tofsee | 9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961c

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04-01-2025 15:35

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General

Target

9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe
Size

186KB
MD5

166c6ac61a149f3d397c5b54cdf611b0
SHA1

51ac25392072ea5bd9af9d6d227c0c13a5c7cfdc
SHA256

9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961c
SHA512

06d93630a7cf01e119c2cecf9c28de3f8e88b55f0afde93f2d6b8c536efd1ada9e9678aac34cb20c75911a3254ca3de174420a9ff45dbf2b4192c17d2b6ccfba
SSDEEP

3072:L7ojA4DTPi7C4QCDla6Iv0vdJxfez43Valiy1wC3pZa9uD6Vdyhk9:+A4DTPi7C4QBVviXVIQC3wVf

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\acjtikov = "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
2744	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\acjtikov\ImagePath = "C:\\Windows\\SysWOW64\\acjtikov\\sbksgygp.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2532	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2772	sbksgygp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2772 set thread context of 2532	2772	sbksgygp.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2476	sc.exe
2764	sc.exe
2900	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbksgygp.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2420 wrote to memory of 2172	2420	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	30
PID 2420 wrote to memory of 2172	2420	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	30
PID 2420 wrote to memory of 2172	2420	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	30
PID 2420 wrote to memory of 2172	2420	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	30
PID 2420 wrote to memory of 1948	2420	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	32
PID 2420 wrote to memory of 1948	2420	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	32
PID 2420 wrote to memory of 1948	2420	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	32
PID 2420 wrote to memory of 1948	2420	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	32
PID 2420 wrote to memory of 2476	2420	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	34
PID 2420 wrote to memory of 2476	2420	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	34
PID 2420 wrote to memory of 2476	2420	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	34
PID 2420 wrote to memory of 2476	2420	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	34
PID 2420 wrote to memory of 2764	2420	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	36
PID 2420 wrote to memory of 2764	2420	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	36
PID 2420 wrote to memory of 2764	2420	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	36
PID 2420 wrote to memory of 2764	2420	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	36
PID 2420 wrote to memory of 2900	2420	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	38
PID 2420 wrote to memory of 2900	2420	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	38
PID 2420 wrote to memory of 2900	2420	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	38
PID 2420 wrote to memory of 2900	2420	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	38
PID 2420 wrote to memory of 2744	2420	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	41
PID 2420 wrote to memory of 2744	2420	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	41
PID 2420 wrote to memory of 2744	2420	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	41
PID 2420 wrote to memory of 2744	2420	9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe	41
PID 2772 wrote to memory of 2532	2772	sbksgygp.exe	43
PID 2772 wrote to memory of 2532	2772	sbksgygp.exe	43
PID 2772 wrote to memory of 2532	2772	sbksgygp.exe	43
PID 2772 wrote to memory of 2532	2772	sbksgygp.exe	43
PID 2772 wrote to memory of 2532	2772	sbksgygp.exe	43
PID 2772 wrote to memory of 2532	2772	sbksgygp.exe	43

C:\Users\Admin\AppData\Local\Temp\9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe
"C:\Users\Admin\AppData\Local\Temp\9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2420
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\acjtikov\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2172
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\sbksgygp.exe" C:\Windows\SysWOW64\acjtikov\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1948
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create acjtikov binPath= "C:\Windows\SysWOW64\acjtikov\sbksgygp.exe /d\"C:\Users\Admin\AppData\Local\Temp\9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2476
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description acjtikov "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2764
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start acjtikov
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2900
- 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:2744

C:\Windows\SysWOW64\acjtikov\sbksgygp.exe
C:\Windows\SysWOW64\acjtikov\sbksgygp.exe /d"C:\Users\Admin\AppData\Local\Temp\9ce8b01c8cfe2020ab11819ff80c747a040698f83613d6dc43b71e09b984961cN.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2772
- 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:2532

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\sbksgygp.exe

Filesize
14.1MB

MD5
a4d753ad78eba8451cfa54379c1cb02d

SHA1
77c27355bc761b537fc64c648af625e986521cfc

SHA256
87fdc8c8d606f9ee67673ed645001bdb179db48763fd63c80ace8cc19b8d2fc4

SHA512
e07773e2c37afeafa7cd4fb52dec948f77bf772917820813cd6a546a4cafb8c2ce8376da61612b57712eababb156a466e2184b95cc48f069e9e7e0f10b637e41

Download Submit
memory/2420-7-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2420-2-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2420-1-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2420-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2420-8-0x0000000000230000-0x0000000000243000-memory.dmp

Filesize
76KB

Download
memory/2420-0-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2420-6-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2532-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2532-10-0x00000000000E0000-0x00000000000F5000-memory.dmp

Filesize
84KB

Download
memory/2532-13-0x00000000000E0000-0x00000000000F5000-memory.dmp

Filesize
84KB

Download
memory/2532-15-0x00000000000E0000-0x00000000000F5000-memory.dmp

Filesize
84KB

Download
memory/2532-17-0x00000000000E0000-0x00000000000F5000-memory.dmp

Filesize
84KB

Download
memory/2772-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads