tofsee | fb05f62c977f9e9fd53ea0a129de87e4e1052824735d38b02af55332cbedae29

General

Target

2024-05-23_5756d11a99b650ab3936a31831582bb6_mafia.exe
Size

12.6MB
MD5

5756d11a99b650ab3936a31831582bb6
SHA1

5ecaa88c1ec46d05b8e6a6423d1c553372035aad
SHA256

fb05f62c977f9e9fd53ea0a129de87e4e1052824735d38b02af55332cbedae29
SHA512

8b1a6fcc61d0e8db24032a68394b305c096b166948218a9b25f2103412f8845b429043156a4f524e90a8d81915e350bbe9245943e913e9bea8250802f8585f8a
SSDEEP

6144:DqXbY+SAjhUEzmPy0jhM7o8cMp/sP9gdiw1fagj1x2EqqqqqqqqqqqqqqqqqqqqD:DqLY+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
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

4720 netsh.exe

pid	process
4720	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\axwjyuhz\ImagePath = "C:\\Windows\\SysWOW64\\axwjyuhz\\kegdxtdi.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

2024-05-23_5756d11a99b650ab3936a31831582bb6_mafia.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\Control Panel\International\Geo\Nation	2024-05-23_5756d11a99b650ab3936a31831582bb6_mafia.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

4400 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

kegdxtdi.exe

pid process

4244 kegdxtdi.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

kegdxtdi.exe

description pid process target process

PID 4244 set thread context of 4400 4244 kegdxtdi.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

360 sc.exe
4716 sc.exe
1936 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
4400	svchost.exe

pid	process
4244	kegdxtdi.exe

description	pid	process	target process
PID 4244 set thread context of 4400	4244	kegdxtdi.exe	svchost.exe

pid	process
360	sc.exe
4716	sc.exe
1936	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

2024-05-23_5756d11a99b650ab3936a31831582bb6_mafia.exekegdxtdi.exe

description	pid	process	target process
PID 728 wrote to memory of 1320	728	2024-05-23_5756d11a99b650ab3936a31831582bb6_mafia.exe	cmd.exe
PID 728 wrote to memory of 1320	728	2024-05-23_5756d11a99b650ab3936a31831582bb6_mafia.exe	cmd.exe
PID 728 wrote to memory of 1320	728	2024-05-23_5756d11a99b650ab3936a31831582bb6_mafia.exe	cmd.exe
PID 728 wrote to memory of 2572	728	2024-05-23_5756d11a99b650ab3936a31831582bb6_mafia.exe	cmd.exe
PID 728 wrote to memory of 2572	728	2024-05-23_5756d11a99b650ab3936a31831582bb6_mafia.exe	cmd.exe
PID 728 wrote to memory of 2572	728	2024-05-23_5756d11a99b650ab3936a31831582bb6_mafia.exe	cmd.exe
PID 728 wrote to memory of 360	728	2024-05-23_5756d11a99b650ab3936a31831582bb6_mafia.exe	sc.exe
PID 728 wrote to memory of 360	728	2024-05-23_5756d11a99b650ab3936a31831582bb6_mafia.exe	sc.exe
PID 728 wrote to memory of 360	728	2024-05-23_5756d11a99b650ab3936a31831582bb6_mafia.exe	sc.exe
PID 728 wrote to memory of 4716	728	2024-05-23_5756d11a99b650ab3936a31831582bb6_mafia.exe	sc.exe
PID 728 wrote to memory of 4716	728	2024-05-23_5756d11a99b650ab3936a31831582bb6_mafia.exe	sc.exe
PID 728 wrote to memory of 4716	728	2024-05-23_5756d11a99b650ab3936a31831582bb6_mafia.exe	sc.exe
PID 728 wrote to memory of 1936	728	2024-05-23_5756d11a99b650ab3936a31831582bb6_mafia.exe	sc.exe
PID 728 wrote to memory of 1936	728	2024-05-23_5756d11a99b650ab3936a31831582bb6_mafia.exe	sc.exe
PID 728 wrote to memory of 1936	728	2024-05-23_5756d11a99b650ab3936a31831582bb6_mafia.exe	sc.exe
PID 728 wrote to memory of 4720	728	2024-05-23_5756d11a99b650ab3936a31831582bb6_mafia.exe	netsh.exe
PID 728 wrote to memory of 4720	728	2024-05-23_5756d11a99b650ab3936a31831582bb6_mafia.exe	netsh.exe
PID 728 wrote to memory of 4720	728	2024-05-23_5756d11a99b650ab3936a31831582bb6_mafia.exe	netsh.exe
PID 4244 wrote to memory of 4400	4244	kegdxtdi.exe	svchost.exe
PID 4244 wrote to memory of 4400	4244	kegdxtdi.exe	svchost.exe
PID 4244 wrote to memory of 4400	4244	kegdxtdi.exe	svchost.exe
PID 4244 wrote to memory of 4400	4244	kegdxtdi.exe	svchost.exe
PID 4244 wrote to memory of 4400	4244	kegdxtdi.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-23_5756d11a99b650ab3936a31831582bb6_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-23_5756d11a99b650ab3936a31831582bb6_mafia.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:728

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\axwjyuhz\
2⤵
PID:1320

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kegdxtdi.exe" C:\Windows\SysWOW64\axwjyuhz\
2⤵
PID:2572

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create axwjyuhz binPath= "C:\Windows\SysWOW64\axwjyuhz\kegdxtdi.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-05-23_5756d11a99b650ab3936a31831582bb6_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:360

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description axwjyuhz "wifi internet conection"
2⤵
- Launches sc.exe
PID:4716

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start axwjyuhz
2⤵
- Launches sc.exe
PID:1936

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:4720

C:\Windows\SysWOW64\axwjyuhz\kegdxtdi.exe
C:\Windows\SysWOW64\axwjyuhz\kegdxtdi.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-05-23_5756d11a99b650ab3936a31831582bb6_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4244

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:4400

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\kegdxtdi.exe

Filesize
12.6MB

MD5
b9718d960592d5593844f516f31dfb81

SHA1
461fbf17dca02fbfe3ac9b8634b8c315fb42e83d

SHA256
2d90c86ab09e28b2106b1c2b435254fa36e836cf0f395c176dfca0a2d4e8be85

SHA512
1ba60af3ad2c082b7fa7e9053aa98bcf5a5896378ce7fdcc1959e85d2a9066b4d5009f4237b38fa18537f2ef5868cc91a29060831695178111e10cd2b8bdc414

Download Submit
memory/728-1-0x00000000006F0000-0x00000000007F0000-memory.dmp

Filesize
1024KB

Download
memory/728-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/728-6-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/728-7-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4244-13-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/4244-10-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/4400-9-0x0000000000D80000-0x0000000000D95000-memory.dmp

Filesize
84KB

Download
memory/4400-12-0x0000000000D80000-0x0000000000D95000-memory.dmp

Filesize
84KB

Download
memory/4400-15-0x0000000000D80000-0x0000000000D95000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads