tofsee | 69b8ce694676ef83dba8b43ad91865e1c1c1c65e940dc61c85f06620984e2b44

Analysis

max time kernel
147s
max time network
124s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
31-01-2025 22:31

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General

Target

2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe
Size

13.2MB
MD5

bad8fe193f8e3dfb32b36fb15db7847c
SHA1

b16ec95b086bde81dec539ccb047b116c4ef956e
SHA256

69b8ce694676ef83dba8b43ad91865e1c1c1c65e940dc61c85f06620984e2b44
SHA512

dc04ddd04e70220d7187a0d5771df3c3f855e79a78730d33e5537a6224ba49dcd6777499ab3a6049cb291a5868ede3204bbcbbc0fc6fa14300b3ed0534e55abc
SSDEEP

6144:QLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQI:FTYe+D2jFu+iZoUFhAz

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\fxtkkshe = "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
2820	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\fxtkkshe\ImagePath = "C:\\Windows\\SysWOW64\\fxtkkshe\\kwvjuemg.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2952	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2784	kwvjuemg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2784 set thread context of 2952	2784	kwvjuemg.exe	44

Launches sc.exe 3 IoCs

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

pid	Process
536	sc.exe
368	sc.exe
2152	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kwvjuemg.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	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.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 2324 wrote to memory of 2084	2324	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	30
PID 2324 wrote to memory of 2084	2324	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	30
PID 2324 wrote to memory of 2084	2324	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	30
PID 2324 wrote to memory of 2084	2324	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	30
PID 2324 wrote to memory of 2372	2324	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	32
PID 2324 wrote to memory of 2372	2324	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	32
PID 2324 wrote to memory of 2372	2324	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	32
PID 2324 wrote to memory of 2372	2324	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	32
PID 2324 wrote to memory of 536	2324	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	34
PID 2324 wrote to memory of 536	2324	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	34
PID 2324 wrote to memory of 536	2324	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	34
PID 2324 wrote to memory of 536	2324	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	34
PID 2324 wrote to memory of 368	2324	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	36
PID 2324 wrote to memory of 368	2324	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	36
PID 2324 wrote to memory of 368	2324	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	36
PID 2324 wrote to memory of 368	2324	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	36
PID 2324 wrote to memory of 2152	2324	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	38
PID 2324 wrote to memory of 2152	2324	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	38
PID 2324 wrote to memory of 2152	2324	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	38
PID 2324 wrote to memory of 2152	2324	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	38
PID 2324 wrote to memory of 2820	2324	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	40
PID 2324 wrote to memory of 2820	2324	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	40
PID 2324 wrote to memory of 2820	2324	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	40
PID 2324 wrote to memory of 2820	2324	2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe	40
PID 2784 wrote to memory of 2952	2784	kwvjuemg.exe	44
PID 2784 wrote to memory of 2952	2784	kwvjuemg.exe	44
PID 2784 wrote to memory of 2952	2784	kwvjuemg.exe	44
PID 2784 wrote to memory of 2952	2784	kwvjuemg.exe	44
PID 2784 wrote to memory of 2952	2784	kwvjuemg.exe	44
PID 2784 wrote to memory of 2952	2784	kwvjuemg.exe	44

C:\Users\Admin\AppData\Local\Temp\2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2324
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fxtkkshe\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2084
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kwvjuemg.exe" C:\Windows\SysWOW64\fxtkkshe\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2372
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fxtkkshe binPath= "C:\Windows\SysWOW64\fxtkkshe\kwvjuemg.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:536
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fxtkkshe "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:368
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fxtkkshe
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2152
- 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:2820

C:\Windows\SysWOW64\fxtkkshe\kwvjuemg.exe
C:\Windows\SysWOW64\fxtkkshe\kwvjuemg.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_bad8fe193f8e3dfb32b36fb15db7847c_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2784
- 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:2952

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\kwvjuemg.exe

Filesize
11.6MB

MD5
5e84bdd4aca92c9fa57649beb97b9f24

SHA1
8faa34e5e92e510f299086fb62e96ec2000d8a22

SHA256
8f4c8db2727c95d94f9532bee614e5f370a7a67faddc086e0a60f3919a0f4c03

SHA512
fa032b51c1bf420090447139e703ccf92d72c38c808f1721e8777b9cbcdda04556744243bcf255ba9503023557bae626f6468cc29e7e426eb7cb8201f7a135a3

Download Submit
memory/2324-6-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2324-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2324-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2324-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2324-7-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2324-1-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/2784-17-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2952-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2952-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2952-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2952-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2952-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads