tofsee | cd2c46dd35a7788252e69365bac207bf99fcc9873d09cbb31937369117bfebeb

General

Target

2025-01-29_70752e5e70811da5dd76e3e6b585c032_mafia.exe
Size

11.9MB
MD5

70752e5e70811da5dd76e3e6b585c032
SHA1

3964d27309e610482edd1b85f1538e3e5d1f8db7
SHA256

cd2c46dd35a7788252e69365bac207bf99fcc9873d09cbb31937369117bfebeb
SHA512

e6d9432ad8bc63a78752bc37a5d1270c59ca2bf75d5d6e30d4f3a2d5ad53acafa4ccf07c8aa5c56dc2a392e704d15df054077f21588af48a25b5d5c23cc08b3b
SSDEEP

24576:yEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZn:Lfot

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
4324	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\ljxdjivg\ImagePath = "C:\\Windows\\SysWOW64\\ljxdjivg\\xswoeprp.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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	2025-01-29_70752e5e70811da5dd76e3e6b585c032_mafia.exe

Deletes itself 1 IoCs

pid	Process
4704	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4800	xswoeprp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4800 set thread context of 4704	4800	xswoeprp.exe	98

Launches sc.exe 3 IoCs

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

pid	Process
3164	sc.exe
4152	sc.exe
1464	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
2812	1116	WerFault.exe	81
1836	4800	WerFault.exe	92

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	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	xswoeprp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-29_70752e5e70811da5dd76e3e6b585c032_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

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1116 wrote to memory of 1788	1116	2025-01-29_70752e5e70811da5dd76e3e6b585c032_mafia.exe	82
PID 1116 wrote to memory of 1788	1116	2025-01-29_70752e5e70811da5dd76e3e6b585c032_mafia.exe	82
PID 1116 wrote to memory of 1788	1116	2025-01-29_70752e5e70811da5dd76e3e6b585c032_mafia.exe	82
PID 1116 wrote to memory of 3436	1116	2025-01-29_70752e5e70811da5dd76e3e6b585c032_mafia.exe	84
PID 1116 wrote to memory of 3436	1116	2025-01-29_70752e5e70811da5dd76e3e6b585c032_mafia.exe	84
PID 1116 wrote to memory of 3436	1116	2025-01-29_70752e5e70811da5dd76e3e6b585c032_mafia.exe	84
PID 1116 wrote to memory of 3164	1116	2025-01-29_70752e5e70811da5dd76e3e6b585c032_mafia.exe	86
PID 1116 wrote to memory of 3164	1116	2025-01-29_70752e5e70811da5dd76e3e6b585c032_mafia.exe	86
PID 1116 wrote to memory of 3164	1116	2025-01-29_70752e5e70811da5dd76e3e6b585c032_mafia.exe	86
PID 1116 wrote to memory of 4152	1116	2025-01-29_70752e5e70811da5dd76e3e6b585c032_mafia.exe	88
PID 1116 wrote to memory of 4152	1116	2025-01-29_70752e5e70811da5dd76e3e6b585c032_mafia.exe	88
PID 1116 wrote to memory of 4152	1116	2025-01-29_70752e5e70811da5dd76e3e6b585c032_mafia.exe	88
PID 1116 wrote to memory of 1464	1116	2025-01-29_70752e5e70811da5dd76e3e6b585c032_mafia.exe	90
PID 1116 wrote to memory of 1464	1116	2025-01-29_70752e5e70811da5dd76e3e6b585c032_mafia.exe	90
PID 1116 wrote to memory of 1464	1116	2025-01-29_70752e5e70811da5dd76e3e6b585c032_mafia.exe	90
PID 1116 wrote to memory of 4324	1116	2025-01-29_70752e5e70811da5dd76e3e6b585c032_mafia.exe	93
PID 1116 wrote to memory of 4324	1116	2025-01-29_70752e5e70811da5dd76e3e6b585c032_mafia.exe	93
PID 1116 wrote to memory of 4324	1116	2025-01-29_70752e5e70811da5dd76e3e6b585c032_mafia.exe	93
PID 4800 wrote to memory of 4704	4800	xswoeprp.exe	98
PID 4800 wrote to memory of 4704	4800	xswoeprp.exe	98
PID 4800 wrote to memory of 4704	4800	xswoeprp.exe	98
PID 4800 wrote to memory of 4704	4800	xswoeprp.exe	98
PID 4800 wrote to memory of 4704	4800	xswoeprp.exe	98

C:\Users\Admin\AppData\Local\Temp\2025-01-29_70752e5e70811da5dd76e3e6b585c032_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-29_70752e5e70811da5dd76e3e6b585c032_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1116
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ljxdjivg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1788
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xswoeprp.exe" C:\Windows\SysWOW64\ljxdjivg\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3436
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create ljxdjivg binPath= "C:\Windows\SysWOW64\ljxdjivg\xswoeprp.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-29_70752e5e70811da5dd76e3e6b585c032_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3164
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description ljxdjivg "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4152
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start ljxdjivg
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1464
- 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:4324
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1116 -s 1044
  2⤵
  - Program crash
  PID:2812

C:\Windows\SysWOW64\ljxdjivg\xswoeprp.exe
C:\Windows\SysWOW64\ljxdjivg\xswoeprp.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-29_70752e5e70811da5dd76e3e6b585c032_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4800
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4704
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4800 -s 512
  2⤵
  - Program crash
  PID:1836

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1116 -ip 1116
1⤵
PID:1560

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 4800 -ip 4800
1⤵
PID:3600

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

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Downloads

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

Filesize
14.4MB

MD5
a2984597331a8be73f5238c6e4072277

SHA1
8b2c2040bbf391c2eace6251dc7f41c3fcc147de

SHA256
100ee4981f26fb5d937441fbc068f06a17ebb68fe2deab706772d847079ff834

SHA512
4e838fafd0ff617ddb7c9b7d8135133576b04b31734da4a24864cefc65b35ceac546fc766615eed87fe5f05630feb9b816272506d16bac71eccccf8da726e16b

Download Submit
memory/1116-8-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/1116-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1116-2-0x00000000001C0000-0x00000000001D3000-memory.dmp

Filesize
76KB

Download
memory/1116-9-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1116-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1116-1-0x0000000000510000-0x0000000000610000-memory.dmp

Filesize
1024KB

Download
memory/4704-14-0x0000000000AB0000-0x0000000000AC5000-memory.dmp

Filesize
84KB

Download
memory/4704-16-0x0000000000AB0000-0x0000000000AC5000-memory.dmp

Filesize
84KB

Download
memory/4704-17-0x0000000000AB0000-0x0000000000AC5000-memory.dmp

Filesize
84KB

Download
memory/4800-12-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4800-11-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4800-13-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4800-19-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads