tofsee | 6888e53dbdbe4f13e3f4b8ca654fe33bedfc156b89fda15b6c26b4e316110ebd

General

Target

2025-02-07_9fd669b4bb30a4f6b3eddf8f76164ef7_mafia.exe
Size

11.9MB
MD5

9fd669b4bb30a4f6b3eddf8f76164ef7
SHA1

6fe718c9eed91c0c121e039f353bc9aea98c57ee
SHA256

6888e53dbdbe4f13e3f4b8ca654fe33bedfc156b89fda15b6c26b4e316110ebd
SHA512

4ad06a167f3902295a138c395b48fa6d0c327de9a3ca2a016728c3805f12de0953a5bd587595cf440fba01675ca9c6fb4d75b5f6ae062a9da8e0a25a06009dc2
SSDEEP

6144:wLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQN: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

Downloads MZ/PE file 1 IoCs

flow	pid	Process
58	1644	Process not Found

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
4232	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\gdhpxtnz\ImagePath = "C:\\Windows\\SysWOW64\\gdhpxtnz\\vrjjgvui.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-1-5-21-189444705-1272902858-1305688695-1000\Control Panel\International\Geo\Nation	2025-02-07_9fd669b4bb30a4f6b3eddf8f76164ef7_mafia.exe

Deletes itself 1 IoCs

pid	Process
1904	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
4928	vrjjgvui.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4928 set thread context of 1904	4928	vrjjgvui.exe	104

Launches sc.exe 3 IoCs

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

pid	Process
4412	sc.exe
2592	sc.exe
4060	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
624	3632	WerFault.exe	85
8	4928	WerFault.exe	99

System Location Discovery: System Language Discovery 1 TTPs 10 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	vrjjgvui.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-07_9fd669b4bb30a4f6b3eddf8f76164ef7_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	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	MicrosoftEdgeUpdate.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
2000	MicrosoftEdgeUpdate.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3632 wrote to memory of 3864	3632	2025-02-07_9fd669b4bb30a4f6b3eddf8f76164ef7_mafia.exe	89
PID 3632 wrote to memory of 3864	3632	2025-02-07_9fd669b4bb30a4f6b3eddf8f76164ef7_mafia.exe	89
PID 3632 wrote to memory of 3864	3632	2025-02-07_9fd669b4bb30a4f6b3eddf8f76164ef7_mafia.exe	89
PID 3632 wrote to memory of 2184	3632	2025-02-07_9fd669b4bb30a4f6b3eddf8f76164ef7_mafia.exe	91
PID 3632 wrote to memory of 2184	3632	2025-02-07_9fd669b4bb30a4f6b3eddf8f76164ef7_mafia.exe	91
PID 3632 wrote to memory of 2184	3632	2025-02-07_9fd669b4bb30a4f6b3eddf8f76164ef7_mafia.exe	91
PID 3632 wrote to memory of 4060	3632	2025-02-07_9fd669b4bb30a4f6b3eddf8f76164ef7_mafia.exe	93
PID 3632 wrote to memory of 4060	3632	2025-02-07_9fd669b4bb30a4f6b3eddf8f76164ef7_mafia.exe	93
PID 3632 wrote to memory of 4060	3632	2025-02-07_9fd669b4bb30a4f6b3eddf8f76164ef7_mafia.exe	93
PID 3632 wrote to memory of 4412	3632	2025-02-07_9fd669b4bb30a4f6b3eddf8f76164ef7_mafia.exe	95
PID 3632 wrote to memory of 4412	3632	2025-02-07_9fd669b4bb30a4f6b3eddf8f76164ef7_mafia.exe	95
PID 3632 wrote to memory of 4412	3632	2025-02-07_9fd669b4bb30a4f6b3eddf8f76164ef7_mafia.exe	95
PID 3632 wrote to memory of 2592	3632	2025-02-07_9fd669b4bb30a4f6b3eddf8f76164ef7_mafia.exe	97
PID 3632 wrote to memory of 2592	3632	2025-02-07_9fd669b4bb30a4f6b3eddf8f76164ef7_mafia.exe	97
PID 3632 wrote to memory of 2592	3632	2025-02-07_9fd669b4bb30a4f6b3eddf8f76164ef7_mafia.exe	97
PID 3632 wrote to memory of 4232	3632	2025-02-07_9fd669b4bb30a4f6b3eddf8f76164ef7_mafia.exe	100
PID 3632 wrote to memory of 4232	3632	2025-02-07_9fd669b4bb30a4f6b3eddf8f76164ef7_mafia.exe	100
PID 3632 wrote to memory of 4232	3632	2025-02-07_9fd669b4bb30a4f6b3eddf8f76164ef7_mafia.exe	100
PID 4928 wrote to memory of 1904	4928	vrjjgvui.exe	104
PID 4928 wrote to memory of 1904	4928	vrjjgvui.exe	104
PID 4928 wrote to memory of 1904	4928	vrjjgvui.exe	104
PID 4928 wrote to memory of 1904	4928	vrjjgvui.exe	104
PID 4928 wrote to memory of 1904	4928	vrjjgvui.exe	104

C:\Users\Admin\AppData\Local\Temp\2025-02-07_9fd669b4bb30a4f6b3eddf8f76164ef7_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-07_9fd669b4bb30a4f6b3eddf8f76164ef7_mafia.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3632
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gdhpxtnz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3864
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vrjjgvui.exe" C:\Windows\SysWOW64\gdhpxtnz\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2184
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create gdhpxtnz binPath= "C:\Windows\SysWOW64\gdhpxtnz\vrjjgvui.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-07_9fd669b4bb30a4f6b3eddf8f76164ef7_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4060
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description gdhpxtnz "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:4412
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start gdhpxtnz
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2592
- 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:4232
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3632 -s 652
  2⤵
  - Program crash
  PID:624

C:\Windows\SysWOW64\gdhpxtnz\vrjjgvui.exe
C:\Windows\SysWOW64\gdhpxtnz\vrjjgvui.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-07_9fd669b4bb30a4f6b3eddf8f76164ef7_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4928
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1904
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4928 -s 560
  2⤵
  - Program crash
  PID:8

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3632 -ip 3632
1⤵
PID:2864

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 4928 -ip 4928
1⤵
PID:4604

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDU5MjEiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxODE5ODA3NzAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MTk3NzIyNTE5Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:2000

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

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
14.7MB

MD5
753c99eace06be8fdc312871b752c2eb

SHA1
18c388e6d23ca9bd45a17aad50ce2bf5146a679a

SHA256
e939672b6822cb204423122a503b9591547ed96ce2d1caf9fd51a2669ec0326b

SHA512
7b19d1852164880bff01ecaa7b917f1fea11ee96efc1534ecae89b997e68abed7c3d126b5e949c5b021e84bcbfafbf70455c15eff0d28fb7c89b555ab3004c5b

Download Submit
memory/1904-13-0x00000000002A0000-0x00000000002B5000-memory.dmp

Filesize
84KB

Download
memory/1904-21-0x00000000002A0000-0x00000000002B5000-memory.dmp

Filesize
84KB

Download
memory/1904-20-0x00000000002A0000-0x00000000002B5000-memory.dmp

Filesize
84KB

Download
memory/1904-19-0x00000000002A0000-0x00000000002B5000-memory.dmp

Filesize
84KB

Download
memory/1904-10-0x00000000002A0000-0x00000000002B5000-memory.dmp

Filesize
84KB

Download
memory/3632-16-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3632-15-0x00000000005E0000-0x00000000005F3000-memory.dmp

Filesize
76KB

Download
memory/3632-1-0x0000000000720000-0x0000000000820000-memory.dmp

Filesize
1024KB

Download
memory/3632-14-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/3632-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/3632-2-0x00000000005E0000-0x00000000005F3000-memory.dmp

Filesize
76KB

Download
memory/4928-8-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4928-18-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4928-9-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads