tofsee | 8bb9c66cc73b87c00009d7242459b2076fe1f3abade22c59acda2ec7d6b84f4e

Analysis

max time kernel
143s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
01-02-2025 20:31

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General

Target

2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe
Size

13.3MB
MD5

aa8d578acf6c92b0968b8c7dbf672948
SHA1

0fa983431334849b7e4cef6ed327a8c128f25119
SHA256

8bb9c66cc73b87c00009d7242459b2076fe1f3abade22c59acda2ec7d6b84f4e
SHA512

30d04bd9e56ef823396d6b06d3b235b18f237da42b12585f36054eb3c62bfbc6f90bc411a1906a371410028b62d6b4711808edd32374ddff57fb6ead068ed8ae
SSDEEP

24576:86WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQ4:RWdLQk

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\upypehsm = "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
2632	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\upypehsm\ImagePath = "C:\\Windows\\SysWOW64\\upypehsm\\trabkgvr.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
1996	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2588	trabkgvr.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2588 set thread context of 1996	2588	trabkgvr.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2816	sc.exe
2604	sc.exe
2560	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	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_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	svchost.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	trabkgvr.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2764 wrote to memory of 2960	2764	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	30
PID 2764 wrote to memory of 2960	2764	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	30
PID 2764 wrote to memory of 2960	2764	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	30
PID 2764 wrote to memory of 2960	2764	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	30
PID 2764 wrote to memory of 2832	2764	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	32
PID 2764 wrote to memory of 2832	2764	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	32
PID 2764 wrote to memory of 2832	2764	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	32
PID 2764 wrote to memory of 2832	2764	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	32
PID 2764 wrote to memory of 2816	2764	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	34
PID 2764 wrote to memory of 2816	2764	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	34
PID 2764 wrote to memory of 2816	2764	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	34
PID 2764 wrote to memory of 2816	2764	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	34
PID 2764 wrote to memory of 2604	2764	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	36
PID 2764 wrote to memory of 2604	2764	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	36
PID 2764 wrote to memory of 2604	2764	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	36
PID 2764 wrote to memory of 2604	2764	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	36
PID 2764 wrote to memory of 2560	2764	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	38
PID 2764 wrote to memory of 2560	2764	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	38
PID 2764 wrote to memory of 2560	2764	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	38
PID 2764 wrote to memory of 2560	2764	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	38
PID 2764 wrote to memory of 2632	2764	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	41
PID 2764 wrote to memory of 2632	2764	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	41
PID 2764 wrote to memory of 2632	2764	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	41
PID 2764 wrote to memory of 2632	2764	2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe	41
PID 2588 wrote to memory of 1996	2588	trabkgvr.exe	43
PID 2588 wrote to memory of 1996	2588	trabkgvr.exe	43
PID 2588 wrote to memory of 1996	2588	trabkgvr.exe	43
PID 2588 wrote to memory of 1996	2588	trabkgvr.exe	43
PID 2588 wrote to memory of 1996	2588	trabkgvr.exe	43
PID 2588 wrote to memory of 1996	2588	trabkgvr.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2764
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\upypehsm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2960
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\trabkgvr.exe" C:\Windows\SysWOW64\upypehsm\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2832
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create upypehsm binPath= "C:\Windows\SysWOW64\upypehsm\trabkgvr.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2816
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description upypehsm "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2604
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start upypehsm
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2560
- 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:2632

C:\Windows\SysWOW64\upypehsm\trabkgvr.exe
C:\Windows\SysWOW64\upypehsm\trabkgvr.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_aa8d578acf6c92b0968b8c7dbf672948_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2588
- 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:1996

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\trabkgvr.exe

Filesize
10.3MB

MD5
d27aa3b7d15b171e758fb8ec473cd02a

SHA1
d894a1327d5710b75226e581970c69e56742cf7a

SHA256
fc17cebfde80f3bf7656117d9e656dd97e104f46e68775307067aecdf94ae1dc

SHA512
4aa00aab1e3bd0184e04c4e6ee6807c0ff7888eab1d45c5cd692af0af3cd20f169285f275146e013832e5f97a711ca25223efc4a7606a3c21c5163c934a74a4b

Download Submit
memory/1996-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1996-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1996-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1996-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/1996-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2588-17-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2764-4-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2764-1-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/2764-7-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2764-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2764-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2764-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads