tofsee | 77288fcd3e18e83fc6bfcfb138f229bcf224ea580a731ad7da68e48d4efc0c2f

Analysis

max time kernel
146s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06-02-2025 03:07

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General

Target

2025-02-06_e1a41009719f24351fdb86cb08327975_mafia.exe
Size

14.5MB
MD5

e1a41009719f24351fdb86cb08327975
SHA1

e926304291d60be6fdc8a5d4fbe912789a576120
SHA256

77288fcd3e18e83fc6bfcfb138f229bcf224ea580a731ad7da68e48d4efc0c2f
SHA512

eac60911b15fec1f4fbb10103091f48c5aacfc7b41378d857c37856f97d1927cae70f5d4bd27e46575f0c2f06a465236a41646908a5841e7a4d5c58c6660ade7
SSDEEP

49152:dqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPy:dqtYc3h

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\iiruppae = "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
2912	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\iiruppae\ImagePath = "C:\\Windows\\SysWOW64\\iiruppae\\uzjeykhj.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2984	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2712	uzjeykhj.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2712 set thread context of 2984	2712	uzjeykhj.exe	43

Launches sc.exe 3 IoCs

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

pid	Process
2812	sc.exe
2800	sc.exe
2788	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	uzjeykhj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-06_e1a41009719f24351fdb86cb08327975_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	netsh.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2156 wrote to memory of 2004	2156	2025-02-06_e1a41009719f24351fdb86cb08327975_mafia.exe	30
PID 2156 wrote to memory of 2004	2156	2025-02-06_e1a41009719f24351fdb86cb08327975_mafia.exe	30
PID 2156 wrote to memory of 2004	2156	2025-02-06_e1a41009719f24351fdb86cb08327975_mafia.exe	30
PID 2156 wrote to memory of 2004	2156	2025-02-06_e1a41009719f24351fdb86cb08327975_mafia.exe	30
PID 2156 wrote to memory of 1424	2156	2025-02-06_e1a41009719f24351fdb86cb08327975_mafia.exe	32
PID 2156 wrote to memory of 1424	2156	2025-02-06_e1a41009719f24351fdb86cb08327975_mafia.exe	32
PID 2156 wrote to memory of 1424	2156	2025-02-06_e1a41009719f24351fdb86cb08327975_mafia.exe	32
PID 2156 wrote to memory of 1424	2156	2025-02-06_e1a41009719f24351fdb86cb08327975_mafia.exe	32
PID 2156 wrote to memory of 2788	2156	2025-02-06_e1a41009719f24351fdb86cb08327975_mafia.exe	34
PID 2156 wrote to memory of 2788	2156	2025-02-06_e1a41009719f24351fdb86cb08327975_mafia.exe	34
PID 2156 wrote to memory of 2788	2156	2025-02-06_e1a41009719f24351fdb86cb08327975_mafia.exe	34
PID 2156 wrote to memory of 2788	2156	2025-02-06_e1a41009719f24351fdb86cb08327975_mafia.exe	34
PID 2156 wrote to memory of 2812	2156	2025-02-06_e1a41009719f24351fdb86cb08327975_mafia.exe	36
PID 2156 wrote to memory of 2812	2156	2025-02-06_e1a41009719f24351fdb86cb08327975_mafia.exe	36
PID 2156 wrote to memory of 2812	2156	2025-02-06_e1a41009719f24351fdb86cb08327975_mafia.exe	36
PID 2156 wrote to memory of 2812	2156	2025-02-06_e1a41009719f24351fdb86cb08327975_mafia.exe	36
PID 2156 wrote to memory of 2800	2156	2025-02-06_e1a41009719f24351fdb86cb08327975_mafia.exe	38
PID 2156 wrote to memory of 2800	2156	2025-02-06_e1a41009719f24351fdb86cb08327975_mafia.exe	38
PID 2156 wrote to memory of 2800	2156	2025-02-06_e1a41009719f24351fdb86cb08327975_mafia.exe	38
PID 2156 wrote to memory of 2800	2156	2025-02-06_e1a41009719f24351fdb86cb08327975_mafia.exe	38
PID 2156 wrote to memory of 2912	2156	2025-02-06_e1a41009719f24351fdb86cb08327975_mafia.exe	41
PID 2156 wrote to memory of 2912	2156	2025-02-06_e1a41009719f24351fdb86cb08327975_mafia.exe	41
PID 2156 wrote to memory of 2912	2156	2025-02-06_e1a41009719f24351fdb86cb08327975_mafia.exe	41
PID 2156 wrote to memory of 2912	2156	2025-02-06_e1a41009719f24351fdb86cb08327975_mafia.exe	41
PID 2712 wrote to memory of 2984	2712	uzjeykhj.exe	43
PID 2712 wrote to memory of 2984	2712	uzjeykhj.exe	43
PID 2712 wrote to memory of 2984	2712	uzjeykhj.exe	43
PID 2712 wrote to memory of 2984	2712	uzjeykhj.exe	43
PID 2712 wrote to memory of 2984	2712	uzjeykhj.exe	43
PID 2712 wrote to memory of 2984	2712	uzjeykhj.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-06_e1a41009719f24351fdb86cb08327975_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-06_e1a41009719f24351fdb86cb08327975_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2156
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\iiruppae\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2004
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\uzjeykhj.exe" C:\Windows\SysWOW64\iiruppae\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1424
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create iiruppae binPath= "C:\Windows\SysWOW64\iiruppae\uzjeykhj.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-06_e1a41009719f24351fdb86cb08327975_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2788
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description iiruppae "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2812
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start iiruppae
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2800
- 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:2912

C:\Windows\SysWOW64\iiruppae\uzjeykhj.exe
C:\Windows\SysWOW64\iiruppae\uzjeykhj.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-06_e1a41009719f24351fdb86cb08327975_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2712
- 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:2984

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\uzjeykhj.exe

Filesize
10.3MB

MD5
b1e4712e24c7b3b184452ef9b976e5e7

SHA1
4f1ee90dc05a8df78a88b8d17c5702ff7d320c7d

SHA256
0057edbb14725994c5fc6e21d41d8939e21585a070c554f8952473bd5c0f41c5

SHA512
af1e2553e91adac0c5ab19f52abf5d2fabe50ba56e72117a7b524349a7ce81d84209779bf4d5bc3dd40b307f1dae120bb9c4e9ccd16e14fc3eb55dc77bebbc65

Download Submit
memory/2156-7-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2156-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2156-1-0x0000000002ED0000-0x0000000002FD0000-memory.dmp

Filesize
1024KB

Download
memory/2156-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2156-8-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2156-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/2712-17-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/2984-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2984-16-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2984-14-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2984-11-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download
memory/2984-18-0x0000000000080000-0x0000000000095000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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