tofsee | 220cb3d864feefe0bb4828d09886d0669ac33ac7a9969fed38908b8238d1b438

Analysis

max time kernel
146s
max time network
147s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
31-08-2024 01:22

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General

Target

94999d1dacca1ec7527f3aca2dc6d6650d71f32a10d141bda8e86d1680372d32.exe
Size

10.9MB
MD5

5b71eafbe78dfb0cfe34d51e78f4b646
SHA1

4704183ac76b4dfcf6cb8f7f17ec383846ac0b5b
SHA256

94999d1dacca1ec7527f3aca2dc6d6650d71f32a10d141bda8e86d1680372d32
SHA512

c676de991a00ea0c3279bc1a6cdd7a22f84f1ebdd94106b6eac535f1669faf268f291a77c05d814bc7555038f168c379c7c38b872b790b144b779dc643fdaf97
SSDEEP

98304:/C+PPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPn:6

Score

10^/10

tofsee discovery evasion execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

defeatwax.ru

refabyd.info

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan 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\frhgipod = "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
2864	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\frhgipod\ImagePath = "C:\\Windows\\SysWOW64\\frhgipod\\zeasqtf.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2696	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2780	zeasqtf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2780 set thread context of 2696	2780	zeasqtf.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
2796	sc.exe
2760	sc.exe
2672	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zeasqtf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	94999d1dacca1ec7527f3aca2dc6d6650d71f32a10d141bda8e86d1680372d32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2432 wrote to memory of 2320	2432	94999d1dacca1ec7527f3aca2dc6d6650d71f32a10d141bda8e86d1680372d32.exe	29
PID 2432 wrote to memory of 2320	2432	94999d1dacca1ec7527f3aca2dc6d6650d71f32a10d141bda8e86d1680372d32.exe	29
PID 2432 wrote to memory of 2320	2432	94999d1dacca1ec7527f3aca2dc6d6650d71f32a10d141bda8e86d1680372d32.exe	29
PID 2432 wrote to memory of 2320	2432	94999d1dacca1ec7527f3aca2dc6d6650d71f32a10d141bda8e86d1680372d32.exe	29
PID 2432 wrote to memory of 2844	2432	94999d1dacca1ec7527f3aca2dc6d6650d71f32a10d141bda8e86d1680372d32.exe	31
PID 2432 wrote to memory of 2844	2432	94999d1dacca1ec7527f3aca2dc6d6650d71f32a10d141bda8e86d1680372d32.exe	31
PID 2432 wrote to memory of 2844	2432	94999d1dacca1ec7527f3aca2dc6d6650d71f32a10d141bda8e86d1680372d32.exe	31
PID 2432 wrote to memory of 2844	2432	94999d1dacca1ec7527f3aca2dc6d6650d71f32a10d141bda8e86d1680372d32.exe	31
PID 2432 wrote to memory of 2796	2432	94999d1dacca1ec7527f3aca2dc6d6650d71f32a10d141bda8e86d1680372d32.exe	33
PID 2432 wrote to memory of 2796	2432	94999d1dacca1ec7527f3aca2dc6d6650d71f32a10d141bda8e86d1680372d32.exe	33
PID 2432 wrote to memory of 2796	2432	94999d1dacca1ec7527f3aca2dc6d6650d71f32a10d141bda8e86d1680372d32.exe	33
PID 2432 wrote to memory of 2796	2432	94999d1dacca1ec7527f3aca2dc6d6650d71f32a10d141bda8e86d1680372d32.exe	33
PID 2432 wrote to memory of 2760	2432	94999d1dacca1ec7527f3aca2dc6d6650d71f32a10d141bda8e86d1680372d32.exe	35
PID 2432 wrote to memory of 2760	2432	94999d1dacca1ec7527f3aca2dc6d6650d71f32a10d141bda8e86d1680372d32.exe	35
PID 2432 wrote to memory of 2760	2432	94999d1dacca1ec7527f3aca2dc6d6650d71f32a10d141bda8e86d1680372d32.exe	35
PID 2432 wrote to memory of 2760	2432	94999d1dacca1ec7527f3aca2dc6d6650d71f32a10d141bda8e86d1680372d32.exe	35
PID 2432 wrote to memory of 2672	2432	94999d1dacca1ec7527f3aca2dc6d6650d71f32a10d141bda8e86d1680372d32.exe	37
PID 2432 wrote to memory of 2672	2432	94999d1dacca1ec7527f3aca2dc6d6650d71f32a10d141bda8e86d1680372d32.exe	37
PID 2432 wrote to memory of 2672	2432	94999d1dacca1ec7527f3aca2dc6d6650d71f32a10d141bda8e86d1680372d32.exe	37
PID 2432 wrote to memory of 2672	2432	94999d1dacca1ec7527f3aca2dc6d6650d71f32a10d141bda8e86d1680372d32.exe	37
PID 2432 wrote to memory of 2864	2432	94999d1dacca1ec7527f3aca2dc6d6650d71f32a10d141bda8e86d1680372d32.exe	40
PID 2432 wrote to memory of 2864	2432	94999d1dacca1ec7527f3aca2dc6d6650d71f32a10d141bda8e86d1680372d32.exe	40
PID 2432 wrote to memory of 2864	2432	94999d1dacca1ec7527f3aca2dc6d6650d71f32a10d141bda8e86d1680372d32.exe	40
PID 2432 wrote to memory of 2864	2432	94999d1dacca1ec7527f3aca2dc6d6650d71f32a10d141bda8e86d1680372d32.exe	40
PID 2780 wrote to memory of 2696	2780	zeasqtf.exe	42
PID 2780 wrote to memory of 2696	2780	zeasqtf.exe	42
PID 2780 wrote to memory of 2696	2780	zeasqtf.exe	42
PID 2780 wrote to memory of 2696	2780	zeasqtf.exe	42
PID 2780 wrote to memory of 2696	2780	zeasqtf.exe	42
PID 2780 wrote to memory of 2696	2780	zeasqtf.exe	42

C:\Users\Admin\AppData\Local\Temp\94999d1dacca1ec7527f3aca2dc6d6650d71f32a10d141bda8e86d1680372d32.exe
"C:\Users\Admin\AppData\Local\Temp\94999d1dacca1ec7527f3aca2dc6d6650d71f32a10d141bda8e86d1680372d32.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2432
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\frhgipod\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2320
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zeasqtf.exe" C:\Windows\SysWOW64\frhgipod\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2844
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create frhgipod binPath= "C:\Windows\SysWOW64\frhgipod\zeasqtf.exe /d\"C:\Users\Admin\AppData\Local\Temp\94999d1dacca1ec7527f3aca2dc6d6650d71f32a10d141bda8e86d1680372d32.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2796
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description frhgipod "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2760
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start frhgipod
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2672
- 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:2864

C:\Windows\SysWOW64\frhgipod\zeasqtf.exe
C:\Windows\SysWOW64\frhgipod\zeasqtf.exe /d"C:\Users\Admin\AppData\Local\Temp\94999d1dacca1ec7527f3aca2dc6d6650d71f32a10d141bda8e86d1680372d32.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2780
- 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:2696

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\zeasqtf.exe

Filesize
12.6MB

MD5
93d5fac9e0688fd617d17c54024a0e7b

SHA1
f0dd3ad97e42a4d6e8b61b1dc74bd3ad376547c7

SHA256
53b34c489198060912f964c7ea34c22cd2fb2964d1468a989496e3b845e2d41d

SHA512
8d3702f39c4609159d5f59bfd1ed96344c2f2c37326e3e6d82ccbb065b34a2a3ae2cf8ab7ab249f3b033121be687b07e3a551e2886e98d2dc38ca5c5f617191d

Download Submit
memory/2432-8-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download
memory/2432-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2432-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2432-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2432-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2432-1-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download
memory/2696-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2696-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2696-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2696-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2696-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2780-15-0x0000000000400000-0x00000000004AD000-memory.dmp

Filesize
692KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads