tofsee | ba4e6a37a573d52c8662858559fc0ce0b99156bbbb56b44762912243c4abe39c

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
23-11-2024 12:24

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General

Target

ba4e6a37a573d52c8662858559fc0ce0b99156bbbb56b44762912243c4abe39c.exe
Size

13.5MB
MD5

d10e66a249b3d6e9523b2ef377a732e0
SHA1

bbebd8b6af0275d16f7613451665f9e749bcec45
SHA256

ba4e6a37a573d52c8662858559fc0ce0b99156bbbb56b44762912243c4abe39c
SHA512

df255294220063308eb1155cd5f8a299f8e3f64084aa0d66178f69bf1ebe6245a861c6070a9fdeda4ab75a9870bfde4b8745c56ddd638197925b892556ff3ea2
SSDEEP

6144:NpQ6t5O5aSeJhB5Cnyt+dg/KRJC8jbPzxRL2RjZyjSIQf4GFx:Nm6+8Rhqnycdg/SljbbxRL+Z6Sr7Fx

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

Processes:

svchost.exe

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\favckyqd = "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

Processes:

netsh.exe

pid	Process
2788	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\favckyqd\ImagePath = "C:\\Windows\\SysWOW64\\favckyqd\\sytwfooj.exe"	svchost.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid	Process
2916	svchost.exe

Executes dropped EXE 1 IoCs

Processes:

sytwfooj.exe

pid	Process
2708	sytwfooj.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

sytwfooj.exe

description	pid	Process	procid_target
PID 2708 set thread context of 2916	2708	sytwfooj.exe	43

Launches sc.exe 3 IoCs

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

Processes:

sc.exesc.exesc.exe

pid	Process
2292	sc.exe
2264	sc.exe
2324	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

Processes:

netsh.exe

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

Processes:

sytwfooj.exeba4e6a37a573d52c8662858559fc0ce0b99156bbbb56b44762912243c4abe39c.execmd.exesc.exesc.execmd.exesc.exenetsh.exesvchost.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sytwfooj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ba4e6a37a573d52c8662858559fc0ce0b99156bbbb56b44762912243c4abe39c.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
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

Processes:

ba4e6a37a573d52c8662858559fc0ce0b99156bbbb56b44762912243c4abe39c.exesytwfooj.exe

description	pid	Process	procid_target
PID 2352 wrote to memory of 1312	2352	ba4e6a37a573d52c8662858559fc0ce0b99156bbbb56b44762912243c4abe39c.exe	30
PID 2352 wrote to memory of 1312	2352	ba4e6a37a573d52c8662858559fc0ce0b99156bbbb56b44762912243c4abe39c.exe	30
PID 2352 wrote to memory of 1312	2352	ba4e6a37a573d52c8662858559fc0ce0b99156bbbb56b44762912243c4abe39c.exe	30
PID 2352 wrote to memory of 1312	2352	ba4e6a37a573d52c8662858559fc0ce0b99156bbbb56b44762912243c4abe39c.exe	30
PID 2352 wrote to memory of 1800	2352	ba4e6a37a573d52c8662858559fc0ce0b99156bbbb56b44762912243c4abe39c.exe	32
PID 2352 wrote to memory of 1800	2352	ba4e6a37a573d52c8662858559fc0ce0b99156bbbb56b44762912243c4abe39c.exe	32
PID 2352 wrote to memory of 1800	2352	ba4e6a37a573d52c8662858559fc0ce0b99156bbbb56b44762912243c4abe39c.exe	32
PID 2352 wrote to memory of 1800	2352	ba4e6a37a573d52c8662858559fc0ce0b99156bbbb56b44762912243c4abe39c.exe	32
PID 2352 wrote to memory of 2292	2352	ba4e6a37a573d52c8662858559fc0ce0b99156bbbb56b44762912243c4abe39c.exe	34
PID 2352 wrote to memory of 2292	2352	ba4e6a37a573d52c8662858559fc0ce0b99156bbbb56b44762912243c4abe39c.exe	34
PID 2352 wrote to memory of 2292	2352	ba4e6a37a573d52c8662858559fc0ce0b99156bbbb56b44762912243c4abe39c.exe	34
PID 2352 wrote to memory of 2292	2352	ba4e6a37a573d52c8662858559fc0ce0b99156bbbb56b44762912243c4abe39c.exe	34
PID 2352 wrote to memory of 2264	2352	ba4e6a37a573d52c8662858559fc0ce0b99156bbbb56b44762912243c4abe39c.exe	36
PID 2352 wrote to memory of 2264	2352	ba4e6a37a573d52c8662858559fc0ce0b99156bbbb56b44762912243c4abe39c.exe	36
PID 2352 wrote to memory of 2264	2352	ba4e6a37a573d52c8662858559fc0ce0b99156bbbb56b44762912243c4abe39c.exe	36
PID 2352 wrote to memory of 2264	2352	ba4e6a37a573d52c8662858559fc0ce0b99156bbbb56b44762912243c4abe39c.exe	36
PID 2352 wrote to memory of 2324	2352	ba4e6a37a573d52c8662858559fc0ce0b99156bbbb56b44762912243c4abe39c.exe	38
PID 2352 wrote to memory of 2324	2352	ba4e6a37a573d52c8662858559fc0ce0b99156bbbb56b44762912243c4abe39c.exe	38
PID 2352 wrote to memory of 2324	2352	ba4e6a37a573d52c8662858559fc0ce0b99156bbbb56b44762912243c4abe39c.exe	38
PID 2352 wrote to memory of 2324	2352	ba4e6a37a573d52c8662858559fc0ce0b99156bbbb56b44762912243c4abe39c.exe	38
PID 2352 wrote to memory of 2788	2352	ba4e6a37a573d52c8662858559fc0ce0b99156bbbb56b44762912243c4abe39c.exe	41
PID 2352 wrote to memory of 2788	2352	ba4e6a37a573d52c8662858559fc0ce0b99156bbbb56b44762912243c4abe39c.exe	41
PID 2352 wrote to memory of 2788	2352	ba4e6a37a573d52c8662858559fc0ce0b99156bbbb56b44762912243c4abe39c.exe	41
PID 2352 wrote to memory of 2788	2352	ba4e6a37a573d52c8662858559fc0ce0b99156bbbb56b44762912243c4abe39c.exe	41
PID 2708 wrote to memory of 2916	2708	sytwfooj.exe	43
PID 2708 wrote to memory of 2916	2708	sytwfooj.exe	43
PID 2708 wrote to memory of 2916	2708	sytwfooj.exe	43
PID 2708 wrote to memory of 2916	2708	sytwfooj.exe	43
PID 2708 wrote to memory of 2916	2708	sytwfooj.exe	43
PID 2708 wrote to memory of 2916	2708	sytwfooj.exe	43

C:\Users\Admin\AppData\Local\Temp\ba4e6a37a573d52c8662858559fc0ce0b99156bbbb56b44762912243c4abe39c.exe
"C:\Users\Admin\AppData\Local\Temp\ba4e6a37a573d52c8662858559fc0ce0b99156bbbb56b44762912243c4abe39c.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2352
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\favckyqd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1312
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\sytwfooj.exe" C:\Windows\SysWOW64\favckyqd\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1800
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create favckyqd binPath= "C:\Windows\SysWOW64\favckyqd\sytwfooj.exe /d\"C:\Users\Admin\AppData\Local\Temp\ba4e6a37a573d52c8662858559fc0ce0b99156bbbb56b44762912243c4abe39c.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2292
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description favckyqd "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2264
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start favckyqd
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2324
- 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:2788

C:\Windows\SysWOW64\favckyqd\sytwfooj.exe
C:\Windows\SysWOW64\favckyqd\sytwfooj.exe /d"C:\Users\Admin\AppData\Local\Temp\ba4e6a37a573d52c8662858559fc0ce0b99156bbbb56b44762912243c4abe39c.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2708
- 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:2916

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\sytwfooj.exe

Filesize
11.6MB

MD5
8e96ebabc7950eb6296fa9b9e4e6ec70

SHA1
0500ff4c40ea2bb21a78a74fbd26ebc9713316ce

SHA256
1e0301ca0b742d6d4cb83edb247881e47c98b3316d47664b90633cadc3b630d5

SHA512
d3cc0d15d0030dc57eec152c6b7599b01c3416811f7bd5d769b362c7ba5f1f95fdc2afe94243adad671dac68f3185f4024b0458e7f9ad4f173048eced2eeb644

Download Submit
memory/2352-9-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2352-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2352-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2352-8-0x0000000000400000-0x0000000000788000-memory.dmp

Filesize
3.5MB

Download
memory/2352-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2352-1-0x0000000000950000-0x0000000000A50000-memory.dmp

Filesize
1024KB

Download
memory/2708-15-0x0000000000400000-0x0000000000788000-memory.dmp

Filesize
3.5MB

Download
memory/2916-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2916-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2916-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2916-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2916-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download