tofsee | 0387be2c453c92137a7c9cb0a3af0818319a4553908caca1360f81a7381e4bc5

General

Target

2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe
Size

13.1MB
MD5

f5fb2495fddf41b528255e66542d47d5
SHA1

966ff2abd9b6193543eb58b58fc1683c833ae768
SHA256

0387be2c453c92137a7c9cb0a3af0818319a4553908caca1360f81a7381e4bc5
SHA512

ecbd2052029ff818a6c621af601ce24c3bd56b4851fe08ad5f63a1164945dfc786f6de077f147d81366563bac315ef57ec014f1ea8cd9ee22c6e61d3c7f689f3
SSDEEP

6144:sLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQu:BTYe+D2jFu+iZoUFhAz1

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

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
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
3980	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\tqrskae\ImagePath = "C:\\Windows\\SysWOW64\\tqrskae\\ckzdqoxx.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3625106387-4207083342-115176794-1000\Control Panel\International\Geo\Nation	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe

Deletes itself 1 IoCs

pid	Process
2912	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4652	ckzdqoxx.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4652 set thread context of 2912	4652	ckzdqoxx.exe	102

Launches sc.exe 3 IoCs

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

pid	Process
2784	sc.exe
2208	sc.exe
4328	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1276	4244	WerFault.exe	83
952	4652	WerFault.exe	97

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	ckzdqoxx.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 4244 wrote to memory of 2172	4244	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe	87
PID 4244 wrote to memory of 2172	4244	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe	87
PID 4244 wrote to memory of 2172	4244	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe	87
PID 4244 wrote to memory of 1840	4244	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe	89
PID 4244 wrote to memory of 1840	4244	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe	89
PID 4244 wrote to memory of 1840	4244	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe	89
PID 4244 wrote to memory of 2208	4244	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe	91
PID 4244 wrote to memory of 2208	4244	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe	91
PID 4244 wrote to memory of 2208	4244	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe	91
PID 4244 wrote to memory of 4328	4244	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe	93
PID 4244 wrote to memory of 4328	4244	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe	93
PID 4244 wrote to memory of 4328	4244	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe	93
PID 4244 wrote to memory of 2784	4244	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe	95
PID 4244 wrote to memory of 2784	4244	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe	95
PID 4244 wrote to memory of 2784	4244	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe	95
PID 4244 wrote to memory of 3980	4244	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe	98
PID 4244 wrote to memory of 3980	4244	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe	98
PID 4244 wrote to memory of 3980	4244	2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe	98
PID 4652 wrote to memory of 2912	4652	ckzdqoxx.exe	102
PID 4652 wrote to memory of 2912	4652	ckzdqoxx.exe	102
PID 4652 wrote to memory of 2912	4652	ckzdqoxx.exe	102
PID 4652 wrote to memory of 2912	4652	ckzdqoxx.exe	102
PID 4652 wrote to memory of 2912	4652	ckzdqoxx.exe	102

C:\Users\Admin\AppData\Local\Temp\2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4244
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tqrskae\
  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\ckzdqoxx.exe" C:\Windows\SysWOW64\tqrskae\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1840
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create tqrskae binPath= "C:\Windows\SysWOW64\tqrskae\ckzdqoxx.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2208
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description tqrskae "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4328
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start tqrskae
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2784
- 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:3980
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4244 -s 888
  2⤵
  - Program crash
  PID:1276

C:\Windows\SysWOW64\tqrskae\ckzdqoxx.exe
C:\Windows\SysWOW64\tqrskae\ckzdqoxx.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-06_f5fb2495fddf41b528255e66542d47d5_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4652
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2912
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4652 -s 508
  2⤵
  - Program crash
  PID:952

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4244 -ip 4244
1⤵
PID:1640

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4652 -ip 4652
1⤵
PID:2344

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\ckzdqoxx.exe

Filesize
12.5MB

MD5
6e06bac51eeea124e9ea512e1894c7c2

SHA1
b67ccd7e9d3c50499beba5e7095bd03c616ec84c

SHA256
883efcd76698313cf1d8c347c7f66e9c27a68958454ed82dee7022b3d312e064

SHA512
6dbcc2063bd362ed5f033997f972112bb5a0dda5b4ef8c325b4c3401d58ac7c035f278abee13602de2d7f405faecc3861b01724dba94d24fb46e35aac71cd17c

Download Submit
memory/2912-9-0x0000000000C00000-0x0000000000C15000-memory.dmp

Filesize
84KB

Download
memory/2912-12-0x0000000000C00000-0x0000000000C15000-memory.dmp

Filesize
84KB

Download
memory/2912-18-0x0000000000C00000-0x0000000000C15000-memory.dmp

Filesize
84KB

Download
memory/2912-19-0x0000000000C00000-0x0000000000C15000-memory.dmp

Filesize
84KB

Download
memory/2912-20-0x0000000000C00000-0x0000000000C15000-memory.dmp

Filesize
84KB

Download
memory/4244-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4244-2-0x0000000000610000-0x0000000000623000-memory.dmp

Filesize
76KB

Download
memory/4244-1-0x0000000000510000-0x0000000000610000-memory.dmp

Filesize
1024KB

Download
memory/4244-15-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4244-14-0x0000000000610000-0x0000000000623000-memory.dmp

Filesize
76KB

Download
memory/4244-13-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4652-8-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4652-17-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads