tofsee | 7eec0b84366d92033888fb9def21b46b1d0351de031703e35cc182529682f27a

Analysis

max time kernel
146s
max time network
123s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
01-02-2025 20:44

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General

Target

2025-02-01_e72355b4a0464e46c38ca6b00eb1c8e8_mafia.exe
Size

12.4MB
MD5

e72355b4a0464e46c38ca6b00eb1c8e8
SHA1

73f4fda83748ad83cb959734b1efb871f990289b
SHA256

7eec0b84366d92033888fb9def21b46b1d0351de031703e35cc182529682f27a
SHA512

0080f7c14d7582f89555ecb28d7d8e2eb7064048db8c356429b4972d4368d600552bd8108794f999f5ea962e996a432d373367aadfa84a300404f4e61c5f44d9
SSDEEP

24576:uEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZj:Hfot

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\topdgtam = "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
2792	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\topdgtam\ImagePath = "C:\\Windows\\SysWOW64\\topdgtam\\rqegursk.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2828	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3036	rqegursk.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3036 set thread context of 2828	3036	rqegursk.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
1192	sc.exe
2776	sc.exe
2876	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	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_e72355b4a0464e46c38ca6b00eb1c8e8_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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rqegursk.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2396 wrote to memory of 2168	2396	2025-02-01_e72355b4a0464e46c38ca6b00eb1c8e8_mafia.exe	29
PID 2396 wrote to memory of 2168	2396	2025-02-01_e72355b4a0464e46c38ca6b00eb1c8e8_mafia.exe	29
PID 2396 wrote to memory of 2168	2396	2025-02-01_e72355b4a0464e46c38ca6b00eb1c8e8_mafia.exe	29
PID 2396 wrote to memory of 2168	2396	2025-02-01_e72355b4a0464e46c38ca6b00eb1c8e8_mafia.exe	29
PID 2396 wrote to memory of 1216	2396	2025-02-01_e72355b4a0464e46c38ca6b00eb1c8e8_mafia.exe	31
PID 2396 wrote to memory of 1216	2396	2025-02-01_e72355b4a0464e46c38ca6b00eb1c8e8_mafia.exe	31
PID 2396 wrote to memory of 1216	2396	2025-02-01_e72355b4a0464e46c38ca6b00eb1c8e8_mafia.exe	31
PID 2396 wrote to memory of 1216	2396	2025-02-01_e72355b4a0464e46c38ca6b00eb1c8e8_mafia.exe	31
PID 2396 wrote to memory of 1192	2396	2025-02-01_e72355b4a0464e46c38ca6b00eb1c8e8_mafia.exe	33
PID 2396 wrote to memory of 1192	2396	2025-02-01_e72355b4a0464e46c38ca6b00eb1c8e8_mafia.exe	33
PID 2396 wrote to memory of 1192	2396	2025-02-01_e72355b4a0464e46c38ca6b00eb1c8e8_mafia.exe	33
PID 2396 wrote to memory of 1192	2396	2025-02-01_e72355b4a0464e46c38ca6b00eb1c8e8_mafia.exe	33
PID 2396 wrote to memory of 2776	2396	2025-02-01_e72355b4a0464e46c38ca6b00eb1c8e8_mafia.exe	35
PID 2396 wrote to memory of 2776	2396	2025-02-01_e72355b4a0464e46c38ca6b00eb1c8e8_mafia.exe	35
PID 2396 wrote to memory of 2776	2396	2025-02-01_e72355b4a0464e46c38ca6b00eb1c8e8_mafia.exe	35
PID 2396 wrote to memory of 2776	2396	2025-02-01_e72355b4a0464e46c38ca6b00eb1c8e8_mafia.exe	35
PID 2396 wrote to memory of 2876	2396	2025-02-01_e72355b4a0464e46c38ca6b00eb1c8e8_mafia.exe	37
PID 2396 wrote to memory of 2876	2396	2025-02-01_e72355b4a0464e46c38ca6b00eb1c8e8_mafia.exe	37
PID 2396 wrote to memory of 2876	2396	2025-02-01_e72355b4a0464e46c38ca6b00eb1c8e8_mafia.exe	37
PID 2396 wrote to memory of 2876	2396	2025-02-01_e72355b4a0464e46c38ca6b00eb1c8e8_mafia.exe	37
PID 2396 wrote to memory of 2792	2396	2025-02-01_e72355b4a0464e46c38ca6b00eb1c8e8_mafia.exe	40
PID 2396 wrote to memory of 2792	2396	2025-02-01_e72355b4a0464e46c38ca6b00eb1c8e8_mafia.exe	40
PID 2396 wrote to memory of 2792	2396	2025-02-01_e72355b4a0464e46c38ca6b00eb1c8e8_mafia.exe	40
PID 2396 wrote to memory of 2792	2396	2025-02-01_e72355b4a0464e46c38ca6b00eb1c8e8_mafia.exe	40
PID 3036 wrote to memory of 2828	3036	rqegursk.exe	42
PID 3036 wrote to memory of 2828	3036	rqegursk.exe	42
PID 3036 wrote to memory of 2828	3036	rqegursk.exe	42
PID 3036 wrote to memory of 2828	3036	rqegursk.exe	42
PID 3036 wrote to memory of 2828	3036	rqegursk.exe	42
PID 3036 wrote to memory of 2828	3036	rqegursk.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-02-01_e72355b4a0464e46c38ca6b00eb1c8e8_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_e72355b4a0464e46c38ca6b00eb1c8e8_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2396
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\topdgtam\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2168
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rqegursk.exe" C:\Windows\SysWOW64\topdgtam\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1216
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create topdgtam binPath= "C:\Windows\SysWOW64\topdgtam\rqegursk.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_e72355b4a0464e46c38ca6b00eb1c8e8_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1192
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description topdgtam "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2776
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start topdgtam
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2876
- 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:2792

C:\Windows\SysWOW64\topdgtam\rqegursk.exe
C:\Windows\SysWOW64\topdgtam\rqegursk.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_e72355b4a0464e46c38ca6b00eb1c8e8_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3036
- 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:2828

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\rqegursk.exe

Filesize
11.3MB

MD5
f862693c9ac97ab804ce7f35e3f9df23

SHA1
936961071b41fa08c7cf298022f840205a301d8c

SHA256
2183665069d9e35c4397b17dc82e6f90f619435585ddff10327090eb1433d432

SHA512
8d0cb169d9eb916968349aea06bdffcceb28278f9f95fce3a5786f0890e17137397aeb7d77fb6fdddd929c2f1cee8dd7954ff92c6eea708c9904fc92738b3f53

Download Submit
memory/2396-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2396-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2396-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2396-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2396-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2396-1-0x00000000002D0000-0x00000000003D0000-memory.dmp

Filesize
1024KB

Download
memory/2828-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2828-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2828-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2828-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2828-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3036-17-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads