tofsee | 0e922b25dd21ab718e6c5ed21c1b8ca0ca0a2030b4a9be1e7665b7cfc64cac23

General

Target

2025-03-30_5dd28166fc5dac61d79f2240608b7cd5_rhadamanthys_smoke-loader.exe
Size

12.4MB
MD5

5dd28166fc5dac61d79f2240608b7cd5
SHA1

b11feac319f8dacbddd8cdcd241d4f4431c167db
SHA256

0e922b25dd21ab718e6c5ed21c1b8ca0ca0a2030b4a9be1e7665b7cfc64cac23
SHA512

cc02d00ad6a8da7eb5a50f5c110651b46b470f291cef707b743b550decebc10adb6446a6c386807fc1a51d14931f7db9459ad9b77ed3b2ba2a6553b6d486a08e
SSDEEP

49152:V/hNzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzD:VpZ

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
5444	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\eobatvoa\ImagePath = "C:\\Windows\\SysWOW64\\eobatvoa\\tgspivak.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-1-5-21-446031748-3036493239-2009529691-1000\Control Panel\International\Geo\Nation	2025-03-30_5dd28166fc5dac61d79f2240608b7cd5_rhadamanthys_smoke-loader.exe

Deletes itself 1 IoCs

pid	Process
5692	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
5696	tgspivak.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5696 set thread context of 5692	5696	tgspivak.exe	108

Launches sc.exe 3 IoCs

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

pid	Process
4724	sc.exe
4976	sc.exe
4996	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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2516	1616	WerFault.exe	85
2396	5696	WerFault.exe	103

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	sc.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	tgspivak.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	2025-03-30_5dd28166fc5dac61d79f2240608b7cd5_rhadamanthys_smoke-loader.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1616 wrote to memory of 3760	1616	2025-03-30_5dd28166fc5dac61d79f2240608b7cd5_rhadamanthys_smoke-loader.exe	89
PID 1616 wrote to memory of 3760	1616	2025-03-30_5dd28166fc5dac61d79f2240608b7cd5_rhadamanthys_smoke-loader.exe	89
PID 1616 wrote to memory of 3760	1616	2025-03-30_5dd28166fc5dac61d79f2240608b7cd5_rhadamanthys_smoke-loader.exe	89
PID 1616 wrote to memory of 4552	1616	2025-03-30_5dd28166fc5dac61d79f2240608b7cd5_rhadamanthys_smoke-loader.exe	91
PID 1616 wrote to memory of 4552	1616	2025-03-30_5dd28166fc5dac61d79f2240608b7cd5_rhadamanthys_smoke-loader.exe	91
PID 1616 wrote to memory of 4552	1616	2025-03-30_5dd28166fc5dac61d79f2240608b7cd5_rhadamanthys_smoke-loader.exe	91
PID 1616 wrote to memory of 4724	1616	2025-03-30_5dd28166fc5dac61d79f2240608b7cd5_rhadamanthys_smoke-loader.exe	93
PID 1616 wrote to memory of 4724	1616	2025-03-30_5dd28166fc5dac61d79f2240608b7cd5_rhadamanthys_smoke-loader.exe	93
PID 1616 wrote to memory of 4724	1616	2025-03-30_5dd28166fc5dac61d79f2240608b7cd5_rhadamanthys_smoke-loader.exe	93
PID 1616 wrote to memory of 4976	1616	2025-03-30_5dd28166fc5dac61d79f2240608b7cd5_rhadamanthys_smoke-loader.exe	99
PID 1616 wrote to memory of 4976	1616	2025-03-30_5dd28166fc5dac61d79f2240608b7cd5_rhadamanthys_smoke-loader.exe	99
PID 1616 wrote to memory of 4976	1616	2025-03-30_5dd28166fc5dac61d79f2240608b7cd5_rhadamanthys_smoke-loader.exe	99
PID 1616 wrote to memory of 4996	1616	2025-03-30_5dd28166fc5dac61d79f2240608b7cd5_rhadamanthys_smoke-loader.exe	101
PID 1616 wrote to memory of 4996	1616	2025-03-30_5dd28166fc5dac61d79f2240608b7cd5_rhadamanthys_smoke-loader.exe	101
PID 1616 wrote to memory of 4996	1616	2025-03-30_5dd28166fc5dac61d79f2240608b7cd5_rhadamanthys_smoke-loader.exe	101
PID 1616 wrote to memory of 5444	1616	2025-03-30_5dd28166fc5dac61d79f2240608b7cd5_rhadamanthys_smoke-loader.exe	105
PID 1616 wrote to memory of 5444	1616	2025-03-30_5dd28166fc5dac61d79f2240608b7cd5_rhadamanthys_smoke-loader.exe	105
PID 1616 wrote to memory of 5444	1616	2025-03-30_5dd28166fc5dac61d79f2240608b7cd5_rhadamanthys_smoke-loader.exe	105
PID 5696 wrote to memory of 5692	5696	tgspivak.exe	108
PID 5696 wrote to memory of 5692	5696	tgspivak.exe	108
PID 5696 wrote to memory of 5692	5696	tgspivak.exe	108
PID 5696 wrote to memory of 5692	5696	tgspivak.exe	108
PID 5696 wrote to memory of 5692	5696	tgspivak.exe	108

C:\Users\Admin\AppData\Local\Temp\2025-03-30_5dd28166fc5dac61d79f2240608b7cd5_rhadamanthys_smoke-loader.exe
"C:\Users\Admin\AppData\Local\Temp\2025-03-30_5dd28166fc5dac61d79f2240608b7cd5_rhadamanthys_smoke-loader.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1616
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\eobatvoa\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3760
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tgspivak.exe" C:\Windows\SysWOW64\eobatvoa\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4552
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create eobatvoa binPath= "C:\Windows\SysWOW64\eobatvoa\tgspivak.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-03-30_5dd28166fc5dac61d79f2240608b7cd5_rhadamanthys_smoke-loader.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4724
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description eobatvoa "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4976
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start eobatvoa
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4996
- 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:5444
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1616 -s 1044
  2⤵
  - Program crash
  PID:2516

C:\Windows\SysWOW64\eobatvoa\tgspivak.exe
C:\Windows\SysWOW64\eobatvoa\tgspivak.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-03-30_5dd28166fc5dac61d79f2240608b7cd5_rhadamanthys_smoke-loader.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5696
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:5692
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5696 -s 516
  2⤵
  - Program crash
  PID:2396

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 5696 -ip 5696
1⤵
PID:1080

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1616 -ip 1616
1⤵
PID:1300

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\tgspivak.exe

Filesize
11.7MB

MD5
bde73428565a16bb610d1dc68ad96510

SHA1
cad229837125c3e483ce57b54c63f52a55a166e6

SHA256
c338679cd0edbacc2fa3e270f47c8bae38c1f6a0b1b1a0b31083dd455e7f3572

SHA512
ce7dea7f66daf928b2562d72233b8e6348d8cf928e204aff852db6313986842c677e818a780b5c11af4b69788096545c4564e15c2654b1abc008d4ed43f50102

Download Submit
memory/1616-18-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1616-1-0x00000000004F0000-0x00000000005F0000-memory.dmp

Filesize
1024KB

Download
memory/1616-2-0x0000000000A00000-0x0000000000A13000-memory.dmp

Filesize
76KB

Download
memory/1616-15-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/1616-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1616-17-0x0000000000A00000-0x0000000000A13000-memory.dmp

Filesize
76KB

Download
memory/5692-10-0x00000000009E0000-0x00000000009F5000-memory.dmp

Filesize
84KB

Download
memory/5692-13-0x00000000009E0000-0x00000000009F5000-memory.dmp

Filesize
84KB

Download
memory/5692-19-0x00000000009E0000-0x00000000009F5000-memory.dmp

Filesize
84KB

Download
memory/5692-20-0x00000000009E0000-0x00000000009F5000-memory.dmp

Filesize
84KB

Download
memory/5692-21-0x00000000009E0000-0x00000000009F5000-memory.dmp

Filesize
84KB

Download
memory/5696-16-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/5696-9-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/5696-8-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads