tofsee | 942030f148b84380bd6d7d6b19ce99a8717e4614333e216e505f0886087a1243

Analysis

max time kernel
144s
max time network
124s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02-02-2025 01:08

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General

Target

2025-02-02_7ad23caeb2c9e5adc7a3ee8e4881d40c_mafia.exe
Size

14.0MB
MD5

7ad23caeb2c9e5adc7a3ee8e4881d40c
SHA1

df8f22b2382a5dac799c19b814d8a4c2c6de33d6
SHA256

942030f148b84380bd6d7d6b19ce99a8717e4614333e216e505f0886087a1243
SHA512

cdc90ae7180cdcdcf33b19157439c276459f6bf53af4d43c33292707f2d6bb20a7570a4259e02feb883d9234a37fe0e9575f49ea0d381facef64e2e04dd0dc4e
SSDEEP

24576:ypomTTN9tttttttttttttttttttttttttttttttttttttttttttttttttttttttH:Woo

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

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

Windows security bypass 2 TTPs 1 IoCs

defense_evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\lmuvcmec = "0"	svchost.exe

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
2864	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\lmuvcmec\ImagePath = "C:\\Windows\\SysWOW64\\lmuvcmec\\ygvzmktt.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2688	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2876	ygvzmktt.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2876 set thread context of 2688	2876	ygvzmktt.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2528	sc.exe
2432	sc.exe
2740	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

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	2025-02-02_7ad23caeb2c9e5adc7a3ee8e4881d40c_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ygvzmktt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1904 wrote to memory of 3044	1904	2025-02-02_7ad23caeb2c9e5adc7a3ee8e4881d40c_mafia.exe	30
PID 1904 wrote to memory of 3044	1904	2025-02-02_7ad23caeb2c9e5adc7a3ee8e4881d40c_mafia.exe	30
PID 1904 wrote to memory of 3044	1904	2025-02-02_7ad23caeb2c9e5adc7a3ee8e4881d40c_mafia.exe	30
PID 1904 wrote to memory of 3044	1904	2025-02-02_7ad23caeb2c9e5adc7a3ee8e4881d40c_mafia.exe	30
PID 1904 wrote to memory of 1708	1904	2025-02-02_7ad23caeb2c9e5adc7a3ee8e4881d40c_mafia.exe	32
PID 1904 wrote to memory of 1708	1904	2025-02-02_7ad23caeb2c9e5adc7a3ee8e4881d40c_mafia.exe	32
PID 1904 wrote to memory of 1708	1904	2025-02-02_7ad23caeb2c9e5adc7a3ee8e4881d40c_mafia.exe	32
PID 1904 wrote to memory of 1708	1904	2025-02-02_7ad23caeb2c9e5adc7a3ee8e4881d40c_mafia.exe	32
PID 1904 wrote to memory of 2528	1904	2025-02-02_7ad23caeb2c9e5adc7a3ee8e4881d40c_mafia.exe	34
PID 1904 wrote to memory of 2528	1904	2025-02-02_7ad23caeb2c9e5adc7a3ee8e4881d40c_mafia.exe	34
PID 1904 wrote to memory of 2528	1904	2025-02-02_7ad23caeb2c9e5adc7a3ee8e4881d40c_mafia.exe	34
PID 1904 wrote to memory of 2528	1904	2025-02-02_7ad23caeb2c9e5adc7a3ee8e4881d40c_mafia.exe	34
PID 1904 wrote to memory of 2432	1904	2025-02-02_7ad23caeb2c9e5adc7a3ee8e4881d40c_mafia.exe	36
PID 1904 wrote to memory of 2432	1904	2025-02-02_7ad23caeb2c9e5adc7a3ee8e4881d40c_mafia.exe	36
PID 1904 wrote to memory of 2432	1904	2025-02-02_7ad23caeb2c9e5adc7a3ee8e4881d40c_mafia.exe	36
PID 1904 wrote to memory of 2432	1904	2025-02-02_7ad23caeb2c9e5adc7a3ee8e4881d40c_mafia.exe	36
PID 1904 wrote to memory of 2740	1904	2025-02-02_7ad23caeb2c9e5adc7a3ee8e4881d40c_mafia.exe	38
PID 1904 wrote to memory of 2740	1904	2025-02-02_7ad23caeb2c9e5adc7a3ee8e4881d40c_mafia.exe	38
PID 1904 wrote to memory of 2740	1904	2025-02-02_7ad23caeb2c9e5adc7a3ee8e4881d40c_mafia.exe	38
PID 1904 wrote to memory of 2740	1904	2025-02-02_7ad23caeb2c9e5adc7a3ee8e4881d40c_mafia.exe	38
PID 2876 wrote to memory of 2688	2876	ygvzmktt.exe	41
PID 2876 wrote to memory of 2688	2876	ygvzmktt.exe	41
PID 2876 wrote to memory of 2688	2876	ygvzmktt.exe	41
PID 2876 wrote to memory of 2688	2876	ygvzmktt.exe	41
PID 2876 wrote to memory of 2688	2876	ygvzmktt.exe	41
PID 2876 wrote to memory of 2688	2876	ygvzmktt.exe	41
PID 1904 wrote to memory of 2864	1904	2025-02-02_7ad23caeb2c9e5adc7a3ee8e4881d40c_mafia.exe	42
PID 1904 wrote to memory of 2864	1904	2025-02-02_7ad23caeb2c9e5adc7a3ee8e4881d40c_mafia.exe	42
PID 1904 wrote to memory of 2864	1904	2025-02-02_7ad23caeb2c9e5adc7a3ee8e4881d40c_mafia.exe	42
PID 1904 wrote to memory of 2864	1904	2025-02-02_7ad23caeb2c9e5adc7a3ee8e4881d40c_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-02-02_7ad23caeb2c9e5adc7a3ee8e4881d40c_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-02_7ad23caeb2c9e5adc7a3ee8e4881d40c_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1904
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\lmuvcmec\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3044
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ygvzmktt.exe" C:\Windows\SysWOW64\lmuvcmec\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1708
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create lmuvcmec binPath= "C:\Windows\SysWOW64\lmuvcmec\ygvzmktt.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_7ad23caeb2c9e5adc7a3ee8e4881d40c_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 lmuvcmec "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2432
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start lmuvcmec
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2740
- 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:2864

C:\Windows\SysWOW64\lmuvcmec\ygvzmktt.exe
C:\Windows\SysWOW64\lmuvcmec\ygvzmktt.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_7ad23caeb2c9e5adc7a3ee8e4881d40c_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2876
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2688

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\ygvzmktt.exe

Filesize
13.9MB

MD5
c301fdcca875c258a5d2b51011d17610

SHA1
87d4c08348285d7d0326a925acdc73e32d1371bf

SHA256
899fb440e5036873e8e6ec21149f796478c7c1f73d254c5120a2761a09ead844

SHA512
16b9e5fb67b9b49df9252f91b740e4d69f0f1c98cb0b01bb7156e178031829154a45a5afa127449e37958d534e92f77d38827b2d3c84bc31c1efe7c5c9e3af32

Download Submit
memory/1904-1-0x00000000002F0000-0x00000000003F0000-memory.dmp

Filesize
1024KB

Download
memory/1904-3-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1904-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1904-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1904-15-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2688-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2688-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2688-8-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2688-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2688-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2876-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads