tofsee | 26cbf6573e3ff65610d2f8766543be13c021de428b2dea15814806fb84f49027

Analysis

max time kernel
145s
max time network
120s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
03-02-2025 21:25

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General

Target

2025-02-03_aaec138d6fde4a2307b05baa2381010b_mafia.exe
Size

10.0MB
MD5

aaec138d6fde4a2307b05baa2381010b
SHA1

e556799f565d06bf0645b0f7a4b054fec09398d6
SHA256

26cbf6573e3ff65610d2f8766543be13c021de428b2dea15814806fb84f49027
SHA512

7a250c6bdc43c671c98e065f6120e8aaf3308001b7e8707c8f8ad9202dfcc8775072483ee72c7d8477c46f7ab917d63db60aa051f7af1607d76ce83687aad1f0
SSDEEP

196608:QyXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXH:lXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

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\szdpsewi = "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
3056	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\szdpsewi\ImagePath = "C:\\Windows\\SysWOW64\\szdpsewi\\bxppmbao.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2576	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1760	bxppmbao.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1760 set thread context of 2576	1760	bxppmbao.exe	41

Launches sc.exe 3 IoCs

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

pid	Process
2964	sc.exe
2572	sc.exe
2712	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	2025-02-03_aaec138d6fde4a2307b05baa2381010b_mafia.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	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	bxppmbao.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 2844	2380	2025-02-03_aaec138d6fde4a2307b05baa2381010b_mafia.exe	30
PID 2380 wrote to memory of 2844	2380	2025-02-03_aaec138d6fde4a2307b05baa2381010b_mafia.exe	30
PID 2380 wrote to memory of 2844	2380	2025-02-03_aaec138d6fde4a2307b05baa2381010b_mafia.exe	30
PID 2380 wrote to memory of 2844	2380	2025-02-03_aaec138d6fde4a2307b05baa2381010b_mafia.exe	30
PID 2380 wrote to memory of 2704	2380	2025-02-03_aaec138d6fde4a2307b05baa2381010b_mafia.exe	32
PID 2380 wrote to memory of 2704	2380	2025-02-03_aaec138d6fde4a2307b05baa2381010b_mafia.exe	32
PID 2380 wrote to memory of 2704	2380	2025-02-03_aaec138d6fde4a2307b05baa2381010b_mafia.exe	32
PID 2380 wrote to memory of 2704	2380	2025-02-03_aaec138d6fde4a2307b05baa2381010b_mafia.exe	32
PID 2380 wrote to memory of 2964	2380	2025-02-03_aaec138d6fde4a2307b05baa2381010b_mafia.exe	34
PID 2380 wrote to memory of 2964	2380	2025-02-03_aaec138d6fde4a2307b05baa2381010b_mafia.exe	34
PID 2380 wrote to memory of 2964	2380	2025-02-03_aaec138d6fde4a2307b05baa2381010b_mafia.exe	34
PID 2380 wrote to memory of 2964	2380	2025-02-03_aaec138d6fde4a2307b05baa2381010b_mafia.exe	34
PID 2380 wrote to memory of 2572	2380	2025-02-03_aaec138d6fde4a2307b05baa2381010b_mafia.exe	36
PID 2380 wrote to memory of 2572	2380	2025-02-03_aaec138d6fde4a2307b05baa2381010b_mafia.exe	36
PID 2380 wrote to memory of 2572	2380	2025-02-03_aaec138d6fde4a2307b05baa2381010b_mafia.exe	36
PID 2380 wrote to memory of 2572	2380	2025-02-03_aaec138d6fde4a2307b05baa2381010b_mafia.exe	36
PID 2380 wrote to memory of 2712	2380	2025-02-03_aaec138d6fde4a2307b05baa2381010b_mafia.exe	38
PID 2380 wrote to memory of 2712	2380	2025-02-03_aaec138d6fde4a2307b05baa2381010b_mafia.exe	38
PID 2380 wrote to memory of 2712	2380	2025-02-03_aaec138d6fde4a2307b05baa2381010b_mafia.exe	38
PID 2380 wrote to memory of 2712	2380	2025-02-03_aaec138d6fde4a2307b05baa2381010b_mafia.exe	38
PID 1760 wrote to memory of 2576	1760	bxppmbao.exe	41
PID 1760 wrote to memory of 2576	1760	bxppmbao.exe	41
PID 1760 wrote to memory of 2576	1760	bxppmbao.exe	41
PID 1760 wrote to memory of 2576	1760	bxppmbao.exe	41
PID 1760 wrote to memory of 2576	1760	bxppmbao.exe	41
PID 1760 wrote to memory of 2576	1760	bxppmbao.exe	41
PID 2380 wrote to memory of 3056	2380	2025-02-03_aaec138d6fde4a2307b05baa2381010b_mafia.exe	42
PID 2380 wrote to memory of 3056	2380	2025-02-03_aaec138d6fde4a2307b05baa2381010b_mafia.exe	42
PID 2380 wrote to memory of 3056	2380	2025-02-03_aaec138d6fde4a2307b05baa2381010b_mafia.exe	42
PID 2380 wrote to memory of 3056	2380	2025-02-03_aaec138d6fde4a2307b05baa2381010b_mafia.exe	42

C:\Users\Admin\AppData\Local\Temp\2025-02-03_aaec138d6fde4a2307b05baa2381010b_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-03_aaec138d6fde4a2307b05baa2381010b_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\szdpsewi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2844
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bxppmbao.exe" C:\Windows\SysWOW64\szdpsewi\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2704
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create szdpsewi binPath= "C:\Windows\SysWOW64\szdpsewi\bxppmbao.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-03_aaec138d6fde4a2307b05baa2381010b_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2964
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description szdpsewi "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2572
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start szdpsewi
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2712
- 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:3056

C:\Windows\SysWOW64\szdpsewi\bxppmbao.exe
C:\Windows\SysWOW64\szdpsewi\bxppmbao.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-03_aaec138d6fde4a2307b05baa2381010b_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1760
- 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:2576

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\bxppmbao.exe

Filesize
12.8MB

MD5
2e5f8fb9e3d7d5fc399ffa8be24623dc

SHA1
4a19d52a4e2148e99cc9c404afa355ed09b74790

SHA256
390ec7f3b4efe540426c2ea292218a999894ff6e4fac7b5017d8041f634bf997

SHA512
a8ffb06dd8dbddc3418f9ac1f36eafe7c09d69d7ba22bd59cdc3fd919c4d25149897a5246339365a0d74d1f1a4892b793befe4a38be5eccdc40965d66a4711ba

Download Submit
memory/1760-13-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2380-14-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2380-1-0x00000000005A0000-0x00000000006A0000-memory.dmp

Filesize
1024KB

Download
memory/2380-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2380-15-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/2380-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2380-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2576-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2576-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2576-8-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2576-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2576-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads