tofsee | 4a6a65e02edd13135e496081f0b9807ef98b1dfef11aee8d0d7105899edfa626

Analysis

max time kernel
147s
max time network
123s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
03-02-2025 17:45

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General

Target

2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe
Size

11.5MB
MD5

47ed08a16022179f606ebc1e85a106a2
SHA1

ef06e1bfdf17852a217860366ebea4250d5d5b10
SHA256

4a6a65e02edd13135e496081f0b9807ef98b1dfef11aee8d0d7105899edfa626
SHA512

09e07353cef3bf3384818c7db41dc1cb32e59b191c1d5be39b62bfa44f3e70aadf6076edf75bd0f884dcc6b23d8705b2633d889e674e9fd78dfe20b7b5d04d4e
SSDEEP

3072:mLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/i:POMdRQr7OB0ypmMXnl8XEPM3noSWOCb

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\gcsnshzu = "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
3048	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\gcsnshzu\ImagePath = "C:\\Windows\\SysWOW64\\gcsnshzu\\lngryguk.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2720	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2116	lngryguk.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2116 set thread context of 2720	2116	lngryguk.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2848	sc.exe
2896	sc.exe
2880	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lngryguk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-03_47ed08a16022179f606ebc1e85a106a2_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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 796 wrote to memory of 2924	796	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	29
PID 796 wrote to memory of 2924	796	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	29
PID 796 wrote to memory of 2924	796	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	29
PID 796 wrote to memory of 2924	796	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	29
PID 796 wrote to memory of 2380	796	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	31
PID 796 wrote to memory of 2380	796	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	31
PID 796 wrote to memory of 2380	796	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	31
PID 796 wrote to memory of 2380	796	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	31
PID 796 wrote to memory of 2896	796	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	33
PID 796 wrote to memory of 2896	796	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	33
PID 796 wrote to memory of 2896	796	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	33
PID 796 wrote to memory of 2896	796	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	33
PID 796 wrote to memory of 2880	796	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	35
PID 796 wrote to memory of 2880	796	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	35
PID 796 wrote to memory of 2880	796	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	35
PID 796 wrote to memory of 2880	796	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	35
PID 796 wrote to memory of 2848	796	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	37
PID 796 wrote to memory of 2848	796	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	37
PID 796 wrote to memory of 2848	796	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	37
PID 796 wrote to memory of 2848	796	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	37
PID 796 wrote to memory of 3048	796	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	39
PID 796 wrote to memory of 3048	796	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	39
PID 796 wrote to memory of 3048	796	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	39
PID 796 wrote to memory of 3048	796	2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe	39
PID 2116 wrote to memory of 2720	2116	lngryguk.exe	42
PID 2116 wrote to memory of 2720	2116	lngryguk.exe	42
PID 2116 wrote to memory of 2720	2116	lngryguk.exe	42
PID 2116 wrote to memory of 2720	2116	lngryguk.exe	42
PID 2116 wrote to memory of 2720	2116	lngryguk.exe	42
PID 2116 wrote to memory of 2720	2116	lngryguk.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:796
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gcsnshzu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2924
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\lngryguk.exe" C:\Windows\SysWOW64\gcsnshzu\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2380
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gcsnshzu binPath= "C:\Windows\SysWOW64\gcsnshzu\lngryguk.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2896
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gcsnshzu "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2880
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gcsnshzu
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2848
- 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:3048

C:\Windows\SysWOW64\gcsnshzu\lngryguk.exe
C:\Windows\SysWOW64\gcsnshzu\lngryguk.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-03_47ed08a16022179f606ebc1e85a106a2_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2116
- 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:2720

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\lngryguk.exe

Filesize
12.8MB

MD5
b59328389a56e84946885aed773e4262

SHA1
3462712a9435a0354652845510e168cf3fc0fc42

SHA256
d61b138bbeef2dea321f6ddaf094a4e3ed54d82c9197e5ddbf4376adb4c0e432

SHA512
aaabab2be2a34916c3ac4bd61598fd578c744920c8c61ec8cf3eef5bf751b9ab316d971249adc609480f41d3512b0948b62fe922f70f69bbb2ea712dd59ed6fe

Download Submit
memory/796-6-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/796-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/796-1-0x0000000000510000-0x0000000000610000-memory.dmp

Filesize
1024KB

Download
memory/796-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/796-7-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/796-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2116-17-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2720-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2720-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2720-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2720-16-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2720-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads