tofsee | f447757c7f775ff8ddc127a32d64912013b05e9075980a8c52135a9d00025041

Analysis

max time kernel
145s
max time network
120s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
31/01/2025, 20:05

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General

Target

2025-01-31_b34a84dd7a753b36f32f5044f624e252_mafia.exe
Size

13.7MB
MD5

b34a84dd7a753b36f32f5044f624e252
SHA1

ee3fa3f6f0c043e0af87785fe53dcf81855cd7d8
SHA256

f447757c7f775ff8ddc127a32d64912013b05e9075980a8c52135a9d00025041
SHA512

fc7f391ef38890a3e0118b32f508f956f4813cf438171bfdece3fbac9f7653591a182c1cd44e1a98ecf63fd45fde03ad8acf1b5c3fc8f71c893844f436070440
SSDEEP

24576:LEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ7:Yfot

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\kotwbuhh = "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
2952	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\kotwbuhh\ImagePath = "C:\\Windows\\SysWOW64\\kotwbuhh\\jrgkxvee.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2968	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2832	jrgkxvee.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2832 set thread context of 2968	2832	jrgkxvee.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
588	sc.exe
2980	sc.exe
1984	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	2025-01-31_b34a84dd7a753b36f32f5044f624e252_mafia.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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	jrgkxvee.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2260 wrote to memory of 2440	2260	2025-01-31_b34a84dd7a753b36f32f5044f624e252_mafia.exe	30
PID 2260 wrote to memory of 2440	2260	2025-01-31_b34a84dd7a753b36f32f5044f624e252_mafia.exe	30
PID 2260 wrote to memory of 2440	2260	2025-01-31_b34a84dd7a753b36f32f5044f624e252_mafia.exe	30
PID 2260 wrote to memory of 2440	2260	2025-01-31_b34a84dd7a753b36f32f5044f624e252_mafia.exe	30
PID 2260 wrote to memory of 2168	2260	2025-01-31_b34a84dd7a753b36f32f5044f624e252_mafia.exe	32
PID 2260 wrote to memory of 2168	2260	2025-01-31_b34a84dd7a753b36f32f5044f624e252_mafia.exe	32
PID 2260 wrote to memory of 2168	2260	2025-01-31_b34a84dd7a753b36f32f5044f624e252_mafia.exe	32
PID 2260 wrote to memory of 2168	2260	2025-01-31_b34a84dd7a753b36f32f5044f624e252_mafia.exe	32
PID 2260 wrote to memory of 588	2260	2025-01-31_b34a84dd7a753b36f32f5044f624e252_mafia.exe	34
PID 2260 wrote to memory of 588	2260	2025-01-31_b34a84dd7a753b36f32f5044f624e252_mafia.exe	34
PID 2260 wrote to memory of 588	2260	2025-01-31_b34a84dd7a753b36f32f5044f624e252_mafia.exe	34
PID 2260 wrote to memory of 588	2260	2025-01-31_b34a84dd7a753b36f32f5044f624e252_mafia.exe	34
PID 2260 wrote to memory of 2980	2260	2025-01-31_b34a84dd7a753b36f32f5044f624e252_mafia.exe	36
PID 2260 wrote to memory of 2980	2260	2025-01-31_b34a84dd7a753b36f32f5044f624e252_mafia.exe	36
PID 2260 wrote to memory of 2980	2260	2025-01-31_b34a84dd7a753b36f32f5044f624e252_mafia.exe	36
PID 2260 wrote to memory of 2980	2260	2025-01-31_b34a84dd7a753b36f32f5044f624e252_mafia.exe	36
PID 2260 wrote to memory of 1984	2260	2025-01-31_b34a84dd7a753b36f32f5044f624e252_mafia.exe	38
PID 2260 wrote to memory of 1984	2260	2025-01-31_b34a84dd7a753b36f32f5044f624e252_mafia.exe	38
PID 2260 wrote to memory of 1984	2260	2025-01-31_b34a84dd7a753b36f32f5044f624e252_mafia.exe	38
PID 2260 wrote to memory of 1984	2260	2025-01-31_b34a84dd7a753b36f32f5044f624e252_mafia.exe	38
PID 2832 wrote to memory of 2968	2832	jrgkxvee.exe	42
PID 2832 wrote to memory of 2968	2832	jrgkxvee.exe	42
PID 2832 wrote to memory of 2968	2832	jrgkxvee.exe	42
PID 2832 wrote to memory of 2968	2832	jrgkxvee.exe	42
PID 2832 wrote to memory of 2968	2832	jrgkxvee.exe	42
PID 2832 wrote to memory of 2968	2832	jrgkxvee.exe	42
PID 2260 wrote to memory of 2952	2260	2025-01-31_b34a84dd7a753b36f32f5044f624e252_mafia.exe	43
PID 2260 wrote to memory of 2952	2260	2025-01-31_b34a84dd7a753b36f32f5044f624e252_mafia.exe	43
PID 2260 wrote to memory of 2952	2260	2025-01-31_b34a84dd7a753b36f32f5044f624e252_mafia.exe	43
PID 2260 wrote to memory of 2952	2260	2025-01-31_b34a84dd7a753b36f32f5044f624e252_mafia.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-31_b34a84dd7a753b36f32f5044f624e252_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-31_b34a84dd7a753b36f32f5044f624e252_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2260
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kotwbuhh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2440
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jrgkxvee.exe" C:\Windows\SysWOW64\kotwbuhh\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2168
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create kotwbuhh binPath= "C:\Windows\SysWOW64\kotwbuhh\jrgkxvee.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_b34a84dd7a753b36f32f5044f624e252_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:588
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description kotwbuhh "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2980
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start kotwbuhh
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1984
- 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:2952

C:\Windows\SysWOW64\kotwbuhh\jrgkxvee.exe
C:\Windows\SysWOW64\kotwbuhh\jrgkxvee.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_b34a84dd7a753b36f32f5044f624e252_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2832
- 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:2968

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\jrgkxvee.exe

Filesize
11.1MB

MD5
0381ede3cdabe26ae87a5cf7d25f2369

SHA1
6d7a06c19de979fa7163149fd5e01ecc6d95bbb4

SHA256
a006e33d555cb4c9372c20015f22fbf0f3a81fb0483f24b819ab42ac67586e7f

SHA512
578277d97063453b86adfc059834c8a83fc3d83a1dbb495719d5a51cdb3a058b5160ea8567d6e8723820e2a64e09e0ec00f530d2a10ebff1559fc338a692a856

Download Submit
memory/2260-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2260-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2260-1-0x0000000000620000-0x0000000000720000-memory.dmp

Filesize
1024KB

Download
memory/2260-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2260-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2260-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2832-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2968-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2968-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2968-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2968-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2968-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads