tofsee | c0b7e00532c41afb64dd5254952b61511a945eb5d0ed492352919bc41397f4f5

Analysis

max time kernel
145s
max time network
123s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
29/01/2025, 17:30

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General

Target

2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe
Size

11.4MB
MD5

6c5e452df29b5a756d22f22a8250e379
SHA1

2220bf75ba0c6eb8a2ae4740c8b63bdd04a2d8b8
SHA256

c0b7e00532c41afb64dd5254952b61511a945eb5d0ed492352919bc41397f4f5
SHA512

c563d976efa75b53187b2649bc3166f756b4d383cc5364c25e7b86a5d643879f7089c0eddb46bed2085f668c335f1c076646455337cb357aea534ffdf292977d
SSDEEP

3072:ZLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:cOMdRQr7OB0ypmMXnl8XEPM3noSWOC

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\ooghnxub = "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
2888	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\ooghnxub\ImagePath = "C:\\Windows\\SysWOW64\\ooghnxub\\bzijsodz.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2772	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2928	bzijsodz.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2928 set thread context of 2772	2928	bzijsodz.exe	42

Launches sc.exe 3 IoCs

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

pid	Process
3020	sc.exe
2420	sc.exe
2924	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	bzijsodz.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	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1704 wrote to memory of 2360	1704	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	31
PID 1704 wrote to memory of 2360	1704	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	31
PID 1704 wrote to memory of 2360	1704	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	31
PID 1704 wrote to memory of 2360	1704	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	31
PID 1704 wrote to memory of 1148	1704	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	33
PID 1704 wrote to memory of 1148	1704	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	33
PID 1704 wrote to memory of 1148	1704	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	33
PID 1704 wrote to memory of 1148	1704	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	33
PID 1704 wrote to memory of 3020	1704	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	35
PID 1704 wrote to memory of 3020	1704	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	35
PID 1704 wrote to memory of 3020	1704	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	35
PID 1704 wrote to memory of 3020	1704	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	35
PID 1704 wrote to memory of 2420	1704	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	37
PID 1704 wrote to memory of 2420	1704	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	37
PID 1704 wrote to memory of 2420	1704	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	37
PID 1704 wrote to memory of 2420	1704	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	37
PID 1704 wrote to memory of 2924	1704	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	39
PID 1704 wrote to memory of 2924	1704	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	39
PID 1704 wrote to memory of 2924	1704	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	39
PID 1704 wrote to memory of 2924	1704	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	39
PID 2928 wrote to memory of 2772	2928	bzijsodz.exe	42
PID 2928 wrote to memory of 2772	2928	bzijsodz.exe	42
PID 2928 wrote to memory of 2772	2928	bzijsodz.exe	42
PID 2928 wrote to memory of 2772	2928	bzijsodz.exe	42
PID 2928 wrote to memory of 2772	2928	bzijsodz.exe	42
PID 2928 wrote to memory of 2772	2928	bzijsodz.exe	42
PID 1704 wrote to memory of 2888	1704	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	43
PID 1704 wrote to memory of 2888	1704	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	43
PID 1704 wrote to memory of 2888	1704	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	43
PID 1704 wrote to memory of 2888	1704	2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1704
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ooghnxub\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2360
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bzijsodz.exe" C:\Windows\SysWOW64\ooghnxub\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1148
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ooghnxub binPath= "C:\Windows\SysWOW64\ooghnxub\bzijsodz.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3020
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ooghnxub "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2420
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ooghnxub
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2924
- 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:2888

C:\Windows\SysWOW64\ooghnxub\bzijsodz.exe
C:\Windows\SysWOW64\ooghnxub\bzijsodz.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-29_6c5e452df29b5a756d22f22a8250e379_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2928
- 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:2772

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\bzijsodz.exe

Filesize
10.3MB

MD5
5f59183bce08d421a19261df419bd6ce

SHA1
02d3b9ed16c6c2fc624fa337e22615d53954fb4f

SHA256
471f71f2754d1e503d74e5ddcfc733d15869f22728dbabe36a56533af2411568

SHA512
ced465706fc0dd6207e2f06ff3468592ad841904eb0245100d960f7bcbc62f160896510a00ce49f88b42a650516249285657bdcf8aad4c91f10d68ae2ff6e6a6

Download Submit
memory/1704-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1704-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1704-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1704-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1704-1-0x0000000000510000-0x0000000000610000-memory.dmp

Filesize
1024KB

Download
memory/1704-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2772-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2772-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2772-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2772-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2772-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2928-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads