tofsee | 3f7c6c00a626699f95045602c394bf895d6f8e5f1ae47e42875f9448e4b2cbcc

General

Target

2025-02-06_4dac4f3814cf7bd74dc29a03337a81d4_mafia.exe
Size

14.6MB
MD5

4dac4f3814cf7bd74dc29a03337a81d4
SHA1

e8902d85c42d8c464046ef57e80fd8c0418511b0
SHA256

3f7c6c00a626699f95045602c394bf895d6f8e5f1ae47e42875f9448e4b2cbcc
SHA512

7cf54c5d8c86438180b3377793b702f940144029858093ebb7662b5bb5174bcc09332b68d3409db526088ab2ee8f8b16671d303993d5a9adad58cfe952ef92cd
SSDEEP

49152:PqE0YKr3fYPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP6:PqtYc3t

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
3004	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\gmyawqge\ImagePath = "C:\\Windows\\SysWOW64\\gmyawqge\\wrvndoqo.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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	2025-02-06_4dac4f3814cf7bd74dc29a03337a81d4_mafia.exe

Deletes itself 1 IoCs

pid	Process
1292	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4108	wrvndoqo.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4108 set thread context of 1292	4108	wrvndoqo.exe	93

Launches sc.exe 3 IoCs

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

pid	Process
2640	sc.exe
4308	sc.exe
4144	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
3176	3484	WerFault.exe	81
5104	4108	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	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wrvndoqo.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-06_4dac4f3814cf7bd74dc29a03337a81d4_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3484 wrote to memory of 2060	3484	2025-02-06_4dac4f3814cf7bd74dc29a03337a81d4_mafia.exe	82
PID 3484 wrote to memory of 2060	3484	2025-02-06_4dac4f3814cf7bd74dc29a03337a81d4_mafia.exe	82
PID 3484 wrote to memory of 2060	3484	2025-02-06_4dac4f3814cf7bd74dc29a03337a81d4_mafia.exe	82
PID 3484 wrote to memory of 1824	3484	2025-02-06_4dac4f3814cf7bd74dc29a03337a81d4_mafia.exe	84
PID 3484 wrote to memory of 1824	3484	2025-02-06_4dac4f3814cf7bd74dc29a03337a81d4_mafia.exe	84
PID 3484 wrote to memory of 1824	3484	2025-02-06_4dac4f3814cf7bd74dc29a03337a81d4_mafia.exe	84
PID 3484 wrote to memory of 2640	3484	2025-02-06_4dac4f3814cf7bd74dc29a03337a81d4_mafia.exe	86
PID 3484 wrote to memory of 2640	3484	2025-02-06_4dac4f3814cf7bd74dc29a03337a81d4_mafia.exe	86
PID 3484 wrote to memory of 2640	3484	2025-02-06_4dac4f3814cf7bd74dc29a03337a81d4_mafia.exe	86
PID 3484 wrote to memory of 4308	3484	2025-02-06_4dac4f3814cf7bd74dc29a03337a81d4_mafia.exe	88
PID 3484 wrote to memory of 4308	3484	2025-02-06_4dac4f3814cf7bd74dc29a03337a81d4_mafia.exe	88
PID 3484 wrote to memory of 4308	3484	2025-02-06_4dac4f3814cf7bd74dc29a03337a81d4_mafia.exe	88
PID 3484 wrote to memory of 4144	3484	2025-02-06_4dac4f3814cf7bd74dc29a03337a81d4_mafia.exe	90
PID 3484 wrote to memory of 4144	3484	2025-02-06_4dac4f3814cf7bd74dc29a03337a81d4_mafia.exe	90
PID 3484 wrote to memory of 4144	3484	2025-02-06_4dac4f3814cf7bd74dc29a03337a81d4_mafia.exe	90
PID 4108 wrote to memory of 1292	4108	wrvndoqo.exe	93
PID 4108 wrote to memory of 1292	4108	wrvndoqo.exe	93
PID 4108 wrote to memory of 1292	4108	wrvndoqo.exe	93
PID 4108 wrote to memory of 1292	4108	wrvndoqo.exe	93
PID 4108 wrote to memory of 1292	4108	wrvndoqo.exe	93
PID 3484 wrote to memory of 3004	3484	2025-02-06_4dac4f3814cf7bd74dc29a03337a81d4_mafia.exe	96
PID 3484 wrote to memory of 3004	3484	2025-02-06_4dac4f3814cf7bd74dc29a03337a81d4_mafia.exe	96
PID 3484 wrote to memory of 3004	3484	2025-02-06_4dac4f3814cf7bd74dc29a03337a81d4_mafia.exe	96

C:\Users\Admin\AppData\Local\Temp\2025-02-06_4dac4f3814cf7bd74dc29a03337a81d4_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-06_4dac4f3814cf7bd74dc29a03337a81d4_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3484
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gmyawqge\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2060
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\wrvndoqo.exe" C:\Windows\SysWOW64\gmyawqge\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1824
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gmyawqge binPath= "C:\Windows\SysWOW64\gmyawqge\wrvndoqo.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-06_4dac4f3814cf7bd74dc29a03337a81d4_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2640
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gmyawqge "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4308
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gmyawqge
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4144
- 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:3004
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3484 -s 1244
  2⤵
  - Program crash
  PID:3176

C:\Windows\SysWOW64\gmyawqge\wrvndoqo.exe
C:\Windows\SysWOW64\gmyawqge\wrvndoqo.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-06_4dac4f3814cf7bd74dc29a03337a81d4_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4108
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1292
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4108 -s 528
  2⤵
  - Program crash
  PID:5104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4108 -ip 4108
1⤵
PID:2316

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3484 -ip 3484
1⤵
PID:3744

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\wrvndoqo.exe

Filesize
13.1MB

MD5
a992a8b38e57e89703796622c964c46a

SHA1
e5ca16a17caaf801ecbe08ff1c1b61e5b1b13c4e

SHA256
c46946d6c575b713eca1e2497c23b3e30fbc3000b4efc9ae096722cf1ca7f309

SHA512
b81f3abdc0bb6ac7430fd4c8fc3f34c675f02823631a28b77dd653eb32a8cc980b69d4527dcbe502c0de58675c32ecddd4b5f42e690481c53e7835afbb13bf7a

Download Submit
memory/1292-8-0x0000000000D50000-0x0000000000D65000-memory.dmp

Filesize
84KB

Download
memory/1292-14-0x0000000000D50000-0x0000000000D65000-memory.dmp

Filesize
84KB

Download
memory/1292-15-0x0000000000D50000-0x0000000000D65000-memory.dmp

Filesize
84KB

Download
memory/3484-1-0x0000000002FC0000-0x00000000030C0000-memory.dmp

Filesize
1024KB

Download
memory/3484-2-0x0000000002F00000-0x0000000002F13000-memory.dmp

Filesize
76KB

Download
memory/3484-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3484-12-0x0000000002F00000-0x0000000002F13000-memory.dmp

Filesize
76KB

Download
memory/3484-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3484-11-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download
memory/4108-10-0x0000000000400000-0x0000000002DC3000-memory.dmp

Filesize
41.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads