tofsee | c187031a129855f7c175d53ea08fbc3251e4effd126ea02c1e10437e36b7d4f2

Analysis

max time kernel
149s
max time network
120s
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_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe
Size

11.2MB
MD5

eaf1c52f2fc5ea258111fcae8a188e94
SHA1

b1136f6d9f51748cd885f001d299227be1f8030a
SHA256

c187031a129855f7c175d53ea08fbc3251e4effd126ea02c1e10437e36b7d4f2
SHA512

fa5fbcba150d8286a33e03914e1467db04dee6e4a262f12433abbe8db0302e2c90c666cff6ee413208341b1992e5c4caff35b9db23172fa41d01e6b314bed569
SSDEEP

196608:0yXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX3:JXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXH

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\rklpbemg = "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
2620	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\rklpbemg\ImagePath = "C:\\Windows\\SysWOW64\\rklpbemg\\beketepv.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2764	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2816	beketepv.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2816 set thread context of 2764	2816	beketepv.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2116	sc.exe
2196	sc.exe
2072	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	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	beketepv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 768 wrote to memory of 3056	768	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	30
PID 768 wrote to memory of 3056	768	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	30
PID 768 wrote to memory of 3056	768	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	30
PID 768 wrote to memory of 3056	768	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	30
PID 768 wrote to memory of 2260	768	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	32
PID 768 wrote to memory of 2260	768	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	32
PID 768 wrote to memory of 2260	768	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	32
PID 768 wrote to memory of 2260	768	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	32
PID 768 wrote to memory of 2116	768	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	34
PID 768 wrote to memory of 2116	768	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	34
PID 768 wrote to memory of 2116	768	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	34
PID 768 wrote to memory of 2116	768	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	34
PID 768 wrote to memory of 2196	768	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	36
PID 768 wrote to memory of 2196	768	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	36
PID 768 wrote to memory of 2196	768	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	36
PID 768 wrote to memory of 2196	768	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	36
PID 768 wrote to memory of 2072	768	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	38
PID 768 wrote to memory of 2072	768	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	38
PID 768 wrote to memory of 2072	768	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	38
PID 768 wrote to memory of 2072	768	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	38
PID 2816 wrote to memory of 2764	2816	beketepv.exe	41
PID 2816 wrote to memory of 2764	2816	beketepv.exe	41
PID 2816 wrote to memory of 2764	2816	beketepv.exe	41
PID 2816 wrote to memory of 2764	2816	beketepv.exe	41
PID 2816 wrote to memory of 2764	2816	beketepv.exe	41
PID 2816 wrote to memory of 2764	2816	beketepv.exe	41
PID 768 wrote to memory of 2620	768	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	42
PID 768 wrote to memory of 2620	768	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	42
PID 768 wrote to memory of 2620	768	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	42
PID 768 wrote to memory of 2620	768	2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:768
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rklpbemg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3056
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\beketepv.exe" C:\Windows\SysWOW64\rklpbemg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2260
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rklpbemg binPath= "C:\Windows\SysWOW64\rklpbemg\beketepv.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2116
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rklpbemg "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2196
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rklpbemg
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2072
- 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:2620

C:\Windows\SysWOW64\rklpbemg\beketepv.exe
C:\Windows\SysWOW64\rklpbemg\beketepv.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-26_eaf1c52f2fc5ea258111fcae8a188e94_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2816
- 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:2764

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\beketepv.exe

Filesize
14.0MB

MD5
5c6b23b77311ac3b2d72c8051a6e6185

SHA1
02aa8f5cb81f50ff6c4948387a0dde472015c5fa

SHA256
c0fa156607674e18933a4932edd77bb4822847e1d1fec21fcf3c1abe17347777

SHA512
2bb2b7748398fc89824d17fd650d1dab7621f2ab43553d4afcd2ec687e86a65029b00fbec98f9fb62c057b69ce10e39ac353bcdd7432025184ef3adb145e0087

Download Submit
memory/768-1-0x00000000002F0000-0x00000000003F0000-memory.dmp

Filesize
1024KB

Download
memory/768-3-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/768-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/768-15-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/768-14-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2764-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2764-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2764-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2764-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2764-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2816-12-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads