tofsee | 628ccd4dbfe7d2d629dfa55028be82a83abc8708d0d21cd00609127dd719f49c

General

Target

2025-01-31_f93f3801be196209284d88bed8c0d70b_mafia.exe
Size

10.4MB
MD5

f93f3801be196209284d88bed8c0d70b
SHA1

21e4996492e96ac8741405f3a75af90a3cc9bc37
SHA256

628ccd4dbfe7d2d629dfa55028be82a83abc8708d0d21cd00609127dd719f49c
SHA512

102ec908e9622d1ea43a5b5fff4ccc1c5c9851ca30d538bdd1f644fea2ed8dcd1a4d8a284bbf55e2f59706476f5ad3640e7a4f58d49191e3d611dcd7ee3a767b
SSDEEP

6144:wLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQ1:lTYe+D2jFu+iZoUFhAz

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
2040	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\gdxqjxua\ImagePath = "C:\\Windows\\SysWOW64\\gdxqjxua\\nscxrdac.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	2025-01-31_f93f3801be196209284d88bed8c0d70b_mafia.exe

Deletes itself 1 IoCs

pid	Process
1672	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
928	nscxrdac.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 928 set thread context of 1672	928	nscxrdac.exe	93

Launches sc.exe 3 IoCs

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

pid	Process
3648	sc.exe
1960	sc.exe
3336	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

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1480	1228	WerFault.exe	81
4920	928	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-31_f93f3801be196209284d88bed8c0d70b_mafia.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	nscxrdac.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	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1228 wrote to memory of 4156	1228	2025-01-31_f93f3801be196209284d88bed8c0d70b_mafia.exe	82
PID 1228 wrote to memory of 4156	1228	2025-01-31_f93f3801be196209284d88bed8c0d70b_mafia.exe	82
PID 1228 wrote to memory of 4156	1228	2025-01-31_f93f3801be196209284d88bed8c0d70b_mafia.exe	82
PID 1228 wrote to memory of 1908	1228	2025-01-31_f93f3801be196209284d88bed8c0d70b_mafia.exe	84
PID 1228 wrote to memory of 1908	1228	2025-01-31_f93f3801be196209284d88bed8c0d70b_mafia.exe	84
PID 1228 wrote to memory of 1908	1228	2025-01-31_f93f3801be196209284d88bed8c0d70b_mafia.exe	84
PID 1228 wrote to memory of 3336	1228	2025-01-31_f93f3801be196209284d88bed8c0d70b_mafia.exe	86
PID 1228 wrote to memory of 3336	1228	2025-01-31_f93f3801be196209284d88bed8c0d70b_mafia.exe	86
PID 1228 wrote to memory of 3336	1228	2025-01-31_f93f3801be196209284d88bed8c0d70b_mafia.exe	86
PID 1228 wrote to memory of 3648	1228	2025-01-31_f93f3801be196209284d88bed8c0d70b_mafia.exe	88
PID 1228 wrote to memory of 3648	1228	2025-01-31_f93f3801be196209284d88bed8c0d70b_mafia.exe	88
PID 1228 wrote to memory of 3648	1228	2025-01-31_f93f3801be196209284d88bed8c0d70b_mafia.exe	88
PID 1228 wrote to memory of 1960	1228	2025-01-31_f93f3801be196209284d88bed8c0d70b_mafia.exe	90
PID 1228 wrote to memory of 1960	1228	2025-01-31_f93f3801be196209284d88bed8c0d70b_mafia.exe	90
PID 1228 wrote to memory of 1960	1228	2025-01-31_f93f3801be196209284d88bed8c0d70b_mafia.exe	90
PID 928 wrote to memory of 1672	928	nscxrdac.exe	93
PID 928 wrote to memory of 1672	928	nscxrdac.exe	93
PID 928 wrote to memory of 1672	928	nscxrdac.exe	93
PID 928 wrote to memory of 1672	928	nscxrdac.exe	93
PID 928 wrote to memory of 1672	928	nscxrdac.exe	93
PID 1228 wrote to memory of 2040	1228	2025-01-31_f93f3801be196209284d88bed8c0d70b_mafia.exe	95
PID 1228 wrote to memory of 2040	1228	2025-01-31_f93f3801be196209284d88bed8c0d70b_mafia.exe	95
PID 1228 wrote to memory of 2040	1228	2025-01-31_f93f3801be196209284d88bed8c0d70b_mafia.exe	95

C:\Users\Admin\AppData\Local\Temp\2025-01-31_f93f3801be196209284d88bed8c0d70b_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-31_f93f3801be196209284d88bed8c0d70b_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1228
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gdxqjxua\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4156
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\nscxrdac.exe" C:\Windows\SysWOW64\gdxqjxua\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1908
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gdxqjxua binPath= "C:\Windows\SysWOW64\gdxqjxua\nscxrdac.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_f93f3801be196209284d88bed8c0d70b_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3336
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gdxqjxua "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:3648
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gdxqjxua
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:1960
- 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:2040
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1228 -s 1036
  2⤵
  - Program crash
  PID:1480

C:\Windows\SysWOW64\gdxqjxua\nscxrdac.exe
C:\Windows\SysWOW64\gdxqjxua\nscxrdac.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_f93f3801be196209284d88bed8c0d70b_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:928
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1672
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 928 -s 532
  2⤵
  - Program crash
  PID:4920

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1228 -ip 1228
1⤵
PID:2592

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 928 -ip 928
1⤵
PID:1652

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\nscxrdac.exe

Filesize
10.6MB

MD5
6a0510aa47c5d9be85589f700cd40750

SHA1
f4e65fd80dd44c73df00c012cd20882f0b5c7aed

SHA256
e33eac8bff33fcba3217deef0b701f728f82023a46f6e7cbe0d52d4572e0fc71

SHA512
1a1cdf2807f90dfff9e58ca614a28d27699e52672a82e461306b4f6b7e97b4b9ca8fab94e5fc2e2ac305844a37bec1cad6fce19fb393740bb42a2bb6ba006aa6

Download Submit
memory/928-19-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/928-9-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/928-10-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/928-8-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/1228-16-0x0000000000510000-0x0000000000523000-memory.dmp

Filesize
76KB

Download
memory/1228-2-0x0000000000510000-0x0000000000523000-memory.dmp

Filesize
76KB

Download
memory/1228-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1228-17-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1228-15-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/1228-1-0x0000000000690000-0x0000000000790000-memory.dmp

Filesize
1024KB

Download
memory/1672-14-0x0000000000420000-0x0000000000435000-memory.dmp

Filesize
84KB

Download
memory/1672-11-0x0000000000420000-0x0000000000435000-memory.dmp

Filesize
84KB

Download
memory/1672-20-0x0000000000420000-0x0000000000435000-memory.dmp

Filesize
84KB

Download
memory/1672-21-0x0000000000420000-0x0000000000435000-memory.dmp

Filesize
84KB

Download
memory/1672-22-0x0000000000420000-0x0000000000435000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads