tofsee | 0feb3db1f329e0a0a248026b03df0bc76f462d51d13ff1ddd0069d189c3cd7e8

General

Target

2024-05-30_d5163a500b24c2d07720cb4019dd3923_mafia.exe
Size

12.2MB
MD5

d5163a500b24c2d07720cb4019dd3923
SHA1

fc869db383392a90e85191049766eeb046767c10
SHA256

0feb3db1f329e0a0a248026b03df0bc76f462d51d13ff1ddd0069d189c3cd7e8
SHA512

98288e9c075089c90931e65ae8818aa033e6b3957dd445778e991a0ab6b7abc1ac498fa308cb257878300ff406dc8818937c6a28c95283a3cea36087969a1c85
SSDEEP

6144:JqXbY+SAjhUEzmPy0jhM7o8cMp/sP9gdiw1fagj1x2Eqqqqqqqqqqqqqqqqqqqqv:JqLY+4oAfj2o8X/U9gdjj

Score

10^/10

tofsee evasion execution persistence trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\iesgzfga = "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

Processes:

netsh.exe

pid process

2704 netsh.exe

pid	process
2704	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\iesgzfga\ImagePath = "C:\\Windows\\SysWOW64\\iesgzfga\\mkrnmvtk.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2852 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

mkrnmvtk.exe

pid process

2828 mkrnmvtk.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

mkrnmvtk.exe

description pid process target process

PID 2828 set thread context of 2852 2828 mkrnmvtk.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

2776 sc.exe
2824 sc.exe
1984 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2852	svchost.exe

pid	process
2828	mkrnmvtk.exe

description	pid	process	target process
PID 2828 set thread context of 2852	2828	mkrnmvtk.exe	svchost.exe

pid	process
2776	sc.exe
2824	sc.exe
1984	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

2024-05-30_d5163a500b24c2d07720cb4019dd3923_mafia.exemkrnmvtk.exe

description	pid	process	target process
PID 1044 wrote to memory of 2944	1044	2024-05-30_d5163a500b24c2d07720cb4019dd3923_mafia.exe	cmd.exe
PID 1044 wrote to memory of 2944	1044	2024-05-30_d5163a500b24c2d07720cb4019dd3923_mafia.exe	cmd.exe
PID 1044 wrote to memory of 2944	1044	2024-05-30_d5163a500b24c2d07720cb4019dd3923_mafia.exe	cmd.exe
PID 1044 wrote to memory of 2944	1044	2024-05-30_d5163a500b24c2d07720cb4019dd3923_mafia.exe	cmd.exe
PID 1044 wrote to memory of 2148	1044	2024-05-30_d5163a500b24c2d07720cb4019dd3923_mafia.exe	cmd.exe
PID 1044 wrote to memory of 2148	1044	2024-05-30_d5163a500b24c2d07720cb4019dd3923_mafia.exe	cmd.exe
PID 1044 wrote to memory of 2148	1044	2024-05-30_d5163a500b24c2d07720cb4019dd3923_mafia.exe	cmd.exe
PID 1044 wrote to memory of 2148	1044	2024-05-30_d5163a500b24c2d07720cb4019dd3923_mafia.exe	cmd.exe
PID 1044 wrote to memory of 2776	1044	2024-05-30_d5163a500b24c2d07720cb4019dd3923_mafia.exe	sc.exe
PID 1044 wrote to memory of 2776	1044	2024-05-30_d5163a500b24c2d07720cb4019dd3923_mafia.exe	sc.exe
PID 1044 wrote to memory of 2776	1044	2024-05-30_d5163a500b24c2d07720cb4019dd3923_mafia.exe	sc.exe
PID 1044 wrote to memory of 2776	1044	2024-05-30_d5163a500b24c2d07720cb4019dd3923_mafia.exe	sc.exe
PID 1044 wrote to memory of 2824	1044	2024-05-30_d5163a500b24c2d07720cb4019dd3923_mafia.exe	sc.exe
PID 1044 wrote to memory of 2824	1044	2024-05-30_d5163a500b24c2d07720cb4019dd3923_mafia.exe	sc.exe
PID 1044 wrote to memory of 2824	1044	2024-05-30_d5163a500b24c2d07720cb4019dd3923_mafia.exe	sc.exe
PID 1044 wrote to memory of 2824	1044	2024-05-30_d5163a500b24c2d07720cb4019dd3923_mafia.exe	sc.exe
PID 1044 wrote to memory of 1984	1044	2024-05-30_d5163a500b24c2d07720cb4019dd3923_mafia.exe	sc.exe
PID 1044 wrote to memory of 1984	1044	2024-05-30_d5163a500b24c2d07720cb4019dd3923_mafia.exe	sc.exe
PID 1044 wrote to memory of 1984	1044	2024-05-30_d5163a500b24c2d07720cb4019dd3923_mafia.exe	sc.exe
PID 1044 wrote to memory of 1984	1044	2024-05-30_d5163a500b24c2d07720cb4019dd3923_mafia.exe	sc.exe
PID 2828 wrote to memory of 2852	2828	mkrnmvtk.exe	svchost.exe
PID 2828 wrote to memory of 2852	2828	mkrnmvtk.exe	svchost.exe
PID 2828 wrote to memory of 2852	2828	mkrnmvtk.exe	svchost.exe
PID 2828 wrote to memory of 2852	2828	mkrnmvtk.exe	svchost.exe
PID 2828 wrote to memory of 2852	2828	mkrnmvtk.exe	svchost.exe
PID 2828 wrote to memory of 2852	2828	mkrnmvtk.exe	svchost.exe
PID 1044 wrote to memory of 2704	1044	2024-05-30_d5163a500b24c2d07720cb4019dd3923_mafia.exe	netsh.exe
PID 1044 wrote to memory of 2704	1044	2024-05-30_d5163a500b24c2d07720cb4019dd3923_mafia.exe	netsh.exe
PID 1044 wrote to memory of 2704	1044	2024-05-30_d5163a500b24c2d07720cb4019dd3923_mafia.exe	netsh.exe
PID 1044 wrote to memory of 2704	1044	2024-05-30_d5163a500b24c2d07720cb4019dd3923_mafia.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-30_d5163a500b24c2d07720cb4019dd3923_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-30_d5163a500b24c2d07720cb4019dd3923_mafia.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1044

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\iesgzfga\
2⤵
PID:2944

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mkrnmvtk.exe" C:\Windows\SysWOW64\iesgzfga\
2⤵
PID:2148

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create iesgzfga binPath= "C:\Windows\SysWOW64\iesgzfga\mkrnmvtk.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-05-30_d5163a500b24c2d07720cb4019dd3923_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2776

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description iesgzfga "wifi internet conection"
2⤵
- Launches sc.exe
PID:2824

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start iesgzfga
2⤵
- Launches sc.exe
PID:1984

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
PID:2704

C:\Windows\SysWOW64\iesgzfga\mkrnmvtk.exe
C:\Windows\SysWOW64\iesgzfga\mkrnmvtk.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-05-30_d5163a500b24c2d07720cb4019dd3923_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2828

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
PID:2852

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Impair Defenses

2

T1562

Disable or Modify Tools

1

T1562.001

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\mkrnmvtk.exe
Filesize
14.6MB

MD5
4d24e87327c64908cdf290fed36096f0

SHA1
a855d12c9cbfc14b5466e12620cf84230ec0e153

SHA256
ae469f3b3d8c1eef67afda8d74b105e74ada311f39698fd56555ee7066dab9a8

SHA512
ca1136ec366450b82c9e7d0b3eafe3ce76ebd1dca0d77067bd0589fcf069bb5a8e980e131a0fc7a0e938880c3f368209763650be9f277b499980bcb324ef8141

Download Submit
memory/1044-1-0x0000000000620000-0x0000000000720000-memory.dmp

Filesize
1024KB

Download
memory/1044-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1044-13-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/1044-14-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2828-11-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/2852-7-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2852-10-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2852-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2852-15-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2852-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads