tofsee | 343301024c725ec3197fabb64ab1877d8cedaa8871f430f091f379388675726d

Analysis

max time kernel
144s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
30-12-2024 19:54

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General

Target

2024-12-30_1f97aaa6dea7299daa8396d2c89e0f0d_mafia.exe
Size

10.7MB
MD5

1f97aaa6dea7299daa8396d2c89e0f0d
SHA1

f41b886ac1b6811d7fd52a3a621f8e5ca199dafb
SHA256

343301024c725ec3197fabb64ab1877d8cedaa8871f430f091f379388675726d
SHA512

4fdfb132a2031daed6c8550e235c281da2940d51aef2f566329582574b19c56d493042aff8f0a452eb238af7aa9a3400dd436080108253764953ee0d68e35e0f
SSDEEP

3072:qLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:TOMdRQr7OB0ypmMXnl8XEPM3noSWOC

Score

10^/10

tofsee discovery evasion 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

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\mwkbydjl = "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

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2568	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\mwkbydjl\ImagePath = "C:\\Windows\\SysWOW64\\mwkbydjl\\bdwhowka.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2892	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2512	bdwhowka.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2512 set thread context of 2892	2512	bdwhowka.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2864	sc.exe
2284	sc.exe
2748	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-30_1f97aaa6dea7299daa8396d2c89e0f0d_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bdwhowka.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2400 wrote to memory of 876	2400	2024-12-30_1f97aaa6dea7299daa8396d2c89e0f0d_mafia.exe	30
PID 2400 wrote to memory of 876	2400	2024-12-30_1f97aaa6dea7299daa8396d2c89e0f0d_mafia.exe	30
PID 2400 wrote to memory of 876	2400	2024-12-30_1f97aaa6dea7299daa8396d2c89e0f0d_mafia.exe	30
PID 2400 wrote to memory of 876	2400	2024-12-30_1f97aaa6dea7299daa8396d2c89e0f0d_mafia.exe	30
PID 2400 wrote to memory of 1036	2400	2024-12-30_1f97aaa6dea7299daa8396d2c89e0f0d_mafia.exe	32
PID 2400 wrote to memory of 1036	2400	2024-12-30_1f97aaa6dea7299daa8396d2c89e0f0d_mafia.exe	32
PID 2400 wrote to memory of 1036	2400	2024-12-30_1f97aaa6dea7299daa8396d2c89e0f0d_mafia.exe	32
PID 2400 wrote to memory of 1036	2400	2024-12-30_1f97aaa6dea7299daa8396d2c89e0f0d_mafia.exe	32
PID 2400 wrote to memory of 2284	2400	2024-12-30_1f97aaa6dea7299daa8396d2c89e0f0d_mafia.exe	34
PID 2400 wrote to memory of 2284	2400	2024-12-30_1f97aaa6dea7299daa8396d2c89e0f0d_mafia.exe	34
PID 2400 wrote to memory of 2284	2400	2024-12-30_1f97aaa6dea7299daa8396d2c89e0f0d_mafia.exe	34
PID 2400 wrote to memory of 2284	2400	2024-12-30_1f97aaa6dea7299daa8396d2c89e0f0d_mafia.exe	34
PID 2400 wrote to memory of 2748	2400	2024-12-30_1f97aaa6dea7299daa8396d2c89e0f0d_mafia.exe	36
PID 2400 wrote to memory of 2748	2400	2024-12-30_1f97aaa6dea7299daa8396d2c89e0f0d_mafia.exe	36
PID 2400 wrote to memory of 2748	2400	2024-12-30_1f97aaa6dea7299daa8396d2c89e0f0d_mafia.exe	36
PID 2400 wrote to memory of 2748	2400	2024-12-30_1f97aaa6dea7299daa8396d2c89e0f0d_mafia.exe	36
PID 2400 wrote to memory of 2864	2400	2024-12-30_1f97aaa6dea7299daa8396d2c89e0f0d_mafia.exe	38
PID 2400 wrote to memory of 2864	2400	2024-12-30_1f97aaa6dea7299daa8396d2c89e0f0d_mafia.exe	38
PID 2400 wrote to memory of 2864	2400	2024-12-30_1f97aaa6dea7299daa8396d2c89e0f0d_mafia.exe	38
PID 2400 wrote to memory of 2864	2400	2024-12-30_1f97aaa6dea7299daa8396d2c89e0f0d_mafia.exe	38
PID 2512 wrote to memory of 2892	2512	bdwhowka.exe	41
PID 2512 wrote to memory of 2892	2512	bdwhowka.exe	41
PID 2512 wrote to memory of 2892	2512	bdwhowka.exe	41
PID 2512 wrote to memory of 2892	2512	bdwhowka.exe	41
PID 2512 wrote to memory of 2892	2512	bdwhowka.exe	41
PID 2512 wrote to memory of 2892	2512	bdwhowka.exe	41
PID 2400 wrote to memory of 2568	2400	2024-12-30_1f97aaa6dea7299daa8396d2c89e0f0d_mafia.exe	42
PID 2400 wrote to memory of 2568	2400	2024-12-30_1f97aaa6dea7299daa8396d2c89e0f0d_mafia.exe	42
PID 2400 wrote to memory of 2568	2400	2024-12-30_1f97aaa6dea7299daa8396d2c89e0f0d_mafia.exe	42
PID 2400 wrote to memory of 2568	2400	2024-12-30_1f97aaa6dea7299daa8396d2c89e0f0d_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2024-12-30_1f97aaa6dea7299daa8396d2c89e0f0d_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-30_1f97aaa6dea7299daa8396d2c89e0f0d_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2400
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mwkbydjl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:876
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bdwhowka.exe" C:\Windows\SysWOW64\mwkbydjl\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1036
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create mwkbydjl binPath= "C:\Windows\SysWOW64\mwkbydjl\bdwhowka.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-12-30_1f97aaa6dea7299daa8396d2c89e0f0d_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2284
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description mwkbydjl "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2748
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start mwkbydjl
  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:2568

C:\Windows\SysWOW64\mwkbydjl\bdwhowka.exe
C:\Windows\SysWOW64\mwkbydjl\bdwhowka.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-12-30_1f97aaa6dea7299daa8396d2c89e0f0d_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2512
- 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:2892

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\bdwhowka.exe

Filesize
14.1MB

MD5
b40d5eac7993e937961ab493ddc5aa75

SHA1
bd4b9f9121dbb0622ec6b8d9b47fe0280c484ad9

SHA256
b30758dbcf81301c8afd92869baad0af5897cccd89edff106ec48131355fdc1f

SHA512
9a3c6619051b0c5660f3b64beabf717833eea91acd5c705eba784f6bce91036cebf3179f6157b8bd21e9d7e4fbcc615bd1e63e950f358a0a1f6b27c0c5d09905

Download Submit
memory/2400-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2400-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2400-1-0x00000000005B0000-0x00000000006B0000-memory.dmp

Filesize
1024KB

Download
memory/2400-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2400-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2400-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2512-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2892-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2892-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2892-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2892-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2892-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads