tofsee | d08f945304cbef1bc7e9b380f7321b692fd50fede584fbfc0829c13ae2eaedcc

General

Target

2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe
Size

13.3MB
MD5

8771bbe1870e3f195a9799d11d221dcc
SHA1

5ed9ae508451faa8f2c5dd3b9d7922a8ba27a74a
SHA256

d08f945304cbef1bc7e9b380f7321b692fd50fede584fbfc0829c13ae2eaedcc
SHA512

2d75d2ec904cc69bc46d1d096f8ca7accfa264f776f7358825e9921a26e36e2067c7d09b8e5a9a17bfe4785a00b1f7649295def0ae50d82685ca5be0092c505a
SSDEEP

6144:+yXxZTquqxpXAdbbiFyKq3nUOcWfMMMMMMMbt:+yXzN8pXAdbbyyZtZfMMMMMMMb

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation 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
Tofsee family
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

pid	Process
4516	netsh.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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe

Executes dropped EXE 1 IoCs

pid	Process
1780	gfvryuz.exe

Launches sc.exe 3 IoCs

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

pid	Process
3716	sc.exe
4384	sc.exe
1488	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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3368	4396	WerFault.exe	82

System Location Discovery: System Language Discovery 1 TTPs 7 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	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	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4396 wrote to memory of 2688	4396	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	96
PID 4396 wrote to memory of 2688	4396	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	96
PID 4396 wrote to memory of 2688	4396	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	96
PID 4396 wrote to memory of 4764	4396	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	98
PID 4396 wrote to memory of 4764	4396	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	98
PID 4396 wrote to memory of 4764	4396	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	98
PID 4396 wrote to memory of 3716	4396	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	100
PID 4396 wrote to memory of 3716	4396	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	100
PID 4396 wrote to memory of 3716	4396	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	100
PID 4396 wrote to memory of 4384	4396	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	102
PID 4396 wrote to memory of 4384	4396	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	102
PID 4396 wrote to memory of 4384	4396	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	102
PID 4396 wrote to memory of 1488	4396	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	104
PID 4396 wrote to memory of 1488	4396	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	104
PID 4396 wrote to memory of 1488	4396	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	104
PID 4396 wrote to memory of 4516	4396	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	107
PID 4396 wrote to memory of 4516	4396	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	107
PID 4396 wrote to memory of 4516	4396	2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe	107

C:\Users\Admin\AppData\Local\Temp\2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4396
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zgebouc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2688
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gfvryuz.exe" C:\Windows\SysWOW64\zgebouc\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4764
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zgebouc binPath= "C:\Windows\SysWOW64\zgebouc\gfvryuz.exe /d\"C:\Users\Admin\AppData\Local\Temp\2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3716
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zgebouc "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4384
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zgebouc
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1488
- 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:4516
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4396 -s 1180
  2⤵
  - Program crash
  PID:3368

C:\Windows\SysWOW64\zgebouc\gfvryuz.exe
C:\Windows\SysWOW64\zgebouc\gfvryuz.exe /d"C:\Users\Admin\AppData\Local\Temp\2024-12-01_8771bbe1870e3f195a9799d11d221dcc_karagany_mafia.exe"
1⤵
- Executes dropped EXE
PID:1780

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4396 -ip 4396
1⤵
PID:4512

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

1

T1562.004

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
11.1MB

MD5
7ef8dc48eb80780cb7ff2d94f4634995

SHA1
5b40e32db3571334acfa234ae118d189d426e7bd

SHA256
74f06d89568079c4564228b503fadd678c56f5045557d983df71b5055a1d4972

SHA512
3047ee8d792c685788c6486d5e97ac7a17db7c3b8a38317e5a3c8a2de27427d71eda3f64df7b5b437251777155b142b37c8898ffa23b2307a5cd3d011a12145f

Download Submit
memory/4396-1-0x00000000006D0000-0x00000000007D0000-memory.dmp

Filesize
1024KB

Download
memory/4396-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/4396-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4396-7-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4396-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4396-8-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads