tofsee | ebc9363be598521bca4653506ed233ea8f7a52a0c7ed4a121130bbc1a1f27e2f

Analysis

max time kernel
148s
max time network
154s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
21-12-2024 16:13

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General

Target

ebc9363be598521bca4653506ed233ea8f7a52a0c7ed4a121130bbc1a1f27e2f.exe
Size

291KB
MD5

2a19f07c0c822efed923fccc2fbfd3ee
SHA1

21892b14eae94d9efc116d4c26179ea7259736e7
SHA256

ebc9363be598521bca4653506ed233ea8f7a52a0c7ed4a121130bbc1a1f27e2f
SHA512

421190d41cc983b0e7de72b8e60460dbb9ad8b67341b17a711738befa8a443e19aee0c982d7541ae1a3265dd0f86203ab1287f48320bc0b95be06a100a1be682
SSDEEP

6144:WHWNUXjubm55cP8kiqiSXuZet0ySbrH9my8p36f:6XV68kBiSXuZet0ySbrf8p3W

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

quadoil.ru

lakeflex.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\fotjclwe = "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
2480	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\fotjclwe\ImagePath = "C:\\Windows\\SysWOW64\\fotjclwe\\jbtazqbi.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2864	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2152	jbtazqbi.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2152 set thread context of 2864	2152	jbtazqbi.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2936	sc.exe
2964	sc.exe
3064	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ebc9363be598521bca4653506ed233ea8f7a52a0c7ed4a121130bbc1a1f27e2f.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jbtazqbi.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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2116 wrote to memory of 1236	2116	ebc9363be598521bca4653506ed233ea8f7a52a0c7ed4a121130bbc1a1f27e2f.exe	30
PID 2116 wrote to memory of 1236	2116	ebc9363be598521bca4653506ed233ea8f7a52a0c7ed4a121130bbc1a1f27e2f.exe	30
PID 2116 wrote to memory of 1236	2116	ebc9363be598521bca4653506ed233ea8f7a52a0c7ed4a121130bbc1a1f27e2f.exe	30
PID 2116 wrote to memory of 1236	2116	ebc9363be598521bca4653506ed233ea8f7a52a0c7ed4a121130bbc1a1f27e2f.exe	30
PID 2116 wrote to memory of 1224	2116	ebc9363be598521bca4653506ed233ea8f7a52a0c7ed4a121130bbc1a1f27e2f.exe	32
PID 2116 wrote to memory of 1224	2116	ebc9363be598521bca4653506ed233ea8f7a52a0c7ed4a121130bbc1a1f27e2f.exe	32
PID 2116 wrote to memory of 1224	2116	ebc9363be598521bca4653506ed233ea8f7a52a0c7ed4a121130bbc1a1f27e2f.exe	32
PID 2116 wrote to memory of 1224	2116	ebc9363be598521bca4653506ed233ea8f7a52a0c7ed4a121130bbc1a1f27e2f.exe	32
PID 2116 wrote to memory of 2936	2116	ebc9363be598521bca4653506ed233ea8f7a52a0c7ed4a121130bbc1a1f27e2f.exe	34
PID 2116 wrote to memory of 2936	2116	ebc9363be598521bca4653506ed233ea8f7a52a0c7ed4a121130bbc1a1f27e2f.exe	34
PID 2116 wrote to memory of 2936	2116	ebc9363be598521bca4653506ed233ea8f7a52a0c7ed4a121130bbc1a1f27e2f.exe	34
PID 2116 wrote to memory of 2936	2116	ebc9363be598521bca4653506ed233ea8f7a52a0c7ed4a121130bbc1a1f27e2f.exe	34
PID 2116 wrote to memory of 2964	2116	ebc9363be598521bca4653506ed233ea8f7a52a0c7ed4a121130bbc1a1f27e2f.exe	36
PID 2116 wrote to memory of 2964	2116	ebc9363be598521bca4653506ed233ea8f7a52a0c7ed4a121130bbc1a1f27e2f.exe	36
PID 2116 wrote to memory of 2964	2116	ebc9363be598521bca4653506ed233ea8f7a52a0c7ed4a121130bbc1a1f27e2f.exe	36
PID 2116 wrote to memory of 2964	2116	ebc9363be598521bca4653506ed233ea8f7a52a0c7ed4a121130bbc1a1f27e2f.exe	36
PID 2116 wrote to memory of 3064	2116	ebc9363be598521bca4653506ed233ea8f7a52a0c7ed4a121130bbc1a1f27e2f.exe	38
PID 2116 wrote to memory of 3064	2116	ebc9363be598521bca4653506ed233ea8f7a52a0c7ed4a121130bbc1a1f27e2f.exe	38
PID 2116 wrote to memory of 3064	2116	ebc9363be598521bca4653506ed233ea8f7a52a0c7ed4a121130bbc1a1f27e2f.exe	38
PID 2116 wrote to memory of 3064	2116	ebc9363be598521bca4653506ed233ea8f7a52a0c7ed4a121130bbc1a1f27e2f.exe	38
PID 2116 wrote to memory of 2480	2116	ebc9363be598521bca4653506ed233ea8f7a52a0c7ed4a121130bbc1a1f27e2f.exe	41
PID 2116 wrote to memory of 2480	2116	ebc9363be598521bca4653506ed233ea8f7a52a0c7ed4a121130bbc1a1f27e2f.exe	41
PID 2116 wrote to memory of 2480	2116	ebc9363be598521bca4653506ed233ea8f7a52a0c7ed4a121130bbc1a1f27e2f.exe	41
PID 2116 wrote to memory of 2480	2116	ebc9363be598521bca4653506ed233ea8f7a52a0c7ed4a121130bbc1a1f27e2f.exe	41
PID 2152 wrote to memory of 2864	2152	jbtazqbi.exe	43
PID 2152 wrote to memory of 2864	2152	jbtazqbi.exe	43
PID 2152 wrote to memory of 2864	2152	jbtazqbi.exe	43
PID 2152 wrote to memory of 2864	2152	jbtazqbi.exe	43
PID 2152 wrote to memory of 2864	2152	jbtazqbi.exe	43
PID 2152 wrote to memory of 2864	2152	jbtazqbi.exe	43

C:\Users\Admin\AppData\Local\Temp\ebc9363be598521bca4653506ed233ea8f7a52a0c7ed4a121130bbc1a1f27e2f.exe
"C:\Users\Admin\AppData\Local\Temp\ebc9363be598521bca4653506ed233ea8f7a52a0c7ed4a121130bbc1a1f27e2f.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2116
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fotjclwe\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1236
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jbtazqbi.exe" C:\Windows\SysWOW64\fotjclwe\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1224
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create fotjclwe binPath= "C:\Windows\SysWOW64\fotjclwe\jbtazqbi.exe /d\"C:\Users\Admin\AppData\Local\Temp\ebc9363be598521bca4653506ed233ea8f7a52a0c7ed4a121130bbc1a1f27e2f.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2936
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description fotjclwe "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2964
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start fotjclwe
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3064
- 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:2480

C:\Windows\SysWOW64\fotjclwe\jbtazqbi.exe
C:\Windows\SysWOW64\fotjclwe\jbtazqbi.exe /d"C:\Users\Admin\AppData\Local\Temp\ebc9363be598521bca4653506ed233ea8f7a52a0c7ed4a121130bbc1a1f27e2f.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2152
- 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:2864

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\jbtazqbi.exe

Filesize
14.3MB

MD5
2b29c97568b52b6dd63b7afdf357aed3

SHA1
dab2850aba35aa92ae086c17c519e8dede0d580b

SHA256
c8c2258fccdf147c4a999078e778cad33f9f3e3c1378b540bde0907fab9559c5

SHA512
f7610e3451122372436ed9f4441fbbd4b8e17e007c9e2d30598fc709c9e0d45def91b770f6c3aaa594a654488c78626f39c71b4f8fd327b623205a712693420c

Download Submit
memory/2116-7-0x0000000000400000-0x0000000002B41000-memory.dmp

Filesize
39.3MB

Download
memory/2116-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2116-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2116-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2116-8-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2116-1-0x0000000002CD0000-0x0000000002DD0000-memory.dmp

Filesize
1024KB

Download
memory/2152-17-0x0000000000400000-0x0000000002B41000-memory.dmp

Filesize
39.3MB

Download
memory/2864-11-0x0000000000120000-0x0000000000135000-memory.dmp

Filesize
84KB

Download
memory/2864-14-0x0000000000120000-0x0000000000135000-memory.dmp

Filesize
84KB

Download
memory/2864-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2864-16-0x0000000000120000-0x0000000000135000-memory.dmp

Filesize
84KB

Download
memory/2864-18-0x0000000000120000-0x0000000000135000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads