tofsee | f910be8024c5f6931df0bf7e60d1f58fc619b623d58d766f458421089c1335b9

Analysis

max time kernel
144s
max time network
120s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
28-01-2025 17:37

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General

Target

2025-01-28_84921bf0e6e24498a4280d23e50e7ce7_mafia.exe
Size

11.5MB
MD5

84921bf0e6e24498a4280d23e50e7ce7
SHA1

f3adf8e7faaf0d66f43b15a117374f81d52f858c
SHA256

f910be8024c5f6931df0bf7e60d1f58fc619b623d58d766f458421089c1335b9
SHA512

d4c53096032e1ad49df32ac0574e38c68e29e5bda151676201d58443fe6f3c0a7199f284d619b5ee75f623820976d464485a2627bd3b0c370f4335d90d599dc8
SSDEEP

196608:MyXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXn:RXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX3

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\olvhihin = "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
2808	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\olvhihin\ImagePath = "C:\\Windows\\SysWOW64\\olvhihin\\duqxonrv.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2684	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2964	duqxonrv.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2964 set thread context of 2684	2964	duqxonrv.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2884	sc.exe
2268	sc.exe
1780	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

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-28_84921bf0e6e24498a4280d23e50e7ce7_mafia.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	duqxonrv.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

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1080 wrote to memory of 2092	1080	2025-01-28_84921bf0e6e24498a4280d23e50e7ce7_mafia.exe	31
PID 1080 wrote to memory of 2092	1080	2025-01-28_84921bf0e6e24498a4280d23e50e7ce7_mafia.exe	31
PID 1080 wrote to memory of 2092	1080	2025-01-28_84921bf0e6e24498a4280d23e50e7ce7_mafia.exe	31
PID 1080 wrote to memory of 2092	1080	2025-01-28_84921bf0e6e24498a4280d23e50e7ce7_mafia.exe	31
PID 1080 wrote to memory of 2504	1080	2025-01-28_84921bf0e6e24498a4280d23e50e7ce7_mafia.exe	33
PID 1080 wrote to memory of 2504	1080	2025-01-28_84921bf0e6e24498a4280d23e50e7ce7_mafia.exe	33
PID 1080 wrote to memory of 2504	1080	2025-01-28_84921bf0e6e24498a4280d23e50e7ce7_mafia.exe	33
PID 1080 wrote to memory of 2504	1080	2025-01-28_84921bf0e6e24498a4280d23e50e7ce7_mafia.exe	33
PID 1080 wrote to memory of 2268	1080	2025-01-28_84921bf0e6e24498a4280d23e50e7ce7_mafia.exe	35
PID 1080 wrote to memory of 2268	1080	2025-01-28_84921bf0e6e24498a4280d23e50e7ce7_mafia.exe	35
PID 1080 wrote to memory of 2268	1080	2025-01-28_84921bf0e6e24498a4280d23e50e7ce7_mafia.exe	35
PID 1080 wrote to memory of 2268	1080	2025-01-28_84921bf0e6e24498a4280d23e50e7ce7_mafia.exe	35
PID 1080 wrote to memory of 1780	1080	2025-01-28_84921bf0e6e24498a4280d23e50e7ce7_mafia.exe	37
PID 1080 wrote to memory of 1780	1080	2025-01-28_84921bf0e6e24498a4280d23e50e7ce7_mafia.exe	37
PID 1080 wrote to memory of 1780	1080	2025-01-28_84921bf0e6e24498a4280d23e50e7ce7_mafia.exe	37
PID 1080 wrote to memory of 1780	1080	2025-01-28_84921bf0e6e24498a4280d23e50e7ce7_mafia.exe	37
PID 1080 wrote to memory of 2884	1080	2025-01-28_84921bf0e6e24498a4280d23e50e7ce7_mafia.exe	39
PID 1080 wrote to memory of 2884	1080	2025-01-28_84921bf0e6e24498a4280d23e50e7ce7_mafia.exe	39
PID 1080 wrote to memory of 2884	1080	2025-01-28_84921bf0e6e24498a4280d23e50e7ce7_mafia.exe	39
PID 1080 wrote to memory of 2884	1080	2025-01-28_84921bf0e6e24498a4280d23e50e7ce7_mafia.exe	39
PID 1080 wrote to memory of 2808	1080	2025-01-28_84921bf0e6e24498a4280d23e50e7ce7_mafia.exe	42
PID 1080 wrote to memory of 2808	1080	2025-01-28_84921bf0e6e24498a4280d23e50e7ce7_mafia.exe	42
PID 1080 wrote to memory of 2808	1080	2025-01-28_84921bf0e6e24498a4280d23e50e7ce7_mafia.exe	42
PID 1080 wrote to memory of 2808	1080	2025-01-28_84921bf0e6e24498a4280d23e50e7ce7_mafia.exe	42
PID 2964 wrote to memory of 2684	2964	duqxonrv.exe	43
PID 2964 wrote to memory of 2684	2964	duqxonrv.exe	43
PID 2964 wrote to memory of 2684	2964	duqxonrv.exe	43
PID 2964 wrote to memory of 2684	2964	duqxonrv.exe	43
PID 2964 wrote to memory of 2684	2964	duqxonrv.exe	43
PID 2964 wrote to memory of 2684	2964	duqxonrv.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-01-28_84921bf0e6e24498a4280d23e50e7ce7_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-28_84921bf0e6e24498a4280d23e50e7ce7_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1080
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\olvhihin\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2092
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\duqxonrv.exe" C:\Windows\SysWOW64\olvhihin\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2504
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create olvhihin binPath= "C:\Windows\SysWOW64\olvhihin\duqxonrv.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-28_84921bf0e6e24498a4280d23e50e7ce7_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2268
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description olvhihin "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1780
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start olvhihin
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2884
- 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:2808

C:\Windows\SysWOW64\olvhihin\duqxonrv.exe
C:\Windows\SysWOW64\olvhihin\duqxonrv.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-28_84921bf0e6e24498a4280d23e50e7ce7_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2964
- 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:2684

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\duqxonrv.exe

Filesize
10.8MB

MD5
e2de73ce576c71604009ba41f03d0b49

SHA1
7993b5b097741282cfb9cf402851d9f59d540bf6

SHA256
15a36c5f530c42244af14217a6e458050eeac2aeaef4f30c69a66d3667461aa4

SHA512
cf22fb57f5830cebb5b5a4c4fd4b2b85114e3ee2284adfb870406f3f009a31b00a0f219bc7583c7fe0a2d3f0552e64f8239aa2197d536d7e1279c81b2835999e

Download Submit
memory/1080-9-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1080-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1080-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1080-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1080-1-0x00000000005B0000-0x00000000006B0000-memory.dmp

Filesize
1024KB

Download
memory/1080-8-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/2684-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2684-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2684-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2684-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2684-17-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2684-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2964-15-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads