tofsee | c8168e252d66c907dd3f08216091330e989beb9f5f39e09a3775a9d10d157c45

General

Target

2025-02-03_65a3d9af44eb20cfc288db3372369d7d_mafia.exe
Size

11.7MB
MD5

65a3d9af44eb20cfc288db3372369d7d
SHA1

fd7c2c1fb7d3f26607fe3c5d67a9bd32d4390961
SHA256

c8168e252d66c907dd3f08216091330e989beb9f5f39e09a3775a9d10d157c45
SHA512

49b24870e57053898fc9ea7fdd552f493fee3776ac6e49bc64e12af6d420830a4299f22f2b186a2fd8f8e7525138e49e5f016a596cb8a3ad976dde43c34b3de5
SSDEEP

3072:5LBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:8OMdRQr7OB0ypmMXnl8XEPM3noSWOC

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

C2

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
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
3456	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\jvfbxpyx\ImagePath = "C:\\Windows\\SysWOW64\\jvfbxpyx\\easspedr.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-70482961-775596374-3727440602-1000\Control Panel\International\Geo\Nation	2025-02-03_65a3d9af44eb20cfc288db3372369d7d_mafia.exe

Deletes itself 1 IoCs

pid	Process
2584	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2428	easspedr.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2428 set thread context of 2584	2428	easspedr.exe	104

Launches sc.exe 3 IoCs

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

pid	Process
1432	sc.exe
5012	sc.exe
3460	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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3672	452	WerFault.exe	82
2292	2428	WerFault.exe	98

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	2025-02-03_65a3d9af44eb20cfc288db3372369d7d_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	easspedr.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	svchost.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 452 wrote to memory of 2912	452	2025-02-03_65a3d9af44eb20cfc288db3372369d7d_mafia.exe	88
PID 452 wrote to memory of 2912	452	2025-02-03_65a3d9af44eb20cfc288db3372369d7d_mafia.exe	88
PID 452 wrote to memory of 2912	452	2025-02-03_65a3d9af44eb20cfc288db3372369d7d_mafia.exe	88
PID 452 wrote to memory of 3068	452	2025-02-03_65a3d9af44eb20cfc288db3372369d7d_mafia.exe	90
PID 452 wrote to memory of 3068	452	2025-02-03_65a3d9af44eb20cfc288db3372369d7d_mafia.exe	90
PID 452 wrote to memory of 3068	452	2025-02-03_65a3d9af44eb20cfc288db3372369d7d_mafia.exe	90
PID 452 wrote to memory of 1432	452	2025-02-03_65a3d9af44eb20cfc288db3372369d7d_mafia.exe	92
PID 452 wrote to memory of 1432	452	2025-02-03_65a3d9af44eb20cfc288db3372369d7d_mafia.exe	92
PID 452 wrote to memory of 1432	452	2025-02-03_65a3d9af44eb20cfc288db3372369d7d_mafia.exe	92
PID 452 wrote to memory of 5012	452	2025-02-03_65a3d9af44eb20cfc288db3372369d7d_mafia.exe	94
PID 452 wrote to memory of 5012	452	2025-02-03_65a3d9af44eb20cfc288db3372369d7d_mafia.exe	94
PID 452 wrote to memory of 5012	452	2025-02-03_65a3d9af44eb20cfc288db3372369d7d_mafia.exe	94
PID 452 wrote to memory of 3460	452	2025-02-03_65a3d9af44eb20cfc288db3372369d7d_mafia.exe	96
PID 452 wrote to memory of 3460	452	2025-02-03_65a3d9af44eb20cfc288db3372369d7d_mafia.exe	96
PID 452 wrote to memory of 3460	452	2025-02-03_65a3d9af44eb20cfc288db3372369d7d_mafia.exe	96
PID 452 wrote to memory of 3456	452	2025-02-03_65a3d9af44eb20cfc288db3372369d7d_mafia.exe	99
PID 452 wrote to memory of 3456	452	2025-02-03_65a3d9af44eb20cfc288db3372369d7d_mafia.exe	99
PID 452 wrote to memory of 3456	452	2025-02-03_65a3d9af44eb20cfc288db3372369d7d_mafia.exe	99
PID 2428 wrote to memory of 2584	2428	easspedr.exe	104
PID 2428 wrote to memory of 2584	2428	easspedr.exe	104
PID 2428 wrote to memory of 2584	2428	easspedr.exe	104
PID 2428 wrote to memory of 2584	2428	easspedr.exe	104
PID 2428 wrote to memory of 2584	2428	easspedr.exe	104

C:\Users\Admin\AppData\Local\Temp\2025-02-03_65a3d9af44eb20cfc288db3372369d7d_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-03_65a3d9af44eb20cfc288db3372369d7d_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:452
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\jvfbxpyx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2912
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\easspedr.exe" C:\Windows\SysWOW64\jvfbxpyx\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3068
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create jvfbxpyx binPath= "C:\Windows\SysWOW64\jvfbxpyx\easspedr.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-03_65a3d9af44eb20cfc288db3372369d7d_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1432
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description jvfbxpyx "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:5012
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start jvfbxpyx
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3460
- 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:3456
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 452 -s 668
  2⤵
  - Program crash
  PID:3672

C:\Windows\SysWOW64\jvfbxpyx\easspedr.exe
C:\Windows\SysWOW64\jvfbxpyx\easspedr.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-03_65a3d9af44eb20cfc288db3372369d7d_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2428
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2584
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2428 -s 508
  2⤵
  - Program crash
  PID:2292

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 452 -ip 452
1⤵
PID:3276

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 2428 -ip 2428
1⤵
PID:1972

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\easspedr.exe

Filesize
13.7MB

MD5
36ad0603776f34d90e13324ccdf9732b

SHA1
d8248c185a92b9318d70a71804ebca51553f23ed

SHA256
1f44bd12254ee5f6bb61ea433d76ab8e00a6f1d8c33e3a9e4abcaba508e1fefe

SHA512
63679de0e5bafc340ba3d739622f80d4195e65c1631f2e525ea1696a8d6ae3e4f19365e6083ae4bd45cf36796416cce53c650aeaa35d9ff9f85c45f56b27194d

Download Submit
memory/452-8-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/452-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/452-2-0x0000000000490000-0x00000000004A3000-memory.dmp

Filesize
76KB

Download
memory/452-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/452-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/452-1-0x0000000000510000-0x0000000000610000-memory.dmp

Filesize
1024KB

Download
memory/2428-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2428-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2428-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2428-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2584-14-0x0000000000A10000-0x0000000000A25000-memory.dmp

Filesize
84KB

Download
memory/2584-16-0x0000000000A10000-0x0000000000A25000-memory.dmp

Filesize
84KB

Download
memory/2584-17-0x0000000000A10000-0x0000000000A25000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads