f89920ca5225b3_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2224 wrote to memory of 2184	2224	2025-01-28_c062307017454af9e7f89920ca5225b3_mafia.exe	82
PID 2224 wrote to memory of 2184	2224	2025-01-28_c062307017454af9e7f89920ca5225b3_mafia.exe	82
PID 2224 wrote to memory of 2184	2224	2025-01-28_c062307017454af9e7f89920ca5225b3_mafia.exe	82
PID 2224 wrote to memory of 4916	2224	2025-01-28_c062307017454af9e7f89920ca5225b3_mafia.exe	84
PID 2224 wrote to memory of 4916	2224	2025-01-28_c062307017454af9e7f89920ca5225b3_mafia.exe	84
PID 2224 wrote to memory of 4916	2224	2025-01-28_c062307017454af9e7f89920ca5225b3_mafia.exe	84
PID 2224 wrote to memory of 824	2224	2025-01-28_c062307017454af9e7f89920ca5225b3_mafia.exe	86
PID 2224 wrote to memory of 824	2224	2025-01-28_c062307017454af9e7f89920ca5225b3_mafia.exe	86
PID 2224 wrote to memory of 824	2224	2025-01-28_c062307017454af9e7f89920ca5225b3_mafia.exe	86
PID 2224 wrote to memory of 4296	2224	2025-01-28_c062307017454af9e7f89920ca5225b3_mafia.exe	88
PID 2224 wrote to memory of 4296	2224	2025-01-28_c062307017454af9e7f89920ca5225b3_mafia.exe	88
PID 2224 wrote to memory of 4296	2224	2025-01-28_c062307017454af9e7f89920ca5225b3_mafia.exe	88
PID 2224 wrote to memory of 1668	2224	2025-01-28_c062307017454af9e7f89920ca5225b3_mafia.exe	90
PID 2224 wrote to memory of 1668	2224	2025-01-28_c062307017454af9e7f89920ca5225b3_mafia.exe	90
PID 2224 wrote to memory of 1668	2224	2025-01-28_c062307017454af9e7f89920ca5225b3_mafia.exe	90
PID 2224 wrote to memory of 1200	2224	2025-01-28_c062307017454af9e7f89920ca5225b3_mafia.exe	93
PID 2224 wrote to memory of 1200	2224	2025-01-28_c062307017454af9e7f89920ca5225b3_mafia.exe	93
PID 2224 wrote to memory of 1200	2224	2025-01-28_c062307017454af9e7f89920ca5225b3_mafia.exe	93
PID 2804 wrote to memory of 1712	2804	mmnytusa.exe	98
PID 2804 wrote to memory of 1712	2804	mmnytusa.exe	98
PID 2804 wrote to memory of 1712	2804	mmnytusa.exe	98
PID 2804 wrote to memory of 1712	2804	mmnytusa.exe	98
PID 2804 wrote to memory of 1712	2804	mmnytusa.exe	98

C:\Users\Admin\AppData\Local\Temp\2025-01-28_c062307017454af9e7f89920ca5225b3_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-28_c062307017454af9e7f89920ca5225b3_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2224
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ooevmhyn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2184
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mmnytusa.exe" C:\Windows\SysWOW64\ooevmhyn\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4916
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ooevmhyn binPath= "C:\Windows\SysWOW64\ooevmhyn\mmnytusa.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-28_c062307017454af9e7f89920ca5225b3_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:824
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ooevmhyn "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4296
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ooevmhyn
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1668
- 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:1200
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2224 -s 664
  2⤵
  - Program crash
  PID:4092

C:\Windows\SysWOW64\ooevmhyn\mmnytusa.exe
C:\Windows\SysWOW64\ooevmhyn\mmnytusa.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-28_c062307017454af9e7f89920ca5225b3_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2804
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1712
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2804 -s 512
  2⤵
  - Program crash
  PID:2868

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2224 -ip 2224
1⤵
PID:3668

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 2804 -ip 2804
1⤵
PID:4212

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\mmnytusa.exe

Filesize
12.8MB

MD5
b52c8ad7c42c0f0cbfcb5e5d502e944c

SHA1
a5fa32e608a6ece2b645a6fa3e8088a462d4f7fd

SHA256
caf7cdf049a3773cce9e7e537d8accf8ae25ff695d2b0cce4bf7796d1e4a08d8

SHA512
9d2b05cb4aedab11019b02ff856211119aa090a7ff088950cc9ec3fd391d88bc7ab05ce5b33d5d0fff43ea658db37ab86d080806c676126398afa1cc02246395

Download Submit
memory/1712-10-0x00000000003C0000-0x00000000003D5000-memory.dmp

Filesize
84KB

Download
memory/1712-16-0x00000000003C0000-0x00000000003D5000-memory.dmp

Filesize
84KB

Download
memory/1712-17-0x00000000003C0000-0x00000000003D5000-memory.dmp

Filesize
84KB

Download
memory/2224-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2224-2-0x0000000000510000-0x0000000000523000-memory.dmp

Filesize
76KB

Download
memory/2224-1-0x0000000000540000-0x0000000000640000-memory.dmp

Filesize
1024KB

Download
memory/2224-14-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2224-12-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2224-13-0x0000000000510000-0x0000000000523000-memory.dmp

Filesize
76KB

Download
memory/2804-8-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2804-9-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2804-15-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads