tofsee | b55246338bcdc1bebe0eeb46362d3cd71d843dff533e21ded99653e0cdd0ca7c

Analysis

max time kernel
144s
max time network
122s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
27-01-2025 11:04

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General

Target

2025-01-27_20a671c03662511935387bb74be8153b_mafia.exe
Size

13.1MB
MD5

20a671c03662511935387bb74be8153b
SHA1

55f63ef86a4b4af0d35ca0d35ee78af85f4866d1
SHA256

b55246338bcdc1bebe0eeb46362d3cd71d843dff533e21ded99653e0cdd0ca7c
SHA512

31c6683296a3aaf4863a893f8d57f3dbd5e1742ced1d11cd72c92969cda60e1e47e5ba117037c1c86c5a589bec74acf74331a700bcbf219751a5b7e125e0cfd3
SSDEEP

49152:XqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP:XqtYc3

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\caqukpas = "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
2976	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\caqukpas\ImagePath = "C:\\Windows\\SysWOW64\\caqukpas\\xjiwhrzt.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2940	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2852	xjiwhrzt.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2852 set thread context of 2940	2852	xjiwhrzt.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2312	sc.exe
2560	sc.exe
1828	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	netsh.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-27_20a671c03662511935387bb74be8153b_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xjiwhrzt.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2016 wrote to memory of 2612	2016	2025-01-27_20a671c03662511935387bb74be8153b_mafia.exe	30
PID 2016 wrote to memory of 2612	2016	2025-01-27_20a671c03662511935387bb74be8153b_mafia.exe	30
PID 2016 wrote to memory of 2612	2016	2025-01-27_20a671c03662511935387bb74be8153b_mafia.exe	30
PID 2016 wrote to memory of 2612	2016	2025-01-27_20a671c03662511935387bb74be8153b_mafia.exe	30
PID 2016 wrote to memory of 2492	2016	2025-01-27_20a671c03662511935387bb74be8153b_mafia.exe	32
PID 2016 wrote to memory of 2492	2016	2025-01-27_20a671c03662511935387bb74be8153b_mafia.exe	32
PID 2016 wrote to memory of 2492	2016	2025-01-27_20a671c03662511935387bb74be8153b_mafia.exe	32
PID 2016 wrote to memory of 2492	2016	2025-01-27_20a671c03662511935387bb74be8153b_mafia.exe	32
PID 2016 wrote to memory of 2312	2016	2025-01-27_20a671c03662511935387bb74be8153b_mafia.exe	34
PID 2016 wrote to memory of 2312	2016	2025-01-27_20a671c03662511935387bb74be8153b_mafia.exe	34
PID 2016 wrote to memory of 2312	2016	2025-01-27_20a671c03662511935387bb74be8153b_mafia.exe	34
PID 2016 wrote to memory of 2312	2016	2025-01-27_20a671c03662511935387bb74be8153b_mafia.exe	34
PID 2016 wrote to memory of 2560	2016	2025-01-27_20a671c03662511935387bb74be8153b_mafia.exe	36
PID 2016 wrote to memory of 2560	2016	2025-01-27_20a671c03662511935387bb74be8153b_mafia.exe	36
PID 2016 wrote to memory of 2560	2016	2025-01-27_20a671c03662511935387bb74be8153b_mafia.exe	36
PID 2016 wrote to memory of 2560	2016	2025-01-27_20a671c03662511935387bb74be8153b_mafia.exe	36
PID 2016 wrote to memory of 1828	2016	2025-01-27_20a671c03662511935387bb74be8153b_mafia.exe	38
PID 2016 wrote to memory of 1828	2016	2025-01-27_20a671c03662511935387bb74be8153b_mafia.exe	38
PID 2016 wrote to memory of 1828	2016	2025-01-27_20a671c03662511935387bb74be8153b_mafia.exe	38
PID 2016 wrote to memory of 1828	2016	2025-01-27_20a671c03662511935387bb74be8153b_mafia.exe	38
PID 2016 wrote to memory of 2976	2016	2025-01-27_20a671c03662511935387bb74be8153b_mafia.exe	41
PID 2016 wrote to memory of 2976	2016	2025-01-27_20a671c03662511935387bb74be8153b_mafia.exe	41
PID 2016 wrote to memory of 2976	2016	2025-01-27_20a671c03662511935387bb74be8153b_mafia.exe	41
PID 2016 wrote to memory of 2976	2016	2025-01-27_20a671c03662511935387bb74be8153b_mafia.exe	41
PID 2852 wrote to memory of 2940	2852	xjiwhrzt.exe	43
PID 2852 wrote to memory of 2940	2852	xjiwhrzt.exe	43
PID 2852 wrote to memory of 2940	2852	xjiwhrzt.exe	43
PID 2852 wrote to memory of 2940	2852	xjiwhrzt.exe	43
PID 2852 wrote to memory of 2940	2852	xjiwhrzt.exe	43
PID 2852 wrote to memory of 2940	2852	xjiwhrzt.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-27_20a671c03662511935387bb74be8153b_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-27_20a671c03662511935387bb74be8153b_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2016
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\caqukpas\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2612
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xjiwhrzt.exe" C:\Windows\SysWOW64\caqukpas\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2492
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create caqukpas binPath= "C:\Windows\SysWOW64\caqukpas\xjiwhrzt.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-27_20a671c03662511935387bb74be8153b_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2312
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description caqukpas "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2560
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start caqukpas
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1828
- 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:2976

C:\Windows\SysWOW64\caqukpas\xjiwhrzt.exe
C:\Windows\SysWOW64\caqukpas\xjiwhrzt.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-27_20a671c03662511935387bb74be8153b_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2852
- 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:2940

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\xjiwhrzt.exe

Filesize
14.1MB

MD5
af9bc789e2264ef558ab7ae6f67eb571

SHA1
93eb9b0485ca532af623101470f3fe9e9e5851f1

SHA256
71ce67d1c51cef93b5055fcd754998dcb5fe4a2196f8b45ba075768492fb525c

SHA512
3d3a33ac75286fc265d7215b94bcb5568c3fc24aeef47b543df1506c671b86180f823148672117cb5e7aac4727b9376fa3710d1cf0f01a7c1022d379e1236f15

Download Submit
memory/2016-7-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2016-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2016-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2016-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2016-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2016-1-0x0000000002F70000-0x0000000003070000-memory.dmp

Filesize
1024KB

Download
memory/2852-17-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2940-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2940-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2940-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2940-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2940-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads