tofsee | e8407556a5ed4ef7b4dc4a2454b1ba82e9016d96b71e598b8c70981c4860ca76

Analysis

max time kernel
146s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
27/01/2025, 18:46

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General

Target

2025-01-27_3b1c42b9fc861bf99b8982db9801462d_mafia.exe
Size

10.7MB
MD5

3b1c42b9fc861bf99b8982db9801462d
SHA1

c5aad6d3a1a04f4dfffa0bf8ab5c64d5161d3797
SHA256

e8407556a5ed4ef7b4dc4a2454b1ba82e9016d96b71e598b8c70981c4860ca76
SHA512

4f55812888670754a2cff405cc9a9d9231a55f5db1825502a5e71066763d08f25ed93aa5dc5467bf8edc9eea41c0f65578eb0793b139d0db58702941bd3724f0
SSDEEP

3072:nLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:+OMdRQr7OB0ypmMXnl8XEPM3noSWOC

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\dlqwbkjy = "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
2840	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\dlqwbkjy\ImagePath = "C:\\Windows\\SysWOW64\\dlqwbkjy\\baoqebcu.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2944	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2732	baoqebcu.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2732 set thread context of 2944	2732	baoqebcu.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2760	sc.exe
2796	sc.exe
2872	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	baoqebcu.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	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_3b1c42b9fc861bf99b8982db9801462d_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3056 wrote to memory of 2524	3056	2025-01-27_3b1c42b9fc861bf99b8982db9801462d_mafia.exe	30
PID 3056 wrote to memory of 2524	3056	2025-01-27_3b1c42b9fc861bf99b8982db9801462d_mafia.exe	30
PID 3056 wrote to memory of 2524	3056	2025-01-27_3b1c42b9fc861bf99b8982db9801462d_mafia.exe	30
PID 3056 wrote to memory of 2524	3056	2025-01-27_3b1c42b9fc861bf99b8982db9801462d_mafia.exe	30
PID 3056 wrote to memory of 1624	3056	2025-01-27_3b1c42b9fc861bf99b8982db9801462d_mafia.exe	32
PID 3056 wrote to memory of 1624	3056	2025-01-27_3b1c42b9fc861bf99b8982db9801462d_mafia.exe	32
PID 3056 wrote to memory of 1624	3056	2025-01-27_3b1c42b9fc861bf99b8982db9801462d_mafia.exe	32
PID 3056 wrote to memory of 1624	3056	2025-01-27_3b1c42b9fc861bf99b8982db9801462d_mafia.exe	32
PID 3056 wrote to memory of 2796	3056	2025-01-27_3b1c42b9fc861bf99b8982db9801462d_mafia.exe	34
PID 3056 wrote to memory of 2796	3056	2025-01-27_3b1c42b9fc861bf99b8982db9801462d_mafia.exe	34
PID 3056 wrote to memory of 2796	3056	2025-01-27_3b1c42b9fc861bf99b8982db9801462d_mafia.exe	34
PID 3056 wrote to memory of 2796	3056	2025-01-27_3b1c42b9fc861bf99b8982db9801462d_mafia.exe	34
PID 3056 wrote to memory of 2872	3056	2025-01-27_3b1c42b9fc861bf99b8982db9801462d_mafia.exe	36
PID 3056 wrote to memory of 2872	3056	2025-01-27_3b1c42b9fc861bf99b8982db9801462d_mafia.exe	36
PID 3056 wrote to memory of 2872	3056	2025-01-27_3b1c42b9fc861bf99b8982db9801462d_mafia.exe	36
PID 3056 wrote to memory of 2872	3056	2025-01-27_3b1c42b9fc861bf99b8982db9801462d_mafia.exe	36
PID 3056 wrote to memory of 2760	3056	2025-01-27_3b1c42b9fc861bf99b8982db9801462d_mafia.exe	38
PID 3056 wrote to memory of 2760	3056	2025-01-27_3b1c42b9fc861bf99b8982db9801462d_mafia.exe	38
PID 3056 wrote to memory of 2760	3056	2025-01-27_3b1c42b9fc861bf99b8982db9801462d_mafia.exe	38
PID 3056 wrote to memory of 2760	3056	2025-01-27_3b1c42b9fc861bf99b8982db9801462d_mafia.exe	38
PID 3056 wrote to memory of 2840	3056	2025-01-27_3b1c42b9fc861bf99b8982db9801462d_mafia.exe	41
PID 3056 wrote to memory of 2840	3056	2025-01-27_3b1c42b9fc861bf99b8982db9801462d_mafia.exe	41
PID 3056 wrote to memory of 2840	3056	2025-01-27_3b1c42b9fc861bf99b8982db9801462d_mafia.exe	41
PID 3056 wrote to memory of 2840	3056	2025-01-27_3b1c42b9fc861bf99b8982db9801462d_mafia.exe	41
PID 2732 wrote to memory of 2944	2732	baoqebcu.exe	43
PID 2732 wrote to memory of 2944	2732	baoqebcu.exe	43
PID 2732 wrote to memory of 2944	2732	baoqebcu.exe	43
PID 2732 wrote to memory of 2944	2732	baoqebcu.exe	43
PID 2732 wrote to memory of 2944	2732	baoqebcu.exe	43
PID 2732 wrote to memory of 2944	2732	baoqebcu.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-27_3b1c42b9fc861bf99b8982db9801462d_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-27_3b1c42b9fc861bf99b8982db9801462d_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3056
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dlqwbkjy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2524
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\baoqebcu.exe" C:\Windows\SysWOW64\dlqwbkjy\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1624
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create dlqwbkjy binPath= "C:\Windows\SysWOW64\dlqwbkjy\baoqebcu.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-27_3b1c42b9fc861bf99b8982db9801462d_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2796
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description dlqwbkjy "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2872
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start dlqwbkjy
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2760
- 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:2840

C:\Windows\SysWOW64\dlqwbkjy\baoqebcu.exe
C:\Windows\SysWOW64\dlqwbkjy\baoqebcu.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-27_3b1c42b9fc861bf99b8982db9801462d_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2732
- 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:2944

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\baoqebcu.exe

Filesize
10.0MB

MD5
6281f5a39c1d8c6b9ea09052b489b25c

SHA1
c0fa6f5c96b7af64797f67903bf73330450d5437

SHA256
ce6f198ade18423e7a2858cb487c955f02cb62459225e45310042a43ff65eee7

SHA512
49271ae5240a494d16a896537b6f63bcbae8c9ad26906da9ff459f17f8c2a86b303cbedf48922eca47227d97d34e8ae4502a033cc2631a4695bde443d5be1924

Download Submit
memory/2732-17-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2944-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2944-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2944-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2944-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2944-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/3056-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3056-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3056-8-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download
memory/3056-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3056-1-0x00000000005D0000-0x00000000006D0000-memory.dmp

Filesize
1024KB

Download
memory/3056-2-0x0000000000220000-0x0000000000233000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads