tofsee | 582fb11b558a6b0c30e0ebd7720ea7ef81fda482eca6dd4349acc091952b15e3

Analysis

max time kernel
150s
max time network
117s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
26/01/2025, 18:40

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General

Target

2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe
Size

11.9MB
MD5

e94bdbbb0ab2eb91568ccf30149974e4
SHA1

bec6d399843fdd6032ab1654aecb7ae9420f3f36
SHA256

582fb11b558a6b0c30e0ebd7720ea7ef81fda482eca6dd4349acc091952b15e3
SHA512

98b9876571c37fa3b677e75ed64cbabe4c787da9a647d03c0eafd5cc0edcbc580551201e23d6043ae4705c0afdbe42d4ee7425ace6029e1bfa79f03c7aaf48c7
SSDEEP

3072:HLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:eOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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\zhzbbvby = "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
2768	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\zhzbbvby\ImagePath = "C:\\Windows\\SysWOW64\\zhzbbvby\\riqoytao.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2720	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2304	riqoytao.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2304 set thread context of 2720	2304	riqoytao.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2008	sc.exe
2508	sc.exe
2864	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	riqoytao.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	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.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	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1796 wrote to memory of 776	1796	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	30
PID 1796 wrote to memory of 776	1796	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	30
PID 1796 wrote to memory of 776	1796	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	30
PID 1796 wrote to memory of 776	1796	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	30
PID 1796 wrote to memory of 1264	1796	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	32
PID 1796 wrote to memory of 1264	1796	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	32
PID 1796 wrote to memory of 1264	1796	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	32
PID 1796 wrote to memory of 1264	1796	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	32
PID 1796 wrote to memory of 2008	1796	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	34
PID 1796 wrote to memory of 2008	1796	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	34
PID 1796 wrote to memory of 2008	1796	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	34
PID 1796 wrote to memory of 2008	1796	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	34
PID 1796 wrote to memory of 2508	1796	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	36
PID 1796 wrote to memory of 2508	1796	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	36
PID 1796 wrote to memory of 2508	1796	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	36
PID 1796 wrote to memory of 2508	1796	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	36
PID 1796 wrote to memory of 2864	1796	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	38
PID 1796 wrote to memory of 2864	1796	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	38
PID 1796 wrote to memory of 2864	1796	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	38
PID 1796 wrote to memory of 2864	1796	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	38
PID 2304 wrote to memory of 2720	2304	riqoytao.exe	41
PID 2304 wrote to memory of 2720	2304	riqoytao.exe	41
PID 2304 wrote to memory of 2720	2304	riqoytao.exe	41
PID 2304 wrote to memory of 2720	2304	riqoytao.exe	41
PID 2304 wrote to memory of 2720	2304	riqoytao.exe	41
PID 2304 wrote to memory of 2720	2304	riqoytao.exe	41
PID 1796 wrote to memory of 2768	1796	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	42
PID 1796 wrote to memory of 2768	1796	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	42
PID 1796 wrote to memory of 2768	1796	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	42
PID 1796 wrote to memory of 2768	1796	2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1796
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zhzbbvby\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:776
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\riqoytao.exe" C:\Windows\SysWOW64\zhzbbvby\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1264
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zhzbbvby binPath= "C:\Windows\SysWOW64\zhzbbvby\riqoytao.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2008
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zhzbbvby "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2508
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zhzbbvby
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2864
- 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:2768

C:\Windows\SysWOW64\zhzbbvby\riqoytao.exe
C:\Windows\SysWOW64\zhzbbvby\riqoytao.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-26_e94bdbbb0ab2eb91568ccf30149974e4_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2304
- 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\riqoytao.exe

Filesize
11.4MB

MD5
d51fd8e8f433d85d933e62990eb819af

SHA1
b49fe6b66d23ea9bd1424cb75bad42e66e02a7ae

SHA256
0a989e661758647c4077d778d2c874a24467659d28cde023807072cefa48e58e

SHA512
c785e80799987b71080c260bdc5d3a873cbd13c5241ebd914b6ff5af4d30a577976a7b63a1334035b6b2816998cd014e81260016b1141f81ece6143667481328

Download Submit
memory/1796-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1796-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1796-1-0x0000000000560000-0x0000000000660000-memory.dmp

Filesize
1024KB

Download
memory/1796-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1796-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1796-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2304-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2720-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2720-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2720-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2720-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2720-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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