tofsee | dc1457831a3170e63c3bc791a963c11f1cf670862c7f9c65d4813b97c54ccf66

Analysis

max time kernel
144s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
31-01-2025 20:03

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General

Target

2025-01-31_aaf8e49d400422b269c8ae719a1fa882_mafia.exe
Size

14.7MB
MD5

aaf8e49d400422b269c8ae719a1fa882
SHA1

f2bd9b6119558167165030f0b4f5c3fb632e456f
SHA256

dc1457831a3170e63c3bc791a963c11f1cf670862c7f9c65d4813b97c54ccf66
SHA512

267f2de50c70bee415f67c706227b5a66d2785d2e745a013e54aa7c6ea88296fa0c53455bca168d4e05fa11690cbd629cd9bde751e8f2719c681edfc3b9a7bc2
SSDEEP

3072:ULBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:ROMdRQr7OB0ypmMXnl8XEPM3noSWOC

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\rcaieiml = "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
2488	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\rcaieiml\ImagePath = "C:\\Windows\\SysWOW64\\rcaieiml\\gsrfqaic.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2572	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2820	gsrfqaic.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2820 set thread context of 2572	2820	gsrfqaic.exe	39

Launches sc.exe 3 IoCs

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

pid	Process
1988	sc.exe
2092	sc.exe
2660	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	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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-31_aaf8e49d400422b269c8ae719a1fa882_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gsrfqaic.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1344 wrote to memory of 3060	1344	2025-01-31_aaf8e49d400422b269c8ae719a1fa882_mafia.exe	28
PID 1344 wrote to memory of 3060	1344	2025-01-31_aaf8e49d400422b269c8ae719a1fa882_mafia.exe	28
PID 1344 wrote to memory of 3060	1344	2025-01-31_aaf8e49d400422b269c8ae719a1fa882_mafia.exe	28
PID 1344 wrote to memory of 3060	1344	2025-01-31_aaf8e49d400422b269c8ae719a1fa882_mafia.exe	28
PID 1344 wrote to memory of 2680	1344	2025-01-31_aaf8e49d400422b269c8ae719a1fa882_mafia.exe	30
PID 1344 wrote to memory of 2680	1344	2025-01-31_aaf8e49d400422b269c8ae719a1fa882_mafia.exe	30
PID 1344 wrote to memory of 2680	1344	2025-01-31_aaf8e49d400422b269c8ae719a1fa882_mafia.exe	30
PID 1344 wrote to memory of 2680	1344	2025-01-31_aaf8e49d400422b269c8ae719a1fa882_mafia.exe	30
PID 1344 wrote to memory of 1988	1344	2025-01-31_aaf8e49d400422b269c8ae719a1fa882_mafia.exe	32
PID 1344 wrote to memory of 1988	1344	2025-01-31_aaf8e49d400422b269c8ae719a1fa882_mafia.exe	32
PID 1344 wrote to memory of 1988	1344	2025-01-31_aaf8e49d400422b269c8ae719a1fa882_mafia.exe	32
PID 1344 wrote to memory of 1988	1344	2025-01-31_aaf8e49d400422b269c8ae719a1fa882_mafia.exe	32
PID 1344 wrote to memory of 2092	1344	2025-01-31_aaf8e49d400422b269c8ae719a1fa882_mafia.exe	34
PID 1344 wrote to memory of 2092	1344	2025-01-31_aaf8e49d400422b269c8ae719a1fa882_mafia.exe	34
PID 1344 wrote to memory of 2092	1344	2025-01-31_aaf8e49d400422b269c8ae719a1fa882_mafia.exe	34
PID 1344 wrote to memory of 2092	1344	2025-01-31_aaf8e49d400422b269c8ae719a1fa882_mafia.exe	34
PID 1344 wrote to memory of 2660	1344	2025-01-31_aaf8e49d400422b269c8ae719a1fa882_mafia.exe	36
PID 1344 wrote to memory of 2660	1344	2025-01-31_aaf8e49d400422b269c8ae719a1fa882_mafia.exe	36
PID 1344 wrote to memory of 2660	1344	2025-01-31_aaf8e49d400422b269c8ae719a1fa882_mafia.exe	36
PID 1344 wrote to memory of 2660	1344	2025-01-31_aaf8e49d400422b269c8ae719a1fa882_mafia.exe	36
PID 2820 wrote to memory of 2572	2820	gsrfqaic.exe	39
PID 2820 wrote to memory of 2572	2820	gsrfqaic.exe	39
PID 2820 wrote to memory of 2572	2820	gsrfqaic.exe	39
PID 2820 wrote to memory of 2572	2820	gsrfqaic.exe	39
PID 2820 wrote to memory of 2572	2820	gsrfqaic.exe	39
PID 2820 wrote to memory of 2572	2820	gsrfqaic.exe	39
PID 1344 wrote to memory of 2488	1344	2025-01-31_aaf8e49d400422b269c8ae719a1fa882_mafia.exe	40
PID 1344 wrote to memory of 2488	1344	2025-01-31_aaf8e49d400422b269c8ae719a1fa882_mafia.exe	40
PID 1344 wrote to memory of 2488	1344	2025-01-31_aaf8e49d400422b269c8ae719a1fa882_mafia.exe	40
PID 1344 wrote to memory of 2488	1344	2025-01-31_aaf8e49d400422b269c8ae719a1fa882_mafia.exe	40

C:\Users\Admin\AppData\Local\Temp\2025-01-31_aaf8e49d400422b269c8ae719a1fa882_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-31_aaf8e49d400422b269c8ae719a1fa882_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1344
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rcaieiml\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3060
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gsrfqaic.exe" C:\Windows\SysWOW64\rcaieiml\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2680
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create rcaieiml binPath= "C:\Windows\SysWOW64\rcaieiml\gsrfqaic.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_aaf8e49d400422b269c8ae719a1fa882_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1988
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description rcaieiml "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2092
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start rcaieiml
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2660
- 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:2488

C:\Windows\SysWOW64\rcaieiml\gsrfqaic.exe
C:\Windows\SysWOW64\rcaieiml\gsrfqaic.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_aaf8e49d400422b269c8ae719a1fa882_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2820
- 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:2572

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\gsrfqaic.exe

Filesize
14.8MB

MD5
ab404afc58881a8e5c94a1dc1d416ae6

SHA1
f7a3ede8e43c405f1da8954b3020c73f7b02a7e2

SHA256
d9b976e02163f75e2e671a68e1721dddc31fd3adbafd11c0e2710b1fc3177662

SHA512
0352494d982ec428e33881f6253cd35d1dc68281d297a49c75b8ad6428392403c2819ba1cd03fe360a9de354bfeacd29af2d82858ea93cc25efb564caa2efefa

Download Submit
memory/1344-14-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1344-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1344-1-0x0000000000610000-0x0000000000710000-memory.dmp

Filesize
1024KB

Download
memory/1344-15-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1344-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1344-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2572-8-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2572-11-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2572-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2572-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2572-18-0x00000000000C0000-0x00000000000D5000-memory.dmp

Filesize
84KB

Download
memory/2820-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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